./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product25.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ce5edf9-70de-44a8-a4b9-d232fe42e488/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ce5edf9-70de-44a8-a4b9-d232fe42e488/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_7ce5edf9-70de-44a8-a4b9-d232fe42e488/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ce5edf9-70de-44a8-a4b9-d232fe42e488/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product25.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ce5edf9-70de-44a8-a4b9-d232fe42e488/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_7ce5edf9-70de-44a8-a4b9-d232fe42e488/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 586e2c87093d9cb3f870b8341d8eab6b70b165e3f162b5ed0d4d08ed0a9ba515 --- 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 08:08:50,458 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:08:50,462 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:08:50,513 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:08:50,514 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:08:50,519 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:08:50,521 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:08:50,525 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:08:50,528 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:08:50,534 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:08:50,536 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:08:50,538 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:08:50,540 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:08:50,545 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:08:50,546 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:08:50,548 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:08:50,550 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:08:50,551 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:08:50,553 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:08:50,557 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:08:50,563 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:08:50,564 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:08:50,566 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:08:50,568 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:08:50,575 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:08:50,580 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:08:50,580 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:08:50,581 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:08:50,583 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:08:50,585 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:08:50,585 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:08:50,587 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:08:50,589 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:08:50,591 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:08:50,593 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:08:50,594 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:08:50,595 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:08:50,596 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:08:50,596 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:08:50,597 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:08:50,598 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:08:50,600 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ce5edf9-70de-44a8-a4b9-d232fe42e488/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 08:08:50,654 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:08:50,655 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:08:50,655 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:08:50,656 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:08:50,657 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:08:50,657 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:08:50,658 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:08:50,658 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:08:50,658 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:08:50,659 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:08:50,660 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:08:50,661 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:08:50,661 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:08:50,661 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:08:50,662 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:08:50,662 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:08:50,663 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:08:50,663 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:08:50,664 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:08:50,664 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 08:08:50,665 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:08:50,665 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 08:08:50,666 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:08:50,666 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:08:50,666 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:08:50,667 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:08:50,667 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 08:08:50,667 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:08:50,668 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:08:50,668 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:08:50,668 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:08:50,669 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:08:50,669 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:08:50,670 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:08:50,670 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:08:50,671 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:08:50,671 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:08:50,671 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:08:50,672 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:08:50,672 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:08:50,673 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:08:50,673 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_7ce5edf9-70de-44a8-a4b9-d232fe42e488/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ce5edf9-70de-44a8-a4b9-d232fe42e488/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 586e2c87093d9cb3f870b8341d8eab6b70b165e3f162b5ed0d4d08ed0a9ba515 [2022-11-19 08:08:51,056 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:08:51,097 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:08:51,101 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:08:51,103 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:08:51,104 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:08:51,106 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ce5edf9-70de-44a8-a4b9-d232fe42e488/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/product-lines/minepump_spec4_product25.cil.c [2022-11-19 08:08:51,220 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ce5edf9-70de-44a8-a4b9-d232fe42e488/bin/utaipan-I9t0OCRTmS/data/5e4e2e5f2/87ff25de499d44f59adbdbf803e24bbe/FLAG6175536a1 [2022-11-19 08:08:51,912 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:08:51,912 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ce5edf9-70de-44a8-a4b9-d232fe42e488/sv-benchmarks/c/product-lines/minepump_spec4_product25.cil.c [2022-11-19 08:08:51,936 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ce5edf9-70de-44a8-a4b9-d232fe42e488/bin/utaipan-I9t0OCRTmS/data/5e4e2e5f2/87ff25de499d44f59adbdbf803e24bbe/FLAG6175536a1 [2022-11-19 08:08:52,148 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ce5edf9-70de-44a8-a4b9-d232fe42e488/bin/utaipan-I9t0OCRTmS/data/5e4e2e5f2/87ff25de499d44f59adbdbf803e24bbe [2022-11-19 08:08:52,152 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:08:52,155 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:08:52,160 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:08:52,160 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:08:52,165 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:08:52,167 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:08:52" (1/1) ... [2022-11-19 08:08:52,169 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b7b82ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:52, skipping insertion in model container [2022-11-19 08:08:52,169 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:08:52" (1/1) ... [2022-11-19 08:08:52,181 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:08:52,270 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:08:52,607 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_7ce5edf9-70de-44a8-a4b9-d232fe42e488/sv-benchmarks/c/product-lines/minepump_spec4_product25.cil.c[1605,1618] [2022-11-19 08:08:52,809 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:08:52,829 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:08:52,850 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_7ce5edf9-70de-44a8-a4b9-d232fe42e488/sv-benchmarks/c/product-lines/minepump_spec4_product25.cil.c[1605,1618] [2022-11-19 08:08:52,952 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:08:52,975 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:08:52,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:52 WrapperNode [2022-11-19 08:08:52,976 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:08:52,977 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:08:52,977 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:08:52,978 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:08:52,988 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:52" (1/1) ... [2022-11-19 08:08:53,006 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:52" (1/1) ... [2022-11-19 08:08:53,037 INFO L138 Inliner]: procedures = 53, calls = 95, calls flagged for inlining = 23, calls inlined = 17, statements flattened = 163 [2022-11-19 08:08:53,037 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:08:53,038 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:08:53,039 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:08:53,039 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:08:53,051 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:52" (1/1) ... [2022-11-19 08:08:53,052 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:52" (1/1) ... [2022-11-19 08:08:53,054 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:52" (1/1) ... [2022-11-19 08:08:53,055 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:52" (1/1) ... [2022-11-19 08:08:53,061 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:52" (1/1) ... [2022-11-19 08:08:53,068 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:52" (1/1) ... [2022-11-19 08:08:53,070 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:52" (1/1) ... [2022-11-19 08:08:53,071 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:52" (1/1) ... [2022-11-19 08:08:53,074 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:08:53,075 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:08:53,076 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:08:53,076 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:08:53,077 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:52" (1/1) ... [2022-11-19 08:08:53,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:08:53,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ce5edf9-70de-44a8-a4b9-d232fe42e488/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:08:53,122 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ce5edf9-70de-44a8-a4b9-d232fe42e488/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:08:53,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ce5edf9-70de-44a8-a4b9-d232fe42e488/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:08:53,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:08:53,191 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-19 08:08:53,192 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-19 08:08:53,193 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-19 08:08:53,193 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-19 08:08:53,193 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-19 08:08:53,193 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-19 08:08:53,194 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-19 08:08:53,194 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-19 08:08:53,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:08:53,194 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-19 08:08:53,195 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-19 08:08:53,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:08:53,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:08:53,301 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:08:53,304 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:08:53,727 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:08:53,998 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:08:53,998 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-19 08:08:54,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:08:54 BoogieIcfgContainer [2022-11-19 08:08:54,002 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:08:54,006 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:08:54,006 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:08:54,015 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:08:54,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:08:52" (1/3) ... [2022-11-19 08:08:54,017 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@403ede5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:08:54, skipping insertion in model container [2022-11-19 08:08:54,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:52" (2/3) ... [2022-11-19 08:08:54,018 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@403ede5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:08:54, skipping insertion in model container [2022-11-19 08:08:54,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:08:54" (3/3) ... [2022-11-19 08:08:54,020 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product25.cil.c [2022-11-19 08:08:54,056 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:08:54,056 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 08:08:54,143 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:08:54,151 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;@601a43f8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:08:54,152 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 08:08:54,162 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 29 states have (on average 1.4482758620689655) internal successors, (42), 35 states have internal predecessors, (42), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-19 08:08:54,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-19 08:08:54,175 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:08:54,176 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:08:54,177 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:08:54,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:08:54,187 INFO L85 PathProgramCache]: Analyzing trace with hash -721645851, now seen corresponding path program 1 times [2022-11-19 08:08:54,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:08:54,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244282879] [2022-11-19 08:08:54,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:08:54,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:08:54,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:08:54,542 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 08:08:54,543 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:08:54,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244282879] [2022-11-19 08:08:54,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244282879] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:08:54,546 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:08:54,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:08:54,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8239543] [2022-11-19 08:08:54,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:08:54,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 08:08:54,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:08:54,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 08:08:54,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 08:08:54,610 INFO L87 Difference]: Start difference. First operand has 44 states, 29 states have (on average 1.4482758620689655) internal successors, (42), 35 states have internal predecessors, (42), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:08:54,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:08:54,747 INFO L93 Difference]: Finished difference Result 86 states and 117 transitions. [2022-11-19 08:08:54,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 08:08:54,759 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-19 08:08:54,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:08:54,772 INFO L225 Difference]: With dead ends: 86 [2022-11-19 08:08:54,772 INFO L226 Difference]: Without dead ends: 39 [2022-11-19 08:08:54,779 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 08:08:54,784 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:08:54,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:08:54,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-11-19 08:08:54,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-11-19 08:08:54,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 31 states have internal predecessors, (34), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-19 08:08:54,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 49 transitions. [2022-11-19 08:08:54,855 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 49 transitions. Word has length 12 [2022-11-19 08:08:54,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:08:54,856 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 49 transitions. [2022-11-19 08:08:54,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:08:54,857 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 49 transitions. [2022-11-19 08:08:54,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-19 08:08:54,860 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:08:54,861 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:08:54,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:08:54,862 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:08:54,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:08:54,865 INFO L85 PathProgramCache]: Analyzing trace with hash 973603622, now seen corresponding path program 1 times [2022-11-19 08:08:54,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:08:54,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515923502] [2022-11-19 08:08:54,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:08:54,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:08:54,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:08:55,033 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 08:08:55,033 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:08:55,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515923502] [2022-11-19 08:08:55,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515923502] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:08:55,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:08:55,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:08:55,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325544330] [2022-11-19 08:08:55,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:08:55,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:08:55,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:08:55,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:08:55,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:08:55,038 INFO L87 Difference]: Start difference. First operand 39 states and 49 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:08:55,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:08:55,105 INFO L93 Difference]: Finished difference Result 55 states and 69 transitions. [2022-11-19 08:08:55,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:08:55,109 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-19 08:08:55,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:08:55,110 INFO L225 Difference]: With dead ends: 55 [2022-11-19 08:08:55,111 INFO L226 Difference]: Without dead ends: 31 [2022-11-19 08:08:55,112 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 08:08:55,115 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 7 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:08:55,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 43 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:08:55,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-11-19 08:08:55,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-11-19 08:08:55,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 21 states have (on average 1.3333333333333333) internal successors, (28), 26 states have internal predecessors, (28), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-19 08:08:55,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2022-11-19 08:08:55,141 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 13 [2022-11-19 08:08:55,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:08:55,142 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2022-11-19 08:08:55,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:08:55,143 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2022-11-19 08:08:55,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-19 08:08:55,144 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:08:55,144 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:08:55,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 08:08:55,145 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:08:55,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:08:55,145 INFO L85 PathProgramCache]: Analyzing trace with hash 79528374, now seen corresponding path program 1 times [2022-11-19 08:08:55,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:08:55,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661167463] [2022-11-19 08:08:55,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:08:55,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:08:55,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:08:55,289 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 08:08:55,289 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:08:55,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661167463] [2022-11-19 08:08:55,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661167463] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:08:55,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:08:55,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:08:55,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752898176] [2022-11-19 08:08:55,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:08:55,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:08:55,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:08:55,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:08:55,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:08:55,293 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:08:55,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:08:55,334 INFO L93 Difference]: Finished difference Result 60 states and 75 transitions. [2022-11-19 08:08:55,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:08:55,335 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-19 08:08:55,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:08:55,336 INFO L225 Difference]: With dead ends: 60 [2022-11-19 08:08:55,337 INFO L226 Difference]: Without dead ends: 31 [2022-11-19 08:08:55,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:08:55,339 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 27 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:08:55,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 24 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:08:55,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-11-19 08:08:55,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-11-19 08:08:55,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 26 states have internal predecessors, (27), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-19 08:08:55,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 37 transitions. [2022-11-19 08:08:55,352 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 37 transitions. Word has length 15 [2022-11-19 08:08:55,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:08:55,353 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 37 transitions. [2022-11-19 08:08:55,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:08:55,354 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2022-11-19 08:08:55,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-19 08:08:55,355 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:08:55,355 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:08:55,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 08:08:55,355 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:08:55,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:08:55,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1089783292, now seen corresponding path program 1 times [2022-11-19 08:08:55,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:08:55,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900400550] [2022-11-19 08:08:55,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:08:55,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:08:55,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:08:55,565 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 08:08:55,565 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:08:55,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900400550] [2022-11-19 08:08:55,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900400550] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:08:55,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:08:55,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:08:55,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607179503] [2022-11-19 08:08:55,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:08:55,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:08:55,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:08:55,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:08:55,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:08:55,574 INFO L87 Difference]: Start difference. First operand 31 states and 37 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:08:55,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:08:55,636 INFO L93 Difference]: Finished difference Result 58 states and 69 transitions. [2022-11-19 08:08:55,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:08:55,637 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-19 08:08:55,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:08:55,638 INFO L225 Difference]: With dead ends: 58 [2022-11-19 08:08:55,638 INFO L226 Difference]: Without dead ends: 29 [2022-11-19 08:08:55,639 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 08:08:55,641 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 21 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:08:55,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 21 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:08:55,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-11-19 08:08:55,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-11-19 08:08:55,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 20 states have (on average 1.2) internal successors, (24), 23 states have internal predecessors, (24), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-19 08:08:55,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2022-11-19 08:08:55,651 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 18 [2022-11-19 08:08:55,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:08:55,651 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2022-11-19 08:08:55,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:08:55,652 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2022-11-19 08:08:55,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-19 08:08:55,653 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:08:55,653 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 08:08:55,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 08:08:55,654 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:08:55,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:08:55,655 INFO L85 PathProgramCache]: Analyzing trace with hash 343425254, now seen corresponding path program 1 times [2022-11-19 08:08:55,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:08:55,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761739487] [2022-11-19 08:08:55,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:08:55,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:08:55,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:08:55,969 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 08:08:55,970 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:08:55,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761739487] [2022-11-19 08:08:55,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761739487] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:08:55,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:08:55,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 08:08:55,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078418958] [2022-11-19 08:08:55,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:08:55,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 08:08:55,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:08:55,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 08:08:55,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:08:55,975 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 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 08:08:56,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:08:56,128 INFO L93 Difference]: Finished difference Result 81 states and 92 transitions. [2022-11-19 08:08:56,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:08:56,129 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 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 08:08:56,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:08:56,135 INFO L225 Difference]: With dead ends: 81 [2022-11-19 08:08:56,135 INFO L226 Difference]: Without dead ends: 54 [2022-11-19 08:08:56,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:08:56,137 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 44 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:08:56,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 90 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:08:56,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-11-19 08:08:56,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 50. [2022-11-19 08:08:56,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 39 states have internal predecessors, (41), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-19 08:08:56,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 55 transitions. [2022-11-19 08:08:56,175 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 55 transitions. Word has length 20 [2022-11-19 08:08:56,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:08:56,177 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 55 transitions. [2022-11-19 08:08:56,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 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 08:08:56,177 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 55 transitions. [2022-11-19 08:08:56,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-19 08:08:56,180 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:08:56,180 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:08:56,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 08:08:56,181 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:08:56,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:08:56,182 INFO L85 PathProgramCache]: Analyzing trace with hash -518560837, now seen corresponding path program 1 times [2022-11-19 08:08:56,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:08:56,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448964649] [2022-11-19 08:08:56,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:08:56,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:08:56,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:08:56,544 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 08:08:56,545 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:08:56,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448964649] [2022-11-19 08:08:56,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448964649] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:08:56,546 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:08:56,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-19 08:08:56,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549886521] [2022-11-19 08:08:56,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:08:56,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 08:08:56,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:08:56,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 08:08:56,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:08:56,550 INFO L87 Difference]: Start difference. First operand 50 states and 55 transitions. Second operand has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-19 08:08:56,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:08:56,817 INFO L93 Difference]: Finished difference Result 105 states and 118 transitions. [2022-11-19 08:08:56,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-19 08:08:56,818 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 23 [2022-11-19 08:08:56,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:08:56,825 INFO L225 Difference]: With dead ends: 105 [2022-11-19 08:08:56,825 INFO L226 Difference]: Without dead ends: 78 [2022-11-19 08:08:56,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=64, Unknown=0, NotChecked=0, Total=110 [2022-11-19 08:08:56,835 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 91 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:08:56,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 82 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 08:08:56,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-11-19 08:08:56,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 74. [2022-11-19 08:08:56,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 51 states have (on average 1.1568627450980393) internal successors, (59), 57 states have internal predecessors, (59), 11 states have call successors, (11), 11 states have call predecessors, (11), 11 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-19 08:08:56,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 81 transitions. [2022-11-19 08:08:56,872 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 81 transitions. Word has length 23 [2022-11-19 08:08:56,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:08:56,872 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 81 transitions. [2022-11-19 08:08:56,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-19 08:08:56,873 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 81 transitions. [2022-11-19 08:08:56,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-19 08:08:56,875 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:08:56,875 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-19 08:08:56,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 08:08:56,876 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:08:56,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:08:56,877 INFO L85 PathProgramCache]: Analyzing trace with hash -208772205, now seen corresponding path program 1 times [2022-11-19 08:08:56,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:08:56,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614858197] [2022-11-19 08:08:56,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:08:56,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:08:56,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:08:57,825 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 08:08:57,825 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:08:57,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614858197] [2022-11-19 08:08:57,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614858197] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:08:57,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1638102871] [2022-11-19 08:08:57,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:08:57,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:08:57,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ce5edf9-70de-44a8-a4b9-d232fe42e488/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:08:57,834 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ce5edf9-70de-44a8-a4b9-d232fe42e488/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:08:57,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ce5edf9-70de-44a8-a4b9-d232fe42e488/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 08:08:57,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:08:57,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 39 conjunts are in the unsatisfiable core [2022-11-19 08:08:57,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:08:58,716 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 08:08:58,717 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:08:59,596 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 08:08:59,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1638102871] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:08:59,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [416123956] [2022-11-19 08:08:59,622 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2022-11-19 08:08:59,623 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:08:59,628 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:08:59,635 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:08:59,636 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:09:04,167 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 30 for LOIs [2022-11-19 08:09:04,173 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 115 for LOIs [2022-11-19 08:09:04,437 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 110 for LOIs [2022-11-19 08:09:04,449 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:09:11,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [416123956] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:11,713 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 08:09:11,713 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [15, 13, 15] total 52 [2022-11-19 08:09:11,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841659025] [2022-11-19 08:09:11,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:11,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-19 08:09:11,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:09:11,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-19 08:09:11,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=426, Invalid=2226, Unknown=0, NotChecked=0, Total=2652 [2022-11-19 08:09:11,717 INFO L87 Difference]: Start difference. First operand 74 states and 81 transitions. Second operand has 18 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 15 states have internal predecessors, (20), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-19 08:09:18,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:18,906 INFO L93 Difference]: Finished difference Result 161 states and 185 transitions. [2022-11-19 08:09:18,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-19 08:09:18,908 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 15 states have internal predecessors, (20), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 44 [2022-11-19 08:09:18,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:18,912 INFO L225 Difference]: With dead ends: 161 [2022-11-19 08:09:18,912 INFO L226 Difference]: Without dead ends: 159 [2022-11-19 08:09:18,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 87 SyntacticMatches, 10 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2155 ImplicationChecksByTransitivity, 14.2s TimeCoverageRelationStatistics Valid=616, Invalid=3416, Unknown=0, NotChecked=0, Total=4032 [2022-11-19 08:09:18,916 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 103 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:18,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 159 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-19 08:09:18,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2022-11-19 08:09:18,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 135. [2022-11-19 08:09:18,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 96 states have (on average 1.15625) internal successors, (111), 104 states have internal predecessors, (111), 19 states have call successors, (19), 19 states have call predecessors, (19), 19 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2022-11-19 08:09:18,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 149 transitions. [2022-11-19 08:09:18,988 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 149 transitions. Word has length 44 [2022-11-19 08:09:18,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:18,988 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 149 transitions. [2022-11-19 08:09:18,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 15 states have internal predecessors, (20), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-19 08:09:18,989 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 149 transitions. [2022-11-19 08:09:18,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-19 08:09:18,991 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:18,991 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-19 08:09:19,001 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ce5edf9-70de-44a8-a4b9-d232fe42e488/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-19 08:09:19,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ce5edf9-70de-44a8-a4b9-d232fe42e488/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:09:19,198 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:09:19,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:19,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1393344457, now seen corresponding path program 1 times [2022-11-19 08:09:19,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:09:19,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368499863] [2022-11-19 08:09:19,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:09:19,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:09:19,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:09:19,842 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 08:09:19,842 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:09:19,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368499863] [2022-11-19 08:09:19,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368499863] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:09:19,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [700163966] [2022-11-19 08:09:19,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:09:19,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:09:19,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ce5edf9-70de-44a8-a4b9-d232fe42e488/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:09:19,847 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ce5edf9-70de-44a8-a4b9-d232fe42e488/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:09:19,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ce5edf9-70de-44a8-a4b9-d232fe42e488/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 08:09:19,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:09:19,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 39 conjunts are in the unsatisfiable core [2022-11-19 08:09:19,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:09:20,490 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 08:09:20,490 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:09:21,207 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 08:09:21,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [700163966] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:09:21,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [364905784] [2022-11-19 08:09:21,211 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2022-11-19 08:09:21,226 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:09:21,227 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:09:21,227 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:09:21,228 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:09:25,085 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 31 for LOIs [2022-11-19 08:09:25,091 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 28 for LOIs [2022-11-19 08:09:25,144 INFO L197 IcfgInterpreter]: Interpreting procedure changeMethaneLevel with input of size 132 for LOIs [2022-11-19 08:09:25,173 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 23 for LOIs [2022-11-19 08:09:25,176 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:09:29,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [364905784] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:29,629 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 08:09:29,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [15, 13, 15] total 54 [2022-11-19 08:09:29,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214276638] [2022-11-19 08:09:29,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:29,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-19 08:09:29,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:09:29,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-19 08:09:29,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=437, Invalid=2425, Unknown=0, NotChecked=0, Total=2862 [2022-11-19 08:09:29,632 INFO L87 Difference]: Start difference. First operand 135 states and 149 transitions. Second operand has 20 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 16 states have internal predecessors, (22), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-19 08:09:36,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:36,618 INFO L93 Difference]: Finished difference Result 188 states and 224 transitions. [2022-11-19 08:09:36,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-19 08:09:36,619 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 16 states have internal predecessors, (22), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 47 [2022-11-19 08:09:36,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:36,619 INFO L225 Difference]: With dead ends: 188 [2022-11-19 08:09:36,619 INFO L226 Difference]: Without dead ends: 0 [2022-11-19 08:09:36,621 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 94 SyntacticMatches, 10 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2477 ImplicationChecksByTransitivity, 11.0s TimeCoverageRelationStatistics Valid=829, Invalid=4573, Unknown=0, NotChecked=0, Total=5402 [2022-11-19 08:09:36,622 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 100 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 649 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:36,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 88 Invalid, 758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 649 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-19 08:09:36,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-19 08:09:36,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-19 08:09:36,623 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 08:09:36,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-19 08:09:36,623 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 47 [2022-11-19 08:09:36,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:36,623 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-19 08:09:36,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 16 states have internal predecessors, (22), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-19 08:09:36,623 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-19 08:09:36,623 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-19 08:09:36,626 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 08:09:36,636 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ce5edf9-70de-44a8-a4b9-d232fe42e488/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-19 08:09:36,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ce5edf9-70de-44a8-a4b9-d232fe42e488/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-19 08:09:36,833 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-19 08:09:44,914 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 164 170) no Hoare annotation was computed. [2022-11-19 08:09:44,915 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 164 170) the Hoare annotation is: true [2022-11-19 08:09:44,915 INFO L895 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 398 409) the Hoare annotation is: (or (not (= |#NULL.offset| 0)) (not (= ~pumpRunning~0 0)) (not (= 1 ~systemActive~0)) (not (<= |old(~methaneLevelCritical~0)| 1)) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (not (= ~head~0.offset 0)) (not (<= ~waterLevel~0 2147483647)) (not (= |#NULL.base| 0)) (not (<= 0 (+ ~waterLevel~0 2147483648))) (not (<= 0 |old(~methaneLevelCritical~0)|)) (not (<= 0 |#StackHeapBarrier|)) (not (= ~head~0.base 0)) (not (= ~cleanupTimeShifts~0 4))) [2022-11-19 08:09:44,915 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 398 409) no Hoare annotation was computed. [2022-11-19 08:09:44,916 INFO L899 garLoopResultBuilder]: For program point L834-1(line 834) no Hoare annotation was computed. [2022-11-19 08:09:44,916 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 828 857) no Hoare annotation was computed. [2022-11-19 08:09:44,916 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 828 857) the Hoare annotation is: true [2022-11-19 08:09:44,916 INFO L902 garLoopResultBuilder]: At program point L853(lines 828 857) the Hoare annotation is: true [2022-11-19 08:09:44,916 INFO L899 garLoopResultBuilder]: For program point L849(line 849) no Hoare annotation was computed. [2022-11-19 08:09:44,916 INFO L899 garLoopResultBuilder]: For program point L842(lines 842 846) no Hoare annotation was computed. [2022-11-19 08:09:44,916 INFO L902 garLoopResultBuilder]: At program point L842-1(lines 842 846) the Hoare annotation is: true [2022-11-19 08:09:44,917 INFO L902 garLoopResultBuilder]: At program point L838-2(lines 838 852) the Hoare annotation is: true [2022-11-19 08:09:44,917 INFO L902 garLoopResultBuilder]: At program point L834(line 834) the Hoare annotation is: true [2022-11-19 08:09:44,917 INFO L895 garLoopResultBuilder]: At program point L151-1(lines 151 157) the Hoare annotation is: (or (not (<= ~methaneLevelCritical~0 1)) (not (= |old(~pumpRunning~0)| 0)) (not (= |#NULL.offset| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 1 ~systemActive~0)) (not (<= |old(~waterLevel~0)| 2147483647)) (not (= ~head~0.offset 0)) (not (<= 0 ~methaneLevelCritical~0)) (not (= |#NULL.base| 0)) (not (<= 0 |#StackHeapBarrier|)) (not (<= 0 (+ |old(~waterLevel~0)| 2147483648))) (not (= ~head~0.base 0)) (not (= ~cleanupTimeShifts~0 4))) [2022-11-19 08:09:44,917 INFO L895 garLoopResultBuilder]: At program point L180(lines 180 188) the Hoare annotation is: (or (not (<= ~methaneLevelCritical~0 1)) (not (= |old(~pumpRunning~0)| 0)) (not (= |#NULL.offset| 0)) (not (= 1 ~systemActive~0)) (not (<= |old(~waterLevel~0)| 2147483647)) (not (= ~head~0.offset 0)) (not (<= 0 ~methaneLevelCritical~0)) (not (= |#NULL.base| 0)) (not (<= 0 |#StackHeapBarrier|)) (not (<= 0 (+ |old(~waterLevel~0)| 2147483648))) (not (= ~head~0.base 0)) (not (= ~cleanupTimeShifts~0 4))) [2022-11-19 08:09:44,918 INFO L895 garLoopResultBuilder]: At program point L176(lines 176 193) the Hoare annotation is: (or (not (<= ~methaneLevelCritical~0 1)) (not (= |old(~pumpRunning~0)| 0)) (not (= |#NULL.offset| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 1 ~systemActive~0)) (not (<= |old(~waterLevel~0)| 2147483647)) (not (= ~head~0.offset 0)) (not (<= 0 ~methaneLevelCritical~0)) (not (= |#NULL.base| 0)) (not (<= 0 |#StackHeapBarrier|)) (not (<= 0 (+ |old(~waterLevel~0)| 2147483648))) (not (= ~head~0.base 0)) (not (= ~cleanupTimeShifts~0 4))) [2022-11-19 08:09:44,918 INFO L899 garLoopResultBuilder]: For program point L358(lines 358 364) no Hoare annotation was computed. [2022-11-19 08:09:44,918 INFO L895 garLoopResultBuilder]: At program point L354(lines 354 367) the Hoare annotation is: (or (not (<= ~methaneLevelCritical~0 1)) (not (= |old(~pumpRunning~0)| 0)) (not (= |#NULL.offset| 0)) (not (= 1 ~systemActive~0)) (not (<= |old(~waterLevel~0)| 2147483647)) (not (= ~head~0.offset 0)) (and (= ~pumpRunning~0 0) (= |timeShift_getWaterLevel_~retValue_acc~6#1| |timeShift_getWaterLevel_#res#1|) (= |timeShift___utac_acc__Specification4_spec__1_~tmp~4#1| |timeShift_getWaterLevel_#res#1|) (= |old(~waterLevel~0)| ~waterLevel~0) (= |timeShift_getWaterLevel_~retValue_acc~6#1| ~waterLevel~0)) (not (<= 0 ~methaneLevelCritical~0)) (not (= |#NULL.base| 0)) (not (<= 0 |#StackHeapBarrier|)) (not (<= 0 (+ |old(~waterLevel~0)| 2147483648))) (not (= ~head~0.base 0)) (not (= ~cleanupTimeShifts~0 4))) [2022-11-19 08:09:44,919 INFO L895 garLoopResultBuilder]: At program point L354-1(lines 346 370) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse2 (= |timeShift_getWaterLevel_~retValue_acc~6#1| |timeShift_getWaterLevel_#res#1|)) (.cse3 (= |timeShift___utac_acc__Specification4_spec__1_~tmp~4#1| |timeShift_getWaterLevel_#res#1|)) (.cse0 (= 1 ~systemActive~0)) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse5 (= |timeShift_getWaterLevel_~retValue_acc~6#1| ~waterLevel~0))) (or (not (<= ~methaneLevelCritical~0 1)) (not (= |old(~pumpRunning~0)| 0)) (not (= |#NULL.offset| 0)) (not .cse0) (not (<= |old(~waterLevel~0)| 2147483647)) (not (= ~head~0.offset 0)) (and .cse1 .cse2 .cse3 (not (= |timeShift___utac_acc__Specification4_spec__1_~tmp~4#1| 0)) .cse0 .cse4 .cse5) (and .cse1 .cse2 (= ~pumpRunning~0 |timeShift_isPumpRunning_~retValue_acc~1#1|) .cse3 (= |timeShift_isPumpRunning_#res#1| |timeShift___utac_acc__Specification4_spec__1_~tmp___0~2#1|) .cse0 (= |timeShift_isPumpRunning_#res#1| |timeShift_isPumpRunning_~retValue_acc~1#1|) .cse4 .cse5) (not (<= 0 ~methaneLevelCritical~0)) (not (= |#NULL.base| 0)) (not (<= 0 |#StackHeapBarrier|)) (not (<= 0 (+ |old(~waterLevel~0)| 2147483648))) (not (= ~head~0.base 0)) (not (= ~cleanupTimeShifts~0 4)))) [2022-11-19 08:09:44,919 INFO L899 garLoopResultBuilder]: For program point L144-1(lines 143 162) no Hoare annotation was computed. [2022-11-19 08:09:44,919 INFO L895 garLoopResultBuilder]: At program point L186(line 186) the Hoare annotation is: (or (not (<= ~methaneLevelCritical~0 1)) (not (= |old(~pumpRunning~0)| 0)) (not (= |#NULL.offset| 0)) (not (= 1 ~systemActive~0)) (not (<= |old(~waterLevel~0)| 2147483647)) (not (= ~head~0.offset 0)) (not (<= 0 ~methaneLevelCritical~0)) (not (= |#NULL.base| 0)) (not (<= 0 |#StackHeapBarrier|)) (not (<= 0 (+ |old(~waterLevel~0)| 2147483648))) (not (= ~head~0.base 0)) (not (= ~cleanupTimeShifts~0 4))) [2022-11-19 08:09:44,919 INFO L895 garLoopResultBuilder]: At program point L54(line 54) the Hoare annotation is: (or (not (<= ~methaneLevelCritical~0 1)) (not (= |old(~pumpRunning~0)| 0)) (not (= |#NULL.offset| 0)) (not (= 1 ~systemActive~0)) (not (<= |old(~waterLevel~0)| 2147483647)) (not (= ~head~0.offset 0)) (not (<= 0 ~methaneLevelCritical~0)) (not (= |#NULL.base| 0)) (not (<= 0 |#StackHeapBarrier|)) (not (<= 0 (+ |old(~waterLevel~0)| 2147483648))) (not (= ~head~0.base 0)) (not (= ~cleanupTimeShifts~0 4))) [2022-11-19 08:09:44,920 INFO L895 garLoopResultBuilder]: At program point L191(line 191) the Hoare annotation is: (or (not (<= ~methaneLevelCritical~0 1)) (not (= |old(~pumpRunning~0)| 0)) (not (= |#NULL.offset| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 1 ~systemActive~0)) (not (<= |old(~waterLevel~0)| 2147483647)) (not (= ~head~0.offset 0)) (not (<= 0 ~methaneLevelCritical~0)) (not (= |#NULL.base| 0)) (not (<= 0 |#StackHeapBarrier|)) (not (<= 0 (+ |old(~waterLevel~0)| 2147483648))) (not (= ~head~0.base 0)) (not (= ~cleanupTimeShifts~0 4))) [2022-11-19 08:09:44,920 INFO L895 garLoopResultBuilder]: At program point L191-1(lines 172 196) the Hoare annotation is: (or (not (<= ~methaneLevelCritical~0 1)) (not (= |old(~pumpRunning~0)| 0)) (not (= |#NULL.offset| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 1 ~systemActive~0)) (not (<= |old(~waterLevel~0)| 2147483647)) (not (= ~head~0.offset 0)) (not (<= 0 ~methaneLevelCritical~0)) (not (= |#NULL.base| 0)) (not (<= 0 |#StackHeapBarrier|)) (not (<= 0 (+ |old(~waterLevel~0)| 2147483648))) (not (= ~head~0.base 0)) (not (= ~cleanupTimeShifts~0 4))) [2022-11-19 08:09:44,920 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 140 163) the Hoare annotation is: (or (not (<= ~methaneLevelCritical~0 1)) (not (= |old(~pumpRunning~0)| 0)) (not (= |#NULL.offset| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 1 ~systemActive~0)) (not (<= |old(~waterLevel~0)| 2147483647)) (not (= ~head~0.offset 0)) (not (<= 0 ~methaneLevelCritical~0)) (not (= |#NULL.base| 0)) (not (<= 0 |#StackHeapBarrier|)) (not (<= 0 (+ |old(~waterLevel~0)| 2147483648))) (not (= ~head~0.base 0)) (not (= ~cleanupTimeShifts~0 4))) [2022-11-19 08:09:44,920 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 140 163) no Hoare annotation was computed. [2022-11-19 08:09:44,921 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2022-11-19 08:09:44,921 INFO L899 garLoopResultBuilder]: For program point L93(lines 93 99) no Hoare annotation was computed. [2022-11-19 08:09:44,921 INFO L899 garLoopResultBuilder]: For program point L93-1(lines 93 99) no Hoare annotation was computed. [2022-11-19 08:09:44,921 INFO L902 garLoopResultBuilder]: At program point L122(lines 63 126) the Hoare annotation is: true [2022-11-19 08:09:44,922 INFO L895 garLoopResultBuilder]: At program point L85(line 85) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (<= |ULTIMATE.start_main_~tmp~8#1| 1)) (.cse2 (= |ULTIMATE.start_valid_product_~retValue_acc~4#1| 1)) (.cse3 (= ~head~0.offset 0)) (.cse4 (not (= |ULTIMATE.start_test_~tmp~0#1| 0))) (.cse5 (= 1 ~systemActive~0)) (.cse6 (<= 0 (+ |ULTIMATE.start_test_~tmp~0#1| 2147483648))) (.cse7 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse8 (= ~head~0.base 0)) (.cse9 (<= 1 |ULTIMATE.start_main_~tmp~8#1|)) (.cse10 (= |#NULL.offset| 0)) (.cse11 (<= |ULTIMATE.start_test_~tmp~0#1| 2147483647)) (.cse12 (= ~cleanupTimeShifts~0 4)) (.cse13 (= |#NULL.base| 0))) (or (and (<= |ULTIMATE.start_test_~tmp___0~0#1| 2147483647) (<= 1 |ULTIMATE.start_valid_product_#res#1|) (<= |ULTIMATE.start_test_~tmp___2~0#1| 2147483647) .cse0 (<= ~methaneLevelCritical~0 1) (<= 0 (+ |ULTIMATE.start_test_~tmp___0~0#1| 2147483648)) .cse1 .cse2 .cse3 .cse4 .cse5 (<= |ULTIMATE.start_valid_product_#res#1| 1) (<= 0 (+ ~waterLevel~0 2147483648)) .cse6 .cse7 (<= 0 ~methaneLevelCritical~0) (<= ~waterLevel~0 2147483647) .cse8 .cse9 .cse10 (<= 0 (+ |ULTIMATE.start_test_~tmp___2~0#1| 2147483648)) (or (not (= |ULTIMATE.start_test_~tmp___2~0#1| 0)) (and (<= |ULTIMATE.start_test_~tmp___1~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_test_~tmp___1~0#1| 2147483648)))) .cse11 (<= 0 |#StackHeapBarrier|) .cse12 .cse13) (let ((.cse14 (select |#memory_int| 1))) (and (= (select |#length| 15) 25) (= 9 (select |#length| 5)) (= (select |#length| 9) 21) (= 30 (select |#length| 7)) (= 1 (select |#valid| 5)) (= (select |#length| 3) 12) (= (select |#valid| 15) 1) .cse0 (= (select |#valid| 9) 1) (= (select |#length| 12) 25) (= (select |#valid| 11) 1) (= ~methaneLevelCritical~0 0) (= 30 (select |#length| 4)) .cse1 .cse2 (= 31 (select |#length| 2)) .cse3 .cse4 (= 2 (select |#length| 1)) (= (select |#length| 8) 9) (= (select |#valid| 3) 1) (= (select |#valid| 7) 1) (= 30 (select |#length| 13)) .cse5 (= 30 (select |#length| 10)) (= (select |#valid| 12) 1) .cse6 .cse7 (= (select |#valid| 4) 1) (= (select |#valid| 1) 1) (= (select |#length| 6) 21) (= |ULTIMATE.start_valid_product_~retValue_acc~4#1| |ULTIMATE.start_valid_product_#res#1|) (= (select |#valid| 14) 1) (= 9 (select |#length| 14)) (= (select |#valid| 0) 0) .cse8 .cse9 (= (select |#valid| 2) 1) .cse10 (= 9 (select |#length| 11)) (= ~waterLevel~0 1) (= (select .cse14 0) 48) (= (select |#valid| 6) 1) (= (select .cse14 1) 0) .cse11 (= (select |#valid| 10) 1) (= (select |#valid| 8) 1) (= (select |#valid| 13) 1) (< 0 |#StackHeapBarrier|) .cse12 .cse13)))) [2022-11-19 08:09:44,922 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-19 08:09:44,922 INFO L895 garLoopResultBuilder]: At program point L119(lines 72 120) the Hoare annotation is: false [2022-11-19 08:09:44,922 INFO L899 garLoopResultBuilder]: For program point L74(lines 73 118) no Hoare annotation was computed. [2022-11-19 08:09:44,923 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-19 08:09:44,923 INFO L895 garLoopResultBuilder]: At program point L95(line 95) the Hoare annotation is: (let ((.cse61 (select |#memory_int| 1))) (let ((.cse4 (<= |ULTIMATE.start_test_~tmp___0~0#1| 2147483647)) (.cse51 (<= 1 |ULTIMATE.start_valid_product_#res#1|)) (.cse8 (= ~pumpRunning~0 0)) (.cse9 (<= 0 (+ |ULTIMATE.start_test_~tmp___0~0#1| 2147483648))) (.cse15 (<= |ULTIMATE.start_main_~tmp~8#1| 1)) (.cse24 (= 1 ~systemActive~0)) (.cse54 (<= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse55 (<= 0 (+ ~waterLevel~0 2147483648))) (.cse0 (= (select |#length| 15) 25)) (.cse1 (= 9 (select |#length| 5))) (.cse2 (= (select |#length| 9) 21)) (.cse3 (= 30 (select |#length| 7))) (.cse5 (= 1 (select |#valid| 5))) (.cse6 (= (select |#length| 3) 12)) (.cse7 (= (select |#valid| 15) 1)) (.cse10 (= (select |#valid| 9) 1)) (.cse11 (= (select |#length| 12) 25)) (.cse12 (= (select |#valid| 11) 1)) (.cse13 (= ~methaneLevelCritical~0 0)) (.cse14 (= 30 (select |#length| 4))) (.cse17 (= 31 (select |#length| 2))) (.cse19 (= 2 (select |#length| 1))) (.cse20 (= (select |#length| 8) 9)) (.cse21 (= (select |#valid| 3) 1)) (.cse22 (= (select |#valid| 7) 1)) (.cse23 (= 30 (select |#length| 13))) (.cse25 (= 30 (select |#length| 10))) (.cse26 (= (select |#valid| 12) 1)) (.cse29 (= (select |#valid| 4) 1)) (.cse30 (= (select |#valid| 1) 1)) (.cse31 (= (select |#length| 6) 21)) (.cse32 (= |ULTIMATE.start_valid_product_~retValue_acc~4#1| |ULTIMATE.start_valid_product_#res#1|)) (.cse33 (= (select |#valid| 14) 1)) (.cse34 (= 9 (select |#length| 14))) (.cse35 (= (select |#valid| 0) 0)) (.cse38 (= (select |#valid| 2) 1)) (.cse40 (= 9 (select |#length| 11))) (.cse41 (= (select .cse61 0) 48)) (.cse42 (= (select |#valid| 6) 1)) (.cse43 (= (select .cse61 1) 0)) (.cse45 (= (select |#valid| 10) 1)) (.cse46 (= (select |#valid| 8) 1)) (.cse47 (= (select |#valid| 13) 1)) (.cse48 (< 0 |#StackHeapBarrier|)) (.cse52 (<= |ULTIMATE.start_test_~tmp___2~0#1| 2147483647)) (.cse53 (<= ~methaneLevelCritical~0 1)) (.cse16 (= |ULTIMATE.start_valid_product_~retValue_acc~4#1| 1)) (.cse18 (= ~head~0.offset 0)) (.cse58 (<= 0 (+ |ULTIMATE.start_test_~tmp___2~0#1| 2147483648))) (.cse27 (<= 0 (+ |ULTIMATE.start_test_~tmp~0#1| 2147483648))) (.cse28 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse56 (<= 0 ~methaneLevelCritical~0)) (.cse57 (<= ~waterLevel~0 2147483647)) (.cse36 (= ~head~0.base 0)) (.cse37 (<= 1 |ULTIMATE.start_main_~tmp~8#1|)) (.cse39 (= |#NULL.offset| 0)) (.cse44 (<= |ULTIMATE.start_test_~tmp~0#1| 2147483647)) (.cse59 (<= 0 |#StackHeapBarrier|)) (.cse49 (= ~cleanupTimeShifts~0 4)) (.cse50 (= |#NULL.base| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 .cse24 .cse25 .cse26 .cse27 .cse28 .cse29 .cse30 .cse31 .cse32 .cse33 .cse34 .cse35 .cse36 .cse37 .cse38 .cse39 .cse40 (= ~waterLevel~0 1) .cse41 .cse42 .cse43 .cse44 .cse45 .cse46 .cse47 .cse48 .cse49 .cse50) (and .cse4 .cse51 .cse52 .cse8 .cse53 .cse9 .cse15 .cse16 .cse18 .cse24 .cse54 .cse55 .cse27 .cse28 .cse56 .cse57 .cse36 .cse37 .cse39 .cse58 (or (not (= |ULTIMATE.start_test_~tmp___2~0#1| 0)) (and (<= |ULTIMATE.start_test_~tmp___1~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_test_~tmp___1~0#1| 2147483648)))) .cse44 .cse59 .cse49 .cse50) (and .cse4 .cse51 .cse8 .cse9 (not (= |ULTIMATE.start_test_~tmp___0~0#1| 0)) .cse15 (not (= ~waterLevel~0 0)) .cse24 .cse54 .cse55 (let ((.cse60 (not (= |ULTIMATE.start_test_~tmp~0#1| 0)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse5 .cse6 .cse7 .cse10 .cse11 .cse12 .cse13 .cse14 .cse17 .cse18 .cse60 .cse19 .cse20 .cse21 .cse22 .cse23 .cse25 .cse26 .cse29 .cse30 .cse31 .cse32 .cse33 .cse34 .cse35 .cse38 .cse40 .cse41 .cse42 .cse43 .cse45 .cse46 .cse47 .cse48) (and .cse52 .cse53 .cse16 .cse18 .cse60 .cse58))) .cse27 .cse28 .cse56 .cse57 .cse36 .cse37 .cse39 .cse44 .cse59 .cse49 .cse50)))) [2022-11-19 08:09:44,924 INFO L895 garLoopResultBuilder]: At program point L116(lines 73 118) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (<= |ULTIMATE.start_main_~tmp~8#1| 1)) (.cse2 (= |ULTIMATE.start_valid_product_~retValue_acc~4#1| 1)) (.cse3 (= ~head~0.offset 0)) (.cse4 (= 1 ~systemActive~0)) (.cse5 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse6 (= ~head~0.base 0)) (.cse7 (<= 1 |ULTIMATE.start_main_~tmp~8#1|)) (.cse8 (= |#NULL.offset| 0)) (.cse9 (= ~cleanupTimeShifts~0 4)) (.cse10 (= |#NULL.base| 0))) (or (and (<= |ULTIMATE.start_test_~tmp___0~0#1| 2147483647) (<= 1 |ULTIMATE.start_valid_product_#res#1|) (<= |ULTIMATE.start_test_~tmp___2~0#1| 2147483647) .cse0 (<= ~methaneLevelCritical~0 1) (<= 0 (+ |ULTIMATE.start_test_~tmp___0~0#1| 2147483648)) .cse1 .cse2 .cse3 .cse4 (<= |ULTIMATE.start_valid_product_#res#1| 1) (<= 0 (+ ~waterLevel~0 2147483648)) (<= 0 (+ |ULTIMATE.start_test_~tmp~0#1| 2147483648)) .cse5 (<= 0 ~methaneLevelCritical~0) (<= ~waterLevel~0 2147483647) .cse6 .cse7 .cse8 (<= 0 (+ |ULTIMATE.start_test_~tmp___2~0#1| 2147483648)) (or (not (= |ULTIMATE.start_test_~tmp___2~0#1| 0)) (and (<= |ULTIMATE.start_test_~tmp___1~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_test_~tmp___1~0#1| 2147483648)))) (<= |ULTIMATE.start_test_~tmp~0#1| 2147483647) (<= 0 |#StackHeapBarrier|) .cse9 .cse10) (let ((.cse11 (select |#memory_int| 1))) (and (= (select |#length| 15) 25) (= 9 (select |#length| 5)) (= (select |#length| 9) 21) (= 30 (select |#length| 7)) (= 1 (select |#valid| 5)) (= (select |#length| 3) 12) (= (select |#valid| 15) 1) .cse0 (= (select |#valid| 9) 1) (= (select |#length| 12) 25) (= (select |#valid| 11) 1) (= ~methaneLevelCritical~0 0) (= 30 (select |#length| 4)) .cse1 .cse2 (= 31 (select |#length| 2)) .cse3 (= 2 (select |#length| 1)) (= (select |#length| 8) 9) (= (select |#valid| 3) 1) (= (select |#valid| 7) 1) (= 30 (select |#length| 13)) .cse4 (= 30 (select |#length| 10)) (= (select |#valid| 12) 1) .cse5 (= (select |#valid| 4) 1) (= (select |#valid| 1) 1) (= (select |#length| 6) 21) (= |ULTIMATE.start_valid_product_~retValue_acc~4#1| |ULTIMATE.start_valid_product_#res#1|) (= (select |#valid| 14) 1) (= 9 (select |#length| 14)) (= (select |#valid| 0) 0) .cse6 .cse7 (= (select |#valid| 2) 1) .cse8 (= 9 (select |#length| 11)) (= ~waterLevel~0 1) (= (select .cse11 0) 48) (= (select |#valid| 6) 1) (= (select .cse11 1) 0) (= (select |#valid| 10) 1) (= (select |#valid| 8) 1) (= (select |#valid| 13) 1) (< 0 |#StackHeapBarrier|) .cse9 .cse10)))) [2022-11-19 08:09:44,924 INFO L899 garLoopResultBuilder]: For program point L83(lines 83 89) no Hoare annotation was computed. [2022-11-19 08:09:44,924 INFO L899 garLoopResultBuilder]: For program point L83-1(lines 83 89) no Hoare annotation was computed. [2022-11-19 08:09:44,925 INFO L895 garLoopResultBuilder]: At program point L909(lines 909 916) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= (select |#length| 15) 25) (= 9 (select |#length| 5)) (= (select |#length| 9) 21) (= |ULTIMATE.start_valid_product_#res#1| |ULTIMATE.start_main_~tmp~8#1|) (= 30 (select |#length| 7)) (= 1 (select |#valid| 5)) (= (select |#length| 3) 12) (= (select |#valid| 15) 1) (= ~pumpRunning~0 0) (= (select |#valid| 9) 1) (= (select |#length| 12) 25) (= (select |#valid| 11) 1) (= ~methaneLevelCritical~0 0) (= 30 (select |#length| 4)) (= |ULTIMATE.start_valid_product_~retValue_acc~4#1| 1) (= 31 (select |#length| 2)) (= ~head~0.offset 0) (= 2 (select |#length| 1)) (= (select |#length| 8) 9) (= (select |#valid| 3) 1) (= (select |#valid| 7) 1) (= 30 (select |#length| 13)) (= 30 (select |#length| 10)) (= (select |#valid| 12) 1) (= (select |#valid| 4) 1) (= (select |#valid| 1) 1) (= (select |#length| 6) 21) (= |ULTIMATE.start_valid_product_~retValue_acc~4#1| |ULTIMATE.start_valid_product_#res#1|) (= (select |#valid| 14) 1) (= 9 (select |#length| 14)) (= (select |#valid| 0) 0) (= ~head~0.base 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= 9 (select |#length| 11)) (= ~waterLevel~0 1) (= (select .cse0 0) 48) (= ~waterLevel~0 ~systemActive~0) (= (select |#valid| 6) 1) (= (select .cse0 1) 0) (= (select |#valid| 10) 1) (= (select |#valid| 8) 1) (= (select |#valid| 13) 1) (< 0 |#StackHeapBarrier|) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))) [2022-11-19 08:09:44,925 INFO L902 garLoopResultBuilder]: At program point L909-2(lines 909 916) the Hoare annotation is: true [2022-11-19 08:09:44,925 INFO L895 garLoopResultBuilder]: At program point L109-2(lines 103 114) the Hoare annotation is: (and (<= |ULTIMATE.start_test_~tmp___0~0#1| 2147483647) (<= 1 |ULTIMATE.start_valid_product_#res#1|) (<= |ULTIMATE.start_test_~tmp___2~0#1| 2147483647) (= ~pumpRunning~0 0) (<= ~methaneLevelCritical~0 1) (<= 0 (+ |ULTIMATE.start_test_~tmp___0~0#1| 2147483648)) (<= |ULTIMATE.start_main_~tmp~8#1| 1) (= |ULTIMATE.start_valid_product_~retValue_acc~4#1| 1) (= ~head~0.offset 0) (= 1 ~systemActive~0) (<= |ULTIMATE.start_valid_product_#res#1| 1) (<= 0 (+ ~waterLevel~0 2147483648)) (<= 0 (+ |ULTIMATE.start_test_~tmp~0#1| 2147483648)) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (<= 0 ~methaneLevelCritical~0) (<= ~waterLevel~0 2147483647) (= ~head~0.base 0) (<= 1 |ULTIMATE.start_main_~tmp~8#1|) (= |#NULL.offset| 0) (<= 0 (+ |ULTIMATE.start_test_~tmp___2~0#1| 2147483648)) (or (not (= |ULTIMATE.start_test_~tmp___2~0#1| 0)) (and (<= |ULTIMATE.start_test_~tmp___1~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_test_~tmp___1~0#1| 2147483648)))) (<= |ULTIMATE.start_test_~tmp~0#1| 2147483647) (<= 0 |#StackHeapBarrier|) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0)) [2022-11-19 08:09:44,925 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 386 397) no Hoare annotation was computed. [2022-11-19 08:09:44,926 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 386 397) the Hoare annotation is: (or (not (<= ~methaneLevelCritical~0 1)) (not (= |#NULL.offset| 0)) (not (= ~pumpRunning~0 0)) (not (= 1 ~systemActive~0)) (not (<= |old(~waterLevel~0)| 2147483647)) (not (= ~head~0.offset 0)) (not (<= 0 ~methaneLevelCritical~0)) (not (= |#NULL.base| 0)) (= |old(~waterLevel~0)| ~waterLevel~0) (not (<= 0 |#StackHeapBarrier|)) (not (<= 0 (+ |old(~waterLevel~0)| 2147483648))) (not (= ~head~0.base 0)) (not (= ~cleanupTimeShifts~0 4))) [2022-11-19 08:09:44,929 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:44,931 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 08:09:44,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:09:44 BoogieIcfgContainer [2022-11-19 08:09:44,962 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 08:09:44,962 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 08:09:44,962 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 08:09:44,963 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 08:09:44,963 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:08:54" (3/4) ... [2022-11-19 08:09:44,966 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 08:09:44,971 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-19 08:09:44,971 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-19 08:09:44,971 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-19 08:09:44,971 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-19 08:09:44,972 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-19 08:09:44,978 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 40 nodes and edges [2022-11-19 08:09:44,978 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-19 08:09:44,979 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-19 08:09:44,979 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 08:09:44,979 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 08:09:45,003 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((((((((((((((((((((((((((unknown-#length-unknown[15] == 25 && 9 == unknown-#length-unknown[5]) && unknown-#length-unknown[9] == 21) && \result == tmp) && 30 == unknown-#length-unknown[7]) && 1 == \valid[5]) && unknown-#length-unknown[3] == 12) && \valid[15] == 1) && pumpRunning == 0) && \valid[9] == 1) && unknown-#length-unknown[12] == 25) && \valid[11] == 1) && methaneLevelCritical == 0) && 30 == unknown-#length-unknown[4]) && retValue_acc == 1) && 31 == unknown-#length-unknown[2]) && head == 0) && 2 == unknown-#length-unknown[1]) && unknown-#length-unknown[8] == 9) && \valid[3] == 1) && \valid[7] == 1) && 30 == unknown-#length-unknown[13]) && 30 == unknown-#length-unknown[10]) && \valid[12] == 1) && \valid[4] == 1) && \valid[1] == 1) && unknown-#length-unknown[6] == 21) && retValue_acc == \result) && \valid[14] == 1) && 9 == unknown-#length-unknown[14]) && \valid[0] == 0) && head == 0) && \valid[2] == 1) && #NULL == 0) && 9 == unknown-#length-unknown[11]) && waterLevel == 1) && unknown-#memory_int-unknown[1][0] == 48) && waterLevel == systemActive) && \valid[6] == 1) && unknown-#memory_int-unknown[1][1] == 0) && \valid[10] == 1) && \valid[8] == 1) && \valid[13] == 1) && 0 < unknown-#StackHeapBarrier-unknown) && cleanupTimeShifts == 4) && #NULL == 0 [2022-11-19 08:09:45,003 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((((((tmp___0 <= 2147483647 && 1 <= \result) && tmp___2 <= 2147483647) && pumpRunning == 0) && methaneLevelCritical <= 1) && 0 <= tmp___0 + 2147483648) && tmp <= 1) && retValue_acc == 1) && head == 0) && 1 == systemActive) && \result <= 1) && 0 <= waterLevel + 2147483648) && 0 <= tmp + 2147483648) && splverifierCounter == 0) && 0 <= methaneLevelCritical) && waterLevel <= 2147483647) && head == 0) && 1 <= tmp) && #NULL == 0) && 0 <= tmp___2 + 2147483648) && (!(tmp___2 == 0) || (tmp___1 <= 2147483647 && 0 <= tmp___1 + 2147483648))) && tmp <= 2147483647) && 0 <= unknown-#StackHeapBarrier-unknown) && cleanupTimeShifts == 4) && #NULL == 0) || (((((((((((((((((((((((((((((((((((((((((((((((unknown-#length-unknown[15] == 25 && 9 == unknown-#length-unknown[5]) && unknown-#length-unknown[9] == 21) && 30 == unknown-#length-unknown[7]) && 1 == \valid[5]) && unknown-#length-unknown[3] == 12) && \valid[15] == 1) && pumpRunning == 0) && \valid[9] == 1) && unknown-#length-unknown[12] == 25) && \valid[11] == 1) && methaneLevelCritical == 0) && 30 == unknown-#length-unknown[4]) && tmp <= 1) && retValue_acc == 1) && 31 == unknown-#length-unknown[2]) && head == 0) && 2 == unknown-#length-unknown[1]) && unknown-#length-unknown[8] == 9) && \valid[3] == 1) && \valid[7] == 1) && 30 == unknown-#length-unknown[13]) && 1 == systemActive) && 30 == unknown-#length-unknown[10]) && \valid[12] == 1) && splverifierCounter == 0) && \valid[4] == 1) && \valid[1] == 1) && unknown-#length-unknown[6] == 21) && retValue_acc == \result) && \valid[14] == 1) && 9 == unknown-#length-unknown[14]) && \valid[0] == 0) && head == 0) && 1 <= tmp) && \valid[2] == 1) && #NULL == 0) && 9 == unknown-#length-unknown[11]) && waterLevel == 1) && unknown-#memory_int-unknown[1][0] == 48) && \valid[6] == 1) && unknown-#memory_int-unknown[1][1] == 0) && \valid[10] == 1) && \valid[8] == 1) && \valid[13] == 1) && 0 < unknown-#StackHeapBarrier-unknown) && cleanupTimeShifts == 4) && #NULL == 0) [2022-11-19 08:09:45,004 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((!(methaneLevelCritical <= 1) || !(\old(pumpRunning) == 0)) || !(#NULL == 0)) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(\old(waterLevel) <= 2147483647)) || !(head == 0)) || !(0 <= methaneLevelCritical)) || !(#NULL == 0)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(0 <= \old(waterLevel) + 2147483648)) || !(head == 0)) || !(cleanupTimeShifts == 4) [2022-11-19 08:09:45,004 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((!(methaneLevelCritical <= 1) || !(\old(pumpRunning) == 0)) || !(#NULL == 0)) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(\old(waterLevel) <= 2147483647)) || !(head == 0)) || !(0 <= methaneLevelCritical)) || !(#NULL == 0)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(0 <= \old(waterLevel) + 2147483648)) || !(head == 0)) || !(cleanupTimeShifts == 4) [2022-11-19 08:09:45,004 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((!(methaneLevelCritical <= 1) || !(\old(pumpRunning) == 0)) || !(#NULL == 0)) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(\old(waterLevel) <= 2147483647)) || !(head == 0)) || !(0 <= methaneLevelCritical)) || !(#NULL == 0)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(0 <= \old(waterLevel) + 2147483648)) || !(head == 0)) || !(cleanupTimeShifts == 4) [2022-11-19 08:09:45,005 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((!(methaneLevelCritical <= 1) || !(\old(pumpRunning) == 0)) || !(#NULL == 0)) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(\old(waterLevel) <= 2147483647)) || !(head == 0)) || !(0 <= methaneLevelCritical)) || !(#NULL == 0)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(0 <= \old(waterLevel) + 2147483648)) || !(head == 0)) || !(cleanupTimeShifts == 4) [2022-11-19 08:09:45,005 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((!(methaneLevelCritical <= 1) || !(\old(pumpRunning) == 0)) || !(#NULL == 0)) || !(1 == systemActive)) || !(\old(waterLevel) <= 2147483647)) || !(head == 0)) || ((((pumpRunning == 0 && retValue_acc == \result) && tmp == \result) && \old(waterLevel) == waterLevel) && retValue_acc == waterLevel)) || !(0 <= methaneLevelCritical)) || !(#NULL == 0)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(0 <= \old(waterLevel) + 2147483648)) || !(head == 0)) || !(cleanupTimeShifts == 4) [2022-11-19 08:09:45,006 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((!(methaneLevelCritical <= 1) || !(\old(pumpRunning) == 0)) || !(#NULL == 0)) || !(1 == systemActive)) || !(\old(waterLevel) <= 2147483647)) || !(head == 0)) || ((((((pumpRunning == 0 && retValue_acc == \result) && tmp == \result) && !(tmp == 0)) && 1 == systemActive) && \old(waterLevel) == waterLevel) && retValue_acc == waterLevel)) || ((((((((pumpRunning == 0 && retValue_acc == \result) && pumpRunning == retValue_acc) && tmp == \result) && \result == tmp___0) && 1 == systemActive) && \result == retValue_acc) && \old(waterLevel) == waterLevel) && retValue_acc == waterLevel)) || !(0 <= methaneLevelCritical)) || !(#NULL == 0)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(0 <= \old(waterLevel) + 2147483648)) || !(head == 0)) || !(cleanupTimeShifts == 4) [2022-11-19 08:09:45,006 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((!(methaneLevelCritical <= 1) || !(\old(pumpRunning) == 0)) || !(#NULL == 0)) || !(1 == systemActive)) || !(\old(waterLevel) <= 2147483647)) || !(head == 0)) || !(0 <= methaneLevelCritical)) || !(#NULL == 0)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(0 <= \old(waterLevel) + 2147483648)) || !(head == 0)) || !(cleanupTimeShifts == 4) [2022-11-19 08:09:45,006 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((!(methaneLevelCritical <= 1) || !(\old(pumpRunning) == 0)) || !(#NULL == 0)) || !(1 == systemActive)) || !(\old(waterLevel) <= 2147483647)) || !(head == 0)) || !(0 <= methaneLevelCritical)) || !(#NULL == 0)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(0 <= \old(waterLevel) + 2147483648)) || !(head == 0)) || !(cleanupTimeShifts == 4) [2022-11-19 08:09:45,023 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ce5edf9-70de-44a8-a4b9-d232fe42e488/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 08:09:45,023 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 08:09:45,024 INFO L158 Benchmark]: Toolchain (without parser) took 52869.52ms. Allocated memory was 132.1MB in the beginning and 318.8MB in the end (delta: 186.6MB). Free memory was 98.5MB in the beginning and 268.3MB in the end (delta: -169.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-19 08:09:45,024 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 88.1MB. Free memory was 45.7MB in the beginning and 45.7MB in the end (delta: 37.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:09:45,025 INFO L158 Benchmark]: CACSL2BoogieTranslator took 816.45ms. Allocated memory is still 132.1MB. Free memory was 98.2MB in the beginning and 100.8MB in the end (delta: -2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-19 08:09:45,025 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.74ms. Allocated memory is still 132.1MB. Free memory was 100.8MB in the beginning and 98.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:09:45,026 INFO L158 Benchmark]: Boogie Preprocessor took 36.05ms. Allocated memory is still 132.1MB. Free memory was 98.6MB in the beginning and 97.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:09:45,026 INFO L158 Benchmark]: RCFGBuilder took 927.14ms. Allocated memory is still 132.1MB. Free memory was 97.3MB in the beginning and 76.3MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-19 08:09:45,026 INFO L158 Benchmark]: TraceAbstraction took 50956.04ms. Allocated memory was 132.1MB in the beginning and 318.8MB in the end (delta: 186.6MB). Free memory was 75.6MB in the beginning and 273.5MB in the end (delta: -197.9MB). Peak memory consumption was 164.3MB. Max. memory is 16.1GB. [2022-11-19 08:09:45,027 INFO L158 Benchmark]: Witness Printer took 61.45ms. Allocated memory is still 318.8MB. Free memory was 273.5MB in the beginning and 268.3MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-19 08:09:45,028 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 88.1MB. Free memory was 45.7MB in the beginning and 45.7MB in the end (delta: 37.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 816.45ms. Allocated memory is still 132.1MB. Free memory was 98.2MB in the beginning and 100.8MB in the end (delta: -2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.74ms. Allocated memory is still 132.1MB. Free memory was 100.8MB in the beginning and 98.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.05ms. Allocated memory is still 132.1MB. Free memory was 98.6MB in the beginning and 97.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 927.14ms. Allocated memory is still 132.1MB. Free memory was 97.3MB in the beginning and 76.3MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 50956.04ms. Allocated memory was 132.1MB in the beginning and 318.8MB in the end (delta: 186.6MB). Free memory was 75.6MB in the beginning and 273.5MB in the end (delta: -197.9MB). Peak memory consumption was 164.3MB. Max. memory is 16.1GB. * Witness Printer took 61.45ms. Allocated memory is still 318.8MB. Free memory was 273.5MB in the beginning and 268.3MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 54]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 44 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 50.8s, OverallIterations: 8, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 15.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 8.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 397 SdHoareTripleChecker+Valid, 2.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 393 mSDsluCounter, 547 SdHoareTripleChecker+Invalid, 2.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 350 mSDsCounter, 230 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1208 IncrementalHoareTripleChecker+Invalid, 1438 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 230 mSolverCounterUnsat, 197 mSDtfsCounter, 1208 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 368 GetRequests, 196 SyntacticMatches, 20 SemanticMatches, 152 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4643 ImplicationChecksByTransitivity, 25.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=135occurred in iteration=7, InterpolantAutomatonStates: 67, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 32 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 27 LocationsWithAnnotation, 268 PreInvPairs, 362 NumberOfFragments, 2280 HoareAnnotationTreeSize, 268 FomulaSimplifications, 886 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 27 FomulaSimplificationsInter, 33085 FormulaSimplificationTreeSizeReductionInter, 7.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 5.5s InterpolantComputationTime, 283 NumberOfCodeBlocks, 283 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 362 ConstructedInterpolants, 0 QuantifiedInterpolants, 1928 SizeOfPredicates, 22 NumberOfNonLiveVariables, 440 ConjunctsInSsa, 78 ConjunctsInUnsatCore, 12 InterpolantComputations, 6 PerfectInterpolantSequences, 18/114 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: OVERALL_TIME: 8.8s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 9, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 70, DAG_INTERPRETER_EARLY_EXITS: 2, TOOLS_POST_APPLICATIONS: 85, TOOLS_POST_TIME: 1.9s, TOOLS_POST_CALL_APPLICATIONS: 41, TOOLS_POST_CALL_TIME: 4.3s, TOOLS_POST_RETURN_APPLICATIONS: 34, TOOLS_POST_RETURN_TIME: 1.5s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 160, TOOLS_QUANTIFIERELIM_TIME: 7.6s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.8s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 208, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 32, DOMAIN_JOIN_TIME: 0.7s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 1, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 3, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 70, DOMAIN_ISBOTTOM_TIME: 0.2s, LOOP_SUMMARIZER_APPLICATIONS: 2, LOOP_SUMMARIZER_CACHE_MISSES: 2, LOOP_SUMMARIZER_OVERALL_TIME: 5.1s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 5.1s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 3, CALL_SUMMARIZER_APPLICATIONS: 34, CALL_SUMMARIZER_CACHE_MISSES: 7, CALL_SUMMARIZER_OVERALL_TIME: 0.1s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.1s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 707, DAG_COMPRESSION_RETAINED_NODES: 187, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 838]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 151]: Loop Invariant Derived loop invariant: (((((((((((!(methaneLevelCritical <= 1) || !(\old(pumpRunning) == 0)) || !(#NULL == 0)) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(\old(waterLevel) <= 2147483647)) || !(head == 0)) || !(0 <= methaneLevelCritical)) || !(#NULL == 0)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(0 <= \old(waterLevel) + 2147483648)) || !(head == 0)) || !(cleanupTimeShifts == 4) - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 72]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 828]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: ((((((((((!(methaneLevelCritical <= 1) || !(\old(pumpRunning) == 0)) || !(#NULL == 0)) || !(1 == systemActive)) || !(\old(waterLevel) <= 2147483647)) || !(head == 0)) || !(0 <= methaneLevelCritical)) || !(#NULL == 0)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(0 <= \old(waterLevel) + 2147483648)) || !(head == 0)) || !(cleanupTimeShifts == 4) - InvariantResult [Line: 176]: Loop Invariant Derived loop invariant: (((((((((((!(methaneLevelCritical <= 1) || !(\old(pumpRunning) == 0)) || !(#NULL == 0)) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(\old(waterLevel) <= 2147483647)) || !(head == 0)) || !(0 <= methaneLevelCritical)) || !(#NULL == 0)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(0 <= \old(waterLevel) + 2147483648)) || !(head == 0)) || !(cleanupTimeShifts == 4) - InvariantResult [Line: 909]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((((((((((((((unknown-#length-unknown[15] == 25 && 9 == unknown-#length-unknown[5]) && unknown-#length-unknown[9] == 21) && \result == tmp) && 30 == unknown-#length-unknown[7]) && 1 == \valid[5]) && unknown-#length-unknown[3] == 12) && \valid[15] == 1) && pumpRunning == 0) && \valid[9] == 1) && unknown-#length-unknown[12] == 25) && \valid[11] == 1) && methaneLevelCritical == 0) && 30 == unknown-#length-unknown[4]) && retValue_acc == 1) && 31 == unknown-#length-unknown[2]) && head == 0) && 2 == unknown-#length-unknown[1]) && unknown-#length-unknown[8] == 9) && \valid[3] == 1) && \valid[7] == 1) && 30 == unknown-#length-unknown[13]) && 30 == unknown-#length-unknown[10]) && \valid[12] == 1) && \valid[4] == 1) && \valid[1] == 1) && unknown-#length-unknown[6] == 21) && retValue_acc == \result) && \valid[14] == 1) && 9 == unknown-#length-unknown[14]) && \valid[0] == 0) && head == 0) && \valid[2] == 1) && #NULL == 0) && 9 == unknown-#length-unknown[11]) && waterLevel == 1) && unknown-#memory_int-unknown[1][0] == 48) && waterLevel == systemActive) && \valid[6] == 1) && unknown-#memory_int-unknown[1][1] == 0) && \valid[10] == 1) && \valid[8] == 1) && \valid[13] == 1) && 0 < unknown-#StackHeapBarrier-unknown) && cleanupTimeShifts == 4) && #NULL == 0 - InvariantResult [Line: 140]: Loop Invariant Derived loop invariant: (((((((((((!(methaneLevelCritical <= 1) || !(\old(pumpRunning) == 0)) || !(#NULL == 0)) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(\old(waterLevel) <= 2147483647)) || !(head == 0)) || !(0 <= methaneLevelCritical)) || !(#NULL == 0)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(0 <= \old(waterLevel) + 2147483648)) || !(head == 0)) || !(cleanupTimeShifts == 4) - InvariantResult [Line: 346]: Loop Invariant Derived loop invariant: ((((((((((((!(methaneLevelCritical <= 1) || !(\old(pumpRunning) == 0)) || !(#NULL == 0)) || !(1 == systemActive)) || !(\old(waterLevel) <= 2147483647)) || !(head == 0)) || ((((((pumpRunning == 0 && retValue_acc == \result) && tmp == \result) && !(tmp == 0)) && 1 == systemActive) && \old(waterLevel) == waterLevel) && retValue_acc == waterLevel)) || ((((((((pumpRunning == 0 && retValue_acc == \result) && pumpRunning == retValue_acc) && tmp == \result) && \result == tmp___0) && 1 == systemActive) && \result == retValue_acc) && \old(waterLevel) == waterLevel) && retValue_acc == waterLevel)) || !(0 <= methaneLevelCritical)) || !(#NULL == 0)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(0 <= \old(waterLevel) + 2147483648)) || !(head == 0)) || !(cleanupTimeShifts == 4) - InvariantResult [Line: 180]: Loop Invariant Derived loop invariant: ((((((((((!(methaneLevelCritical <= 1) || !(\old(pumpRunning) == 0)) || !(#NULL == 0)) || !(1 == systemActive)) || !(\old(waterLevel) <= 2147483647)) || !(head == 0)) || !(0 <= methaneLevelCritical)) || !(#NULL == 0)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(0 <= \old(waterLevel) + 2147483648)) || !(head == 0)) || !(cleanupTimeShifts == 4) - InvariantResult [Line: 172]: Loop Invariant Derived loop invariant: (((((((((((!(methaneLevelCritical <= 1) || !(\old(pumpRunning) == 0)) || !(#NULL == 0)) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(\old(waterLevel) <= 2147483647)) || !(head == 0)) || !(0 <= methaneLevelCritical)) || !(#NULL == 0)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(0 <= \old(waterLevel) + 2147483648)) || !(head == 0)) || !(cleanupTimeShifts == 4) - InvariantResult [Line: 354]: Loop Invariant Derived loop invariant: (((((((((((!(methaneLevelCritical <= 1) || !(\old(pumpRunning) == 0)) || !(#NULL == 0)) || !(1 == systemActive)) || !(\old(waterLevel) <= 2147483647)) || !(head == 0)) || ((((pumpRunning == 0 && retValue_acc == \result) && tmp == \result) && \old(waterLevel) == waterLevel) && retValue_acc == waterLevel)) || !(0 <= methaneLevelCritical)) || !(#NULL == 0)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(0 <= \old(waterLevel) + 2147483648)) || !(head == 0)) || !(cleanupTimeShifts == 4) - InvariantResult [Line: 909]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 73]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((tmp___0 <= 2147483647 && 1 <= \result) && tmp___2 <= 2147483647) && pumpRunning == 0) && methaneLevelCritical <= 1) && 0 <= tmp___0 + 2147483648) && tmp <= 1) && retValue_acc == 1) && head == 0) && 1 == systemActive) && \result <= 1) && 0 <= waterLevel + 2147483648) && 0 <= tmp + 2147483648) && splverifierCounter == 0) && 0 <= methaneLevelCritical) && waterLevel <= 2147483647) && head == 0) && 1 <= tmp) && #NULL == 0) && 0 <= tmp___2 + 2147483648) && (!(tmp___2 == 0) || (tmp___1 <= 2147483647 && 0 <= tmp___1 + 2147483648))) && tmp <= 2147483647) && 0 <= unknown-#StackHeapBarrier-unknown) && cleanupTimeShifts == 4) && #NULL == 0) || (((((((((((((((((((((((((((((((((((((((((((((((unknown-#length-unknown[15] == 25 && 9 == unknown-#length-unknown[5]) && unknown-#length-unknown[9] == 21) && 30 == unknown-#length-unknown[7]) && 1 == \valid[5]) && unknown-#length-unknown[3] == 12) && \valid[15] == 1) && pumpRunning == 0) && \valid[9] == 1) && unknown-#length-unknown[12] == 25) && \valid[11] == 1) && methaneLevelCritical == 0) && 30 == unknown-#length-unknown[4]) && tmp <= 1) && retValue_acc == 1) && 31 == unknown-#length-unknown[2]) && head == 0) && 2 == unknown-#length-unknown[1]) && unknown-#length-unknown[8] == 9) && \valid[3] == 1) && \valid[7] == 1) && 30 == unknown-#length-unknown[13]) && 1 == systemActive) && 30 == unknown-#length-unknown[10]) && \valid[12] == 1) && splverifierCounter == 0) && \valid[4] == 1) && \valid[1] == 1) && unknown-#length-unknown[6] == 21) && retValue_acc == \result) && \valid[14] == 1) && 9 == unknown-#length-unknown[14]) && \valid[0] == 0) && head == 0) && 1 <= tmp) && \valid[2] == 1) && #NULL == 0) && 9 == unknown-#length-unknown[11]) && waterLevel == 1) && unknown-#memory_int-unknown[1][0] == 48) && \valid[6] == 1) && unknown-#memory_int-unknown[1][1] == 0) && \valid[10] == 1) && \valid[8] == 1) && \valid[13] == 1) && 0 < unknown-#StackHeapBarrier-unknown) && cleanupTimeShifts == 4) && #NULL == 0) - InvariantResult [Line: 63]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-19 08:09:45,063 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ce5edf9-70de-44a8-a4b9-d232fe42e488/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