./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product04.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fd671-73ce-4a20-bd4f-5d334d09067b/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fd671-73ce-4a20-bd4f-5d334d09067b/bin/utaipan-6cKwYrpEi9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fd671-73ce-4a20-bd4f-5d334d09067b/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fd671-73ce-4a20-bd4f-5d334d09067b/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product04.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fd671-73ce-4a20-bd4f-5d334d09067b/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fd671-73ce-4a20-bd4f-5d334d09067b/bin/utaipan-6cKwYrpEi9 --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 67e8a37948bd5f43a3fb7848f413432f70349c69c24953f933a261c7c5558ab6 --- 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-6b4ec56 [2022-11-20 21:08:48,656 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 21:08:48,658 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 21:08:48,692 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 21:08:48,693 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 21:08:48,698 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 21:08:48,701 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 21:08:48,707 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 21:08:48,712 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 21:08:48,719 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 21:08:48,722 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 21:08:48,724 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 21:08:48,725 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 21:08:48,729 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 21:08:48,732 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 21:08:48,734 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 21:08:48,737 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 21:08:48,738 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 21:08:48,740 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 21:08:48,748 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 21:08:48,751 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 21:08:48,754 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 21:08:48,756 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 21:08:48,758 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 21:08:48,764 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 21:08:48,765 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 21:08:48,765 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 21:08:48,766 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 21:08:48,766 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 21:08:48,767 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 21:08:48,772 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 21:08:48,773 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 21:08:48,775 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 21:08:48,777 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 21:08:48,780 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 21:08:48,781 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 21:08:48,782 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 21:08:48,782 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 21:08:48,783 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 21:08:48,786 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 21:08:48,787 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 21:08:48,788 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fd671-73ce-4a20-bd4f-5d334d09067b/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-20 21:08:48,846 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 21:08:48,851 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 21:08:48,852 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 21:08:48,852 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 21:08:48,853 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 21:08:48,854 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 21:08:48,854 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 21:08:48,854 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 21:08:48,854 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 21:08:48,855 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-20 21:08:48,856 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 21:08:48,856 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 21:08:48,857 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-20 21:08:48,857 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-20 21:08:48,857 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 21:08:48,858 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-20 21:08:48,858 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-20 21:08:48,858 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-20 21:08:48,859 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 21:08:48,860 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 21:08:48,860 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 21:08:48,860 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 21:08:48,861 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 21:08:48,861 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 21:08:48,861 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 21:08:48,862 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 21:08:48,862 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 21:08:48,863 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 21:08:48,863 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 21:08:48,863 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 21:08:48,864 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 21:08:48,864 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 21:08:48,864 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 21:08:48,865 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 21:08:48,865 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-20 21:08:48,865 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 21:08:48,866 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 21:08:48,866 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-20 21:08:48,866 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 21:08:48,867 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 21:08:48,867 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 21:08:48,867 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_8a6fd671-73ce-4a20-bd4f-5d334d09067b/bin/utaipan-6cKwYrpEi9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fd671-73ce-4a20-bd4f-5d334d09067b/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 67e8a37948bd5f43a3fb7848f413432f70349c69c24953f933a261c7c5558ab6 [2022-11-20 21:08:49,238 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 21:08:49,284 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 21:08:49,308 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 21:08:49,309 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 21:08:49,310 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 21:08:49,311 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fd671-73ce-4a20-bd4f-5d334d09067b/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/product-lines/minepump_spec1_product04.cil.c [2022-11-20 21:08:52,347 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 21:08:52,604 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 21:08:52,605 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fd671-73ce-4a20-bd4f-5d334d09067b/sv-benchmarks/c/product-lines/minepump_spec1_product04.cil.c [2022-11-20 21:08:52,616 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fd671-73ce-4a20-bd4f-5d334d09067b/bin/utaipan-6cKwYrpEi9/data/ff89f5c74/8a8fa4b76ed243c29fd6122785d61c55/FLAGf8d796051 [2022-11-20 21:08:52,633 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fd671-73ce-4a20-bd4f-5d334d09067b/bin/utaipan-6cKwYrpEi9/data/ff89f5c74/8a8fa4b76ed243c29fd6122785d61c55 [2022-11-20 21:08:52,636 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 21:08:52,638 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 21:08:52,639 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 21:08:52,640 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 21:08:52,644 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 21:08:52,645 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:08:52" (1/1) ... [2022-11-20 21:08:52,646 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@238d1363 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:08:52, skipping insertion in model container [2022-11-20 21:08:52,647 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:08:52" (1/1) ... [2022-11-20 21:08:52,655 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 21:08:52,716 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 21:08:52,863 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fd671-73ce-4a20-bd4f-5d334d09067b/sv-benchmarks/c/product-lines/minepump_spec1_product04.cil.c[1605,1618] [2022-11-20 21:08:52,984 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 21:08:52,996 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 21:08:53,012 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fd671-73ce-4a20-bd4f-5d334d09067b/sv-benchmarks/c/product-lines/minepump_spec1_product04.cil.c[1605,1618] [2022-11-20 21:08:53,069 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 21:08:53,090 INFO L208 MainTranslator]: Completed translation [2022-11-20 21:08:53,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:08:53 WrapperNode [2022-11-20 21:08:53,091 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 21:08:53,092 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 21:08:53,092 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 21:08:53,092 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 21:08:53,101 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:08:53" (1/1) ... [2022-11-20 21:08:53,127 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:08:53" (1/1) ... [2022-11-20 21:08:53,167 INFO L138 Inliner]: procedures = 51, calls = 91, calls flagged for inlining = 19, calls inlined = 16, statements flattened = 134 [2022-11-20 21:08:53,168 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 21:08:53,169 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 21:08:53,170 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 21:08:53,170 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 21:08:53,180 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:08:53" (1/1) ... [2022-11-20 21:08:53,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:08:53" (1/1) ... [2022-11-20 21:08:53,197 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:08:53" (1/1) ... [2022-11-20 21:08:53,197 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:08:53" (1/1) ... [2022-11-20 21:08:53,201 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:08:53" (1/1) ... [2022-11-20 21:08:53,215 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:08:53" (1/1) ... [2022-11-20 21:08:53,216 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:08:53" (1/1) ... [2022-11-20 21:08:53,227 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:08:53" (1/1) ... [2022-11-20 21:08:53,229 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 21:08:53,230 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 21:08:53,231 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 21:08:53,231 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 21:08:53,232 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:08:53" (1/1) ... [2022-11-20 21:08:53,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 21:08:53,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fd671-73ce-4a20-bd4f-5d334d09067b/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 21:08:53,272 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fd671-73ce-4a20-bd4f-5d334d09067b/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 21:08:53,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fd671-73ce-4a20-bd4f-5d334d09067b/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 21:08:53,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 21:08:53,327 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-20 21:08:53,328 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-20 21:08:53,328 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-20 21:08:53,328 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-20 21:08:53,328 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-20 21:08:53,329 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-20 21:08:53,329 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-20 21:08:53,329 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-20 21:08:53,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 21:08:53,329 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-20 21:08:53,330 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-20 21:08:53,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 21:08:53,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 21:08:53,420 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 21:08:53,423 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 21:08:53,648 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 21:08:53,823 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 21:08:53,823 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-20 21:08:53,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:08:53 BoogieIcfgContainer [2022-11-20 21:08:53,826 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 21:08:53,829 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 21:08:53,829 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 21:08:53,833 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 21:08:53,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:08:52" (1/3) ... [2022-11-20 21:08:53,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fb0f4bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:08:53, skipping insertion in model container [2022-11-20 21:08:53,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:08:53" (2/3) ... [2022-11-20 21:08:53,851 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fb0f4bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:08:53, skipping insertion in model container [2022-11-20 21:08:53,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:08:53" (3/3) ... [2022-11-20 21:08:53,853 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product04.cil.c [2022-11-20 21:08:53,894 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 21:08:53,894 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 21:08:53,998 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 21:08:54,007 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=FINITE_AUTOMATA, 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;@12ee0841, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 21:08:54,008 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 21:08:54,013 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 25 states have (on average 1.4) internal successors, (35), 29 states have internal predecessors, (35), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-20 21:08:54,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-20 21:08:54,023 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:08:54,023 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 21:08:54,024 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:08:54,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:08:54,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1155057877, now seen corresponding path program 1 times [2022-11-20 21:08:54,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:08:54,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031334733] [2022-11-20 21:08:54,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:08:54,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:08:54,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:08:54,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 21:08:54,343 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:08:54,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031334733] [2022-11-20 21:08:54,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031334733] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:08:54,345 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:08:54,345 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 21:08:54,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287051083] [2022-11-20 21:08:54,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:08:54,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 21:08:54,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:08:54,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 21:08:54,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 21:08:54,416 INFO L87 Difference]: Start difference. First operand has 39 states, 25 states have (on average 1.4) internal successors, (35), 29 states have internal predecessors, (35), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 21:08:54,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:08:54,521 INFO L93 Difference]: Finished difference Result 76 states and 99 transitions. [2022-11-20 21:08:54,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 21:08:54,524 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-11-20 21:08:54,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:08:54,534 INFO L225 Difference]: With dead ends: 76 [2022-11-20 21:08:54,534 INFO L226 Difference]: Without dead ends: 34 [2022-11-20 21:08:54,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 21:08:54,543 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 21:08:54,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 33 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 21:08:54,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-11-20 21:08:54,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2022-11-20 21:08:54,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 25 states have internal predecessors, (27), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-20 21:08:54,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 40 transitions. [2022-11-20 21:08:54,605 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 40 transitions. Word has length 14 [2022-11-20 21:08:54,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:08:54,606 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 40 transitions. [2022-11-20 21:08:54,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 21:08:54,608 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 40 transitions. [2022-11-20 21:08:54,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-20 21:08:54,612 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:08:54,613 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 21:08:54,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 21:08:54,614 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:08:54,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:08:54,616 INFO L85 PathProgramCache]: Analyzing trace with hash -9827942, now seen corresponding path program 1 times [2022-11-20 21:08:54,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:08:54,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103105779] [2022-11-20 21:08:54,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:08:54,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:08:54,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:08:54,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 21:08:54,818 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:08:54,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103105779] [2022-11-20 21:08:54,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103105779] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:08:54,819 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:08:54,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 21:08:54,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649107689] [2022-11-20 21:08:54,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:08:54,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 21:08:54,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:08:54,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 21:08:54,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 21:08:54,825 INFO L87 Difference]: Start difference. First operand 34 states and 40 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 21:08:54,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:08:54,890 INFO L93 Difference]: Finished difference Result 45 states and 51 transitions. [2022-11-20 21:08:54,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 21:08:54,890 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2022-11-20 21:08:54,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:08:54,891 INFO L225 Difference]: With dead ends: 45 [2022-11-20 21:08:54,892 INFO L226 Difference]: Without dead ends: 26 [2022-11-20 21:08:54,892 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 21:08:54,894 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 7 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 21:08:54,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 29 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 21:08:54,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-11-20 21:08:54,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-11-20 21:08:54,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 20 states have internal predecessors, (21), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 21:08:54,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2022-11-20 21:08:54,902 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 15 [2022-11-20 21:08:54,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:08:54,903 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2022-11-20 21:08:54,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 21:08:54,903 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2022-11-20 21:08:54,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-20 21:08:54,904 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:08:54,904 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 21:08:54,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 21:08:54,905 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:08:54,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:08:54,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1108990526, now seen corresponding path program 1 times [2022-11-20 21:08:54,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:08:54,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125174913] [2022-11-20 21:08:54,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:08:54,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:08:54,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:08:55,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 21:08:55,198 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:08:55,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125174913] [2022-11-20 21:08:55,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125174913] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:08:55,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:08:55,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 21:08:55,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316006457] [2022-11-20 21:08:55,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:08:55,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 21:08:55,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:08:55,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 21:08:55,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 21:08:55,201 INFO L87 Difference]: Start difference. First operand 26 states and 29 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 21:08:55,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:08:55,395 INFO L93 Difference]: Finished difference Result 72 states and 83 transitions. [2022-11-20 21:08:55,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 21:08:55,396 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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 17 [2022-11-20 21:08:55,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:08:55,420 INFO L225 Difference]: With dead ends: 72 [2022-11-20 21:08:55,420 INFO L226 Difference]: Without dead ends: 48 [2022-11-20 21:08:55,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-20 21:08:55,422 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 14 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 21:08:55,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 93 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 21:08:55,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-11-20 21:08:55,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 44. [2022-11-20 21:08:55,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 29 states have (on average 1.206896551724138) internal successors, (35), 33 states have internal predecessors, (35), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-20 21:08:55,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 49 transitions. [2022-11-20 21:08:55,452 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 49 transitions. Word has length 17 [2022-11-20 21:08:55,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:08:55,453 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 49 transitions. [2022-11-20 21:08:55,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 21:08:55,453 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 49 transitions. [2022-11-20 21:08:55,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-20 21:08:55,454 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:08:55,454 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 21:08:55,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 21:08:55,455 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:08:55,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:08:55,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1767429813, now seen corresponding path program 1 times [2022-11-20 21:08:55,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:08:55,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960425480] [2022-11-20 21:08:55,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:08:55,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:08:55,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:08:55,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 21:08:55,797 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:08:55,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960425480] [2022-11-20 21:08:55,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960425480] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:08:55,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:08:55,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 21:08:55,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510896019] [2022-11-20 21:08:55,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:08:55,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 21:08:55,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:08:55,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 21:08:55,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 21:08:55,800 INFO L87 Difference]: Start difference. First operand 44 states and 49 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 21:08:55,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:08:55,861 INFO L93 Difference]: Finished difference Result 46 states and 51 transitions. [2022-11-20 21:08:55,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 21:08:55,862 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2022-11-20 21:08:55,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:08:55,863 INFO L225 Difference]: With dead ends: 46 [2022-11-20 21:08:55,863 INFO L226 Difference]: Without dead ends: 0 [2022-11-20 21:08:55,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 21:08:55,865 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 16 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 21:08:55,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 34 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 21:08:55,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-20 21:08:55,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-20 21:08:55,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 21:08:55,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-20 21:08:55,875 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2022-11-20 21:08:55,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:08:55,875 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 21:08:55,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 21:08:55,876 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-20 21:08:55,876 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 21:08:55,883 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-20 21:08:55,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 21:08:55,886 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-20 21:08:56,034 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 665 676) the Hoare annotation is: true [2022-11-20 21:08:56,034 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 665 676) no Hoare annotation was computed. [2022-11-20 21:08:56,051 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 677 685) the Hoare annotation is: true [2022-11-20 21:08:56,051 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 677 685) no Hoare annotation was computed. [2022-11-20 21:08:56,051 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 784 813) no Hoare annotation was computed. [2022-11-20 21:08:56,051 INFO L899 garLoopResultBuilder]: For program point L798(lines 798 802) no Hoare annotation was computed. [2022-11-20 21:08:56,052 INFO L902 garLoopResultBuilder]: At program point L798-1(lines 798 802) the Hoare annotation is: true [2022-11-20 21:08:56,052 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 784 813) the Hoare annotation is: true [2022-11-20 21:08:56,052 INFO L902 garLoopResultBuilder]: At program point L794-2(lines 794 808) the Hoare annotation is: true [2022-11-20 21:08:56,052 INFO L902 garLoopResultBuilder]: At program point L790(line 790) the Hoare annotation is: true [2022-11-20 21:08:56,053 INFO L899 garLoopResultBuilder]: For program point L790-1(line 790) no Hoare annotation was computed. [2022-11-20 21:08:56,053 INFO L902 garLoopResultBuilder]: At program point L809(lines 784 813) the Hoare annotation is: true [2022-11-20 21:08:56,053 INFO L899 garLoopResultBuilder]: For program point L805(line 805) no Hoare annotation was computed. [2022-11-20 21:08:56,053 INFO L895 garLoopResultBuilder]: At program point L54(line 54) the Hoare annotation is: (not (= ~pumpRunning~0 0)) [2022-11-20 21:08:56,053 INFO L899 garLoopResultBuilder]: For program point L769(lines 769 775) no Hoare annotation was computed. [2022-11-20 21:08:56,054 INFO L895 garLoopResultBuilder]: At program point L765(lines 765 778) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (= |timeShift___utac_acc__Specification1_spec__1_~tmp~4#1| 0) (not (= ~methaneLevelCritical~0 0))) [2022-11-20 21:08:56,054 INFO L895 garLoopResultBuilder]: At program point L765-1(lines 757 781) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (= |timeShift___utac_acc__Specification1_spec__1_~tmp~4#1| 0) (not (= ~methaneLevelCritical~0 0))) [2022-11-20 21:08:56,054 INFO L902 garLoopResultBuilder]: At program point L763(line 763) the Hoare annotation is: true [2022-11-20 21:08:56,054 INFO L899 garLoopResultBuilder]: For program point L763-1(line 763) no Hoare annotation was computed. [2022-11-20 21:08:56,055 INFO L902 garLoopResultBuilder]: At program point timeShiftENTRY(lines 145 168) the Hoare annotation is: true [2022-11-20 21:08:56,055 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 145 168) no Hoare annotation was computed. [2022-11-20 21:08:56,055 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2022-11-20 21:08:56,055 INFO L895 garLoopResultBuilder]: At program point L865(lines 865 872) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0)) [2022-11-20 21:08:56,056 INFO L895 garLoopResultBuilder]: At program point L97(line 97) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-20 21:08:56,056 INFO L902 garLoopResultBuilder]: At program point L865-2(lines 865 872) the Hoare annotation is: true [2022-11-20 21:08:56,056 INFO L895 garLoopResultBuilder]: At program point L122(lines 75 124) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-20 21:08:56,056 INFO L899 garLoopResultBuilder]: For program point L85(lines 85 91) no Hoare annotation was computed. [2022-11-20 21:08:56,056 INFO L899 garLoopResultBuilder]: For program point L85-1(lines 85 91) no Hoare annotation was computed. [2022-11-20 21:08:56,057 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-20 21:08:56,057 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-20 21:08:56,057 INFO L902 garLoopResultBuilder]: At program point L128(lines 65 132) the Hoare annotation is: true [2022-11-20 21:08:56,057 INFO L899 garLoopResultBuilder]: For program point L95(lines 95 101) no Hoare annotation was computed. [2022-11-20 21:08:56,057 INFO L895 garLoopResultBuilder]: At program point L95-1(lines 95 101) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-20 21:08:56,058 INFO L895 garLoopResultBuilder]: At program point L87(line 87) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-20 21:08:56,058 INFO L895 garLoopResultBuilder]: At program point L125(lines 74 126) the Hoare annotation is: false [2022-11-20 21:08:56,058 INFO L895 garLoopResultBuilder]: At program point L113-2(lines 105 120) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-20 21:08:56,058 INFO L899 garLoopResultBuilder]: For program point L76(lines 75 124) no Hoare annotation was computed. [2022-11-20 21:08:56,059 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 653 664) no Hoare annotation was computed. [2022-11-20 21:08:56,059 INFO L902 garLoopResultBuilder]: At program point waterRiseENTRY(lines 653 664) the Hoare annotation is: true [2022-11-20 21:08:56,062 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-20 21:08:56,064 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 21:08:56,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 09:08:56 BoogieIcfgContainer [2022-11-20 21:08:56,076 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 21:08:56,077 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 21:08:56,077 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 21:08:56,077 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 21:08:56,078 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:08:53" (3/4) ... [2022-11-20 21:08:56,080 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 21:08:56,086 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-20 21:08:56,086 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-11-20 21:08:56,086 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-20 21:08:56,086 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-20 21:08:56,087 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-20 21:08:56,094 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2022-11-20 21:08:56,095 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-11-20 21:08:56,095 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-20 21:08:56,095 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 21:08:56,096 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 21:08:56,175 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fd671-73ce-4a20-bd4f-5d334d09067b/bin/utaipan-6cKwYrpEi9/witness.graphml [2022-11-20 21:08:56,175 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 21:08:56,177 INFO L158 Benchmark]: Toolchain (without parser) took 3538.12ms. Allocated memory is still 190.8MB. Free memory was 156.7MB in the beginning and 114.7MB in the end (delta: 42.1MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2022-11-20 21:08:56,177 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 121.6MB. Free memory was 88.2MB in the beginning and 88.2MB in the end (delta: 29.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 21:08:56,178 INFO L158 Benchmark]: CACSL2BoogieTranslator took 451.79ms. Allocated memory is still 190.8MB. Free memory was 156.7MB in the beginning and 137.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-20 21:08:56,178 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.54ms. Allocated memory is still 190.8MB. Free memory was 137.9MB in the beginning and 135.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 21:08:56,179 INFO L158 Benchmark]: Boogie Preprocessor took 60.30ms. Allocated memory is still 190.8MB. Free memory was 135.8MB in the beginning and 134.8MB in the end (delta: 914.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 21:08:56,179 INFO L158 Benchmark]: RCFGBuilder took 596.12ms. Allocated memory is still 190.8MB. Free memory was 134.8MB in the beginning and 113.9MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-20 21:08:56,180 INFO L158 Benchmark]: TraceAbstraction took 2247.38ms. Allocated memory is still 190.8MB. Free memory was 112.7MB in the beginning and 118.9MB in the end (delta: -6.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 21:08:56,180 INFO L158 Benchmark]: Witness Printer took 98.24ms. Allocated memory is still 190.8MB. Free memory was 117.8MB in the beginning and 114.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 21:08:56,182 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 121.6MB. Free memory was 88.2MB in the beginning and 88.2MB in the end (delta: 29.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 451.79ms. Allocated memory is still 190.8MB. Free memory was 156.7MB in the beginning and 137.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.54ms. Allocated memory is still 190.8MB. Free memory was 137.9MB in the beginning and 135.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.30ms. Allocated memory is still 190.8MB. Free memory was 135.8MB in the beginning and 134.8MB in the end (delta: 914.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 596.12ms. Allocated memory is still 190.8MB. Free memory was 134.8MB in the beginning and 113.9MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 2247.38ms. Allocated memory is still 190.8MB. Free memory was 112.7MB in the beginning and 118.9MB in the end (delta: -6.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 98.24ms. Allocated memory is still 190.8MB. Free memory was 117.8MB in the beginning and 114.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 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 6 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.1s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 42 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 37 mSDsluCounter, 189 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 99 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 115 IncrementalHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 90 mSDtfsCounter, 115 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=3, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 23 LocationsWithAnnotation, 72 PreInvPairs, 87 NumberOfFragments, 84 HoareAnnotationTreeSize, 72 FomulaSimplifications, 21 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 23 FomulaSimplificationsInter, 128 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 62 ConstructedInterpolants, 0 QuantifiedInterpolants, 126 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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: 865]: Loop Invariant Derived loop invariant: pumpRunning == 0 && methaneLevelCritical == 0 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: !(pumpRunning == 0) - InvariantResult [Line: 74]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 765]: Loop Invariant Derived loop invariant: (!(pumpRunning == 0) || tmp == 0) || !(methaneLevelCritical == 0) - InvariantResult [Line: 784]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 145]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 865]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 794]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 95]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 - InvariantResult [Line: 75]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 - InvariantResult [Line: 757]: Loop Invariant Derived loop invariant: (!(pumpRunning == 0) || tmp == 0) || !(methaneLevelCritical == 0) RESULT: Ultimate proved your program to be correct! [2022-11-20 21:08:56,216 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a6fd671-73ce-4a20-bd4f-5d334d09067b/bin/utaipan-6cKwYrpEi9/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