./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product63.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b 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_e6b47523-dc2b-4a44-bb33-1816a0fd424c/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6b47523-dc2b-4a44-bb33-1816a0fd424c/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6b47523-dc2b-4a44-bb33-1816a0fd424c/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6b47523-dc2b-4a44-bb33-1816a0fd424c/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product63.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6b47523-dc2b-4a44-bb33-1816a0fd424c/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6b47523-dc2b-4a44-bb33-1816a0fd424c/bin/utaipan-I9t0OCRTmS --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 fd0b8ceecda33bdad48c402c2c8ba6fe539641c6d50bf604e9c60e70c71a562b --- 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-8393723 [2022-11-19 07:05:05,505 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:05:05,507 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:05:05,540 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:05:05,543 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:05:05,546 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:05:05,548 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:05:05,552 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:05:05,554 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:05:05,559 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:05:05,561 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:05:05,562 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:05:05,563 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:05:05,566 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:05:05,567 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:05:05,568 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:05:05,571 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:05:05,572 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:05:05,574 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:05:05,579 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:05:05,581 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:05:05,582 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:05:05,585 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:05:05,586 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:05:05,592 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:05:05,596 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:05:05,597 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:05:05,599 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:05:05,599 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:05:05,600 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:05:05,601 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:05:05,602 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:05:05,604 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:05:05,605 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:05:05,606 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:05:05,607 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:05:05,607 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:05:05,607 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:05:05,608 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:05:05,608 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:05:05,609 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:05:05,610 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6b47523-dc2b-4a44-bb33-1816a0fd424c/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 07:05:05,651 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:05:05,651 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:05:05,652 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:05:05,652 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:05:05,653 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:05:05,654 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:05:05,654 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:05:05,654 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:05:05,654 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:05:05,654 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:05:05,654 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:05:05,655 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:05:05,655 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:05:05,655 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:05:05,655 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:05:05,655 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:05:05,655 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:05:05,656 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:05:05,656 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:05:05,658 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:05:05,658 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:05:05,658 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:05:05,658 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:05:05,660 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:05:05,660 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:05:05,660 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:05:05,661 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:05:05,661 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:05:05,661 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:05:05,661 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:05:05,661 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:05:05,662 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:05:05,662 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:05:05,662 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:05:05,662 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:05:05,663 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:05:05,663 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:05:05,663 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:05:05,663 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:05:05,663 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:05:05,663 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:05:05,664 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_e6b47523-dc2b-4a44-bb33-1816a0fd424c/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6b47523-dc2b-4a44-bb33-1816a0fd424c/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd0b8ceecda33bdad48c402c2c8ba6fe539641c6d50bf604e9c60e70c71a562b [2022-11-19 07:05:05,935 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:05:05,961 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:05:05,965 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:05:05,966 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:05:05,967 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:05:05,968 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6b47523-dc2b-4a44-bb33-1816a0fd424c/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/product-lines/minepump_spec1_product63.cil.c [2022-11-19 07:05:06,035 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6b47523-dc2b-4a44-bb33-1816a0fd424c/bin/utaipan-I9t0OCRTmS/data/8c34c7cee/d9d468ce6faa422fa5bc1e6402216d32/FLAGb1628a280 [2022-11-19 07:05:06,619 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:05:06,619 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6b47523-dc2b-4a44-bb33-1816a0fd424c/sv-benchmarks/c/product-lines/minepump_spec1_product63.cil.c [2022-11-19 07:05:06,646 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6b47523-dc2b-4a44-bb33-1816a0fd424c/bin/utaipan-I9t0OCRTmS/data/8c34c7cee/d9d468ce6faa422fa5bc1e6402216d32/FLAGb1628a280 [2022-11-19 07:05:06,906 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6b47523-dc2b-4a44-bb33-1816a0fd424c/bin/utaipan-I9t0OCRTmS/data/8c34c7cee/d9d468ce6faa422fa5bc1e6402216d32 [2022-11-19 07:05:06,908 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:05:06,910 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:05:06,918 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:05:06,919 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:05:06,922 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:05:06,923 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:05:06" (1/1) ... [2022-11-19 07:05:06,925 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f692147 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:05:06, skipping insertion in model container [2022-11-19 07:05:06,926 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:05:06" (1/1) ... [2022-11-19 07:05:06,934 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:05:06,969 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:05:07,193 WARN L234 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_e6b47523-dc2b-4a44-bb33-1816a0fd424c/sv-benchmarks/c/product-lines/minepump_spec1_product63.cil.c[6160,6173] [2022-11-19 07:05:07,281 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:05:07,298 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:05:07,350 WARN L234 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_e6b47523-dc2b-4a44-bb33-1816a0fd424c/sv-benchmarks/c/product-lines/minepump_spec1_product63.cil.c[6160,6173] [2022-11-19 07:05:07,410 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:05:07,436 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:05:07,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:05:07 WrapperNode [2022-11-19 07:05:07,437 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:05:07,438 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:05:07,438 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:05:07,438 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:05:07,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:05:07" (1/1) ... [2022-11-19 07:05:07,458 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:05:07" (1/1) ... [2022-11-19 07:05:07,483 INFO L138 Inliner]: procedures = 58, calls = 106, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 217 [2022-11-19 07:05:07,483 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:05:07,484 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:05:07,484 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:05:07,484 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:05:07,497 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:05:07" (1/1) ... [2022-11-19 07:05:07,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:05:07" (1/1) ... [2022-11-19 07:05:07,499 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:05:07" (1/1) ... [2022-11-19 07:05:07,501 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:05:07" (1/1) ... [2022-11-19 07:05:07,506 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:05:07" (1/1) ... [2022-11-19 07:05:07,511 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:05:07" (1/1) ... [2022-11-19 07:05:07,513 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:05:07" (1/1) ... [2022-11-19 07:05:07,530 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:05:07" (1/1) ... [2022-11-19 07:05:07,532 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:05:07,533 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:05:07,533 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:05:07,534 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:05:07,537 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:05:07" (1/1) ... [2022-11-19 07:05:07,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:05:07,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6b47523-dc2b-4a44-bb33-1816a0fd424c/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:05:07,565 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6b47523-dc2b-4a44-bb33-1816a0fd424c/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:05:07,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6b47523-dc2b-4a44-bb33-1816a0fd424c/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:05:07,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:05:07,607 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-19 07:05:07,607 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-19 07:05:07,607 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-19 07:05:07,608 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-19 07:05:07,608 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-19 07:05:07,608 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-19 07:05:07,608 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-19 07:05:07,608 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-19 07:05:07,608 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-11-19 07:05:07,608 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-11-19 07:05:07,609 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-19 07:05:07,609 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-19 07:05:07,609 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2022-11-19 07:05:07,609 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2022-11-19 07:05:07,609 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2022-11-19 07:05:07,609 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2022-11-19 07:05:07,609 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-11-19 07:05:07,609 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-11-19 07:05:07,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:05:07,610 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-19 07:05:07,610 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-19 07:05:07,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:05:07,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:05:07,735 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:05:07,739 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:05:08,043 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:05:08,168 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:05:08,168 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-19 07:05:08,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:05:08 BoogieIcfgContainer [2022-11-19 07:05:08,171 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:05:08,173 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:05:08,173 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:05:08,180 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:05:08,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:05:06" (1/3) ... [2022-11-19 07:05:08,181 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@479b84b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:05:08, skipping insertion in model container [2022-11-19 07:05:08,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:05:07" (2/3) ... [2022-11-19 07:05:08,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@479b84b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:05:08, skipping insertion in model container [2022-11-19 07:05:08,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:05:08" (3/3) ... [2022-11-19 07:05:08,200 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product63.cil.c [2022-11-19 07:05:08,223 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:05:08,223 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:05:08,322 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:05:08,334 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;@75525baa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:05:08,334 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:05:08,339 INFO L276 IsEmpty]: Start isEmpty. Operand has 79 states, 48 states have (on average 1.4166666666666667) internal successors, (68), 59 states have internal predecessors, (68), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (19), 14 states have call predecessors, (19), 19 states have call successors, (19) [2022-11-19 07:05:08,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-19 07:05:08,350 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:05:08,350 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:05:08,352 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:05:08,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:05:08,360 INFO L85 PathProgramCache]: Analyzing trace with hash -831846055, now seen corresponding path program 1 times [2022-11-19 07:05:08,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:05:08,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115157911] [2022-11-19 07:05:08,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:05:08,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:05:08,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:05:08,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:05:08,618 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:05:08,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115157911] [2022-11-19 07:05:08,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115157911] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:05:08,620 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:05:08,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:05:08,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789950052] [2022-11-19 07:05:08,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:05:08,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 07:05:08,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:05:08,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 07:05:08,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 07:05:08,667 INFO L87 Difference]: Start difference. First operand has 79 states, 48 states have (on average 1.4166666666666667) internal successors, (68), 59 states have internal predecessors, (68), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (19), 14 states have call predecessors, (19), 19 states have call successors, (19) 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) [2022-11-19 07:05:08,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:05:08,790 INFO L93 Difference]: Finished difference Result 156 states and 213 transitions. [2022-11-19 07:05:08,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 07:05:08,793 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 [2022-11-19 07:05:08,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:05:08,807 INFO L225 Difference]: With dead ends: 156 [2022-11-19 07:05:08,807 INFO L226 Difference]: Without dead ends: 74 [2022-11-19 07:05:08,811 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 [2022-11-19 07:05:08,816 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:05:08,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 85 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:05:08,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-11-19 07:05:08,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2022-11-19 07:05:08,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 45 states have (on average 1.3333333333333333) internal successors, (60), 55 states have internal predecessors, (60), 19 states have call successors, (19), 10 states have call predecessors, (19), 9 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) [2022-11-19 07:05:08,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 97 transitions. [2022-11-19 07:05:08,883 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 97 transitions. Word has length 16 [2022-11-19 07:05:08,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:05:08,884 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 97 transitions. [2022-11-19 07:05:08,885 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) [2022-11-19 07:05:08,885 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 97 transitions. [2022-11-19 07:05:08,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-19 07:05:08,889 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:05:08,889 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:05:08,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:05:08,890 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:05:08,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:05:08,891 INFO L85 PathProgramCache]: Analyzing trace with hash -335547087, now seen corresponding path program 1 times [2022-11-19 07:05:08,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:05:08,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838924175] [2022-11-19 07:05:08,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:05:08,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:05:08,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:05:09,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:05:09,001 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:05:09,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838924175] [2022-11-19 07:05:09,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838924175] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:05:09,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:05:09,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:05:09,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249545301] [2022-11-19 07:05:09,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:05:09,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:05:09,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:05:09,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:05:09,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:05:09,005 INFO L87 Difference]: Start difference. First operand 74 states and 97 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) [2022-11-19 07:05:09,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:05:09,053 INFO L93 Difference]: Finished difference Result 120 states and 156 transitions. [2022-11-19 07:05:09,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:05:09,054 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 [2022-11-19 07:05:09,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:05:09,056 INFO L225 Difference]: With dead ends: 120 [2022-11-19 07:05:09,056 INFO L226 Difference]: Without dead ends: 66 [2022-11-19 07:05:09,057 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 [2022-11-19 07:05:09,058 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 14 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:05:09,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 125 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:05:09,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-11-19 07:05:09,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2022-11-19 07:05:09,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 40 states have (on average 1.35) internal successors, (54), 50 states have internal predecessors, (54), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-19 07:05:09,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 86 transitions. [2022-11-19 07:05:09,075 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 86 transitions. Word has length 17 [2022-11-19 07:05:09,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:05:09,075 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 86 transitions. [2022-11-19 07:05:09,076 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) [2022-11-19 07:05:09,077 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 86 transitions. [2022-11-19 07:05:09,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-19 07:05:09,079 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:05:09,079 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] [2022-11-19 07:05:09,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:05:09,079 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:05:09,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:05:09,080 INFO L85 PathProgramCache]: Analyzing trace with hash -963223982, now seen corresponding path program 1 times [2022-11-19 07:05:09,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:05:09,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256384245] [2022-11-19 07:05:09,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:05:09,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:05:09,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:05:09,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:05:09,220 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:05:09,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256384245] [2022-11-19 07:05:09,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256384245] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:05:09,220 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:05:09,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:05:09,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146497451] [2022-11-19 07:05:09,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:05:09,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:05:09,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:05:09,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:05:09,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:05:09,223 INFO L87 Difference]: Start difference. First operand 66 states and 86 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) [2022-11-19 07:05:09,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:05:09,343 INFO L93 Difference]: Finished difference Result 194 states and 255 transitions. [2022-11-19 07:05:09,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:05:09,344 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 [2022-11-19 07:05:09,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:05:09,351 INFO L225 Difference]: With dead ends: 194 [2022-11-19 07:05:09,351 INFO L226 Difference]: Without dead ends: 130 [2022-11-19 07:05:09,352 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 [2022-11-19 07:05:09,353 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 73 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:05:09,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 164 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:05:09,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2022-11-19 07:05:09,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 127. [2022-11-19 07:05:09,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 76 states have (on average 1.355263157894737) internal successors, (103), 95 states have internal predecessors, (103), 32 states have call successors, (32), 18 states have call predecessors, (32), 18 states have return successors, (32), 21 states have call predecessors, (32), 32 states have call successors, (32) [2022-11-19 07:05:09,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 167 transitions. [2022-11-19 07:05:09,373 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 167 transitions. Word has length 20 [2022-11-19 07:05:09,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:05:09,374 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 167 transitions. [2022-11-19 07:05:09,374 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) [2022-11-19 07:05:09,374 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 167 transitions. [2022-11-19 07:05:09,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-19 07:05:09,376 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:05:09,376 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] [2022-11-19 07:05:09,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 07:05:09,376 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:05:09,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:05:09,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1867410973, now seen corresponding path program 1 times [2022-11-19 07:05:09,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:05:09,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732545621] [2022-11-19 07:05:09,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:05:09,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:05:09,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:05:09,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:05:09,553 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:05:09,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732545621] [2022-11-19 07:05:09,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732545621] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:05:09,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:05:09,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 07:05:09,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991496349] [2022-11-19 07:05:09,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:05:09,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:05:09,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:05:09,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:05:09,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:05:09,556 INFO L87 Difference]: Start difference. First operand 127 states and 167 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) [2022-11-19 07:05:09,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:05:09,749 INFO L93 Difference]: Finished difference Result 375 states and 498 transitions. [2022-11-19 07:05:09,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-19 07:05:09,750 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 [2022-11-19 07:05:09,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:05:09,763 INFO L225 Difference]: With dead ends: 375 [2022-11-19 07:05:09,764 INFO L226 Difference]: Without dead ends: 250 [2022-11-19 07:05:09,767 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 [2022-11-19 07:05:09,770 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 64 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:05:09,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 373 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:05:09,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2022-11-19 07:05:09,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 242. [2022-11-19 07:05:09,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 145 states have (on average 1.3448275862068966) internal successors, (195), 180 states have internal predecessors, (195), 62 states have call successors, (62), 34 states have call predecessors, (62), 34 states have return successors, (62), 40 states have call predecessors, (62), 62 states have call successors, (62) [2022-11-19 07:05:09,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 319 transitions. [2022-11-19 07:05:09,854 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 319 transitions. Word has length 23 [2022-11-19 07:05:09,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:05:09,855 INFO L495 AbstractCegarLoop]: Abstraction has 242 states and 319 transitions. [2022-11-19 07:05:09,855 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) [2022-11-19 07:05:09,855 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 319 transitions. [2022-11-19 07:05:09,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-19 07:05:09,867 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:05:09,867 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] [2022-11-19 07:05:09,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 07:05:09,867 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:05:09,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:05:09,868 INFO L85 PathProgramCache]: Analyzing trace with hash 2051363639, now seen corresponding path program 1 times [2022-11-19 07:05:09,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:05:09,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823073603] [2022-11-19 07:05:09,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:05:09,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:05:09,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:05:10,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:05:10,014 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:05:10,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823073603] [2022-11-19 07:05:10,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823073603] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:05:10,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:05:10,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:05:10,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961980919] [2022-11-19 07:05:10,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:05:10,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:05:10,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:05:10,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:05:10,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:05:10,018 INFO L87 Difference]: Start difference. First operand 242 states and 319 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) [2022-11-19 07:05:10,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:05:10,144 INFO L93 Difference]: Finished difference Result 654 states and 882 transitions. [2022-11-19 07:05:10,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:05:10,145 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 [2022-11-19 07:05:10,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:05:10,149 INFO L225 Difference]: With dead ends: 654 [2022-11-19 07:05:10,149 INFO L226 Difference]: Without dead ends: 414 [2022-11-19 07:05:10,150 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 [2022-11-19 07:05:10,152 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 49 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:05:10,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 211 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:05:10,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2022-11-19 07:05:10,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 404. [2022-11-19 07:05:10,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 259 states have (on average 1.2702702702702702) internal successors, (329), 288 states have internal predecessors, (329), 80 states have call successors, (80), 64 states have call predecessors, (80), 64 states have return successors, (104), 70 states have call predecessors, (104), 80 states have call successors, (104) [2022-11-19 07:05:10,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 513 transitions. [2022-11-19 07:05:10,217 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 513 transitions. Word has length 26 [2022-11-19 07:05:10,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:05:10,218 INFO L495 AbstractCegarLoop]: Abstraction has 404 states and 513 transitions. [2022-11-19 07:05:10,218 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) [2022-11-19 07:05:10,218 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 513 transitions. [2022-11-19 07:05:10,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-19 07:05:10,221 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:05:10,222 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:05:10,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 07:05:10,222 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:05:10,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:05:10,223 INFO L85 PathProgramCache]: Analyzing trace with hash -288960498, now seen corresponding path program 1 times [2022-11-19 07:05:10,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:05:10,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059343226] [2022-11-19 07:05:10,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:05:10,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:05:10,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:05:10,490 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 07:05:10,490 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:05:10,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059343226] [2022-11-19 07:05:10,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059343226] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:05:10,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:05:10,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 07:05:10,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832197645] [2022-11-19 07:05:10,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:05:10,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:05:10,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:05:10,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:05:10,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:05:10,493 INFO L87 Difference]: Start difference. First operand 404 states and 513 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 5 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2022-11-19 07:05:10,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:05:10,743 INFO L93 Difference]: Finished difference Result 1142 states and 1451 transitions. [2022-11-19 07:05:10,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:05:10,744 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 5 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 44 [2022-11-19 07:05:10,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:05:10,749 INFO L225 Difference]: With dead ends: 1142 [2022-11-19 07:05:10,749 INFO L226 Difference]: Without dead ends: 740 [2022-11-19 07:05:10,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:05:10,753 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 126 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:05:10,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 303 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:05:10,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2022-11-19 07:05:10,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 664. [2022-11-19 07:05:10,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 664 states, 443 states have (on average 1.252821670428894) internal successors, (555), 474 states have internal predecessors, (555), 110 states have call successors, (110), 98 states have call predecessors, (110), 110 states have return successors, (146), 110 states have call predecessors, (146), 110 states have call successors, (146) [2022-11-19 07:05:10,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 811 transitions. [2022-11-19 07:05:10,837 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 811 transitions. Word has length 44 [2022-11-19 07:05:10,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:05:10,838 INFO L495 AbstractCegarLoop]: Abstraction has 664 states and 811 transitions. [2022-11-19 07:05:10,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 5 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2022-11-19 07:05:10,838 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 811 transitions. [2022-11-19 07:05:10,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-19 07:05:10,840 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:05:10,841 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:05:10,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 07:05:10,841 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:05:10,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:05:10,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1730431963, now seen corresponding path program 1 times [2022-11-19 07:05:10,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:05:10,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187024316] [2022-11-19 07:05:10,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:05:10,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:05:10,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:05:11,310 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:05:11,310 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:05:11,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187024316] [2022-11-19 07:05:11,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187024316] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:05:11,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1750694408] [2022-11-19 07:05:11,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:05:11,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:05:11,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6b47523-dc2b-4a44-bb33-1816a0fd424c/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:05:11,318 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6b47523-dc2b-4a44-bb33-1816a0fd424c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:05:11,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6b47523-dc2b-4a44-bb33-1816a0fd424c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 07:05:11,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:05:11,450 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 33 conjunts are in the unsatisfiable core [2022-11-19 07:05:11,455 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:05:11,976 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:05:11,976 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:05:12,796 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:05:12,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1750694408] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:05:12,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1525441314] [2022-11-19 07:05:12,820 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2022-11-19 07:05:12,820 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:05:12,824 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:05:12,829 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:05:12,830 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:05:14,261 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 114 for LOIs [2022-11-19 07:05:14,275 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 136 for LOIs [2022-11-19 07:05:14,871 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 131 for LOIs [2022-11-19 07:05:15,311 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 131 for LOIs [2022-11-19 07:05:15,911 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 132 for LOIs [2022-11-19 07:05:16,231 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 44 for LOIs [2022-11-19 07:05:16,238 INFO L197 IcfgInterpreter]: Interpreting procedure changeMethaneLevel with input of size 112 for LOIs [2022-11-19 07:05:16,249 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:05:32,042 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6762#(and (not (= |timeShift___utac_acc__Specification1_spec__1_~tmp___0~3#1| 0)) (= |timeShift_isPumpRunning_#res#1| |timeShift___utac_acc__Specification1_spec__1_~tmp___0~3#1|) (<= ~methaneLevelCritical~0 1) (<= ~pumpRunning~0 1) (not (= |timeShift___utac_acc__Specification1_spec__1_~tmp~11#1| 0)) (= |timeShift___utac_acc__Specification1_spec__1_~tmp~11#1| ~methaneLevelCritical~0) (= ~head~0.offset 0) (= ~pumpRunning~0 |timeShift_isPumpRunning_~retValue_acc~1#1|) (<= 2 ~waterLevel~0) (= 1 ~systemActive~0) (= |old(~pumpRunning~0)| 0) (= |timeShift_isPumpRunning_#res#1| |timeShift_isPumpRunning_~retValue_acc~1#1|) (<= 2 |old(~waterLevel~0)|) (<= 0 ~methaneLevelCritical~0) (<= 0 ~pumpRunning~0) (= ~head~0.base 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-11-19 07:05:32,042 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 07:05:32,042 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:05:32,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12, 12] total 31 [2022-11-19 07:05:32,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501053563] [2022-11-19 07:05:32,043 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 07:05:32,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-11-19 07:05:32,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:05:32,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-11-19 07:05:32,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=441, Invalid=3341, Unknown=0, NotChecked=0, Total=3782 [2022-11-19 07:05:32,047 INFO L87 Difference]: Start difference. First operand 664 states and 811 transitions. Second operand has 31 states, 22 states have (on average 3.227272727272727) internal successors, (71), 22 states have internal predecessors, (71), 8 states have call successors, (18), 6 states have call predecessors, (18), 13 states have return successors, (19), 15 states have call predecessors, (19), 7 states have call successors, (19) [2022-11-19 07:05:40,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:05:40,878 INFO L93 Difference]: Finished difference Result 2754 states and 3749 transitions. [2022-11-19 07:05:40,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2022-11-19 07:05:40,879 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 22 states have (on average 3.227272727272727) internal successors, (71), 22 states have internal predecessors, (71), 8 states have call successors, (18), 6 states have call predecessors, (18), 13 states have return successors, (19), 15 states have call predecessors, (19), 7 states have call successors, (19) Word has length 47 [2022-11-19 07:05:40,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:05:40,891 INFO L225 Difference]: With dead ends: 2754 [2022-11-19 07:05:40,891 INFO L226 Difference]: Without dead ends: 1951 [2022-11-19 07:05:40,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 111 SyntacticMatches, 7 SemanticMatches, 162 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10261 ImplicationChecksByTransitivity, 21.1s TimeCoverageRelationStatistics Valid=2711, Invalid=24021, Unknown=0, NotChecked=0, Total=26732 [2022-11-19 07:05:40,909 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 1535 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 5387 mSolverCounterSat, 1015 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1540 SdHoareTripleChecker+Valid, 1462 SdHoareTripleChecker+Invalid, 6402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1015 IncrementalHoareTripleChecker+Valid, 5387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-19 07:05:40,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1540 Valid, 1462 Invalid, 6402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1015 Valid, 5387 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-11-19 07:05:40,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1951 states. [2022-11-19 07:05:41,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1951 to 1283. [2022-11-19 07:05:41,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1283 states, 864 states have (on average 1.2141203703703705) internal successors, (1049), 915 states have internal predecessors, (1049), 203 states have call successors, (203), 172 states have call predecessors, (203), 215 states have return successors, (281), 225 states have call predecessors, (281), 203 states have call successors, (281) [2022-11-19 07:05:41,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1283 states to 1283 states and 1533 transitions. [2022-11-19 07:05:41,085 INFO L78 Accepts]: Start accepts. Automaton has 1283 states and 1533 transitions. Word has length 47 [2022-11-19 07:05:41,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:05:41,086 INFO L495 AbstractCegarLoop]: Abstraction has 1283 states and 1533 transitions. [2022-11-19 07:05:41,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 22 states have (on average 3.227272727272727) internal successors, (71), 22 states have internal predecessors, (71), 8 states have call successors, (18), 6 states have call predecessors, (18), 13 states have return successors, (19), 15 states have call predecessors, (19), 7 states have call successors, (19) [2022-11-19 07:05:41,086 INFO L276 IsEmpty]: Start isEmpty. Operand 1283 states and 1533 transitions. [2022-11-19 07:05:41,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-11-19 07:05:41,094 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:05:41,094 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:05:41,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6b47523-dc2b-4a44-bb33-1816a0fd424c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 07:05:41,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6b47523-dc2b-4a44-bb33-1816a0fd424c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:05:41,301 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:05:41,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:05:41,301 INFO L85 PathProgramCache]: Analyzing trace with hash 85530319, now seen corresponding path program 1 times [2022-11-19 07:05:41,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:05:41,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513393517] [2022-11-19 07:05:41,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:05:41,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:05:41,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:05:41,548 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-11-19 07:05:41,548 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:05:41,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513393517] [2022-11-19 07:05:41,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513393517] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:05:41,549 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:05:41,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-19 07:05:41,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886411214] [2022-11-19 07:05:41,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:05:41,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-19 07:05:41,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:05:41,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-19 07:05:41,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-19 07:05:41,551 INFO L87 Difference]: Start difference. First operand 1283 states and 1533 transitions. Second operand has 10 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (14), 5 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-19 07:05:41,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:05:41,979 INFO L93 Difference]: Finished difference Result 2590 states and 3171 transitions. [2022-11-19 07:05:41,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-19 07:05:41,980 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (14), 5 states have call predecessors, (14), 2 states have call successors, (14) Word has length 90 [2022-11-19 07:05:41,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:05:41,990 INFO L225 Difference]: With dead ends: 2590 [2022-11-19 07:05:41,990 INFO L226 Difference]: Without dead ends: 1572 [2022-11-19 07:05:41,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380 [2022-11-19 07:05:41,994 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 85 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:05:41,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 526 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:05:41,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1572 states. [2022-11-19 07:05:42,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1572 to 1532. [2022-11-19 07:05:42,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1532 states, 1033 states have (on average 1.2042594385285577) internal successors, (1244), 1092 states have internal predecessors, (1244), 242 states have call successors, (242), 210 states have call predecessors, (242), 256 states have return successors, (329), 263 states have call predecessors, (329), 242 states have call successors, (329) [2022-11-19 07:05:42,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1532 states to 1532 states and 1815 transitions. [2022-11-19 07:05:42,179 INFO L78 Accepts]: Start accepts. Automaton has 1532 states and 1815 transitions. Word has length 90 [2022-11-19 07:05:42,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:05:42,180 INFO L495 AbstractCegarLoop]: Abstraction has 1532 states and 1815 transitions. [2022-11-19 07:05:42,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (14), 5 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-19 07:05:42,180 INFO L276 IsEmpty]: Start isEmpty. Operand 1532 states and 1815 transitions. [2022-11-19 07:05:42,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-19 07:05:42,184 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:05:42,184 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:05:42,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-19 07:05:42,184 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:05:42,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:05:42,185 INFO L85 PathProgramCache]: Analyzing trace with hash -666994552, now seen corresponding path program 1 times [2022-11-19 07:05:42,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:05:42,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668362494] [2022-11-19 07:05:42,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:05:42,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:05:42,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:05:42,251 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-19 07:05:42,251 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:05:42,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668362494] [2022-11-19 07:05:42,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668362494] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:05:42,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:05:42,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:05:42,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979264966] [2022-11-19 07:05:42,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:05:42,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:05:42,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:05:42,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:05:42,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:05:42,254 INFO L87 Difference]: Start difference. First operand 1532 states and 1815 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2022-11-19 07:05:42,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:05:42,419 INFO L93 Difference]: Finished difference Result 1726 states and 2060 transitions. [2022-11-19 07:05:42,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:05:42,420 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 89 [2022-11-19 07:05:42,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:05:42,422 INFO L225 Difference]: With dead ends: 1726 [2022-11-19 07:05:42,422 INFO L226 Difference]: Without dead ends: 0 [2022-11-19 07:05:42,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:05:42,428 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 95 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:05:42,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 142 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:05:42,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-19 07:05:42,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-19 07:05:42,430 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) [2022-11-19 07:05:42,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-19 07:05:42,430 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 89 [2022-11-19 07:05:42,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:05:42,431 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-19 07:05:42,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2022-11-19 07:05:42,431 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-19 07:05:42,431 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-19 07:05:42,433 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 07:05:42,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-19 07:05:42,436 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-19 07:05:49,452 INFO L895 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 199 206) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (and (or .cse0 (= 0 ~systemActive~0) (= ~waterLevel~0 1)) (or .cse0 (not (= 1 ~systemActive~0))))) [2022-11-19 07:05:49,452 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 199 206) no Hoare annotation was computed. [2022-11-19 07:05:49,452 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 89 95) no Hoare annotation was computed. [2022-11-19 07:05:49,453 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 89 95) the Hoare annotation is: true [2022-11-19 07:05:49,453 INFO L895 garLoopResultBuilder]: At program point L137(line 137) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (= ~methaneLevelCritical~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) .cse0))) [2022-11-19 07:05:49,453 INFO L895 garLoopResultBuilder]: At program point L133(line 133) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (= ~methaneLevelCritical~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) .cse0))) [2022-11-19 07:05:49,453 INFO L899 garLoopResultBuilder]: For program point L131(lines 131 139) no Hoare annotation was computed. [2022-11-19 07:05:49,453 INFO L895 garLoopResultBuilder]: At program point L127(lines 127 144) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (= ~methaneLevelCritical~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0))) [2022-11-19 07:05:49,454 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 123 147) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (= ~methaneLevelCritical~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0))) [2022-11-19 07:05:49,454 INFO L895 garLoopResultBuilder]: At program point L142(line 142) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1)) (or (not (= |old(~pumpRunning~0)| 0)) .cse1 .cse0))) [2022-11-19 07:05:49,454 INFO L899 garLoopResultBuilder]: For program point L142-1(lines 123 147) no Hoare annotation was computed. [2022-11-19 07:05:49,454 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 123 147) no Hoare annotation was computed. [2022-11-19 07:05:49,455 INFO L895 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 914 925) the Hoare annotation is: (let ((.cse0 (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0))) (and (or (not (= ~pumpRunning~0 0)) .cse0 (not (= 0 ~systemActive~0))) (or (not (= 1 ~systemActive~0)) .cse0))) [2022-11-19 07:05:49,455 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 914 925) no Hoare annotation was computed. [2022-11-19 07:05:49,455 INFO L902 garLoopResultBuilder]: At program point L769(line 769) the Hoare annotation is: true [2022-11-19 07:05:49,455 INFO L899 garLoopResultBuilder]: For program point L769-1(line 769) no Hoare annotation was computed. [2022-11-19 07:05:49,455 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 763 792) no Hoare annotation was computed. [2022-11-19 07:05:49,455 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 763 792) the Hoare annotation is: true [2022-11-19 07:05:49,455 INFO L902 garLoopResultBuilder]: At program point L788(lines 763 792) the Hoare annotation is: true [2022-11-19 07:05:49,456 INFO L899 garLoopResultBuilder]: For program point L784(line 784) no Hoare annotation was computed. [2022-11-19 07:05:49,456 INFO L899 garLoopResultBuilder]: For program point L777(lines 777 781) no Hoare annotation was computed. [2022-11-19 07:05:49,456 INFO L902 garLoopResultBuilder]: At program point L777-1(lines 777 781) the Hoare annotation is: true [2022-11-19 07:05:49,456 INFO L902 garLoopResultBuilder]: At program point L773-2(lines 773 787) the Hoare annotation is: true [2022-11-19 07:05:49,456 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 926 934) the Hoare annotation is: true [2022-11-19 07:05:49,456 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 926 934) no Hoare annotation was computed. [2022-11-19 07:05:49,457 INFO L895 garLoopResultBuilder]: At program point L159(line 159) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift_processEnvironment_~tmp~2#1| ~methaneLevelCritical~0))) (or .cse1 .cse0) (or .cse0 (not (= ~methaneLevelCritical~0 0))) (or .cse1 (not (= 0 ~systemActive~0))))) [2022-11-19 07:05:49,457 INFO L895 garLoopResultBuilder]: At program point L155(line 155) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0) (or .cse1 .cse0) (or .cse1 (not (= 0 ~systemActive~0))))) [2022-11-19 07:05:49,457 INFO L899 garLoopResultBuilder]: For program point L155-1(line 155) no Hoare annotation was computed. [2022-11-19 07:05:49,457 INFO L895 garLoopResultBuilder]: At program point L168(line 168) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0))) (or (not (= |old(~waterLevel~0)| 1)) .cse0 (= ~waterLevel~0 1)) (or (not (= |old(~pumpRunning~0)| 0)) (not (= 0 ~systemActive~0))))) [2022-11-19 07:05:49,458 INFO L895 garLoopResultBuilder]: At program point L168-1(lines 149 173) the Hoare annotation is: (let ((.cse4 (= ~waterLevel~0 1)) (.cse1 (= |timeShift_processEnvironment_~tmp~2#1| ~methaneLevelCritical~0)) (.cse2 (not (= 1 ~systemActive~0))) (.cse6 (not (= |old(~pumpRunning~0)| 0)))) (and (let ((.cse0 (= ~pumpRunning~0 0)) (.cse3 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse5 (= ~methaneLevelCritical~0 0))) (or (and .cse0 .cse1) .cse2 (and .cse3 .cse0) (and (not .cse4) .cse5 (= ~pumpRunning~0 1)) (and .cse3 .cse1 .cse5))) (or .cse6 (not (= |old(~waterLevel~0)| 1)) .cse2 .cse4) (or .cse1 .cse2 (not (= |old(~pumpRunning~0)| 1))) (or .cse6 (not (= 0 ~systemActive~0))))) [2022-11-19 07:05:49,458 INFO L895 garLoopResultBuilder]: At program point L391(line 391) the Hoare annotation is: (and (not (= 1 ~systemActive~0)) (or (not (= |old(~pumpRunning~0)| 0)) (not (= 0 ~systemActive~0)))) [2022-11-19 07:05:49,458 INFO L899 garLoopResultBuilder]: For program point L69-1(lines 68 87) no Hoare annotation was computed. [2022-11-19 07:05:49,459 INFO L895 garLoopResultBuilder]: At program point L867(line 867) the Hoare annotation is: (let ((.cse2 (not (= 0 ~systemActive~0))) (.cse1 (= ~pumpRunning~0 0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= |old(~waterLevel~0)| 1))) (.cse4 (= ~waterLevel~0 1)) (.cse5 (= |timeShift_processEnvironment_~tmp~2#1| ~methaneLevelCritical~0)) (.cse6 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse3 .cse4 .cse2) (let ((.cse7 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse8 (= ~methaneLevelCritical~0 0))) (or (and .cse1 .cse5) .cse6 (and .cse7 .cse1) (and (not .cse4) .cse8 (= ~pumpRunning~0 1)) (and .cse7 .cse5 .cse8))) (or .cse0 .cse3 .cse6 .cse4) (or .cse5 .cse6 (not (= |old(~pumpRunning~0)| 1))))) [2022-11-19 07:05:49,459 INFO L899 garLoopResultBuilder]: For program point L867-1(line 867) no Hoare annotation was computed. [2022-11-19 07:05:49,459 INFO L899 garLoopResultBuilder]: For program point L157(lines 157 165) no Hoare annotation was computed. [2022-11-19 07:05:49,459 INFO L899 garLoopResultBuilder]: For program point L153(lines 153 170) no Hoare annotation was computed. [2022-11-19 07:05:49,459 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 65 88) the Hoare annotation is: (let ((.cse1 (not (= 0 ~systemActive~0))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= |old(~waterLevel~0)| 1))) (.cse4 (not (= 1 ~systemActive~0))) (.cse3 (= ~waterLevel~0 1))) (and (or .cse0 (= ~pumpRunning~0 0) .cse1) (or .cse0 .cse2 .cse3 .cse1) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse4) (or .cse0 .cse2 .cse4 .cse3))) [2022-11-19 07:05:49,459 INFO L899 garLoopResultBuilder]: For program point L76-1(lines 76 82) no Hoare annotation was computed. [2022-11-19 07:05:49,460 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 65 88) no Hoare annotation was computed. [2022-11-19 07:05:49,460 INFO L899 garLoopResultBuilder]: For program point L873(lines 873 879) no Hoare annotation was computed. [2022-11-19 07:05:49,460 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 391) no Hoare annotation was computed. [2022-11-19 07:05:49,460 INFO L895 garLoopResultBuilder]: At program point L869(lines 869 882) the Hoare annotation is: (let ((.cse0 (= |timeShift___utac_acc__Specification1_spec__1_~tmp~11#1| 0)) (.cse10 (= ~methaneLevelCritical~0 0))) (let ((.cse2 (not .cse10)) (.cse4 (= ~pumpRunning~0 0)) (.cse11 (not .cse0)) (.cse5 (not (= 0 ~systemActive~0))) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (not (= |old(~waterLevel~0)| 1))) (.cse7 (= ~waterLevel~0 1)) (.cse8 (= |timeShift_processEnvironment_~tmp~2#1| ~methaneLevelCritical~0)) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse5) (or .cse3 .cse0 .cse2 .cse5) (or .cse3 .cse6 .cse7 .cse5) (let ((.cse9 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (or (and .cse4 .cse8) .cse1 (and .cse9 .cse4) (and (not .cse7) .cse10 (= ~pumpRunning~0 1)) (and .cse9 .cse8 .cse10))) (or .cse3 .cse11 .cse10 .cse1) (or .cse3 .cse11 .cse10 .cse5) (or .cse3 .cse6 .cse1 .cse7) (or .cse8 .cse1 (not (= |old(~pumpRunning~0)| 1)))))) [2022-11-19 07:05:49,461 INFO L895 garLoopResultBuilder]: At program point L869-1(lines 861 885) the Hoare annotation is: (let ((.cse13 (= |timeShift___utac_acc__Specification1_spec__1_~tmp~11#1| 0)) (.cse1 (= ~methaneLevelCritical~0 0))) (let ((.cse12 (not .cse1)) (.cse8 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse9 (not (= |old(~waterLevel~0)| 1))) (.cse10 (= ~waterLevel~0 1)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (< 0 (+ |timeShift___utac_acc__Specification1_spec__1_~tmp___0~3#1| 1))) (.cse6 (= ~pumpRunning~0 0)) (.cse4 (not .cse13)) (.cse5 (<= |timeShift___utac_acc__Specification1_spec__1_~tmp___0~3#1| 0)) (.cse11 (not (= 0 ~systemActive~0))) (.cse7 (= |timeShift_processEnvironment_~tmp~2#1| ~methaneLevelCritical~0)) (.cse2 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 (and .cse3 .cse4 .cse5)) (or (and .cse6 .cse7) .cse1 .cse2 (and .cse8 .cse6)) (or .cse0 .cse9 .cse10 .cse11) (or .cse0 .cse12 (and .cse6 .cse13) .cse11) (or (and .cse8 .cse7 .cse13) .cse2 .cse12 (and (not .cse10) .cse13 (= ~pumpRunning~0 1)) (and .cse8 .cse6 .cse13) (and .cse6 .cse7 .cse13)) (or .cse0 .cse9 .cse2 .cse10) (or .cse0 (and .cse3 .cse6 .cse4 .cse5) .cse1 .cse11) (or .cse7 .cse2 (not (= |old(~pumpRunning~0)| 1)))))) [2022-11-19 07:05:49,461 INFO L895 garLoopResultBuilder]: At program point L163(line 163) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift_processEnvironment_~tmp~2#1| ~methaneLevelCritical~0) (= ~methaneLevelCritical~0 0))) (or .cse1 .cse0) (or .cse1 (not (= 0 ~systemActive~0))))) [2022-11-19 07:05:49,461 INFO L895 garLoopResultBuilder]: At program point L378(lines 329 379) the Hoare annotation is: false [2022-11-19 07:05:49,461 INFO L899 garLoopResultBuilder]: For program point L366(lines 366 372) no Hoare annotation was computed. [2022-11-19 07:05:49,462 INFO L895 garLoopResultBuilder]: At program point L366-2(lines 360 373) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= 1 ~systemActive~0) .cse0) (and (= ~pumpRunning~0 0) .cse0 (= 0 ~systemActive~0)))) [2022-11-19 07:05:49,462 INFO L899 garLoopResultBuilder]: For program point L350(lines 350 356) no Hoare annotation was computed. [2022-11-19 07:05:49,462 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-19 07:05:49,462 INFO L899 garLoopResultBuilder]: For program point L350-1(lines 350 356) no Hoare annotation was computed. [2022-11-19 07:05:49,462 INFO L895 garLoopResultBuilder]: At program point L375(lines 330 377) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse2 (= 0 ~systemActive~0)) (and (= ~methaneLevelCritical~0 0) .cse1 .cse2))) [2022-11-19 07:05:49,462 INFO L895 garLoopResultBuilder]: At program point L342(line 342) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse2 (= 0 ~systemActive~0)) (and (= ~methaneLevelCritical~0 0) .cse1 .cse2))) [2022-11-19 07:05:49,463 INFO L899 garLoopResultBuilder]: For program point L305(lines 305 311) no Hoare annotation was computed. [2022-11-19 07:05:49,463 INFO L895 garLoopResultBuilder]: At program point L305-1(lines 305 311) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-19 07:05:49,463 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-19 07:05:49,463 INFO L895 garLoopResultBuilder]: At program point L847(lines 847 854) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-19 07:05:49,463 INFO L902 garLoopResultBuilder]: At program point L847-2(lines 847 854) the Hoare annotation is: true [2022-11-19 07:05:49,463 INFO L899 garLoopResultBuilder]: For program point L331(lines 330 377) no Hoare annotation was computed. [2022-11-19 07:05:49,464 INFO L899 garLoopResultBuilder]: For program point L360(lines 360 373) no Hoare annotation was computed. [2022-11-19 07:05:49,464 INFO L895 garLoopResultBuilder]: At program point L352(line 352) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= 1 ~systemActive~0) .cse0) (and (= ~pumpRunning~0 0) .cse0 (= 0 ~systemActive~0)))) [2022-11-19 07:05:49,464 INFO L902 garLoopResultBuilder]: At program point L381(lines 320 385) the Hoare annotation is: true [2022-11-19 07:05:49,464 INFO L899 garLoopResultBuilder]: For program point L340(lines 340 346) no Hoare annotation was computed. [2022-11-19 07:05:49,464 INFO L899 garLoopResultBuilder]: For program point L340-1(lines 340 346) no Hoare annotation was computed. [2022-11-19 07:05:49,465 INFO L895 garLoopResultBuilder]: At program point L307(line 307) the Hoare annotation is: (let ((.cse6 (= |isMethaneLevelCritical_#res| 0)) (.cse8 (not (= ~pumpRunning~0 0))) (.cse5 (= ~methaneLevelCritical~0 0))) (let ((.cse1 (or .cse8 .cse5 (not (= |isMethaneAlarm_#t~ret8| 0)))) (.cse2 (or .cse8 .cse5 (not (= |isMethaneAlarm_#res| 0)))) (.cse4 (or .cse8 .cse5 (not .cse6))) (.cse0 (not (= ~waterLevel~0 1))) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse7 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (or (and (<= ~pumpRunning~0 0) (< 0 (+ ~pumpRunning~0 1))) (not .cse5) .cse6) .cse7) (and .cse1 .cse2 (= 1 ~systemActive~0) .cse3 .cse4) (and .cse0 .cse3 .cse7 (= ~pumpRunning~0 1))))) [2022-11-19 07:05:49,465 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 97 121) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (= ~methaneLevelCritical~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0))) [2022-11-19 07:05:49,465 INFO L895 garLoopResultBuilder]: At program point L116(line 116) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (= ~methaneLevelCritical~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) .cse0))) [2022-11-19 07:05:49,465 INFO L899 garLoopResultBuilder]: For program point L116-1(lines 97 121) no Hoare annotation was computed. [2022-11-19 07:05:49,465 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 97 121) no Hoare annotation was computed. [2022-11-19 07:05:49,465 INFO L895 garLoopResultBuilder]: At program point L187(line 187) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1)) (or (not (= ~waterLevel~0 1)) .cse2 .cse0) (or .cse2 .cse1 .cse0))) [2022-11-19 07:05:49,466 INFO L895 garLoopResultBuilder]: At program point L187-1(line 187) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (= ~pumpRunning~0 0))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1)) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (and (not (= ~waterLevel~0 1)) .cse1 (= |processEnvironment__wrappee__highWaterSensor_activatePump_#t~ret7#1| ~methaneLevelCritical~0))))) [2022-11-19 07:05:49,466 INFO L895 garLoopResultBuilder]: At program point L111(line 111) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1)) (or (not (= ~waterLevel~0 1)) .cse2 .cse0 (= |processEnvironment__wrappee__highWaterSensor_~tmp~0#1| 0)) (or .cse2 .cse1 .cse0))) [2022-11-19 07:05:49,466 INFO L899 garLoopResultBuilder]: For program point L105(lines 105 113) no Hoare annotation was computed. [2022-11-19 07:05:49,466 INFO L895 garLoopResultBuilder]: At program point L101(lines 101 118) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (= ~methaneLevelCritical~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0))) [2022-11-19 07:05:49,466 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 902 913) no Hoare annotation was computed. [2022-11-19 07:05:49,467 INFO L902 garLoopResultBuilder]: At program point waterRiseENTRY(lines 902 913) the Hoare annotation is: true [2022-11-19 07:05:49,467 INFO L902 garLoopResultBuilder]: At program point isMethaneAlarmENTRY(lines 207 217) the Hoare annotation is: true [2022-11-19 07:05:49,467 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 207 217) no Hoare annotation was computed. [2022-11-19 07:05:49,467 INFO L902 garLoopResultBuilder]: At program point L212(line 212) the Hoare annotation is: true [2022-11-19 07:05:49,467 INFO L899 garLoopResultBuilder]: For program point L212-1(line 212) no Hoare annotation was computed. [2022-11-19 07:05:49,470 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:05:49,472 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 07:05:49,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:05:49 BoogieIcfgContainer [2022-11-19 07:05:49,497 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 07:05:49,511 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 07:05:49,511 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 07:05:49,525 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 07:05:49,525 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:05:08" (3/4) ... [2022-11-19 07:05:49,527 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 07:05:49,531 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-11-19 07:05:49,531 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-19 07:05:49,531 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-19 07:05:49,531 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-19 07:05:49,531 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-11-19 07:05:49,531 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-19 07:05:49,532 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2022-11-19 07:05:49,532 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-19 07:05:49,532 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2022-11-19 07:05:49,532 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2022-11-19 07:05:49,539 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 50 nodes and edges [2022-11-19 07:05:49,540 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-19 07:05:49,540 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-19 07:05:49,541 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 07:05:49,541 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 07:05:49,569 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(0 == systemActive)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1) || !(0 == systemActive))) && (pumpRunning == \old(pumpRunning) || !(1 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || waterLevel == 1) [2022-11-19 07:05:49,572 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((pumpRunning == 0 && tmp == methaneLevelCritical) || !(1 == systemActive)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || ((!(waterLevel == 1) && methaneLevelCritical == 0) && pumpRunning == 1)) || ((pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical) && methaneLevelCritical == 0)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || waterLevel == 1)) && ((tmp == methaneLevelCritical || !(1 == systemActive)) || !(\old(pumpRunning) == 1))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) [2022-11-19 07:05:49,572 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) [2022-11-19 07:05:49,573 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((tmp == 0 || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(0 == systemActive))) && (((!(\old(pumpRunning) == 0) || tmp == 0) || !(methaneLevelCritical == 0)) || !(0 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1) || !(0 == systemActive))) && (((((pumpRunning == 0 && tmp == methaneLevelCritical) || !(1 == systemActive)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || ((!(waterLevel == 1) && methaneLevelCritical == 0) && pumpRunning == 1)) || ((pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical) && methaneLevelCritical == 0))) && (((!(\old(pumpRunning) == 0) || !(tmp == 0)) || methaneLevelCritical == 0) || !(1 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(tmp == 0)) || methaneLevelCritical == 0) || !(0 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || waterLevel == 1)) && ((tmp == methaneLevelCritical || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) [2022-11-19 07:05:49,574 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) [2022-11-19 07:05:49,574 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((!(\old(pumpRunning) == 0) || methaneLevelCritical == 0) || !(1 == systemActive)) || ((0 < tmp___0 + 1 && !(tmp == 0)) && tmp___0 <= 0)) && ((((pumpRunning == 0 && tmp == methaneLevelCritical) || methaneLevelCritical == 0) || !(1 == systemActive)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1) || !(0 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || (pumpRunning == 0 && tmp == 0)) || !(0 == systemActive))) && (((((((pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical) && tmp == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || ((!(waterLevel == 1) && tmp == 0) && pumpRunning == 1)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && tmp == 0)) || ((pumpRunning == 0 && tmp == methaneLevelCritical) && tmp == 0))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || waterLevel == 1)) && (((!(\old(pumpRunning) == 0) || (((0 < tmp___0 + 1 && pumpRunning == 0) && !(tmp == 0)) && tmp___0 <= 0)) || methaneLevelCritical == 0) || !(0 == systemActive))) && ((tmp == methaneLevelCritical || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) [2022-11-19 07:05:49,576 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(1 == systemActive) || !(methaneLevelCritical == 0)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((!(waterLevel == 1) && pumpRunning == 0) && aux-isMethaneAlarm()-aux == methaneLevelCritical)) [2022-11-19 07:05:49,576 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(1 == systemActive) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) [2022-11-19 07:05:49,634 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6b47523-dc2b-4a44-bb33-1816a0fd424c/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 07:05:49,636 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 07:05:49,636 INFO L158 Benchmark]: Toolchain (without parser) took 42726.62ms. Allocated memory was 117.4MB in the beginning and 346.0MB in the end (delta: 228.6MB). Free memory was 79.4MB in the beginning and 267.9MB in the end (delta: -188.4MB). Peak memory consumption was 38.7MB. Max. memory is 16.1GB. [2022-11-19 07:05:49,637 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 117.4MB. Free memory is still 96.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:05:49,637 INFO L158 Benchmark]: CACSL2BoogieTranslator took 518.83ms. Allocated memory is still 117.4MB. Free memory was 79.3MB in the beginning and 84.8MB in the end (delta: -5.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-19 07:05:49,638 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.59ms. Allocated memory is still 117.4MB. Free memory was 84.8MB in the beginning and 82.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:05:49,638 INFO L158 Benchmark]: Boogie Preprocessor took 48.44ms. Allocated memory is still 117.4MB. Free memory was 82.3MB in the beginning and 80.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:05:49,638 INFO L158 Benchmark]: RCFGBuilder took 637.70ms. Allocated memory is still 117.4MB. Free memory was 80.6MB in the beginning and 55.0MB in the end (delta: 25.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-19 07:05:49,639 INFO L158 Benchmark]: TraceAbstraction took 41324.06ms. Allocated memory was 117.4MB in the beginning and 346.0MB in the end (delta: 228.6MB). Free memory was 54.5MB in the beginning and 274.1MB in the end (delta: -219.7MB). Peak memory consumption was 181.4MB. Max. memory is 16.1GB. [2022-11-19 07:05:49,640 INFO L158 Benchmark]: Witness Printer took 124.94ms. Allocated memory is still 346.0MB. Free memory was 274.1MB in the beginning and 267.9MB in the end (delta: 6.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-19 07:05:49,642 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 117.4MB. Free memory is still 96.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 518.83ms. Allocated memory is still 117.4MB. Free memory was 79.3MB in the beginning and 84.8MB in the end (delta: -5.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.59ms. Allocated memory is still 117.4MB. Free memory was 84.8MB in the beginning and 82.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.44ms. Allocated memory is still 117.4MB. Free memory was 82.3MB in the beginning and 80.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 637.70ms. Allocated memory is still 117.4MB. Free memory was 80.6MB in the beginning and 55.0MB in the end (delta: 25.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 41324.06ms. Allocated memory was 117.4MB in the beginning and 346.0MB in the end (delta: 228.6MB). Free memory was 54.5MB in the beginning and 274.1MB in the end (delta: -219.7MB). Peak memory consumption was 181.4MB. Max. memory is 16.1GB. * Witness Printer took 124.94ms. Allocated memory is still 346.0MB. Free memory was 274.1MB in the beginning and 267.9MB in the end (delta: 6.3MB). 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: 391]: 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 11 procedures, 79 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 41.2s, OverallIterations: 9, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 10.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 7.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2061 SdHoareTripleChecker+Valid, 4.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2041 mSDsluCounter, 3391 SdHoareTripleChecker+Invalid, 3.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2591 mSDsCounter, 1066 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6299 IncrementalHoareTripleChecker+Invalid, 7365 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1066 mSolverCounterUnsat, 800 mSDtfsCounter, 6299 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 337 GetRequests, 131 SyntacticMatches, 7 SemanticMatches, 199 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10307 ImplicationChecksByTransitivity, 21.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1532occurred in iteration=8, InterpolantAutomatonStates: 159, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 9 MinimizatonAttempts, 805 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 44 LocationsWithAnnotation, 2330 PreInvPairs, 2596 NumberOfFragments, 1339 HoareAnnotationTreeSize, 2330 FomulaSimplifications, 7897 FormulaSimplificationTreeSizeReduction, 1.2s HoareSimplificationTime, 44 FomulaSimplificationsInter, 33147 FormulaSimplificationTreeSizeReductionInter, 5.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 419 NumberOfCodeBlocks, 419 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 455 ConstructedInterpolants, 0 QuantifiedInterpolants, 1322 SizeOfPredicates, 11 NumberOfNonLiveVariables, 229 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 11 InterpolantComputations, 8 PerfectInterpolantSequences, 103/107 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: 149]: Loop Invariant Derived loop invariant: (((((((pumpRunning == 0 && tmp == methaneLevelCritical) || !(1 == systemActive)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || ((!(waterLevel == 1) && methaneLevelCritical == 0) && pumpRunning == 1)) || ((pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical) && methaneLevelCritical == 0)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || waterLevel == 1)) && ((tmp == methaneLevelCritical || !(1 == systemActive)) || !(\old(pumpRunning) == 1))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) - InvariantResult [Line: 869]: Loop Invariant Derived loop invariant: (((((((((tmp == 0 || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(0 == systemActive))) && (((!(\old(pumpRunning) == 0) || tmp == 0) || !(methaneLevelCritical == 0)) || !(0 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1) || !(0 == systemActive))) && (((((pumpRunning == 0 && tmp == methaneLevelCritical) || !(1 == systemActive)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || ((!(waterLevel == 1) && methaneLevelCritical == 0) && pumpRunning == 1)) || ((pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical) && methaneLevelCritical == 0))) && (((!(\old(pumpRunning) == 0) || !(tmp == 0)) || methaneLevelCritical == 0) || !(1 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(tmp == 0)) || methaneLevelCritical == 0) || !(0 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || waterLevel == 1)) && ((tmp == methaneLevelCritical || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 847]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(0 == systemActive)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1) || !(0 == systemActive))) && (pumpRunning == \old(pumpRunning) || !(1 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || waterLevel == 1) - InvariantResult [Line: 305]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 - InvariantResult [Line: 391]: Loop Invariant Derived loop invariant: !(1 == systemActive) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) - InvariantResult [Line: 101]: Loop Invariant Derived loop invariant: ((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: ((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) - InvariantResult [Line: 861]: Loop Invariant Derived loop invariant: (((((((((!(\old(pumpRunning) == 0) || methaneLevelCritical == 0) || !(1 == systemActive)) || ((0 < tmp___0 + 1 && !(tmp == 0)) && tmp___0 <= 0)) && ((((pumpRunning == 0 && tmp == methaneLevelCritical) || methaneLevelCritical == 0) || !(1 == systemActive)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1) || !(0 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || (pumpRunning == 0 && tmp == 0)) || !(0 == systemActive))) && (((((((pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical) && tmp == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || ((!(waterLevel == 1) && tmp == 0) && pumpRunning == 1)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && tmp == 0)) || ((pumpRunning == 0 && tmp == methaneLevelCritical) && tmp == 0))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || waterLevel == 1)) && (((!(\old(pumpRunning) == 0) || (((0 < tmp___0 + 1 && pumpRunning == 0) && !(tmp == 0)) && tmp___0 <= 0)) || methaneLevelCritical == 0) || !(0 == systemActive))) && ((tmp == methaneLevelCritical || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) - InvariantResult [Line: 187]: Loop Invariant Derived loop invariant: ((!(1 == systemActive) || !(methaneLevelCritical == 0)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((!(waterLevel == 1) && pumpRunning == 0) && aux-isMethaneAlarm()-aux == methaneLevelCritical)) - InvariantResult [Line: 847]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 329]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 773]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 330]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && 1 == systemActive) && splverifierCounter == 0) || ((pumpRunning == 0 && splverifierCounter == 0) && 0 == systemActive)) || ((methaneLevelCritical == 0 && 1 == systemActive) && splverifierCounter == 0) - InvariantResult [Line: 763]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 320]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-19 07:05:49,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6b47523-dc2b-4a44-bb33-1816a0fd424c/bin/utaipan-I9t0OCRTmS/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