./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product27.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633e4433-d5d0-4209-8d5e-5e026a83de68/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633e4433-d5d0-4209-8d5e-5e026a83de68/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633e4433-d5d0-4209-8d5e-5e026a83de68/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633e4433-d5d0-4209-8d5e-5e026a83de68/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product27.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633e4433-d5d0-4209-8d5e-5e026a83de68/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633e4433-d5d0-4209-8d5e-5e026a83de68/bin/utaipan-gh47qXpMRh --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 57a688f8a9792d29adbf3f8f01563f73a4548e3755afcb9efbc0eedec2ffc9fc --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 14:28:18,751 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 14:28:18,753 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 14:28:18,771 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 14:28:18,771 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 14:28:18,772 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 14:28:18,775 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 14:28:18,778 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 14:28:18,780 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 14:28:18,782 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 14:28:18,783 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 14:28:18,785 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 14:28:18,785 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 14:28:18,787 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 14:28:18,788 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 14:28:18,790 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 14:28:18,791 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 14:28:18,792 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 14:28:18,795 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 14:28:18,798 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 14:28:18,800 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 14:28:18,802 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 14:28:18,804 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 14:28:18,805 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 14:28:18,812 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 14:28:18,812 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 14:28:18,813 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 14:28:18,814 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 14:28:18,815 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 14:28:18,816 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 14:28:18,817 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 14:28:18,818 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 14:28:18,819 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 14:28:18,820 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 14:28:18,821 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 14:28:18,821 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 14:28:18,822 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 14:28:18,822 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 14:28:18,822 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 14:28:18,823 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 14:28:18,824 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 14:28:18,825 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633e4433-d5d0-4209-8d5e-5e026a83de68/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 14:28:18,850 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 14:28:18,850 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 14:28:18,850 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 14:28:18,850 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 14:28:18,851 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 14:28:18,851 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 14:28:18,851 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 14:28:18,852 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 14:28:18,852 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 14:28:18,852 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 14:28:18,852 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 14:28:18,852 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 14:28:18,853 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 14:28:18,853 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 14:28:18,853 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 14:28:18,853 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 14:28:18,853 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 14:28:18,854 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 14:28:18,854 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 14:28:18,855 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 14:28:18,855 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 14:28:18,855 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 14:28:18,855 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 14:28:18,855 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 14:28:18,855 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 14:28:18,856 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 14:28:18,856 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 14:28:18,856 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 14:28:18,856 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 14:28:18,856 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 14:28:18,856 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 14:28:18,857 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 14:28:18,857 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:28:18,857 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 14:28:18,857 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 14:28:18,857 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 14:28:18,858 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 14:28:18,858 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 14:28:18,858 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 14:28:18,858 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 14:28:18,859 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 14:28:18,859 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_633e4433-d5d0-4209-8d5e-5e026a83de68/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633e4433-d5d0-4209-8d5e-5e026a83de68/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 57a688f8a9792d29adbf3f8f01563f73a4548e3755afcb9efbc0eedec2ffc9fc [2022-12-14 14:28:19,026 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 14:28:19,046 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 14:28:19,049 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 14:28:19,050 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 14:28:19,050 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 14:28:19,052 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633e4433-d5d0-4209-8d5e-5e026a83de68/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/minepump_spec1_product27.cil.c [2022-12-14 14:28:21,662 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 14:28:21,869 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 14:28:21,870 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633e4433-d5d0-4209-8d5e-5e026a83de68/sv-benchmarks/c/product-lines/minepump_spec1_product27.cil.c [2022-12-14 14:28:21,885 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633e4433-d5d0-4209-8d5e-5e026a83de68/bin/utaipan-gh47qXpMRh/data/2ca366768/c8e91f1328a14538b1ba970325000159/FLAGd1eea9368 [2022-12-14 14:28:21,898 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633e4433-d5d0-4209-8d5e-5e026a83de68/bin/utaipan-gh47qXpMRh/data/2ca366768/c8e91f1328a14538b1ba970325000159 [2022-12-14 14:28:21,900 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 14:28:21,902 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 14:28:21,903 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 14:28:21,903 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 14:28:21,906 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 14:28:21,907 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:28:21" (1/1) ... [2022-12-14 14:28:21,907 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c6b6ad3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:28:21, skipping insertion in model container [2022-12-14 14:28:21,907 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:28:21" (1/1) ... [2022-12-14 14:28:21,913 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 14:28:21,951 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 14:28:22,078 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_633e4433-d5d0-4209-8d5e-5e026a83de68/sv-benchmarks/c/product-lines/minepump_spec1_product27.cil.c[2141,2154] [2022-12-14 14:28:22,171 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:28:22,182 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 14:28:22,196 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_633e4433-d5d0-4209-8d5e-5e026a83de68/sv-benchmarks/c/product-lines/minepump_spec1_product27.cil.c[2141,2154] [2022-12-14 14:28:22,232 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:28:22,244 INFO L208 MainTranslator]: Completed translation [2022-12-14 14:28:22,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:28:22 WrapperNode [2022-12-14 14:28:22,245 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 14:28:22,245 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 14:28:22,245 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 14:28:22,246 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 14:28:22,251 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:28:22" (1/1) ... [2022-12-14 14:28:22,260 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:28:22" (1/1) ... [2022-12-14 14:28:22,275 INFO L138 Inliner]: procedures = 54, calls = 97, calls flagged for inlining = 21, calls inlined = 16, statements flattened = 160 [2022-12-14 14:28:22,276 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 14:28:22,276 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 14:28:22,276 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 14:28:22,276 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 14:28:22,283 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:28:22" (1/1) ... [2022-12-14 14:28:22,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:28:22" (1/1) ... [2022-12-14 14:28:22,284 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:28:22" (1/1) ... [2022-12-14 14:28:22,284 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:28:22" (1/1) ... [2022-12-14 14:28:22,287 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:28:22" (1/1) ... [2022-12-14 14:28:22,289 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:28:22" (1/1) ... [2022-12-14 14:28:22,290 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:28:22" (1/1) ... [2022-12-14 14:28:22,291 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:28:22" (1/1) ... [2022-12-14 14:28:22,293 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 14:28:22,293 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 14:28:22,293 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 14:28:22,294 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 14:28:22,294 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:28:22" (1/1) ... [2022-12-14 14:28:22,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:28:22,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633e4433-d5d0-4209-8d5e-5e026a83de68/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:28:22,318 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633e4433-d5d0-4209-8d5e-5e026a83de68/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 14:28:22,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633e4433-d5d0-4209-8d5e-5e026a83de68/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 14:28:22,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 14:28:22,353 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-12-14 14:28:22,354 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-12-14 14:28:22,354 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-12-14 14:28:22,354 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-12-14 14:28:22,354 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-12-14 14:28:22,354 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-12-14 14:28:22,354 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-12-14 14:28:22,355 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-12-14 14:28:22,355 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-12-14 14:28:22,355 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-12-14 14:28:22,355 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-12-14 14:28:22,355 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-12-14 14:28:22,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 14:28:22,355 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-12-14 14:28:22,356 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-12-14 14:28:22,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 14:28:22,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 14:28:22,422 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 14:28:22,424 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 14:28:22,634 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 14:28:22,701 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 14:28:22,701 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 14:28:22,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:28:22 BoogieIcfgContainer [2022-12-14 14:28:22,703 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 14:28:22,705 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 14:28:22,706 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 14:28:22,708 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 14:28:22,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 02:28:21" (1/3) ... [2022-12-14 14:28:22,709 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5913896f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:28:22, skipping insertion in model container [2022-12-14 14:28:22,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:28:22" (2/3) ... [2022-12-14 14:28:22,709 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5913896f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:28:22, skipping insertion in model container [2022-12-14 14:28:22,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:28:22" (3/3) ... [2022-12-14 14:28:22,710 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product27.cil.c [2022-12-14 14:28:22,725 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 14:28:22,725 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 14:28:22,764 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 14:28:22,771 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;@60c899c5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 14:28:22,771 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 14:28:22,774 INFO L276 IsEmpty]: Start isEmpty. Operand has 56 states, 36 states have (on average 1.4444444444444444) internal successors, (52), 43 states have internal predecessors, (52), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 14:28:22,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-14 14:28:22,781 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:28:22,781 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:28:22,782 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:28:22,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:28:22,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1990691764, now seen corresponding path program 1 times [2022-12-14 14:28:22,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:28:22,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932169714] [2022-12-14 14:28:22,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:28:22,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:28:22,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:28:22,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:28:22,927 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:28:22,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932169714] [2022-12-14 14:28:22,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932169714] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:28:22,928 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:28:22,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 14:28:22,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983972313] [2022-12-14 14:28:22,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:28:22,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 14:28:22,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:28:22,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 14:28:22,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 14:28:22,957 INFO L87 Difference]: Start difference. First operand has 56 states, 36 states have (on average 1.4444444444444444) internal successors, (52), 43 states have internal predecessors, (52), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2022-12-14 14:28:23,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:28:23,015 INFO L93 Difference]: Finished difference Result 110 states and 149 transitions. [2022-12-14 14:28:23,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 14:28:23,017 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 16 [2022-12-14 14:28:23,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:28:23,023 INFO L225 Difference]: With dead ends: 110 [2022-12-14 14:28:23,024 INFO L226 Difference]: Without dead ends: 51 [2022-12-14 14:28:23,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 14:28:23,029 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:28:23,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 56 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:28:23,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-12-14 14:28:23,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-12-14 14:28:23,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 39 states have internal predecessors, (44), 11 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2022-12-14 14:28:23,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 65 transitions. [2022-12-14 14:28:23,060 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 65 transitions. Word has length 16 [2022-12-14 14:28:23,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:28:23,060 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 65 transitions. [2022-12-14 14:28:23,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2022-12-14 14:28:23,060 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 65 transitions. [2022-12-14 14:28:23,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 14:28:23,062 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:28:23,062 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:28:23,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 14:28:23,062 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:28:23,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:28:23,063 INFO L85 PathProgramCache]: Analyzing trace with hash 495280494, now seen corresponding path program 1 times [2022-12-14 14:28:23,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:28:23,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457130393] [2022-12-14 14:28:23,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:28:23,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:28:23,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:28:23,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:28:23,132 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:28:23,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457130393] [2022-12-14 14:28:23,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457130393] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:28:23,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:28:23,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:28:23,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084479591] [2022-12-14 14:28:23,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:28:23,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:28:23,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:28:23,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:28:23,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:28:23,136 INFO L87 Difference]: Start difference. First operand 51 states and 65 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) [2022-12-14 14:28:23,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:28:23,167 INFO L93 Difference]: Finished difference Result 74 states and 92 transitions. [2022-12-14 14:28:23,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:28:23,168 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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 17 [2022-12-14 14:28:23,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:28:23,169 INFO L225 Difference]: With dead ends: 74 [2022-12-14 14:28:23,170 INFO L226 Difference]: Without dead ends: 43 [2022-12-14 14:28:23,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:28:23,172 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 14 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 67 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 [2022-12-14 14:28:23,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 67 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:28:23,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-12-14 14:28:23,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2022-12-14 14:28:23,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 34 states have internal predecessors, (38), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-14 14:28:23,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 54 transitions. [2022-12-14 14:28:23,178 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 54 transitions. Word has length 17 [2022-12-14 14:28:23,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:28:23,179 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 54 transitions. [2022-12-14 14:28:23,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) [2022-12-14 14:28:23,179 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 54 transitions. [2022-12-14 14:28:23,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 14:28:23,180 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:28:23,180 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:28:23,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 14:28:23,180 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:28:23,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:28:23,181 INFO L85 PathProgramCache]: Analyzing trace with hash 1089405554, now seen corresponding path program 1 times [2022-12-14 14:28:23,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:28:23,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229501160] [2022-12-14 14:28:23,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:28:23,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:28:23,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:28:23,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:28:23,257 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:28:23,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229501160] [2022-12-14 14:28:23,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229501160] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:28:23,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:28:23,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:28:23,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776361540] [2022-12-14 14:28:23,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:28:23,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:28:23,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:28:23,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:28:23,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:28:23,260 INFO L87 Difference]: Start difference. First operand 43 states and 54 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 14:28:23,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:28:23,304 INFO L93 Difference]: Finished difference Result 125 states and 159 transitions. [2022-12-14 14:28:23,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:28:23,305 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2022-12-14 14:28:23,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:28:23,307 INFO L225 Difference]: With dead ends: 125 [2022-12-14 14:28:23,307 INFO L226 Difference]: Without dead ends: 84 [2022-12-14 14:28:23,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:28:23,308 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 41 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:28:23,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 96 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:28:23,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2022-12-14 14:28:23,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 81. [2022-12-14 14:28:23,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 52 states have (on average 1.3653846153846154) internal successors, (71), 63 states have internal predecessors, (71), 16 states have call successors, (16), 12 states have call predecessors, (16), 12 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2022-12-14 14:28:23,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 103 transitions. [2022-12-14 14:28:23,326 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 103 transitions. Word has length 20 [2022-12-14 14:28:23,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:28:23,326 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 103 transitions. [2022-12-14 14:28:23,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 14:28:23,326 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 103 transitions. [2022-12-14 14:28:23,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-14 14:28:23,327 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:28:23,327 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:28:23,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 14:28:23,328 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:28:23,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:28:23,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1495540882, now seen corresponding path program 1 times [2022-12-14 14:28:23,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:28:23,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761632538] [2022-12-14 14:28:23,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:28:23,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:28:23,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:28:23,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:28:23,412 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:28:23,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761632538] [2022-12-14 14:28:23,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761632538] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:28:23,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:28:23,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 14:28:23,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065775173] [2022-12-14 14:28:23,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:28:23,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 14:28:23,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:28:23,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 14:28:23,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 14:28:23,414 INFO L87 Difference]: Start difference. First operand 81 states and 103 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 14:28:23,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:28:23,517 INFO L93 Difference]: Finished difference Result 237 states and 306 transitions. [2022-12-14 14:28:23,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 14:28:23,517 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 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 23 [2022-12-14 14:28:23,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:28:23,519 INFO L225 Difference]: With dead ends: 237 [2022-12-14 14:28:23,519 INFO L226 Difference]: Without dead ends: 158 [2022-12-14 14:28:23,519 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 [2022-12-14 14:28:23,520 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 33 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:28:23,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 214 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:28:23,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2022-12-14 14:28:23,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 150. [2022-12-14 14:28:23,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 97 states have (on average 1.3505154639175259) internal successors, (131), 116 states have internal predecessors, (131), 30 states have call successors, (30), 22 states have call predecessors, (30), 22 states have return successors, (30), 20 states have call predecessors, (30), 30 states have call successors, (30) [2022-12-14 14:28:23,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 191 transitions. [2022-12-14 14:28:23,538 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 191 transitions. Word has length 23 [2022-12-14 14:28:23,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:28:23,538 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 191 transitions. [2022-12-14 14:28:23,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 14:28:23,539 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 191 transitions. [2022-12-14 14:28:23,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-12-14 14:28:23,539 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:28:23,539 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] [2022-12-14 14:28:23,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 14:28:23,540 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:28:23,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:28:23,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1555843654, now seen corresponding path program 1 times [2022-12-14 14:28:23,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:28:23,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523651060] [2022-12-14 14:28:23,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:28:23,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:28:23,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:28:23,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:28:23,662 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:28:23,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523651060] [2022-12-14 14:28:23,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523651060] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:28:23,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:28:23,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:28:23,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447538259] [2022-12-14 14:28:23,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:28:23,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:28:23,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:28:23,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:28:23,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:28:23,664 INFO L87 Difference]: Start difference. First operand 150 states and 191 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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) [2022-12-14 14:28:23,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:28:23,710 INFO L93 Difference]: Finished difference Result 276 states and 351 transitions. [2022-12-14 14:28:23,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:28:23,711 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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 26 [2022-12-14 14:28:23,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:28:23,711 INFO L225 Difference]: With dead ends: 276 [2022-12-14 14:28:23,711 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 14:28:23,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:28:23,713 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 24 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:28:23,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 57 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:28:23,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 14:28:23,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 14:28:23,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:28:23,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 14:28:23,714 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2022-12-14 14:28:23,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:28:23,714 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 14:28:23,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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) [2022-12-14 14:28:23,715 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 14:28:23,715 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 14:28:23,717 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 14:28:23,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 14:28:23,719 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 14:28:24,079 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 841 848) no Hoare annotation was computed. [2022-12-14 14:28:24,080 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 841 848) the Hoare annotation is: true [2022-12-14 14:28:24,080 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 782 788) no Hoare annotation was computed. [2022-12-14 14:28:24,080 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 782 788) the Hoare annotation is: true [2022-12-14 14:28:24,080 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 130 141) the Hoare annotation is: true [2022-12-14 14:28:24,080 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 130 141) no Hoare annotation was computed. [2022-12-14 14:28:24,080 INFO L899 garLoopResultBuilder]: For program point L762-1(lines 761 780) no Hoare annotation was computed. [2022-12-14 14:28:24,081 INFO L895 garLoopResultBuilder]: At program point L804(line 804) the Hoare annotation is: (or (not (<= |old(~pumpRunning~0)| 0)) (not (<= 0 |old(~pumpRunning~0)|))) [2022-12-14 14:28:24,081 INFO L895 garLoopResultBuilder]: At program point L800(line 800) the Hoare annotation is: (or (not (<= |old(~pumpRunning~0)| 0)) (not (<= 0 |old(~pumpRunning~0)|))) [2022-12-14 14:28:24,081 INFO L899 garLoopResultBuilder]: For program point L206(lines 206 212) no Hoare annotation was computed. [2022-12-14 14:28:24,081 INFO L895 garLoopResultBuilder]: At program point L202(lines 202 215) the Hoare annotation is: (let ((.cse0 (not (<= |old(~pumpRunning~0)| 0))) (.cse1 (not (<= 0 |old(~pumpRunning~0)|)))) (and (or (and (<= ~pumpRunning~0 0) (<= 0 ~pumpRunning~0)) .cse0 .cse1) (or (= |timeShift___utac_acc__Specification1_spec__1_~tmp~0#1| 0) .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1))) [2022-12-14 14:28:24,081 INFO L895 garLoopResultBuilder]: At program point L809(line 809) the Hoare annotation is: (or (and (<= ~pumpRunning~0 0) (<= 0 ~pumpRunning~0)) (not (<= |old(~pumpRunning~0)| 0)) (not (<= 0 |old(~pumpRunning~0)|))) [2022-12-14 14:28:24,081 INFO L895 garLoopResultBuilder]: At program point L202-1(lines 194 218) the Hoare annotation is: (let ((.cse0 (not (<= |old(~pumpRunning~0)| 0))) (.cse1 (not (<= 0 |old(~pumpRunning~0)|)))) (and (or (and (<= ~pumpRunning~0 0) (<= 0 ~pumpRunning~0)) .cse0 .cse1) (or (= |timeShift___utac_acc__Specification1_spec__1_~tmp~0#1| 0) .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1))) [2022-12-14 14:28:24,081 INFO L895 garLoopResultBuilder]: At program point L809-1(lines 790 814) the Hoare annotation is: (or (and (<= ~pumpRunning~0 0) (<= 0 ~pumpRunning~0)) (not (<= |old(~pumpRunning~0)| 0)) (not (<= 0 |old(~pumpRunning~0)|))) [2022-12-14 14:28:24,082 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 758 781) the Hoare annotation is: (or (and (<= ~pumpRunning~0 0) (<= 0 ~pumpRunning~0)) (not (<= |old(~pumpRunning~0)| 0)) (not (<= 0 |old(~pumpRunning~0)|))) [2022-12-14 14:28:24,082 INFO L899 garLoopResultBuilder]: For program point L769-1(lines 769 775) no Hoare annotation was computed. [2022-12-14 14:28:24,082 INFO L899 garLoopResultBuilder]: For program point L798(lines 798 806) no Hoare annotation was computed. [2022-12-14 14:28:24,082 INFO L895 garLoopResultBuilder]: At program point L92(line 92) the Hoare annotation is: (or (not (<= |old(~pumpRunning~0)| 0)) (not (<= 0 |old(~pumpRunning~0)|))) [2022-12-14 14:28:24,082 INFO L895 garLoopResultBuilder]: At program point L794(lines 794 811) the Hoare annotation is: (or (and (<= ~pumpRunning~0 0) (<= 0 ~pumpRunning~0)) (not (<= |old(~pumpRunning~0)| 0)) (not (<= 0 |old(~pumpRunning~0)|))) [2022-12-14 14:28:24,082 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 758 781) no Hoare annotation was computed. [2022-12-14 14:28:24,082 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 92) no Hoare annotation was computed. [2022-12-14 14:28:24,082 INFO L895 garLoopResultBuilder]: At program point L200(line 200) the Hoare annotation is: (or (and (<= ~pumpRunning~0 0) (<= 0 ~pumpRunning~0)) (not (<= |old(~pumpRunning~0)| 0)) (not (<= 0 |old(~pumpRunning~0)|))) [2022-12-14 14:28:24,082 INFO L899 garLoopResultBuilder]: For program point L200-1(line 200) no Hoare annotation was computed. [2022-12-14 14:28:24,082 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 222 251) no Hoare annotation was computed. [2022-12-14 14:28:24,082 INFO L902 garLoopResultBuilder]: At program point L247(lines 222 251) the Hoare annotation is: true [2022-12-14 14:28:24,082 INFO L899 garLoopResultBuilder]: For program point L243(line 243) no Hoare annotation was computed. [2022-12-14 14:28:24,083 INFO L899 garLoopResultBuilder]: For program point L236(lines 236 240) no Hoare annotation was computed. [2022-12-14 14:28:24,083 INFO L902 garLoopResultBuilder]: At program point L236-1(lines 236 240) the Hoare annotation is: true [2022-12-14 14:28:24,083 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 222 251) the Hoare annotation is: true [2022-12-14 14:28:24,083 INFO L902 garLoopResultBuilder]: At program point L232-2(lines 232 246) the Hoare annotation is: true [2022-12-14 14:28:24,083 INFO L902 garLoopResultBuilder]: At program point L228(line 228) the Hoare annotation is: true [2022-12-14 14:28:24,083 INFO L899 garLoopResultBuilder]: For program point L228-1(line 228) no Hoare annotation was computed. [2022-12-14 14:28:24,083 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 142 150) the Hoare annotation is: true [2022-12-14 14:28:24,083 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 142 150) no Hoare annotation was computed. [2022-12-14 14:28:24,083 INFO L899 garLoopResultBuilder]: For program point L928(lines 928 934) no Hoare annotation was computed. [2022-12-14 14:28:24,083 INFO L895 garLoopResultBuilder]: At program point L928-1(lines 928 934) the Hoare annotation is: (and (<= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (<= 0 ~pumpRunning~0)) [2022-12-14 14:28:24,083 INFO L899 garLoopResultBuilder]: For program point L697(lines 696 743) no Hoare annotation was computed. [2022-12-14 14:28:24,083 INFO L899 garLoopResultBuilder]: For program point L726(lines 726 739) no Hoare annotation was computed. [2022-12-14 14:28:24,083 INFO L895 garLoopResultBuilder]: At program point L305(lines 305 312) the Hoare annotation is: (and (<= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (<= 0 ~pumpRunning~0)) [2022-12-14 14:28:24,084 INFO L902 garLoopResultBuilder]: At program point L305-2(lines 305 312) the Hoare annotation is: true [2022-12-14 14:28:24,084 INFO L895 garLoopResultBuilder]: At program point L718(line 718) the Hoare annotation is: (and (<= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (<= 0 ~pumpRunning~0)) [2022-12-14 14:28:24,084 INFO L902 garLoopResultBuilder]: At program point L747(lines 686 751) the Hoare annotation is: true [2022-12-14 14:28:24,084 INFO L899 garLoopResultBuilder]: For program point L706(lines 706 712) no Hoare annotation was computed. [2022-12-14 14:28:24,084 INFO L899 garLoopResultBuilder]: For program point L706-1(lines 706 712) no Hoare annotation was computed. [2022-12-14 14:28:24,084 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 14:28:24,084 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2022-12-14 14:28:24,084 INFO L895 garLoopResultBuilder]: At program point L744(lines 695 745) the Hoare annotation is: false [2022-12-14 14:28:24,084 INFO L895 garLoopResultBuilder]: At program point L930(line 930) the Hoare annotation is: false [2022-12-14 14:28:24,084 INFO L899 garLoopResultBuilder]: For program point L732(lines 732 738) no Hoare annotation was computed. [2022-12-14 14:28:24,084 INFO L895 garLoopResultBuilder]: At program point L732-2(lines 726 739) the Hoare annotation is: (and (<= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (<= 0 ~pumpRunning~0)) [2022-12-14 14:28:24,084 INFO L899 garLoopResultBuilder]: For program point L716(lines 716 722) no Hoare annotation was computed. [2022-12-14 14:28:24,084 INFO L899 garLoopResultBuilder]: For program point L716-1(lines 716 722) no Hoare annotation was computed. [2022-12-14 14:28:24,084 INFO L895 garLoopResultBuilder]: At program point L741(lines 696 743) the Hoare annotation is: (and (<= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (<= 0 ~pumpRunning~0)) [2022-12-14 14:28:24,085 INFO L895 garLoopResultBuilder]: At program point L708(line 708) the Hoare annotation is: (and (<= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (<= 0 ~pumpRunning~0)) [2022-12-14 14:28:24,085 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 118 129) no Hoare annotation was computed. [2022-12-14 14:28:24,085 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 118 129) the Hoare annotation is: true [2022-12-14 14:28:24,087 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-12-14 14:28:24,089 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 14:28:24,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 02:28:24 BoogieIcfgContainer [2022-12-14 14:28:24,100 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 14:28:24,100 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 14:28:24,100 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 14:28:24,100 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 14:28:24,101 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:28:22" (3/4) ... [2022-12-14 14:28:24,103 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 14:28:24,107 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-12-14 14:28:24,107 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-12-14 14:28:24,107 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-12-14 14:28:24,107 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-12-14 14:28:24,107 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-12-14 14:28:24,107 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-12-14 14:28:24,107 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-12-14 14:28:24,111 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2022-12-14 14:28:24,111 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-12-14 14:28:24,111 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-14 14:28:24,111 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 14:28:24,112 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 14:28:24,129 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning <= 0 && 0 <= pumpRunning) || !(\old(pumpRunning) <= 0)) || !(0 <= \old(pumpRunning)) [2022-12-14 14:28:24,130 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning <= 0 && 0 <= pumpRunning) || !(\old(pumpRunning) <= 0)) || !(0 <= \old(pumpRunning)) [2022-12-14 14:28:24,130 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning <= 0 && 0 <= pumpRunning) || !(\old(pumpRunning) <= 0)) || !(0 <= \old(pumpRunning)) [2022-12-14 14:28:24,130 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning <= 0 && 0 <= pumpRunning) || !(\old(pumpRunning) <= 0)) || !(0 <= \old(pumpRunning))) && (((tmp == 0 || !(\old(pumpRunning) <= 0)) || !(methaneLevelCritical == 0)) || !(0 <= \old(pumpRunning))) [2022-12-14 14:28:24,130 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning <= 0 && 0 <= pumpRunning) || !(\old(pumpRunning) <= 0)) || !(0 <= \old(pumpRunning))) && (((tmp == 0 || !(\old(pumpRunning) <= 0)) || !(methaneLevelCritical == 0)) || !(0 <= \old(pumpRunning))) [2022-12-14 14:28:24,130 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) <= 0) || !(0 <= \old(pumpRunning)) [2022-12-14 14:28:24,147 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633e4433-d5d0-4209-8d5e-5e026a83de68/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 14:28:24,147 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 14:28:24,148 INFO L158 Benchmark]: Toolchain (without parser) took 2245.72ms. Allocated memory was 115.3MB in the beginning and 159.4MB in the end (delta: 44.0MB). Free memory was 84.8MB in the beginning and 104.9MB in the end (delta: -20.0MB). Peak memory consumption was 25.4MB. Max. memory is 16.1GB. [2022-12-14 14:28:24,148 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 115.3MB. Free memory is still 56.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:28:24,148 INFO L158 Benchmark]: CACSL2BoogieTranslator took 341.69ms. Allocated memory is still 115.3MB. Free memory was 84.5MB in the beginning and 66.3MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 14:28:24,148 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.25ms. Allocated memory is still 115.3MB. Free memory was 66.3MB in the beginning and 64.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 14:28:24,149 INFO L158 Benchmark]: Boogie Preprocessor took 16.81ms. Allocated memory is still 115.3MB. Free memory was 64.2MB in the beginning and 62.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 14:28:24,149 INFO L158 Benchmark]: RCFGBuilder took 410.26ms. Allocated memory was 115.3MB in the beginning and 159.4MB in the end (delta: 44.0MB). Free memory was 62.7MB in the beginning and 124.7MB in the end (delta: -62.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 14:28:24,149 INFO L158 Benchmark]: TraceAbstraction took 1394.38ms. Allocated memory is still 159.4MB. Free memory was 124.1MB in the beginning and 109.0MB in the end (delta: 15.0MB). Peak memory consumption was 60.3MB. Max. memory is 16.1GB. [2022-12-14 14:28:24,150 INFO L158 Benchmark]: Witness Printer took 46.92ms. Allocated memory is still 159.4MB. Free memory was 109.0MB in the beginning and 104.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 14:28:24,151 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 115.3MB. Free memory is still 56.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 341.69ms. Allocated memory is still 115.3MB. Free memory was 84.5MB in the beginning and 66.3MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.25ms. Allocated memory is still 115.3MB. Free memory was 66.3MB in the beginning and 64.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.81ms. Allocated memory is still 115.3MB. Free memory was 64.2MB in the beginning and 62.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 410.26ms. Allocated memory was 115.3MB in the beginning and 159.4MB in the end (delta: 44.0MB). Free memory was 62.7MB in the beginning and 124.7MB in the end (delta: -62.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1394.38ms. Allocated memory is still 159.4MB. Free memory was 124.1MB in the beginning and 109.0MB in the end (delta: 15.0MB). Peak memory consumption was 60.3MB. Max. memory is 16.1GB. * Witness Printer took 46.92ms. Allocated memory is still 159.4MB. Free memory was 109.0MB in the beginning and 104.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 92]: 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, 56 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 118 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 112 mSDsluCounter, 490 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 259 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 174 IncrementalHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 231 mSDtfsCounter, 174 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=150occurred in iteration=4, InterpolantAutomatonStates: 20, 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, 5 MinimizatonAttempts, 11 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 31 LocationsWithAnnotation, 253 PreInvPairs, 290 NumberOfFragments, 251 HoareAnnotationTreeSize, 253 FomulaSimplifications, 48 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 31 FomulaSimplificationsInter, 1176 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 102 NumberOfCodeBlocks, 102 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 97 ConstructedInterpolants, 0 QuantifiedInterpolants, 283 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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: 194]: Loop Invariant Derived loop invariant: (((pumpRunning <= 0 && 0 <= pumpRunning) || !(\old(pumpRunning) <= 0)) || !(0 <= \old(pumpRunning))) && (((tmp == 0 || !(\old(pumpRunning) <= 0)) || !(methaneLevelCritical == 0)) || !(0 <= \old(pumpRunning))) - InvariantResult [Line: 695]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 928]: Loop Invariant Derived loop invariant: (pumpRunning <= 0 && splverifierCounter == 0) && 0 <= pumpRunning - InvariantResult [Line: 696]: Loop Invariant Derived loop invariant: (pumpRunning <= 0 && splverifierCounter == 0) && 0 <= pumpRunning - InvariantResult [Line: 790]: Loop Invariant Derived loop invariant: ((pumpRunning <= 0 && 0 <= pumpRunning) || !(\old(pumpRunning) <= 0)) || !(0 <= \old(pumpRunning)) - InvariantResult [Line: 202]: Loop Invariant Derived loop invariant: (((pumpRunning <= 0 && 0 <= pumpRunning) || !(\old(pumpRunning) <= 0)) || !(0 <= \old(pumpRunning))) && (((tmp == 0 || !(\old(pumpRunning) <= 0)) || !(methaneLevelCritical == 0)) || !(0 <= \old(pumpRunning))) - InvariantResult [Line: 686]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 305]: Loop Invariant Derived loop invariant: ((pumpRunning <= 0 && methaneLevelCritical == 0) && 1 == systemActive) && 0 <= pumpRunning - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 794]: Loop Invariant Derived loop invariant: ((pumpRunning <= 0 && 0 <= pumpRunning) || !(\old(pumpRunning) <= 0)) || !(0 <= \old(pumpRunning)) - InvariantResult [Line: 92]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) <= 0) || !(0 <= \old(pumpRunning)) - InvariantResult [Line: 232]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 305]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 758]: Loop Invariant Derived loop invariant: ((pumpRunning <= 0 && 0 <= pumpRunning) || !(\old(pumpRunning) <= 0)) || !(0 <= \old(pumpRunning)) - InvariantResult [Line: 222]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-12-14 14:28:24,170 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633e4433-d5d0-4209-8d5e-5e026a83de68/bin/utaipan-gh47qXpMRh/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