./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product39.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0e0038-874f-472d-89f8-67ba3a8d3419/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0e0038-874f-472d-89f8-67ba3a8d3419/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_fe0e0038-874f-472d-89f8-67ba3a8d3419/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0e0038-874f-472d-89f8-67ba3a8d3419/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product39.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0e0038-874f-472d-89f8-67ba3a8d3419/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_fe0e0038-874f-472d-89f8-67ba3a8d3419/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 df3faf2d1bbcaed92e1c2eddcb5ae1d2459730e99808e363d537a0bc5d54e347 --- 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 08:19:33,016 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:19:33,019 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:19:33,066 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:19:33,068 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:19:33,070 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:19:33,073 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:19:33,078 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:19:33,081 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:19:33,086 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:19:33,088 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:19:33,090 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:19:33,092 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:19:33,095 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:19:33,097 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:19:33,099 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:19:33,100 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:19:33,106 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:19:33,108 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:19:33,110 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:19:33,117 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:19:33,119 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:19:33,120 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:19:33,123 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:19:33,129 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:19:33,134 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:19:33,135 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:19:33,136 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:19:33,138 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:19:33,139 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:19:33,140 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:19:33,141 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:19:33,143 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:19:33,145 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:19:33,146 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:19:33,146 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:19:33,147 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:19:33,148 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:19:33,148 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:19:33,149 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:19:33,150 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:19:33,151 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0e0038-874f-472d-89f8-67ba3a8d3419/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 08:19:33,198 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:19:33,198 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:19:33,199 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:19:33,199 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:19:33,200 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:19:33,201 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:19:33,201 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:19:33,201 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:19:33,202 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:19:33,202 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:19:33,203 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:19:33,204 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:19:33,204 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:19:33,204 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:19:33,205 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:19:33,205 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:19:33,205 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:19:33,206 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:19:33,207 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:19:33,207 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 08:19:33,207 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:19:33,208 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 08:19:33,208 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:19:33,208 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:19:33,209 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:19:33,209 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:19:33,209 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 08:19:33,209 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:19:33,210 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:19:33,210 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:19:33,210 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:19:33,211 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:19:33,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:19:33,212 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:19:33,212 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:19:33,212 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:19:33,213 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:19:33,213 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:19:33,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:19:33,214 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:19:33,214 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:19:33,214 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_fe0e0038-874f-472d-89f8-67ba3a8d3419/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0e0038-874f-472d-89f8-67ba3a8d3419/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df3faf2d1bbcaed92e1c2eddcb5ae1d2459730e99808e363d537a0bc5d54e347 [2022-11-19 08:19:33,585 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:19:33,622 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:19:33,625 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:19:33,626 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:19:33,627 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:19:33,629 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0e0038-874f-472d-89f8-67ba3a8d3419/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/product-lines/minepump_spec5_product39.cil.c [2022-11-19 08:19:33,714 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0e0038-874f-472d-89f8-67ba3a8d3419/bin/utaipan-I9t0OCRTmS/data/86986c5d4/a6d06fd9078541f08aa719f33e0d7ee6/FLAGeb1aec1f9 [2022-11-19 08:19:34,392 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:19:34,410 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0e0038-874f-472d-89f8-67ba3a8d3419/sv-benchmarks/c/product-lines/minepump_spec5_product39.cil.c [2022-11-19 08:19:34,427 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0e0038-874f-472d-89f8-67ba3a8d3419/bin/utaipan-I9t0OCRTmS/data/86986c5d4/a6d06fd9078541f08aa719f33e0d7ee6/FLAGeb1aec1f9 [2022-11-19 08:19:34,631 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0e0038-874f-472d-89f8-67ba3a8d3419/bin/utaipan-I9t0OCRTmS/data/86986c5d4/a6d06fd9078541f08aa719f33e0d7ee6 [2022-11-19 08:19:34,635 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:19:34,638 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:19:34,643 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:19:34,643 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:19:34,648 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:19:34,649 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:19:34" (1/1) ... [2022-11-19 08:19:34,651 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@607b9173 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:34, skipping insertion in model container [2022-11-19 08:19:34,652 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:19:34" (1/1) ... [2022-11-19 08:19:34,660 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:19:34,726 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:19:35,020 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_fe0e0038-874f-472d-89f8-67ba3a8d3419/sv-benchmarks/c/product-lines/minepump_spec5_product39.cil.c[1605,1618] [2022-11-19 08:19:35,149 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:19:35,159 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:19:35,174 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_fe0e0038-874f-472d-89f8-67ba3a8d3419/sv-benchmarks/c/product-lines/minepump_spec5_product39.cil.c[1605,1618] [2022-11-19 08:19:35,233 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:19:35,252 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:19:35,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:35 WrapperNode [2022-11-19 08:19:35,253 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:19:35,254 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:19:35,254 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:19:35,255 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:19:35,263 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:35" (1/1) ... [2022-11-19 08:19:35,284 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:35" (1/1) ... [2022-11-19 08:19:35,335 INFO L138 Inliner]: procedures = 56, calls = 102, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 203 [2022-11-19 08:19:35,339 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:19:35,341 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:19:35,341 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:19:35,341 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:19:35,352 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:35" (1/1) ... [2022-11-19 08:19:35,352 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:35" (1/1) ... [2022-11-19 08:19:35,354 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:35" (1/1) ... [2022-11-19 08:19:35,354 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:35" (1/1) ... [2022-11-19 08:19:35,367 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:35" (1/1) ... [2022-11-19 08:19:35,380 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:35" (1/1) ... [2022-11-19 08:19:35,393 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:35" (1/1) ... [2022-11-19 08:19:35,395 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:35" (1/1) ... [2022-11-19 08:19:35,397 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:19:35,398 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:19:35,398 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:19:35,398 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:19:35,399 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:35" (1/1) ... [2022-11-19 08:19:35,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:19:35,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0e0038-874f-472d-89f8-67ba3a8d3419/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:19:35,443 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0e0038-874f-472d-89f8-67ba3a8d3419/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:19:35,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0e0038-874f-472d-89f8-67ba3a8d3419/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:19:35,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:19:35,499 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-19 08:19:35,500 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-19 08:19:35,500 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-19 08:19:35,500 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-19 08:19:35,500 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-19 08:19:35,500 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-19 08:19:35,501 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-11-19 08:19:35,501 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-11-19 08:19:35,501 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-19 08:19:35,501 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-19 08:19:35,501 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2022-11-19 08:19:35,502 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2022-11-19 08:19:35,502 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-11-19 08:19:35,502 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-11-19 08:19:35,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:19:35,502 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-19 08:19:35,502 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-19 08:19:35,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:19:35,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:19:35,638 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:19:35,660 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:19:36,085 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:19:36,192 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:19:36,192 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-19 08:19:36,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:19:36 BoogieIcfgContainer [2022-11-19 08:19:36,195 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:19:36,198 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:19:36,198 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:19:36,203 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:19:36,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:19:34" (1/3) ... [2022-11-19 08:19:36,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@899593b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:19:36, skipping insertion in model container [2022-11-19 08:19:36,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:35" (2/3) ... [2022-11-19 08:19:36,205 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@899593b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:19:36, skipping insertion in model container [2022-11-19 08:19:36,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:19:36" (3/3) ... [2022-11-19 08:19:36,207 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product39.cil.c [2022-11-19 08:19:36,251 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:19:36,252 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 08:19:36,337 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:19:36,345 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;@3bc809cc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:19:36,346 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 08:19:36,349 INFO L276 IsEmpty]: Start isEmpty. Operand has 66 states, 42 states have (on average 1.4523809523809523) internal successors, (61), 51 states have internal predecessors, (61), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2022-11-19 08:19:36,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-19 08:19:36,357 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:19:36,358 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:19:36,358 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:19:36,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:19:36,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1541196640, now seen corresponding path program 1 times [2022-11-19 08:19:36,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:19:36,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139601287] [2022-11-19 08:19:36,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:19:36,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:19:36,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:19:36,610 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 08:19:36,611 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:19:36,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139601287] [2022-11-19 08:19:36,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139601287] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:19:36,612 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:19:36,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:19:36,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099575927] [2022-11-19 08:19:36,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:19:36,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 08:19:36,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:19:36,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 08:19:36,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 08:19:36,653 INFO L87 Difference]: Start difference. First operand has 66 states, 42 states have (on average 1.4523809523809523) internal successors, (61), 51 states have internal predecessors, (61), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 08:19:36,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:19:36,772 INFO L93 Difference]: Finished difference Result 130 states and 179 transitions. [2022-11-19 08:19:36,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 08:19:36,775 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2022-11-19 08:19:36,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:19:36,785 INFO L225 Difference]: With dead ends: 130 [2022-11-19 08:19:36,786 INFO L226 Difference]: Without dead ends: 61 [2022-11-19 08:19:36,790 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 08:19:36,795 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:19:36,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 69 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:19:36,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-11-19 08:19:36,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2022-11-19 08:19:36,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 39 states have (on average 1.358974358974359) internal successors, (53), 47 states have internal predecessors, (53), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-19 08:19:36,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 80 transitions. [2022-11-19 08:19:36,850 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 80 transitions. Word has length 21 [2022-11-19 08:19:36,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:19:36,851 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 80 transitions. [2022-11-19 08:19:36,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 08:19:36,852 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 80 transitions. [2022-11-19 08:19:36,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-19 08:19:36,854 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:19:36,854 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:19:36,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:19:36,855 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:19:36,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:19:36,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1038455851, now seen corresponding path program 1 times [2022-11-19 08:19:36,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:19:36,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309811577] [2022-11-19 08:19:36,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:19:36,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:19:36,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:19:36,974 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 08:19:36,974 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:19:36,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309811577] [2022-11-19 08:19:36,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309811577] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:19:36,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:19:36,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:19:36,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776420678] [2022-11-19 08:19:36,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:19:36,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:19:36,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:19:36,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:19:36,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:19:36,989 INFO L87 Difference]: Start difference. First operand 61 states and 80 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 08:19:37,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:19:37,071 INFO L93 Difference]: Finished difference Result 94 states and 122 transitions. [2022-11-19 08:19:37,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:19:37,074 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2022-11-19 08:19:37,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:19:37,076 INFO L225 Difference]: With dead ends: 94 [2022-11-19 08:19:37,078 INFO L226 Difference]: Without dead ends: 53 [2022-11-19 08:19:37,079 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 08:19:37,082 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 14 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:19:37,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 93 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:19:37,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-11-19 08:19:37,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2022-11-19 08:19:37,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 34 states have (on average 1.3823529411764706) internal successors, (47), 42 states have internal predecessors, (47), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 8 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-19 08:19:37,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 69 transitions. [2022-11-19 08:19:37,101 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 69 transitions. Word has length 22 [2022-11-19 08:19:37,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:19:37,102 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 69 transitions. [2022-11-19 08:19:37,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 08:19:37,103 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 69 transitions. [2022-11-19 08:19:37,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-19 08:19:37,107 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:19:37,108 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:19:37,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 08:19:37,109 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:19:37,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:19:37,115 INFO L85 PathProgramCache]: Analyzing trace with hash -2135358164, now seen corresponding path program 1 times [2022-11-19 08:19:37,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:19:37,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108862433] [2022-11-19 08:19:37,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:19:37,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:19:37,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:19:37,224 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 08:19:37,225 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:19:37,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108862433] [2022-11-19 08:19:37,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108862433] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:19:37,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:19:37,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:19:37,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112042970] [2022-11-19 08:19:37,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:19:37,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:19:37,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:19:37,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:19:37,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:19:37,228 INFO L87 Difference]: Start difference. First operand 53 states and 69 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-19 08:19:37,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:19:37,299 INFO L93 Difference]: Finished difference Result 155 states and 204 transitions. [2022-11-19 08:19:37,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:19:37,300 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2022-11-19 08:19:37,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:19:37,302 INFO L225 Difference]: With dead ends: 155 [2022-11-19 08:19:37,303 INFO L226 Difference]: Without dead ends: 104 [2022-11-19 08:19:37,303 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 08:19:37,305 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 54 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:19:37,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 127 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:19:37,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2022-11-19 08:19:37,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 101. [2022-11-19 08:19:37,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 64 states have (on average 1.390625) internal successors, (89), 79 states have internal predecessors, (89), 22 states have call successors, (22), 14 states have call predecessors, (22), 14 states have return successors, (22), 15 states have call predecessors, (22), 22 states have call successors, (22) [2022-11-19 08:19:37,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 133 transitions. [2022-11-19 08:19:37,324 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 133 transitions. Word has length 25 [2022-11-19 08:19:37,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:19:37,324 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 133 transitions. [2022-11-19 08:19:37,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-19 08:19:37,325 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 133 transitions. [2022-11-19 08:19:37,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-19 08:19:37,326 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:19:37,327 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:19:37,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 08:19:37,327 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:19:37,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:19:37,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1526516562, now seen corresponding path program 1 times [2022-11-19 08:19:37,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:19:37,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585275953] [2022-11-19 08:19:37,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:19:37,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:19:37,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:19:37,567 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 08:19:37,567 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:19:37,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585275953] [2022-11-19 08:19:37,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585275953] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:19:37,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:19:37,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 08:19:37,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936335896] [2022-11-19 08:19:37,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:19:37,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 08:19:37,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:19:37,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 08:19:37,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:19:37,570 INFO L87 Difference]: Start difference. First operand 101 states and 133 transitions. Second operand has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 08:19:37,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:19:37,812 INFO L93 Difference]: Finished difference Result 282 states and 381 transitions. [2022-11-19 08:19:37,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-19 08:19:37,813 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2022-11-19 08:19:37,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:19:37,823 INFO L225 Difference]: With dead ends: 282 [2022-11-19 08:19:37,824 INFO L226 Difference]: Without dead ends: 183 [2022-11-19 08:19:37,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-19 08:19:37,832 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 35 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:19:37,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 284 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 08:19:37,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2022-11-19 08:19:37,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 174. [2022-11-19 08:19:37,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 115 states have (on average 1.3130434782608695) internal successors, (151), 130 states have internal predecessors, (151), 32 states have call successors, (32), 26 states have call predecessors, (32), 26 states have return successors, (40), 29 states have call predecessors, (40), 32 states have call successors, (40) [2022-11-19 08:19:37,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 223 transitions. [2022-11-19 08:19:37,884 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 223 transitions. Word has length 28 [2022-11-19 08:19:37,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:19:37,884 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 223 transitions. [2022-11-19 08:19:37,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 08:19:37,884 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 223 transitions. [2022-11-19 08:19:37,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-19 08:19:37,886 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:19:37,891 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:19:37,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 08:19:37,891 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:19:37,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:19:37,892 INFO L85 PathProgramCache]: Analyzing trace with hash 958213121, now seen corresponding path program 1 times [2022-11-19 08:19:37,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:19:37,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121825874] [2022-11-19 08:19:37,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:19:37,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:19:37,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:19:38,454 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 08:19:38,454 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:19:38,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121825874] [2022-11-19 08:19:38,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121825874] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:19:38,455 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:19:38,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 08:19:38,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478235956] [2022-11-19 08:19:38,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:19:38,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 08:19:38,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:19:38,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 08:19:38,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:19:38,466 INFO L87 Difference]: Start difference. First operand 174 states and 223 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-19 08:19:38,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:19:38,744 INFO L93 Difference]: Finished difference Result 503 states and 647 transitions. [2022-11-19 08:19:38,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 08:19:38,752 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 33 [2022-11-19 08:19:38,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:19:38,763 INFO L225 Difference]: With dead ends: 503 [2022-11-19 08:19:38,763 INFO L226 Difference]: Without dead ends: 331 [2022-11-19 08:19:38,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-11-19 08:19:38,768 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 115 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:19:38,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 247 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 08:19:38,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2022-11-19 08:19:38,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 318. [2022-11-19 08:19:38,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 212 states have (on average 1.2924528301886793) internal successors, (274), 235 states have internal predecessors, (274), 57 states have call successors, (57), 47 states have call predecessors, (57), 48 states have return successors, (74), 52 states have call predecessors, (74), 57 states have call successors, (74) [2022-11-19 08:19:38,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 405 transitions. [2022-11-19 08:19:38,854 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 405 transitions. Word has length 33 [2022-11-19 08:19:38,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:19:38,855 INFO L495 AbstractCegarLoop]: Abstraction has 318 states and 405 transitions. [2022-11-19 08:19:38,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-19 08:19:38,855 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 405 transitions. [2022-11-19 08:19:38,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-19 08:19:38,866 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:19:38,866 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:19:38,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 08:19:38,867 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:19:38,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:19:38,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1510406170, now seen corresponding path program 1 times [2022-11-19 08:19:38,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:19:38,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071100598] [2022-11-19 08:19:38,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:19:38,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:19:38,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:19:39,235 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 08:19:39,235 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:19:39,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071100598] [2022-11-19 08:19:39,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071100598] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:19:39,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:19:39,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-19 08:19:39,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234775833] [2022-11-19 08:19:39,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:19:39,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 08:19:39,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:19:39,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 08:19:39,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:19:39,238 INFO L87 Difference]: Start difference. First operand 318 states and 405 transitions. Second operand has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 4 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-19 08:19:39,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:19:39,780 INFO L93 Difference]: Finished difference Result 798 states and 1039 transitions. [2022-11-19 08:19:39,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-19 08:19:39,780 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 4 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 36 [2022-11-19 08:19:39,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:19:39,785 INFO L225 Difference]: With dead ends: 798 [2022-11-19 08:19:39,785 INFO L226 Difference]: Without dead ends: 556 [2022-11-19 08:19:39,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2022-11-19 08:19:39,787 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 220 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:19:39,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 256 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-19 08:19:39,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2022-11-19 08:19:39,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 514. [2022-11-19 08:19:39,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 346 states have (on average 1.2919075144508672) internal successors, (447), 384 states have internal predecessors, (447), 90 states have call successors, (90), 68 states have call predecessors, (90), 77 states have return successors, (121), 87 states have call predecessors, (121), 90 states have call successors, (121) [2022-11-19 08:19:39,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 658 transitions. [2022-11-19 08:19:39,862 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 658 transitions. Word has length 36 [2022-11-19 08:19:39,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:19:39,862 INFO L495 AbstractCegarLoop]: Abstraction has 514 states and 658 transitions. [2022-11-19 08:19:39,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 4 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-19 08:19:39,863 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 658 transitions. [2022-11-19 08:19:39,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-19 08:19:39,866 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:19:39,866 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:19:39,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 08:19:39,866 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:19:39,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:19:39,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1071944550, now seen corresponding path program 1 times [2022-11-19 08:19:39,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:19:39,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342907054] [2022-11-19 08:19:39,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:19:39,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:19:39,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:19:39,932 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-19 08:19:39,932 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:19:39,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342907054] [2022-11-19 08:19:39,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342907054] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:19:39,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:19:39,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:19:39,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677237886] [2022-11-19 08:19:39,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:19:39,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:19:39,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:19:39,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:19:39,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:19:39,935 INFO L87 Difference]: Start difference. First operand 514 states and 658 transitions. Second operand has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2022-11-19 08:19:40,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:19:40,068 INFO L93 Difference]: Finished difference Result 620 states and 792 transitions. [2022-11-19 08:19:40,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:19:40,068 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) Word has length 57 [2022-11-19 08:19:40,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:19:40,070 INFO L225 Difference]: With dead ends: 620 [2022-11-19 08:19:40,070 INFO L226 Difference]: Without dead ends: 247 [2022-11-19 08:19:40,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:19:40,073 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 94 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:19:40,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 128 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:19:40,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2022-11-19 08:19:40,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 247. [2022-11-19 08:19:40,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 167 states have (on average 1.2395209580838322) internal successors, (207), 184 states have internal predecessors, (207), 42 states have call successors, (42), 32 states have call predecessors, (42), 37 states have return successors, (57), 42 states have call predecessors, (57), 42 states have call successors, (57) [2022-11-19 08:19:40,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 306 transitions. [2022-11-19 08:19:40,126 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 306 transitions. Word has length 57 [2022-11-19 08:19:40,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:19:40,126 INFO L495 AbstractCegarLoop]: Abstraction has 247 states and 306 transitions. [2022-11-19 08:19:40,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2022-11-19 08:19:40,127 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 306 transitions. [2022-11-19 08:19:40,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-19 08:19:40,129 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:19:40,129 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:19:40,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 08:19:40,129 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:19:40,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:19:40,130 INFO L85 PathProgramCache]: Analyzing trace with hash -1124819293, now seen corresponding path program 1 times [2022-11-19 08:19:40,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:19:40,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183636127] [2022-11-19 08:19:40,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:19:40,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:19:40,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:19:40,271 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 8 proven. 11 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-19 08:19:40,271 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:19:40,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183636127] [2022-11-19 08:19:40,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183636127] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:19:40,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1314874554] [2022-11-19 08:19:40,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:19:40,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:19:40,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0e0038-874f-472d-89f8-67ba3a8d3419/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:19:40,276 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0e0038-874f-472d-89f8-67ba3a8d3419/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:19:40,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0e0038-874f-472d-89f8-67ba3a8d3419/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 08:19:40,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:19:40,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 08:19:40,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:19:40,489 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:19:40,489 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:19:40,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1314874554] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:19:40,490 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 08:19:40,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-11-19 08:19:40,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870071736] [2022-11-19 08:19:40,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:19:40,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:19:40,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:19:40,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:19:40,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:19:40,492 INFO L87 Difference]: Start difference. First operand 247 states and 306 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-19 08:19:40,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:19:40,566 INFO L93 Difference]: Finished difference Result 369 states and 461 transitions. [2022-11-19 08:19:40,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:19:40,567 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 62 [2022-11-19 08:19:40,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:19:40,569 INFO L225 Difference]: With dead ends: 369 [2022-11-19 08:19:40,569 INFO L226 Difference]: Without dead ends: 237 [2022-11-19 08:19:40,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:19:40,570 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 30 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:19:40,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 113 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:19:40,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2022-11-19 08:19:40,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 237. [2022-11-19 08:19:40,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 160 states have (on average 1.2125) internal successors, (194), 176 states have internal predecessors, (194), 40 states have call successors, (40), 32 states have call predecessors, (40), 36 states have return successors, (47), 40 states have call predecessors, (47), 40 states have call successors, (47) [2022-11-19 08:19:40,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 281 transitions. [2022-11-19 08:19:40,632 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 281 transitions. Word has length 62 [2022-11-19 08:19:40,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:19:40,633 INFO L495 AbstractCegarLoop]: Abstraction has 237 states and 281 transitions. [2022-11-19 08:19:40,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-19 08:19:40,633 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 281 transitions. [2022-11-19 08:19:40,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-19 08:19:40,634 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:19:40,635 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:19:40,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0e0038-874f-472d-89f8-67ba3a8d3419/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 08:19:40,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0e0038-874f-472d-89f8-67ba3a8d3419/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-19 08:19:40,841 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:19:40,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:19:40,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1077474185, now seen corresponding path program 1 times [2022-11-19 08:19:40,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:19:40,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673121421] [2022-11-19 08:19:40,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:19:40,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:19:40,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:19:41,038 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 5 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-19 08:19:41,039 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:19:41,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673121421] [2022-11-19 08:19:41,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673121421] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:19:41,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [627097737] [2022-11-19 08:19:41,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:19:41,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:19:41,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0e0038-874f-472d-89f8-67ba3a8d3419/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:19:41,041 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0e0038-874f-472d-89f8-67ba3a8d3419/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:19:41,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0e0038-874f-472d-89f8-67ba3a8d3419/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 08:19:41,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:19:41,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-19 08:19:41,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:19:41,263 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 19 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:19:41,264 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:19:41,487 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-19 08:19:41,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [627097737] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:19:41,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1737079018] [2022-11-19 08:19:41,516 INFO L159 IcfgInterpreter]: Started Sifa with 42 locations of interest [2022-11-19 08:19:41,516 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:19:41,521 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:19:41,528 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:19:41,529 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:19:44,933 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 126 for LOIs [2022-11-19 08:19:44,957 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 29 for LOIs [2022-11-19 08:19:45,304 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 53 for LOIs [2022-11-19 08:19:45,317 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 64 for LOIs [2022-11-19 08:19:45,655 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 40 for LOIs [2022-11-19 08:19:45,660 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:19:53,683 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '7809#(and (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 0)) (<= 0 (+ 2147483648 |old(~pumpRunning~0)|)) (= ~head~0.offset 0) (= |timeShift_getWaterLevel_~retValue_acc~10#1| ~waterLevel~0) (<= |old(~pumpRunning~0)| 2147483647) (= 1 ~systemActive~0) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~5#1| 2)) (<= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1|) (<= 0 ~head~0.base) (<= 0 ~methaneLevelCritical~0) (<= 0 (+ |timeShift_getWaterLevel_~retValue_acc~10#1| 2147483648)) (<= ~head~0.base 0) (= |#NULL.offset| 0) (= |timeShift___utac_acc__Specification5_spec__3_~tmp~5#1| |timeShift_getWaterLevel_#res#1|) (<= 0 (+ |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 2147483648)) (<= |timeShift_getWaterLevel_~retValue_acc~10#1| 2147483647) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 2147483647) (= |timeShift_getWaterLevel_~retValue_acc~10#1| |timeShift_getWaterLevel_#res#1|) (= ~switchedOnBeforeTS~0 0) (<= 0 |#StackHeapBarrier|) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-11-19 08:19:53,683 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 08:19:53,683 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 08:19:53,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6, 6] total 15 [2022-11-19 08:19:53,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3790782] [2022-11-19 08:19:53,684 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 08:19:53,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-19 08:19:53,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:19:53,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-19 08:19:53,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=278, Invalid=1884, Unknown=0, NotChecked=0, Total=2162 [2022-11-19 08:19:53,686 INFO L87 Difference]: Start difference. First operand 237 states and 281 transitions. Second operand has 15 states, 12 states have (on average 7.333333333333333) internal successors, (88), 13 states have internal predecessors, (88), 7 states have call successors, (20), 4 states have call predecessors, (20), 8 states have return successors, (18), 9 states have call predecessors, (18), 7 states have call successors, (18) [2022-11-19 08:19:54,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:19:54,448 INFO L93 Difference]: Finished difference Result 308 states and 374 transitions. [2022-11-19 08:19:54,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-19 08:19:54,449 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 7.333333333333333) internal successors, (88), 13 states have internal predecessors, (88), 7 states have call successors, (20), 4 states have call predecessors, (20), 8 states have return successors, (18), 9 states have call predecessors, (18), 7 states have call successors, (18) Word has length 65 [2022-11-19 08:19:54,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:19:54,454 INFO L225 Difference]: With dead ends: 308 [2022-11-19 08:19:54,454 INFO L226 Difference]: Without dead ends: 306 [2022-11-19 08:19:54,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 159 SyntacticMatches, 5 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1237 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=450, Invalid=3210, Unknown=0, NotChecked=0, Total=3660 [2022-11-19 08:19:54,458 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 202 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:19:54,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 544 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-19 08:19:54,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2022-11-19 08:19:54,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 285. [2022-11-19 08:19:54,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 191 states have (on average 1.2041884816753927) internal successors, (230), 212 states have internal predecessors, (230), 49 states have call successors, (49), 40 states have call predecessors, (49), 44 states have return successors, (60), 48 states have call predecessors, (60), 49 states have call successors, (60) [2022-11-19 08:19:54,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 339 transitions. [2022-11-19 08:19:54,499 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 339 transitions. Word has length 65 [2022-11-19 08:19:54,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:19:54,501 INFO L495 AbstractCegarLoop]: Abstraction has 285 states and 339 transitions. [2022-11-19 08:19:54,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 7.333333333333333) internal successors, (88), 13 states have internal predecessors, (88), 7 states have call successors, (20), 4 states have call predecessors, (20), 8 states have return successors, (18), 9 states have call predecessors, (18), 7 states have call successors, (18) [2022-11-19 08:19:54,502 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 339 transitions. [2022-11-19 08:19:54,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-19 08:19:54,504 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:19:54,504 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:19:54,515 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0e0038-874f-472d-89f8-67ba3a8d3419/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 08:19:54,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0e0038-874f-472d-89f8-67ba3a8d3419/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:19:54,710 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:19:54,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:19:54,711 INFO L85 PathProgramCache]: Analyzing trace with hash -731455868, now seen corresponding path program 1 times [2022-11-19 08:19:54,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:19:54,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305845517] [2022-11-19 08:19:54,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:19:54,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:19:54,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:19:55,009 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 35 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-19 08:19:55,009 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:19:55,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305845517] [2022-11-19 08:19:55,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305845517] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:19:55,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [881274385] [2022-11-19 08:19:55,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:19:55,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:19:55,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0e0038-874f-472d-89f8-67ba3a8d3419/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:19:55,012 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0e0038-874f-472d-89f8-67ba3a8d3419/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:19:55,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0e0038-874f-472d-89f8-67ba3a8d3419/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 08:19:55,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:19:55,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-19 08:19:55,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:19:55,380 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 61 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-19 08:19:55,380 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:19:55,756 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 48 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-19 08:19:55,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [881274385] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:19:55,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1165137537] [2022-11-19 08:19:55,759 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2022-11-19 08:19:55,759 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:19:55,760 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:19:55,760 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:19:55,760 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:19:58,241 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 128 for LOIs [2022-11-19 08:19:58,262 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 30 for LOIs [2022-11-19 08:19:58,614 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 56 for LOIs [2022-11-19 08:19:58,635 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 26 for LOIs [2022-11-19 08:19:58,660 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:20:05,222 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '9297#(and (= ~methaneLevelCritical~0 0) (= ~head~0.offset 0) (= |timeShift_getWaterLevel_~retValue_acc~10#1| ~waterLevel~0) (= 1 ~systemActive~0) (= |old(~pumpRunning~0)| 0) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~5#1| 2)) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1|) (= |old(~waterLevel~0)| ~waterLevel~0) (= ~head~0.base 0) (= |#NULL.offset| 0) (= |timeShift___utac_acc__Specification5_spec__3_~tmp~5#1| |timeShift_getWaterLevel_#res#1|) (<= |timeShift_getWaterLevel_~retValue_acc~10#1| 2147483647) (= |timeShift_getWaterLevel_~retValue_acc~10#1| |timeShift_getWaterLevel_#res#1|) (= ~switchedOnBeforeTS~0 0) (<= 0 |#StackHeapBarrier|) (<= 2 |timeShift_getWaterLevel_~retValue_acc~10#1|) (= ~pumpRunning~0 1) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-11-19 08:20:05,222 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 08:20:05,222 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 08:20:05,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 9] total 20 [2022-11-19 08:20:05,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950775876] [2022-11-19 08:20:05,223 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 08:20:05,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-19 08:20:05,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:20:05,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-19 08:20:05,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=280, Invalid=1976, Unknown=0, NotChecked=0, Total=2256 [2022-11-19 08:20:05,226 INFO L87 Difference]: Start difference. First operand 285 states and 339 transitions. Second operand has 20 states, 20 states have (on average 5.35) internal successors, (107), 20 states have internal predecessors, (107), 9 states have call successors, (21), 5 states have call predecessors, (21), 8 states have return successors, (22), 10 states have call predecessors, (22), 9 states have call successors, (22) [2022-11-19 08:20:07,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:20:07,084 INFO L93 Difference]: Finished difference Result 848 states and 1107 transitions. [2022-11-19 08:20:07,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-19 08:20:07,085 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.35) internal successors, (107), 20 states have internal predecessors, (107), 9 states have call successors, (21), 5 states have call predecessors, (21), 8 states have return successors, (22), 10 states have call predecessors, (22), 9 states have call successors, (22) Word has length 86 [2022-11-19 08:20:07,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:20:07,089 INFO L225 Difference]: With dead ends: 848 [2022-11-19 08:20:07,089 INFO L226 Difference]: Without dead ends: 557 [2022-11-19 08:20:07,094 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 233 SyntacticMatches, 5 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2046 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=656, Invalid=4894, Unknown=0, NotChecked=0, Total=5550 [2022-11-19 08:20:07,094 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 491 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 1182 mSolverCounterSat, 279 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 494 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 1461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 279 IncrementalHoareTripleChecker+Valid, 1182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-19 08:20:07,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [494 Valid, 614 Invalid, 1461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [279 Valid, 1182 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-19 08:20:07,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2022-11-19 08:20:07,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 346. [2022-11-19 08:20:07,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 233 states have (on average 1.167381974248927) internal successors, (272), 255 states have internal predecessors, (272), 56 states have call successors, (56), 50 states have call predecessors, (56), 56 states have return successors, (71), 57 states have call predecessors, (71), 56 states have call successors, (71) [2022-11-19 08:20:07,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 399 transitions. [2022-11-19 08:20:07,151 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 399 transitions. Word has length 86 [2022-11-19 08:20:07,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:20:07,152 INFO L495 AbstractCegarLoop]: Abstraction has 346 states and 399 transitions. [2022-11-19 08:20:07,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.35) internal successors, (107), 20 states have internal predecessors, (107), 9 states have call successors, (21), 5 states have call predecessors, (21), 8 states have return successors, (22), 10 states have call predecessors, (22), 9 states have call successors, (22) [2022-11-19 08:20:07,152 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 399 transitions. [2022-11-19 08:20:07,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-19 08:20:07,154 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:20:07,154 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:20:07,165 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0e0038-874f-472d-89f8-67ba3a8d3419/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-19 08:20:07,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0e0038-874f-472d-89f8-67ba3a8d3419/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-19 08:20:07,360 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:20:07,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:20:07,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1080808183, now seen corresponding path program 1 times [2022-11-19 08:20:07,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:20:07,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705816244] [2022-11-19 08:20:07,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:20:07,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:20:07,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:20:08,455 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 15 proven. 42 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-19 08:20:08,456 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:20:08,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705816244] [2022-11-19 08:20:08,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705816244] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:20:08,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1267968432] [2022-11-19 08:20:08,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:20:08,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:20:08,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0e0038-874f-472d-89f8-67ba3a8d3419/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:20:08,458 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0e0038-874f-472d-89f8-67ba3a8d3419/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:20:08,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0e0038-874f-472d-89f8-67ba3a8d3419/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 08:20:08,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:20:08,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-19 08:20:08,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:20:09,116 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 23 proven. 54 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 08:20:09,116 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:20:09,827 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 52 proven. 5 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-19 08:20:09,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1267968432] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:20:09,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1958393659] [2022-11-19 08:20:09,830 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2022-11-19 08:20:09,830 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:20:09,831 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:20:09,831 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:20:09,831 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:20:12,756 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 55 for LOIs [2022-11-19 08:20:12,769 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 49 for LOIs [2022-11-19 08:20:13,387 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 42 for LOIs [2022-11-19 08:20:13,394 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 26 for LOIs [2022-11-19 08:20:13,415 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:20:20,105 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '11760#(and (= ~head~0.offset 0) (<= 1 ~systemActive~0) (= |timeShift_getWaterLevel_~retValue_acc~10#1| ~waterLevel~0) (<= |#NULL.offset| 0) (= |old(~pumpRunning~0)| 0) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~5#1| 2)) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 1) (<= ~methaneLevelCritical~0 0) (<= 0 ~head~0.base) (<= 0 ~methaneLevelCritical~0) (= |old(~waterLevel~0)| ~waterLevel~0) (<= 1 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1|) (<= ~head~0.base 0) (= |timeShift___utac_acc__Specification5_spec__3_~tmp~5#1| |timeShift_getWaterLevel_#res#1|) (<= 0 |#NULL.offset|) (<= |timeShift_getWaterLevel_~retValue_acc~10#1| 2147483647) (= |timeShift_getWaterLevel_~retValue_acc~10#1| |timeShift_getWaterLevel_#res#1|) (= ~switchedOnBeforeTS~0 0) (<= 0 |#StackHeapBarrier|) (<= 2 |timeShift_getWaterLevel_~retValue_acc~10#1|) (= ~pumpRunning~0 1) (<= ~systemActive~0 1) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-11-19 08:20:20,105 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 08:20:20,105 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 08:20:20,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 13, 11] total 36 [2022-11-19 08:20:20,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553571271] [2022-11-19 08:20:20,106 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 08:20:20,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-11-19 08:20:20,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:20:20,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-11-19 08:20:20,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=514, Invalid=3518, Unknown=0, NotChecked=0, Total=4032 [2022-11-19 08:20:20,109 INFO L87 Difference]: Start difference. First operand 346 states and 399 transitions. Second operand has 36 states, 35 states have (on average 4.828571428571428) internal successors, (169), 36 states have internal predecessors, (169), 19 states have call successors, (34), 9 states have call predecessors, (34), 13 states have return successors, (31), 19 states have call predecessors, (31), 18 states have call successors, (31) [2022-11-19 08:20:23,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:20:23,523 INFO L93 Difference]: Finished difference Result 857 states and 1019 transitions. [2022-11-19 08:20:23,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-11-19 08:20:23,524 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 4.828571428571428) internal successors, (169), 36 states have internal predecessors, (169), 19 states have call successors, (34), 9 states have call predecessors, (34), 13 states have return successors, (31), 19 states have call predecessors, (31), 18 states have call successors, (31) Word has length 91 [2022-11-19 08:20:23,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:20:23,525 INFO L225 Difference]: With dead ends: 857 [2022-11-19 08:20:23,525 INFO L226 Difference]: Without dead ends: 0 [2022-11-19 08:20:23,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 247 SyntacticMatches, 9 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4018 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=1527, Invalid=9603, Unknown=0, NotChecked=0, Total=11130 [2022-11-19 08:20:23,530 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 1908 mSDsluCounter, 727 mSDsCounter, 0 mSdLazyCounter, 1459 mSolverCounterSat, 1295 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1908 SdHoareTripleChecker+Valid, 848 SdHoareTripleChecker+Invalid, 2754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1295 IncrementalHoareTripleChecker+Valid, 1459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:20:23,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1908 Valid, 848 Invalid, 2754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1295 Valid, 1459 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-19 08:20:23,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-19 08:20:23,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-19 08:20:23,532 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 08:20:23,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-19 08:20:23,532 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 91 [2022-11-19 08:20:23,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:20:23,532 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-19 08:20:23,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 4.828571428571428) internal successors, (169), 36 states have internal predecessors, (169), 19 states have call successors, (34), 9 states have call predecessors, (34), 13 states have return successors, (31), 19 states have call predecessors, (31), 18 states have call successors, (31) [2022-11-19 08:20:23,533 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-19 08:20:23,533 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-19 08:20:23,535 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 08:20:23,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0e0038-874f-472d-89f8-67ba3a8d3419/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-19 08:20:23,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0e0038-874f-472d-89f8-67ba3a8d3419/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:20:23,749 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-19 08:20:30,522 INFO L895 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 206 213) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (not (<= 1 ~switchedOnBeforeTS~0))) (.cse3 (= ~pumpRunning~0 1))) (and (or (not (<= ~waterLevel~0 0)) .cse0 .cse1 .cse2 .cse3) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2 .cse3))) [2022-11-19 08:20:30,522 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 206 213) no Hoare annotation was computed. [2022-11-19 08:20:30,523 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 139 145) no Hoare annotation was computed. [2022-11-19 08:20:30,523 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 139 145) the Hoare annotation is: true [2022-11-19 08:20:30,523 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 915 926) the Hoare annotation is: true [2022-11-19 08:20:30,523 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 915 926) no Hoare annotation was computed. [2022-11-19 08:20:30,523 INFO L899 garLoopResultBuilder]: For program point L320(lines 320 324) no Hoare annotation was computed. [2022-11-19 08:20:30,524 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 306 335) no Hoare annotation was computed. [2022-11-19 08:20:30,524 INFO L902 garLoopResultBuilder]: At program point L320-1(lines 320 324) the Hoare annotation is: true [2022-11-19 08:20:30,524 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 306 335) the Hoare annotation is: true [2022-11-19 08:20:30,524 INFO L902 garLoopResultBuilder]: At program point L316-2(lines 316 330) the Hoare annotation is: true [2022-11-19 08:20:30,524 INFO L902 garLoopResultBuilder]: At program point L312(line 312) the Hoare annotation is: true [2022-11-19 08:20:30,524 INFO L899 garLoopResultBuilder]: For program point L312-1(line 312) no Hoare annotation was computed. [2022-11-19 08:20:30,524 INFO L902 garLoopResultBuilder]: At program point L331(lines 306 335) the Hoare annotation is: true [2022-11-19 08:20:30,525 INFO L899 garLoopResultBuilder]: For program point L327(line 327) no Hoare annotation was computed. [2022-11-19 08:20:30,533 INFO L895 garLoopResultBuilder]: At program point L192(line 192) the Hoare annotation is: (let ((.cse2 (not (= |old(~waterLevel~0)| 2))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse4 (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse3 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse0 .cse2) (or .cse0 .cse1 (not (<= 1 |old(~switchedOnBeforeTS~0)|)) (not (< |old(~waterLevel~0)| 3))) (or (not (<= |old(~waterLevel~0)| 1)) .cse3 .cse4 .cse0) (or .cse3 (not (= 0 ~systemActive~0))))) [2022-11-19 08:20:30,534 INFO L895 garLoopResultBuilder]: At program point L192-1(lines 173 197) the Hoare annotation is: (let ((.cse6 (= ~pumpRunning~0 0)) (.cse9 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse3 (<= 1 ~switchedOnBeforeTS~0)) (.cse7 (not (<= |old(~waterLevel~0)| 1))) (.cse12 (and .cse6 .cse9)) (.cse0 (not (= 1 ~systemActive~0))) (.cse5 (not (= |old(~waterLevel~0)| 2))) (.cse4 (= ~pumpRunning~0 1)) (.cse11 (not (= |old(~pumpRunning~0)| 0)))) (and (let ((.cse2 (= ~waterLevel~0 1))) (or .cse0 .cse1 (and .cse2 .cse3 .cse4) .cse5 (and .cse6 .cse2 .cse3))) (let ((.cse10 (< 0 |old(~waterLevel~0)|))) (let ((.cse8 (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse10))) (or .cse7 .cse0 .cse1 (and (<= ~waterLevel~0 0) (or .cse8 .cse9) .cse3 .cse4) (not (<= 1 |old(~switchedOnBeforeTS~0)|)) (and .cse6 (or (and (not .cse10) .cse9) .cse8) .cse3)))) (or .cse7 .cse11 .cse12 .cse0) (or .cse11 .cse12 .cse0 .cse5 (and .cse9 .cse4)) (or .cse11 (not (= 0 ~systemActive~0)))))) [2022-11-19 08:20:30,534 INFO L895 garLoopResultBuilder]: At program point L126-1(lines 126 132) the Hoare annotation is: (let ((.cse6 (= ~pumpRunning~0 0)) (.cse9 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse8 (not (= 0 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse3 (<= 1 ~switchedOnBeforeTS~0)) (.cse10 (not (<= |old(~waterLevel~0)| 1))) (.cse7 (not (= |old(~pumpRunning~0)| 0))) (.cse13 (and .cse6 .cse9)) (.cse0 (not (= 1 ~systemActive~0))) (.cse5 (not (= |old(~waterLevel~0)| 2))) (.cse4 (= ~pumpRunning~0 1))) (and (let ((.cse2 (= ~waterLevel~0 1))) (or .cse0 .cse1 (and .cse2 .cse3 .cse4) .cse5 (and .cse6 .cse2 .cse3))) (or .cse7 .cse6 .cse8) (or .cse7 (not (< 1 |old(~waterLevel~0)|)) .cse9 (not (<= |old(~waterLevel~0)| 2)) .cse8) (or .cse10 .cse7 (not (<= 1 |old(~waterLevel~0)|)) .cse9 .cse8) (let ((.cse12 (< 0 |old(~waterLevel~0)|))) (let ((.cse11 (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse12))) (or .cse10 .cse0 .cse1 (and (<= ~waterLevel~0 0) (or .cse11 .cse9) .cse3 .cse4) (not (<= 1 |old(~switchedOnBeforeTS~0)|)) (and .cse6 (or (and (not .cse12) .cse9) .cse11) .cse3)))) (or .cse10 .cse7 .cse13 .cse0) (or .cse7 .cse13 .cse0 .cse5 (and .cse9 .cse4))))) [2022-11-19 08:20:30,535 INFO L899 garLoopResultBuilder]: For program point L506(lines 506 512) no Hoare annotation was computed. [2022-11-19 08:20:30,535 INFO L895 garLoopResultBuilder]: At program point L503(line 503) the Hoare annotation is: (let ((.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= 0 ~systemActive~0))) (.cse6 (not (= 1 ~systemActive~0))) (.cse8 (= ~pumpRunning~0 1)) (.cse7 (not (= |old(~pumpRunning~0)| 1))) (.cse1 (= ~pumpRunning~0 0)) (.cse4 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~5#1| ~waterLevel~0)) (.cse5 (<= 1 ~switchedOnBeforeTS~0)) (.cse9 (not (<= 1 |old(~switchedOnBeforeTS~0)|)))) (and (or .cse0 .cse1 .cse2) (or (not (<= |old(~waterLevel~0)| 1)) .cse0 (not (<= 1 |old(~waterLevel~0)|)) .cse3 .cse2) (or (and .cse1 .cse4 .cse3 .cse5) .cse6 .cse7 (and .cse4 .cse3 .cse5 .cse8) (not (<= |old(~waterLevel~0)| 0)) .cse9) (or .cse0 .cse6 (and .cse1 (<= ~waterLevel~0 1) .cse4 .cse3) (not (< |old(~waterLevel~0)| 3))) (let ((.cse10 (= ~waterLevel~0 1))) (or .cse6 .cse7 (and .cse4 .cse10 .cse5 .cse8) (not (= |old(~waterLevel~0)| 2)) (and .cse1 .cse4 .cse10 .cse5))) (or .cse0 (not (< 1 |old(~waterLevel~0)|)) (not (<= |old(~waterLevel~0)| 2)) .cse2) (let ((.cse11 (= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) (.cse12 (< 0 |old(~waterLevel~0)|))) (or (not (= |old(~waterLevel~0)| 1)) .cse6 (and .cse11 .cse12 .cse4 .cse5 .cse8) .cse7 (and .cse1 .cse11 .cse12 .cse4 .cse5) .cse9)))) [2022-11-19 08:20:30,535 INFO L899 garLoopResultBuilder]: For program point L503-1(line 503) no Hoare annotation was computed. [2022-11-19 08:20:30,536 INFO L899 garLoopResultBuilder]: For program point L119-2(lines 115 137) no Hoare annotation was computed. [2022-11-19 08:20:30,536 INFO L899 garLoopResultBuilder]: For program point L181(lines 181 189) no Hoare annotation was computed. [2022-11-19 08:20:30,536 INFO L895 garLoopResultBuilder]: At program point L177(lines 177 194) the Hoare annotation is: (let ((.cse8 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse4 (not (= |old(~waterLevel~0)| 2))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (<= 1 ~switchedOnBeforeTS~0)) (.cse3 (= ~pumpRunning~0 1)) (.cse7 (not (<= |old(~waterLevel~0)| 1))) (.cse6 (and (= ~pumpRunning~0 0) .cse8)) (.cse0 (not (= 1 ~systemActive~0))) (.cse5 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 (and (= ~waterLevel~0 1) .cse2 .cse3) .cse4) (or .cse5 .cse6 .cse0 .cse4) (or .cse7 .cse0 .cse1 (and (<= ~waterLevel~0 0) (or (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) (< 0 |old(~waterLevel~0)|)) .cse8) .cse2 .cse3) (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse7 .cse5 .cse6 .cse0) (or .cse5 (not (= 0 ~systemActive~0)))))) [2022-11-19 08:20:30,536 INFO L895 garLoopResultBuilder]: At program point L54(line 54) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (not (< |old(~waterLevel~0)| 3))) (.cse3 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 (not (= |old(~waterLevel~0)| 2))) (or .cse0 .cse1 (not (<= 1 |old(~switchedOnBeforeTS~0)|)) .cse2) (or .cse3 .cse0 .cse2) (or .cse3 (not (= 0 ~systemActive~0))))) [2022-11-19 08:20:30,537 INFO L895 garLoopResultBuilder]: At program point L488(line 488) the Hoare annotation is: (let ((.cse10 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse7 (<= 1 ~switchedOnBeforeTS~0)) (.cse4 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (.cse8 (not (< |old(~waterLevel~0)| 3))) (.cse2 (not (= |old(~pumpRunning~0)| 1))) (.cse9 (not (= |old(~waterLevel~0)| 2))) (.cse3 (and .cse10 (= ~pumpRunning~0 1))) (.cse0 (not (<= |old(~waterLevel~0)| 1))) (.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (and (= ~pumpRunning~0 0) .cse10)) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse6 (not (= 0 ~systemActive~0))) (or .cse1 .cse2 .cse7 .cse4 .cse8) (or .cse5 .cse6 .cse1 .cse9) (or .cse5 .cse1 .cse7 .cse4 .cse8) (or .cse1 .cse2 .cse9 .cse3) (or .cse0 .cse5 .cse6 .cse1)))) [2022-11-19 08:20:30,538 INFO L895 garLoopResultBuilder]: At program point L488-1(line 488) the Hoare annotation is: (let ((.cse5 (= 1 ~systemActive~0)) (.cse6 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (and (= ~pumpRunning~0 0) .cse6)) (.cse2 (and .cse5 .cse6 (< ~waterLevel~0 3) (<= 1 |timeShift___utac_acc__Specification5_spec__2_#t~ret22#1|) (= ~pumpRunning~0 1))) (.cse3 (not .cse5)) (.cse4 (not (= |old(~pumpRunning~0)| 1)))) (and (or .cse0 .cse1 (not (= 0 ~systemActive~0))) (or (not (<= |old(~waterLevel~0)| 1)) .cse2 .cse3 .cse4 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse0 .cse1 .cse3 (not (< |old(~waterLevel~0)| 3))) (or .cse2 .cse3 .cse4 (not (= |old(~waterLevel~0)| 2)))))) [2022-11-19 08:20:30,538 INFO L895 garLoopResultBuilder]: At program point L187(line 187) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (<= 1 ~switchedOnBeforeTS~0)) (.cse3 (= ~pumpRunning~0 1)) (.cse0 (not (= 1 ~systemActive~0))) (.cse4 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 (and (= ~waterLevel~0 1) .cse2 .cse3) (not (= |old(~waterLevel~0)| 2))) (or (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse1 (and (<= ~waterLevel~0 0) (or (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) (< 0 |old(~waterLevel~0)|)) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse2 .cse3) (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse4 .cse0 (not (< |old(~waterLevel~0)| 3))) (or .cse4 (not (= 0 ~systemActive~0))))) [2022-11-19 08:20:30,538 INFO L899 garLoopResultBuilder]: For program point L505(lines 505 515) no Hoare annotation was computed. [2022-11-19 08:20:30,539 INFO L895 garLoopResultBuilder]: At program point L183(line 183) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (<= 1 ~switchedOnBeforeTS~0)) (.cse3 (= ~pumpRunning~0 1)) (.cse0 (not (= 1 ~systemActive~0))) (.cse4 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 (and (= ~waterLevel~0 1) .cse2 .cse3) (not (= |old(~waterLevel~0)| 2))) (or (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse1 (and (<= ~waterLevel~0 0) (or (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) (< 0 |old(~waterLevel~0)|)) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse2 .cse3) (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse4 .cse0 (not (< |old(~waterLevel~0)| 3))) (or .cse4 (not (= 0 ~systemActive~0))))) [2022-11-19 08:20:30,539 INFO L899 garLoopResultBuilder]: For program point L501(lines 501 518) no Hoare annotation was computed. [2022-11-19 08:20:30,539 INFO L895 garLoopResultBuilder]: At program point L501-1(lines 493 521) the Hoare annotation is: (let ((.cse7 (= 1 ~systemActive~0))) (let ((.cse9 (not (= 0 ~systemActive~0))) (.cse8 (not (= |old(~pumpRunning~0)| 0))) (.cse12 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~5#1| 2)) (.cse10 (not (<= |old(~waterLevel~0)| 1))) (.cse0 (not .cse7)) (.cse5 (= ~pumpRunning~0 1)) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse6 (= ~pumpRunning~0 0)) (.cse2 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~5#1| ~waterLevel~0)) (.cse11 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse4 (<= 1 ~switchedOnBeforeTS~0))) (and (let ((.cse3 (= ~waterLevel~0 1))) (or .cse0 .cse1 (and .cse2 .cse3 .cse4 .cse5) (not (= |old(~waterLevel~0)| 2)) (and .cse6 .cse7 .cse2 .cse3 .cse4))) (or .cse8 .cse6 .cse9) (or .cse10 .cse8 (not (<= 1 |old(~waterLevel~0)|)) .cse11 .cse9) (or .cse8 (and .cse11 .cse12) (not (< 1 |old(~waterLevel~0)|)) (not (<= |old(~waterLevel~0)| 2)) .cse9) (or .cse8 .cse0 (and .cse2 .cse11 .cse12 .cse5) (and .cse6 .cse7 .cse2 .cse11) (not (< |old(~waterLevel~0)| 3))) (let ((.cse14 (< 0 |old(~waterLevel~0)|))) (let ((.cse13 (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse14))) (or .cse10 .cse0 (and .cse2 (<= ~waterLevel~0 0) (or .cse13 .cse11) .cse4 .cse5) .cse1 (and .cse6 .cse7 .cse2 (or (and (not .cse14) .cse11) .cse13) .cse4) (not (<= 1 |old(~switchedOnBeforeTS~0)|)))))))) [2022-11-19 08:20:30,539 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 112 138) the Hoare annotation is: (let ((.cse10 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse7 (<= 1 ~switchedOnBeforeTS~0)) (.cse4 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (.cse8 (not (< |old(~waterLevel~0)| 3))) (.cse2 (not (= |old(~pumpRunning~0)| 1))) (.cse9 (not (= |old(~waterLevel~0)| 2))) (.cse3 (and .cse10 (= ~pumpRunning~0 1))) (.cse0 (not (<= |old(~waterLevel~0)| 1))) (.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (and (= ~pumpRunning~0 0) .cse10)) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse6 (not (= 0 ~systemActive~0))) (or .cse1 .cse2 .cse7 .cse4 .cse8) (or .cse5 .cse6 .cse1 .cse9) (or .cse5 .cse1 .cse7 .cse4 .cse8) (or .cse1 .cse2 .cse9 .cse3) (or .cse0 .cse5 .cse6 .cse1)))) [2022-11-19 08:20:30,540 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 112 138) no Hoare annotation was computed. [2022-11-19 08:20:30,540 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2022-11-19 08:20:30,540 INFO L899 garLoopResultBuilder]: For program point L436(lines 436 442) no Hoare annotation was computed. [2022-11-19 08:20:30,541 INFO L899 garLoopResultBuilder]: For program point L436-1(lines 436 442) no Hoare annotation was computed. [2022-11-19 08:20:30,541 INFO L895 garLoopResultBuilder]: At program point L461(lines 416 463) the Hoare annotation is: (let ((.cse3 (< ~waterLevel~0 3)) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (= ~pumpRunning~0 1))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse1 .cse2 (<= 1 ~switchedOnBeforeTS~0) .cse3 .cse4) (and .cse0 .cse2 (= 0 ~systemActive~0)) (and (= 2 ~waterLevel~0) .cse1 .cse2 .cse4))) [2022-11-19 08:20:30,541 INFO L895 garLoopResultBuilder]: At program point L428(line 428) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 0)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (= ~pumpRunning~0 1))) (or (and .cse0 .cse1 (<= 1 ~switchedOnBeforeTS~0) (< ~waterLevel~0 3) .cse2) (and .cse3 .cse1 (= 0 ~systemActive~0)) (and .cse3 .cse0 .cse1 (<= ~waterLevel~0 2)) (and (= 2 ~waterLevel~0) .cse0 .cse1 .cse2))) [2022-11-19 08:20:30,542 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-19 08:20:30,542 INFO L895 garLoopResultBuilder]: At program point L392(lines 392 399) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-19 08:20:30,542 INFO L902 garLoopResultBuilder]: At program point L392-2(lines 392 399) the Hoare annotation is: true [2022-11-19 08:20:30,542 INFO L899 garLoopResultBuilder]: For program point L293(lines 293 299) no Hoare annotation was computed. [2022-11-19 08:20:30,542 INFO L895 garLoopResultBuilder]: At program point L293-1(lines 293 299) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-19 08:20:30,542 INFO L899 garLoopResultBuilder]: For program point L417(lines 416 463) no Hoare annotation was computed. [2022-11-19 08:20:30,543 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-19 08:20:30,543 INFO L899 garLoopResultBuilder]: For program point L446(lines 446 459) no Hoare annotation was computed. [2022-11-19 08:20:30,543 INFO L895 garLoopResultBuilder]: At program point L438(line 438) the Hoare annotation is: (let ((.cse3 (< ~waterLevel~0 3)) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (= ~pumpRunning~0 1))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse1 .cse2 (<= 1 ~switchedOnBeforeTS~0) .cse3 .cse4) (and .cse0 .cse2 (= 0 ~systemActive~0)) (and (= 2 ~waterLevel~0) .cse1 .cse2 .cse4))) [2022-11-19 08:20:30,543 INFO L902 garLoopResultBuilder]: At program point L467(lines 406 471) the Hoare annotation is: true [2022-11-19 08:20:30,543 INFO L899 garLoopResultBuilder]: For program point L426(lines 426 432) no Hoare annotation was computed. [2022-11-19 08:20:30,543 INFO L899 garLoopResultBuilder]: For program point L426-1(lines 426 432) no Hoare annotation was computed. [2022-11-19 08:20:30,544 INFO L895 garLoopResultBuilder]: At program point L464(lines 415 465) the Hoare annotation is: false [2022-11-19 08:20:30,544 INFO L895 garLoopResultBuilder]: At program point L295(line 295) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= 1 ~systemActive~0) .cse0) (and (<= 2 ~waterLevel~0) .cse0 (not (= 0 ~systemActive~0))))) [2022-11-19 08:20:30,544 INFO L899 garLoopResultBuilder]: For program point L452(lines 452 458) no Hoare annotation was computed. [2022-11-19 08:20:30,544 INFO L895 garLoopResultBuilder]: At program point L452-2(lines 446 459) the Hoare annotation is: (let ((.cse3 (< ~waterLevel~0 3)) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (= ~pumpRunning~0 1))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse1 .cse2 (<= 1 ~switchedOnBeforeTS~0) .cse3 .cse4) (and .cse0 .cse2 (= 0 ~systemActive~0)) (and (= 2 ~waterLevel~0) .cse1 .cse2 .cse4))) [2022-11-19 08:20:30,546 INFO L895 garLoopResultBuilder]: At program point L161(line 161) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 1))) (.cse3 (not (<= 1 ~switchedOnBeforeTS~0))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 (= ~pumpRunning~0 0) .cse1 (not (< ~waterLevel~0 3))) (or (not (= ~waterLevel~0 1)) .cse1 .cse2 .cse3) (or (not (<= ~waterLevel~0 0)) .cse1 .cse2 .cse3) (or .cse0 .cse1 (= |processEnvironment__wrappee__highWaterSensor_~tmp~0#1| 0) (not (<= ~waterLevel~0 1))))) [2022-11-19 08:20:30,546 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 147 171) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (not (<= 1 ~switchedOnBeforeTS~0))) (.cse3 (= ~pumpRunning~0 1))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0 (not (< ~waterLevel~0 3))) (or (not (<= ~waterLevel~0 0)) .cse0 .cse1 .cse2 .cse3) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2 .cse3))) [2022-11-19 08:20:30,547 INFO L895 garLoopResultBuilder]: At program point L155(lines 155 163) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 1))) (.cse3 (not (<= 1 ~switchedOnBeforeTS~0))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 (= ~pumpRunning~0 0) .cse1 (not (< ~waterLevel~0 3))) (or (not (= ~waterLevel~0 1)) .cse1 .cse2 .cse3) (or (not (<= ~waterLevel~0 0)) .cse1 .cse2 .cse3) (or .cse0 .cse1 (= |processEnvironment__wrappee__highWaterSensor_~tmp~0#1| 0) (not (<= ~waterLevel~0 1))))) [2022-11-19 08:20:30,547 INFO L895 garLoopResultBuilder]: At program point L151(lines 151 168) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (not (<= 1 ~switchedOnBeforeTS~0))) (.cse3 (= ~pumpRunning~0 1))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0 (not (< ~waterLevel~0 3))) (or (not (<= ~waterLevel~0 0)) .cse0 .cse1 .cse2 .cse3) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2 .cse3))) [2022-11-19 08:20:30,547 INFO L895 garLoopResultBuilder]: At program point L166(line 166) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (not (<= 1 ~switchedOnBeforeTS~0))) (.cse3 (= ~pumpRunning~0 1))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (< ~waterLevel~0 3))) (or (not (<= ~waterLevel~0 0)) .cse0 .cse1 .cse2 .cse3) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2 .cse3))) [2022-11-19 08:20:30,547 INFO L899 garLoopResultBuilder]: For program point L166-1(lines 147 171) no Hoare annotation was computed. [2022-11-19 08:20:30,548 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 147 171) no Hoare annotation was computed. [2022-11-19 08:20:30,548 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 903 914) no Hoare annotation was computed. [2022-11-19 08:20:30,548 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 903 914) the Hoare annotation is: (let ((.cse4 (not (= |old(~waterLevel~0)| 2))) (.cse0 (not (= ~pumpRunning~0 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse3 (not (= ~pumpRunning~0 1))) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 .cse1 (not (= 0 ~systemActive~0))) (or .cse2 .cse3 .cse4 .cse1) (or .cse0 .cse2 .cse4 .cse1) (or (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse2 .cse1) (or .cse2 .cse3 .cse1 (not (<= 1 ~switchedOnBeforeTS~0)) (not (< |old(~waterLevel~0)| 3))))) [2022-11-19 08:20:30,548 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 225 233) no Hoare annotation was computed. [2022-11-19 08:20:30,549 INFO L902 garLoopResultBuilder]: At program point isPumpRunningENTRY(lines 225 233) the Hoare annotation is: true [2022-11-19 08:20:30,552 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:20:30,554 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 08:20:30,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:20:30 BoogieIcfgContainer [2022-11-19 08:20:30,613 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 08:20:30,618 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 08:20:30,618 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 08:20:30,618 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 08:20:30,619 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:19:36" (3/4) ... [2022-11-19 08:20:30,622 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 08:20:30,628 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-11-19 08:20:30,629 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-19 08:20:30,629 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-19 08:20:30,629 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-19 08:20:30,629 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-19 08:20:30,630 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2022-11-19 08:20:30,630 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-19 08:20:30,630 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2022-11-19 08:20:30,647 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 46 nodes and edges [2022-11-19 08:20:30,647 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-11-19 08:20:30,648 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-11-19 08:20:30,648 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 08:20:30,649 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 08:20:30,678 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(0 == systemActive)) && ((((!(\old(waterLevel) <= 1) || ((((1 == systemActive && \old(waterLevel) == waterLevel) && waterLevel < 3) && 1 <= aux-isPumpRunning()-aux) && pumpRunning == 1)) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(1 <= \old(switchedOnBeforeTS)))) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(\old(waterLevel) < 3))) && (((((((1 == systemActive && \old(waterLevel) == waterLevel) && waterLevel < 3) && 1 <= aux-isPumpRunning()-aux) && pumpRunning == 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) [2022-11-19 08:20:30,680 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || ((waterLevel == 1 && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(waterLevel) == 2)) || ((pumpRunning == 0 && waterLevel == 1) && 1 <= switchedOnBeforeTS)) && ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(0 == systemActive))) && ((((!(\old(pumpRunning) == 0) || !(1 < \old(waterLevel))) || \old(waterLevel) == waterLevel) || !(\old(waterLevel) <= 2)) || !(0 == systemActive))) && ((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || !(1 <= \old(waterLevel))) || \old(waterLevel) == waterLevel) || !(0 == systemActive))) && (((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || (((waterLevel <= 0 && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(1 <= \old(switchedOnBeforeTS))) || ((pumpRunning == 0 && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) && 1 <= switchedOnBeforeTS))) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive))) && ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(\old(waterLevel) == 2)) || (\old(waterLevel) == waterLevel && pumpRunning == 1)) [2022-11-19 08:20:30,681 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || (((tmp == waterLevel && waterLevel == 1) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(waterLevel) == 2)) || ((((pumpRunning == 0 && 1 == systemActive) && tmp == waterLevel) && waterLevel == 1) && 1 <= switchedOnBeforeTS)) && ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(0 == systemActive))) && ((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || !(1 <= \old(waterLevel))) || \old(waterLevel) == waterLevel) || !(0 == systemActive))) && ((((!(\old(pumpRunning) == 0) || (\old(waterLevel) == waterLevel && tmp == 2)) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) || !(0 == systemActive))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (((tmp == waterLevel && \old(waterLevel) == waterLevel) && tmp == 2) && pumpRunning == 1)) || (((pumpRunning == 0 && 1 == systemActive) && tmp == waterLevel) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) < 3))) && (((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || ((((tmp == waterLevel && waterLevel <= 0) && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(pumpRunning) == 1)) || ((((pumpRunning == 0 && 1 == systemActive) && tmp == waterLevel) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) && 1 <= switchedOnBeforeTS)) || !(1 <= \old(switchedOnBeforeTS))) [2022-11-19 08:20:30,682 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || ((waterLevel == 1 && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(waterLevel) == 2)) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(\old(waterLevel) == 2))) && ((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || (((waterLevel <= 0 && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(1 <= \old(switchedOnBeforeTS)))) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) [2022-11-19 08:20:30,682 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) && (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(1 <= \old(switchedOnBeforeTS))) || !(\old(waterLevel) < 3))) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) < 3))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) [2022-11-19 08:20:30,682 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || ((waterLevel == 1 && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(waterLevel) == 2)) || ((pumpRunning == 0 && waterLevel == 1) && 1 <= switchedOnBeforeTS)) && (((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || (((waterLevel <= 0 && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(1 <= \old(switchedOnBeforeTS))) || ((pumpRunning == 0 && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) && 1 <= switchedOnBeforeTS))) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive))) && ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(\old(waterLevel) == 2)) || (\old(waterLevel) == waterLevel && pumpRunning == 1))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) [2022-11-19 08:20:30,683 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(waterLevel < 3)) && ((((!(waterLevel <= 0) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(1 <= switchedOnBeforeTS)) || pumpRunning == 1)) && ((((!(waterLevel == 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(1 <= switchedOnBeforeTS)) || pumpRunning == 1) [2022-11-19 08:20:30,686 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(waterLevel < 3)) && (((!(waterLevel == 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(1 <= switchedOnBeforeTS))) && (((!(waterLevel <= 0) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(1 <= switchedOnBeforeTS))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || tmp == 0) || !(waterLevel <= 1)) [2022-11-19 08:20:30,744 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0e0038-874f-472d-89f8-67ba3a8d3419/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 08:20:30,745 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 08:20:30,745 INFO L158 Benchmark]: Toolchain (without parser) took 56107.46ms. Allocated memory was 125.8MB in the beginning and 423.6MB in the end (delta: 297.8MB). Free memory was 90.4MB in the beginning and 306.8MB in the end (delta: -216.3MB). Peak memory consumption was 81.1MB. Max. memory is 16.1GB. [2022-11-19 08:20:30,746 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 125.8MB. Free memory is still 107.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:20:30,746 INFO L158 Benchmark]: CACSL2BoogieTranslator took 610.54ms. Allocated memory is still 125.8MB. Free memory was 90.1MB in the beginning and 94.3MB in the end (delta: -4.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-19 08:20:30,746 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.81ms. Allocated memory is still 125.8MB. Free memory was 94.3MB in the beginning and 91.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:20:30,747 INFO L158 Benchmark]: Boogie Preprocessor took 56.77ms. Allocated memory is still 125.8MB. Free memory was 91.9MB in the beginning and 90.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:20:30,748 INFO L158 Benchmark]: RCFGBuilder took 797.30ms. Allocated memory is still 125.8MB. Free memory was 90.4MB in the beginning and 65.6MB in the end (delta: 24.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-19 08:20:30,748 INFO L158 Benchmark]: TraceAbstraction took 54419.32ms. Allocated memory was 125.8MB in the beginning and 423.6MB in the end (delta: 297.8MB). Free memory was 64.9MB in the beginning and 313.0MB in the end (delta: -248.1MB). Peak memory consumption was 224.1MB. Max. memory is 16.1GB. [2022-11-19 08:20:30,749 INFO L158 Benchmark]: Witness Printer took 127.11ms. Allocated memory is still 423.6MB. Free memory was 313.0MB in the beginning and 306.8MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-19 08:20:30,751 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 125.8MB. Free memory is still 107.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 610.54ms. Allocated memory is still 125.8MB. Free memory was 90.1MB in the beginning and 94.3MB in the end (delta: -4.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.81ms. Allocated memory is still 125.8MB. Free memory was 94.3MB in the beginning and 91.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.77ms. Allocated memory is still 125.8MB. Free memory was 91.9MB in the beginning and 90.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 797.30ms. Allocated memory is still 125.8MB. Free memory was 90.4MB in the beginning and 65.6MB in the end (delta: 24.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 54419.32ms. Allocated memory was 125.8MB in the beginning and 423.6MB in the end (delta: 297.8MB). Free memory was 64.9MB in the beginning and 313.0MB in the end (delta: -248.1MB). Peak memory consumption was 224.1MB. Max. memory is 16.1GB. * Witness Printer took 127.11ms. Allocated memory is still 423.6MB. Free memory was 313.0MB in the beginning and 306.8MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 54]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 66 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 54.2s, OverallIterations: 11, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 7.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3184 SdHoareTripleChecker+Valid, 3.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3163 mSDsluCounter, 3323 SdHoareTripleChecker+Invalid, 3.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2427 mSDsCounter, 1833 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3716 IncrementalHoareTripleChecker+Invalid, 5549 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1833 mSolverCounterUnsat, 896 mSDtfsCounter, 3716 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1013 GetRequests, 722 SyntacticMatches, 20 SemanticMatches, 271 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7340 ImplicationChecksByTransitivity, 25.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=514occurred in iteration=6, InterpolantAutomatonStates: 137, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 11 MinimizatonAttempts, 299 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 38 LocationsWithAnnotation, 1359 PreInvPairs, 1577 NumberOfFragments, 2259 HoareAnnotationTreeSize, 1359 FomulaSimplifications, 6198 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 38 FomulaSimplificationsInter, 23319 FormulaSimplificationTreeSizeReductionInter, 6.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 830 NumberOfCodeBlocks, 830 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1054 ConstructedInterpolants, 0 QuantifiedInterpolants, 3267 SizeOfPredicates, 29 NumberOfNonLiveVariables, 1394 ConjunctsInSsa, 64 ConjunctsInUnsatCore, 18 InterpolantComputations, 8 PerfectInterpolantSequences, 458/607 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 177]: Loop Invariant Derived loop invariant: ((((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || ((waterLevel == 1 && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(waterLevel) == 2)) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(\old(waterLevel) == 2))) && ((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || (((waterLevel <= 0 && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(1 <= \old(switchedOnBeforeTS)))) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: ((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) && (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(1 <= \old(switchedOnBeforeTS))) || !(\old(waterLevel) < 3))) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) < 3))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) - InvariantResult [Line: 416]: Loop Invariant Derived loop invariant: (((((pumpRunning == 0 && 1 == systemActive) && splverifierCounter == 0) && waterLevel < 3) || ((((1 == systemActive && splverifierCounter == 0) && 1 <= switchedOnBeforeTS) && waterLevel < 3) && pumpRunning == 1)) || ((pumpRunning == 0 && splverifierCounter == 0) && 0 == systemActive)) || (((2 == waterLevel && 1 == systemActive) && splverifierCounter == 0) && pumpRunning == 1) - InvariantResult [Line: 293]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 - InvariantResult [Line: 493]: Loop Invariant Derived loop invariant: ((((((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || (((tmp == waterLevel && waterLevel == 1) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(waterLevel) == 2)) || ((((pumpRunning == 0 && 1 == systemActive) && tmp == waterLevel) && waterLevel == 1) && 1 <= switchedOnBeforeTS)) && ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(0 == systemActive))) && ((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || !(1 <= \old(waterLevel))) || \old(waterLevel) == waterLevel) || !(0 == systemActive))) && ((((!(\old(pumpRunning) == 0) || (\old(waterLevel) == waterLevel && tmp == 2)) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) || !(0 == systemActive))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (((tmp == waterLevel && \old(waterLevel) == waterLevel) && tmp == 2) && pumpRunning == 1)) || (((pumpRunning == 0 && 1 == systemActive) && tmp == waterLevel) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) < 3))) && (((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || ((((tmp == waterLevel && waterLevel <= 0) && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(pumpRunning) == 1)) || ((((pumpRunning == 0 && 1 == systemActive) && tmp == waterLevel) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) && 1 <= switchedOnBeforeTS)) || !(1 <= \old(switchedOnBeforeTS))) - InvariantResult [Line: 415]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 316]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 488]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(0 == systemActive)) && ((((!(\old(waterLevel) <= 1) || ((((1 == systemActive && \old(waterLevel) == waterLevel) && waterLevel < 3) && 1 <= aux-isPumpRunning()-aux) && pumpRunning == 1)) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(1 <= \old(switchedOnBeforeTS)))) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(\old(waterLevel) < 3))) && (((((((1 == systemActive && \old(waterLevel) == waterLevel) && waterLevel < 3) && 1 <= aux-isPumpRunning()-aux) && pumpRunning == 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) - InvariantResult [Line: 406]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 151]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(waterLevel < 3)) && ((((!(waterLevel <= 0) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(1 <= switchedOnBeforeTS)) || pumpRunning == 1)) && ((((!(waterLevel == 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(1 <= switchedOnBeforeTS)) || pumpRunning == 1) - InvariantResult [Line: 392]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 392]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 126]: Loop Invariant Derived loop invariant: (((((((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || ((waterLevel == 1 && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(waterLevel) == 2)) || ((pumpRunning == 0 && waterLevel == 1) && 1 <= switchedOnBeforeTS)) && ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(0 == systemActive))) && ((((!(\old(pumpRunning) == 0) || !(1 < \old(waterLevel))) || \old(waterLevel) == waterLevel) || !(\old(waterLevel) <= 2)) || !(0 == systemActive))) && ((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || !(1 <= \old(waterLevel))) || \old(waterLevel) == waterLevel) || !(0 == systemActive))) && (((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || (((waterLevel <= 0 && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(1 <= \old(switchedOnBeforeTS))) || ((pumpRunning == 0 && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) && 1 <= switchedOnBeforeTS))) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive))) && ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(\old(waterLevel) == 2)) || (\old(waterLevel) == waterLevel && pumpRunning == 1)) - InvariantResult [Line: 173]: Loop Invariant Derived loop invariant: (((((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || ((waterLevel == 1 && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(waterLevel) == 2)) || ((pumpRunning == 0 && waterLevel == 1) && 1 <= switchedOnBeforeTS)) && (((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || (((waterLevel <= 0 && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(1 <= \old(switchedOnBeforeTS))) || ((pumpRunning == 0 && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) && 1 <= switchedOnBeforeTS))) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive))) && ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(\old(waterLevel) == 2)) || (\old(waterLevel) == waterLevel && pumpRunning == 1))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) - InvariantResult [Line: 306]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 155]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(waterLevel < 3)) && (((!(waterLevel == 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(1 <= switchedOnBeforeTS))) && (((!(waterLevel <= 0) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(1 <= switchedOnBeforeTS))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || tmp == 0) || !(waterLevel <= 1)) RESULT: Ultimate proved your program to be correct! [2022-11-19 08:20:30,808 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe0e0038-874f-472d-89f8-67ba3a8d3419/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