./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product36.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_821b2062-9e93-48c9-8ef8-eefe681746c3/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_821b2062-9e93-48c9-8ef8-eefe681746c3/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_821b2062-9e93-48c9-8ef8-eefe681746c3/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_821b2062-9e93-48c9-8ef8-eefe681746c3/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product36.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_821b2062-9e93-48c9-8ef8-eefe681746c3/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_821b2062-9e93-48c9-8ef8-eefe681746c3/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 06101f936f6436bac89af152aefce31c84cfc20ba80a5adfcf1af02faa2d4f3b --- 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 06:59:42,152 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 06:59:42,154 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 06:59:42,183 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 06:59:42,185 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 06:59:42,189 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 06:59:42,192 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 06:59:42,195 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 06:59:42,198 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 06:59:42,201 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 06:59:42,203 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 06:59:42,205 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 06:59:42,205 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 06:59:42,206 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 06:59:42,208 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 06:59:42,209 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 06:59:42,209 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 06:59:42,210 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 06:59:42,212 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 06:59:42,213 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 06:59:42,215 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 06:59:42,219 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 06:59:42,220 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 06:59:42,221 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 06:59:42,224 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 06:59:42,224 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 06:59:42,225 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 06:59:42,225 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 06:59:42,226 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 06:59:42,227 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 06:59:42,227 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 06:59:42,228 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 06:59:42,228 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 06:59:42,229 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 06:59:42,230 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 06:59:42,238 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 06:59:42,240 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 06:59:42,240 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 06:59:42,240 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 06:59:42,241 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 06:59:42,242 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 06:59:42,243 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_821b2062-9e93-48c9-8ef8-eefe681746c3/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 06:59:42,285 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 06:59:42,285 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 06:59:42,286 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 06:59:42,286 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 06:59:42,288 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 06:59:42,288 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 06:59:42,288 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 06:59:42,288 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 06:59:42,288 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 06:59:42,288 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 06:59:42,290 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 06:59:42,290 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 06:59:42,290 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 06:59:42,290 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 06:59:42,290 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 06:59:42,291 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 06:59:42,291 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 06:59:42,291 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 06:59:42,292 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 06:59:42,292 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 06:59:42,292 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 06:59:42,292 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 06:59:42,292 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 06:59:42,294 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 06:59:42,294 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 06:59:42,295 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 06:59:42,295 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 06:59:42,295 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 06:59:42,295 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 06:59:42,295 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 06:59:42,296 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 06:59:42,296 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 06:59:42,296 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:59:42,297 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 06:59:42,297 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 06:59:42,297 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 06:59:42,297 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 06:59:42,297 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 06:59:42,297 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 06:59:42,298 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 06:59:42,298 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 06:59:42,298 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_821b2062-9e93-48c9-8ef8-eefe681746c3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_821b2062-9e93-48c9-8ef8-eefe681746c3/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 06101f936f6436bac89af152aefce31c84cfc20ba80a5adfcf1af02faa2d4f3b [2022-11-19 06:59:42,573 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 06:59:42,597 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 06:59:42,599 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 06:59:42,600 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 06:59:42,601 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 06:59:42,602 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_821b2062-9e93-48c9-8ef8-eefe681746c3/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/product-lines/minepump_spec5_product36.cil.c [2022-11-19 06:59:42,676 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_821b2062-9e93-48c9-8ef8-eefe681746c3/bin/utaipan-I9t0OCRTmS/data/adefc6ad5/9f97462585da4ceebc77fc00055e42f3/FLAG5f0b783b0 [2022-11-19 06:59:43,147 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 06:59:43,148 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_821b2062-9e93-48c9-8ef8-eefe681746c3/sv-benchmarks/c/product-lines/minepump_spec5_product36.cil.c [2022-11-19 06:59:43,159 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_821b2062-9e93-48c9-8ef8-eefe681746c3/bin/utaipan-I9t0OCRTmS/data/adefc6ad5/9f97462585da4ceebc77fc00055e42f3/FLAG5f0b783b0 [2022-11-19 06:59:43,508 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_821b2062-9e93-48c9-8ef8-eefe681746c3/bin/utaipan-I9t0OCRTmS/data/adefc6ad5/9f97462585da4ceebc77fc00055e42f3 [2022-11-19 06:59:43,513 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 06:59:43,516 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 06:59:43,519 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 06:59:43,519 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 06:59:43,522 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 06:59:43,523 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:59:43" (1/1) ... [2022-11-19 06:59:43,526 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@715bb879 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:59:43, skipping insertion in model container [2022-11-19 06:59:43,526 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:59:43" (1/1) ... [2022-11-19 06:59:43,534 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 06:59:43,597 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 06:59:43,778 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_821b2062-9e93-48c9-8ef8-eefe681746c3/sv-benchmarks/c/product-lines/minepump_spec5_product36.cil.c[2141,2154] [2022-11-19 06:59:43,949 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:59:43,962 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 06:59:43,993 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_821b2062-9e93-48c9-8ef8-eefe681746c3/sv-benchmarks/c/product-lines/minepump_spec5_product36.cil.c[2141,2154] [2022-11-19 06:59:44,061 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:59:44,077 INFO L208 MainTranslator]: Completed translation [2022-11-19 06:59:44,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:59:44 WrapperNode [2022-11-19 06:59:44,077 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 06:59:44,078 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 06:59:44,078 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 06:59:44,079 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 06:59:44,086 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:59:44" (1/1) ... [2022-11-19 06:59:44,104 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:59:44" (1/1) ... [2022-11-19 06:59:44,140 INFO L138 Inliner]: procedures = 56, calls = 99, calls flagged for inlining = 25, calls inlined = 21, statements flattened = 182 [2022-11-19 06:59:44,140 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 06:59:44,142 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 06:59:44,142 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 06:59:44,142 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 06:59:44,152 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:59:44" (1/1) ... [2022-11-19 06:59:44,153 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:59:44" (1/1) ... [2022-11-19 06:59:44,168 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:59:44" (1/1) ... [2022-11-19 06:59:44,169 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:59:44" (1/1) ... [2022-11-19 06:59:44,173 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:59:44" (1/1) ... [2022-11-19 06:59:44,194 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:59:44" (1/1) ... [2022-11-19 06:59:44,195 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:59:44" (1/1) ... [2022-11-19 06:59:44,198 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:59:44" (1/1) ... [2022-11-19 06:59:44,200 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 06:59:44,201 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 06:59:44,202 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 06:59:44,203 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 06:59:44,204 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:59:44" (1/1) ... [2022-11-19 06:59:44,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:59:44,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_821b2062-9e93-48c9-8ef8-eefe681746c3/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:59:44,237 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_821b2062-9e93-48c9-8ef8-eefe681746c3/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 06:59:44,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_821b2062-9e93-48c9-8ef8-eefe681746c3/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 06:59:44,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 06:59:44,270 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-19 06:59:44,270 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-19 06:59:44,270 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-19 06:59:44,270 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-19 06:59:44,270 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-19 06:59:44,270 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-19 06:59:44,270 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-19 06:59:44,270 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-19 06:59:44,271 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2022-11-19 06:59:44,271 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2022-11-19 06:59:44,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 06:59:44,271 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-19 06:59:44,271 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-19 06:59:44,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 06:59:44,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 06:59:44,344 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 06:59:44,346 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 06:59:44,569 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 06:59:44,774 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 06:59:44,774 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-19 06:59:44,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:59:44 BoogieIcfgContainer [2022-11-19 06:59:44,777 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 06:59:44,779 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 06:59:44,779 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 06:59:44,793 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 06:59:44,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:59:43" (1/3) ... [2022-11-19 06:59:44,794 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4da8762 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:59:44, skipping insertion in model container [2022-11-19 06:59:44,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:59:44" (2/3) ... [2022-11-19 06:59:44,795 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4da8762 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:59:44, skipping insertion in model container [2022-11-19 06:59:44,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:59:44" (3/3) ... [2022-11-19 06:59:44,796 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product36.cil.c [2022-11-19 06:59:44,813 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 06:59:44,813 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 06:59:44,867 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 06:59:44,878 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;@e94be36, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 06:59:44,879 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 06:59:44,894 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 39 states have internal predecessors, (47), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-19 06:59:44,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-19 06:59:44,906 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:59:44,906 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 06:59:44,907 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:59:44,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:59:44,914 INFO L85 PathProgramCache]: Analyzing trace with hash -631509363, now seen corresponding path program 1 times [2022-11-19 06:59:44,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:59:44,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559385907] [2022-11-19 06:59:44,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:59:44,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:59:45,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:59:45,161 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 06:59:45,164 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:59:45,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559385907] [2022-11-19 06:59:45,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559385907] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:59:45,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:59:45,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 06:59:45,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470975036] [2022-11-19 06:59:45,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:59:45,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 06:59:45,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:59:45,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 06:59:45,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 06:59:45,269 INFO L87 Difference]: Start difference. First operand has 51 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 39 states have internal predecessors, (47), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) 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 06:59:45,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:59:45,365 INFO L93 Difference]: Finished difference Result 100 states and 135 transitions. [2022-11-19 06:59:45,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 06:59:45,368 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 06:59:45,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:59:45,377 INFO L225 Difference]: With dead ends: 100 [2022-11-19 06:59:45,377 INFO L226 Difference]: Without dead ends: 46 [2022-11-19 06:59:45,383 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 06:59:45,386 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:59:45,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 49 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:59:45,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-11-19 06:59:45,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-11-19 06:59:45,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 30 states have (on average 1.3) internal successors, (39), 35 states have internal predecessors, (39), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-19 06:59:45,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 58 transitions. [2022-11-19 06:59:45,440 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 58 transitions. Word has length 21 [2022-11-19 06:59:45,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:59:45,441 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 58 transitions. [2022-11-19 06:59:45,441 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 06:59:45,441 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 58 transitions. [2022-11-19 06:59:45,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-19 06:59:45,443 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:59:45,444 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 06:59:45,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 06:59:45,444 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:59:45,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:59:45,445 INFO L85 PathProgramCache]: Analyzing trace with hash -896725322, now seen corresponding path program 1 times [2022-11-19 06:59:45,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:59:45,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113839800] [2022-11-19 06:59:45,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:59:45,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:59:45,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:59:45,601 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 06:59:45,602 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:59:45,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113839800] [2022-11-19 06:59:45,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113839800] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:59:45,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:59:45,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:59:45,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362043252] [2022-11-19 06:59:45,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:59:45,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:59:45,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:59:45,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:59:45,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:59:45,608 INFO L87 Difference]: Start difference. First operand 46 states and 58 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 06:59:45,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:59:45,670 INFO L93 Difference]: Finished difference Result 69 states and 87 transitions. [2022-11-19 06:59:45,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:59:45,675 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 06:59:45,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:59:45,676 INFO L225 Difference]: With dead ends: 69 [2022-11-19 06:59:45,676 INFO L226 Difference]: Without dead ends: 38 [2022-11-19 06:59:45,677 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 06:59:45,678 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 7 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 06:59:45,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 61 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 06:59:45,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-11-19 06:59:45,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2022-11-19 06:59:45,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 25 states have (on average 1.32) internal successors, (33), 30 states have internal predecessors, (33), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-19 06:59:45,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 47 transitions. [2022-11-19 06:59:45,685 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 47 transitions. Word has length 22 [2022-11-19 06:59:45,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:59:45,686 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 47 transitions. [2022-11-19 06:59:45,686 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 06:59:45,686 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 47 transitions. [2022-11-19 06:59:45,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-19 06:59:45,687 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:59:45,687 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] [2022-11-19 06:59:45,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 06:59:45,687 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:59:45,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:59:45,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1526551836, now seen corresponding path program 1 times [2022-11-19 06:59:45,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:59:45,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906736183] [2022-11-19 06:59:45,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:59:45,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:59:45,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:59:45,986 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 06:59:45,987 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:59:45,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906736183] [2022-11-19 06:59:45,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906736183] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:59:45,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:59:45,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-19 06:59:45,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368411022] [2022-11-19 06:59:45,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:59:45,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 06:59:45,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:59:45,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 06:59:45,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-19 06:59:45,990 INFO L87 Difference]: Start difference. First operand 38 states and 47 transitions. Second operand has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (3), 1 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 06:59:46,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:59:46,446 INFO L93 Difference]: Finished difference Result 145 states and 181 transitions. [2022-11-19 06:59:46,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-19 06:59:46,447 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (3), 1 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 24 [2022-11-19 06:59:46,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:59:46,449 INFO L225 Difference]: With dead ends: 145 [2022-11-19 06:59:46,449 INFO L226 Difference]: Without dead ends: 109 [2022-11-19 06:59:46,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2022-11-19 06:59:46,451 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 77 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-19 06:59:46,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 289 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-19 06:59:46,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2022-11-19 06:59:46,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 76. [2022-11-19 06:59:46,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 50 states have (on average 1.26) internal successors, (63), 56 states have internal predecessors, (63), 13 states have call successors, (13), 12 states have call predecessors, (13), 12 states have return successors, (15), 12 states have call predecessors, (15), 13 states have call successors, (15) [2022-11-19 06:59:46,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 91 transitions. [2022-11-19 06:59:46,477 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 91 transitions. Word has length 24 [2022-11-19 06:59:46,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:59:46,477 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 91 transitions. [2022-11-19 06:59:46,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (3), 1 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 06:59:46,478 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 91 transitions. [2022-11-19 06:59:46,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-19 06:59:46,483 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:59:46,483 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] [2022-11-19 06:59:46,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 06:59:46,484 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:59:46,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:59:46,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1117676100, now seen corresponding path program 1 times [2022-11-19 06:59:46,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:59:46,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53007129] [2022-11-19 06:59:46,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:59:46,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:59:46,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:59:46,960 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 06:59:46,960 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:59:46,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53007129] [2022-11-19 06:59:46,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53007129] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:59:46,961 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:59:46,961 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-19 06:59:46,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893799818] [2022-11-19 06:59:46,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:59:46,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-19 06:59:46,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:59:46,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-19 06:59:46,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-19 06:59:46,966 INFO L87 Difference]: Start difference. First operand 76 states and 91 transitions. Second operand has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-19 06:59:47,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:59:47,446 INFO L93 Difference]: Finished difference Result 267 states and 338 transitions. [2022-11-19 06:59:47,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-19 06:59:47,447 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 27 [2022-11-19 06:59:47,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:59:47,453 INFO L225 Difference]: With dead ends: 267 [2022-11-19 06:59:47,454 INFO L226 Difference]: Without dead ends: 193 [2022-11-19 06:59:47,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=432, Unknown=0, NotChecked=0, Total=552 [2022-11-19 06:59:47,459 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 141 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 06:59:47,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 315 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 06:59:47,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2022-11-19 06:59:47,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 129. [2022-11-19 06:59:47,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 87 states have (on average 1.2298850574712643) internal successors, (107), 95 states have internal predecessors, (107), 20 states have call successors, (20), 19 states have call predecessors, (20), 21 states have return successors, (24), 20 states have call predecessors, (24), 20 states have call successors, (24) [2022-11-19 06:59:47,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 151 transitions. [2022-11-19 06:59:47,492 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 151 transitions. Word has length 27 [2022-11-19 06:59:47,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:59:47,492 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 151 transitions. [2022-11-19 06:59:47,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-19 06:59:47,493 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 151 transitions. [2022-11-19 06:59:47,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-19 06:59:47,494 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:59:47,494 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] [2022-11-19 06:59:47,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 06:59:47,495 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:59:47,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:59:47,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1055167928, now seen corresponding path program 1 times [2022-11-19 06:59:47,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:59:47,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900045186] [2022-11-19 06:59:47,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:59:47,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:59:47,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:59:47,736 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 06:59:47,737 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:59:47,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900045186] [2022-11-19 06:59:47,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900045186] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:59:47,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:59:47,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-19 06:59:47,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995203352] [2022-11-19 06:59:47,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:59:47,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 06:59:47,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:59:47,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 06:59:47,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-19 06:59:47,740 INFO L87 Difference]: Start difference. First operand 129 states and 151 transitions. Second operand has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (4), 3 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 06:59:48,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:59:48,191 INFO L93 Difference]: Finished difference Result 366 states and 438 transitions. [2022-11-19 06:59:48,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-19 06:59:48,192 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (4), 3 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 30 [2022-11-19 06:59:48,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:59:48,194 INFO L225 Difference]: With dead ends: 366 [2022-11-19 06:59:48,194 INFO L226 Difference]: Without dead ends: 270 [2022-11-19 06:59:48,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2022-11-19 06:59:48,196 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 137 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 06:59:48,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 228 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 06:59:48,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2022-11-19 06:59:48,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 212. [2022-11-19 06:59:48,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 144 states have (on average 1.2291666666666667) internal successors, (177), 157 states have internal predecessors, (177), 33 states have call successors, (33), 30 states have call predecessors, (33), 34 states have return successors, (41), 33 states have call predecessors, (41), 33 states have call successors, (41) [2022-11-19 06:59:48,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 251 transitions. [2022-11-19 06:59:48,240 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 251 transitions. Word has length 30 [2022-11-19 06:59:48,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:59:48,241 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 251 transitions. [2022-11-19 06:59:48,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (4), 3 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 06:59:48,242 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 251 transitions. [2022-11-19 06:59:48,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-19 06:59:48,244 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:59:48,244 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] [2022-11-19 06:59:48,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 06:59:48,244 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:59:48,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:59:48,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1641184103, now seen corresponding path program 1 times [2022-11-19 06:59:48,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:59:48,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74312210] [2022-11-19 06:59:48,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:59:48,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:59:48,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:59:48,593 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-19 06:59:48,593 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:59:48,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74312210] [2022-11-19 06:59:48,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74312210] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:59:48,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [172662310] [2022-11-19 06:59:48,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:59:48,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:59:48,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_821b2062-9e93-48c9-8ef8-eefe681746c3/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:59:48,601 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_821b2062-9e93-48c9-8ef8-eefe681746c3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:59:48,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_821b2062-9e93-48c9-8ef8-eefe681746c3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 06:59:48,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:59:48,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-19 06:59:48,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:59:48,944 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:59:48,944 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:59:49,487 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-19 06:59:49,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [172662310] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:59:49,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1562404715] [2022-11-19 06:59:49,507 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2022-11-19 06:59:49,507 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 06:59:49,511 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 06:59:49,516 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 06:59:49,517 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 06:59:52,248 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 52 for LOIs [2022-11-19 06:59:52,259 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 29 for LOIs [2022-11-19 06:59:52,630 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 37 for LOIs [2022-11-19 06:59:52,636 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 06:59:56,982 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2707#(and (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 0)) (<= 0 (+ 2147483648 |old(~pumpRunning~0)|)) (<= |old(~pumpRunning~0)| 2147483647) (or (and (= ~head~0.offset 0) (= |timeShift_getWaterLevel_~retValue_acc~10#1| ~waterLevel~0) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1|) (= |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1| |timeShift_getWaterLevel_#res#1|) (= |#NULL.offset| 0) (= 0 ~systemActive~0) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1| 2)) (= |timeShift_getWaterLevel_~retValue_acc~10#1| |timeShift_getWaterLevel_#res#1|) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0)) (and (= ~head~0.offset 0) (= |timeShift_getWaterLevel_~retValue_acc~10#1| ~waterLevel~0) (= |old(~pumpRunning~0)| 0) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1|) (= |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1| |timeShift_getWaterLevel_#res#1|) (= |#NULL.offset| 0) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1| 2)) (= |timeShift_getWaterLevel_~retValue_acc~10#1| |timeShift_getWaterLevel_#res#1|) (= ~pumpRunning~0 1) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))) (<= ~methaneLevelCritical~0 0) (<= 0 ~head~0.base) (<= 0 ~methaneLevelCritical~0) (<= ~head~0.base 0) (<= 0 (+ |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1| 2147483648)) (<= 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) (= ~switchedOnBeforeTS~0 0) (<= 0 |#StackHeapBarrier|) (<= ~systemActive~0 1))' at error location [2022-11-19 06:59:56,982 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 06:59:56,983 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 06:59:56,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 9] total 22 [2022-11-19 06:59:56,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870701366] [2022-11-19 06:59:56,983 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 06:59:56,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-19 06:59:56,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:59:56,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-19 06:59:56,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=282, Invalid=1880, Unknown=0, NotChecked=0, Total=2162 [2022-11-19 06:59:56,986 INFO L87 Difference]: Start difference. First operand 212 states and 251 transitions. Second operand has 22 states, 20 states have (on average 3.75) internal successors, (75), 20 states have internal predecessors, (75), 8 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (13), 7 states have call predecessors, (13), 8 states have call successors, (13) [2022-11-19 06:59:59,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:59:59,488 INFO L93 Difference]: Finished difference Result 920 states and 1153 transitions. [2022-11-19 06:59:59,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-11-19 06:59:59,492 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 3.75) internal successors, (75), 20 states have internal predecessors, (75), 8 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (13), 7 states have call predecessors, (13), 8 states have call successors, (13) Word has length 47 [2022-11-19 06:59:59,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:59:59,503 INFO L225 Difference]: With dead ends: 920 [2022-11-19 06:59:59,503 INFO L226 Difference]: Without dead ends: 709 [2022-11-19 06:59:59,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 124 SyntacticMatches, 1 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2354 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=938, Invalid=6202, Unknown=0, NotChecked=0, Total=7140 [2022-11-19 06:59:59,508 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 653 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 1129 mSolverCounterSat, 559 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 662 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 1688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 559 IncrementalHoareTripleChecker+Valid, 1129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:59:59,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [662 Valid, 552 Invalid, 1688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [559 Valid, 1129 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-19 06:59:59,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states. [2022-11-19 06:59:59,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 566. [2022-11-19 06:59:59,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 376 states have (on average 1.199468085106383) internal successors, (451), 418 states have internal predecessors, (451), 92 states have call successors, (92), 88 states have call predecessors, (92), 97 states have return successors, (138), 90 states have call predecessors, (138), 92 states have call successors, (138) [2022-11-19 06:59:59,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 681 transitions. [2022-11-19 06:59:59,640 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 681 transitions. Word has length 47 [2022-11-19 06:59:59,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:59:59,642 INFO L495 AbstractCegarLoop]: Abstraction has 566 states and 681 transitions. [2022-11-19 06:59:59,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 3.75) internal successors, (75), 20 states have internal predecessors, (75), 8 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (13), 7 states have call predecessors, (13), 8 states have call successors, (13) [2022-11-19 06:59:59,642 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 681 transitions. [2022-11-19 06:59:59,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-19 06:59:59,654 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:59:59,654 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-11-19 06:59:59,672 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_821b2062-9e93-48c9-8ef8-eefe681746c3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 06:59:59,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_821b2062-9e93-48c9-8ef8-eefe681746c3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:59:59,872 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:59:59,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:59:59,873 INFO L85 PathProgramCache]: Analyzing trace with hash 119352699, now seen corresponding path program 1 times [2022-11-19 06:59:59,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:59:59,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853155065] [2022-11-19 06:59:59,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:59:59,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:59:59,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:00:00,418 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-19 07:00:00,418 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:00:00,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853155065] [2022-11-19 07:00:00,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853155065] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:00:00,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1129707064] [2022-11-19 07:00:00,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:00:00,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:00:00,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_821b2062-9e93-48c9-8ef8-eefe681746c3/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:00:00,421 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_821b2062-9e93-48c9-8ef8-eefe681746c3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:00:00,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_821b2062-9e93-48c9-8ef8-eefe681746c3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 07:00:00,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:00:00,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 53 conjunts are in the unsatisfiable core [2022-11-19 07:00:00,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:00:01,296 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 13 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-19 07:00:01,297 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:00:01,873 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-19 07:00:01,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1129707064] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:00:01,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2003153338] [2022-11-19 07:00:01,876 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2022-11-19 07:00:01,876 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:00:01,877 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:00:01,877 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:00:01,877 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:00:06,677 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 53 for LOIs [2022-11-19 07:00:06,686 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 36 for LOIs [2022-11-19 07:00:07,116 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 23 for LOIs [2022-11-19 07:00:07,121 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:00:11,471 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5481#(and (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 0)) (<= ~pumpRunning~0 1) (= ~methaneLevelCritical~0 0) (= ~head~0.offset 0) (= |old(~pumpRunning~0)| 0) (<= 0 (+ ~waterLevel~0 2147483648)) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 1) (<= 0 (+ 2147483648 |timeShift_getWaterLevel_#res#1|)) (<= ~waterLevel~0 2147483647) (<= |timeShift_getWaterLevel_#res#1| 2147483647) (<= 0 ~pumpRunning~0) (<= 0 (+ |timeShift_getWaterLevel_~retValue_acc~10#1| 2147483648)) (= ~head~0.base 0) (= |#NULL.offset| 0) (<= 0 (+ |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1| 2147483648)) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1| 2147483647) (<= |timeShift_getWaterLevel_~retValue_acc~10#1| 2147483647) (<= 0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1|) (= ~switchedOnBeforeTS~0 0) (<= 0 |#StackHeapBarrier|) (<= ~systemActive~0 1) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-11-19 07:00:11,472 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 07:00:11,472 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:00:11,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 19, 13] total 37 [2022-11-19 07:00:11,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13428474] [2022-11-19 07:00:11,475 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 07:00:11,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-11-19 07:00:11,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:00:11,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-11-19 07:00:11,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=391, Invalid=3269, Unknown=0, NotChecked=0, Total=3660 [2022-11-19 07:00:11,480 INFO L87 Difference]: Start difference. First operand 566 states and 681 transitions. Second operand has 37 states, 32 states have (on average 2.625) internal successors, (84), 31 states have internal predecessors, (84), 10 states have call successors, (19), 11 states have call predecessors, (19), 11 states have return successors, (17), 11 states have call predecessors, (17), 10 states have call successors, (17) [2022-11-19 07:00:17,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:00:17,971 INFO L93 Difference]: Finished difference Result 2288 states and 2908 transitions. [2022-11-19 07:00:17,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2022-11-19 07:00:17,972 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 32 states have (on average 2.625) internal successors, (84), 31 states have internal predecessors, (84), 10 states have call successors, (19), 11 states have call predecessors, (19), 11 states have return successors, (17), 11 states have call predecessors, (17), 10 states have call successors, (17) Word has length 52 [2022-11-19 07:00:17,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:00:17,974 INFO L225 Difference]: With dead ends: 2288 [2022-11-19 07:00:17,974 INFO L226 Difference]: Without dead ends: 0 [2022-11-19 07:00:17,984 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 114 SyntacticMatches, 9 SemanticMatches, 154 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8511 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=3039, Invalid=21141, Unknown=0, NotChecked=0, Total=24180 [2022-11-19 07:00:17,985 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 1058 mSDsluCounter, 953 mSDsCounter, 0 mSdLazyCounter, 2387 mSolverCounterSat, 753 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1063 SdHoareTripleChecker+Valid, 1055 SdHoareTripleChecker+Invalid, 3140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 753 IncrementalHoareTripleChecker+Valid, 2387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-19 07:00:17,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1063 Valid, 1055 Invalid, 3140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [753 Valid, 2387 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-19 07:00:17,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-19 07:00:17,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-19 07:00:17,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:00:17,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-19 07:00:17,988 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 52 [2022-11-19 07:00:17,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:00:17,988 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-19 07:00:17,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 32 states have (on average 2.625) internal successors, (84), 31 states have internal predecessors, (84), 10 states have call successors, (19), 11 states have call predecessors, (19), 11 states have return successors, (17), 11 states have call predecessors, (17), 10 states have call successors, (17) [2022-11-19 07:00:17,988 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-19 07:00:17,989 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-19 07:00:17,991 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 07:00:17,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_821b2062-9e93-48c9-8ef8-eefe681746c3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 07:00:18,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_821b2062-9e93-48c9-8ef8-eefe681746c3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:00:18,201 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-19 07:00:31,453 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 140 146) no Hoare annotation was computed. [2022-11-19 07:00:31,453 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 140 146) the Hoare annotation is: true [2022-11-19 07:00:31,453 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 900 911) the Hoare annotation is: true [2022-11-19 07:00:31,453 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 900 911) no Hoare annotation was computed. [2022-11-19 07:00:31,453 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 727 756) no Hoare annotation was computed. [2022-11-19 07:00:31,453 INFO L902 garLoopResultBuilder]: At program point L737-2(lines 737 751) the Hoare annotation is: true [2022-11-19 07:00:31,454 INFO L902 garLoopResultBuilder]: At program point L733(line 733) the Hoare annotation is: true [2022-11-19 07:00:31,454 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 727 756) the Hoare annotation is: true [2022-11-19 07:00:31,454 INFO L899 garLoopResultBuilder]: For program point L733-1(line 733) no Hoare annotation was computed. [2022-11-19 07:00:31,454 INFO L902 garLoopResultBuilder]: At program point L752(lines 727 756) the Hoare annotation is: true [2022-11-19 07:00:31,454 INFO L899 garLoopResultBuilder]: For program point L748(line 748) no Hoare annotation was computed. [2022-11-19 07:00:31,454 INFO L899 garLoopResultBuilder]: For program point L741(lines 741 745) no Hoare annotation was computed. [2022-11-19 07:00:31,455 INFO L902 garLoopResultBuilder]: At program point L741-1(lines 741 745) the Hoare annotation is: true [2022-11-19 07:00:31,455 INFO L899 garLoopResultBuilder]: For program point L857(lines 857 863) no Hoare annotation was computed. [2022-11-19 07:00:31,457 INFO L895 garLoopResultBuilder]: At program point L127-1(lines 127 133) the Hoare annotation is: (let ((.cse9 (= ~pumpRunning~0 0))) (let ((.cse3 (not .cse9)) (.cse0 (= |old(~pumpRunning~0)| 0)) (.cse1 (= 0 ~systemActive~0)) (.cse4 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse2 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (and (or (not .cse0) (and (= 2 ~waterLevel~0) .cse1 .cse2) (and .cse3 (= |timeShift_processEnvironment_~tmp~0#1| 1) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (= |old(~waterLevel~0)| 2))) (let ((.cse5 (not (< 0 ~waterLevel~0))) (.cse6 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse7 (or (not (= |old(~waterLevel~0)| 1)) (<= 1 ~waterLevel~0))) (.cse8 (or (<= (+ ~waterLevel~0 1) |old(~waterLevel~0)|) (and .cse5 .cse6) (and .cse9 .cse6)))) (or (not (<= |old(~waterLevel~0)| 1)) (and .cse4 .cse3 .cse5 .cse6 .cse2) (and .cse4 .cse7 .cse8 .cse1 .cse2) (and .cse4 (= |timeShift_processEnvironment_~tmp~0#1| 0) .cse7 .cse8 .cse2)))) (or (and .cse4 .cse9) (and .cse0 (not .cse1)) (not (<= |old(~waterLevel~0)| 2)) (and .cse4 (= ~waterLevel~0 1) .cse2) (not (<= 2 |old(~waterLevel~0)|)))))) [2022-11-19 07:00:31,461 INFO L895 garLoopResultBuilder]: At program point L156(lines 156 164) the Hoare annotation is: (let ((.cse0 (not (< |old(~waterLevel~0)| 3)))) (and (or (= |old(~waterLevel~0)| ~waterLevel~0) (not (<= |old(~waterLevel~0)| 2)) (not (<= 2 |old(~waterLevel~0)|))) (or (not (= 0 ~systemActive~0)) .cse0) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (or (not (= |old(~waterLevel~0)| 1)) (<= 1 ~waterLevel~0)) (= ~pumpRunning~0 0) (let ((.cse1 (< ~waterLevel~0 2))) (or (and (= |timeShift_processEnvironment_~tmp~0#1| 0) .cse1) (and (not .cse1) (= |timeShift_processEnvironment_~tmp~0#1| 1)))) (<= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) .cse0))) [2022-11-19 07:00:31,462 INFO L895 garLoopResultBuilder]: At program point L152(lines 152 169) the Hoare annotation is: (let ((.cse6 (= |old(~pumpRunning~0)| 0)) (.cse1 (= ~pumpRunning~0 0))) (let ((.cse0 (let ((.cse7 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (or (<= (+ ~waterLevel~0 1) |old(~waterLevel~0)|) (and (not (< 0 ~waterLevel~0)) .cse7) (and .cse1 .cse7)))) (.cse2 (and .cse6 (not (= 0 ~systemActive~0)))) (.cse4 (not .cse6)) (.cse5 (not (<= 2 |old(~waterLevel~0)|))) (.cse3 (not (< |old(~waterLevel~0)| 3)))) (and (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not .cse1)) .cse2 .cse3) (or (not (<= |old(~waterLevel~0)| 1)) .cse4 (and (or (not (= |old(~waterLevel~0)| 1)) (<= 1 ~waterLevel~0)) .cse0 .cse1)) (or .cse2 (= ~waterLevel~0 1) (not (<= |old(~waterLevel~0)| 2)) .cse5) (or .cse4 (= |old(~waterLevel~0)| ~waterLevel~0) .cse3 .cse5) (or (and (or .cse1 (< ~waterLevel~0 2)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) .cse3)))) [2022-11-19 07:00:31,462 INFO L895 garLoopResultBuilder]: At program point L854(line 854) the Hoare annotation is: (let ((.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (= ~waterLevel~0 1))) (and (let ((.cse2 (not (< 0 ~waterLevel~0))) (.cse1 (= ~pumpRunning~0 0)) (.cse3 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse0 (or (<= (+ ~waterLevel~0 1) |old(~waterLevel~0)|) (and .cse2 .cse3) (and .cse1 .cse3)))) (or (not (<= |old(~waterLevel~0)| 1)) (and .cse0 (= 0 ~systemActive~0)) (and (= |timeShift_processEnvironment_~tmp~0#1| 0) .cse0) (and (not .cse1) .cse2 .cse3)))) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1| ~waterLevel~0) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (not (< |old(~waterLevel~0)| 3))) (or .cse4 (not (= |old(~waterLevel~0)| 2))) (or .cse5 (not (<= |old(~waterLevel~0)| 2)) (not (<= 2 |old(~waterLevel~0)|))) (or .cse4 (not (= |old(~waterLevel~0)| 1)) .cse5))) [2022-11-19 07:00:31,462 INFO L899 garLoopResultBuilder]: For program point L854-1(line 854) no Hoare annotation was computed. [2022-11-19 07:00:31,462 INFO L899 garLoopResultBuilder]: For program point L120-2(lines 116 138) no Hoare annotation was computed. [2022-11-19 07:00:31,462 INFO L895 garLoopResultBuilder]: At program point L839(line 839) the Hoare annotation is: (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (< |old(~waterLevel~0)| 3))) [2022-11-19 07:00:31,462 INFO L895 garLoopResultBuilder]: At program point L839-1(line 839) the Hoare annotation is: (or (and (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__2_#t~ret44#1|) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= |old(~waterLevel~0)| 2))) [2022-11-19 07:00:31,462 INFO L895 garLoopResultBuilder]: At program point L162(line 162) the Hoare annotation is: (let ((.cse0 (not (< |old(~waterLevel~0)| 3)))) (and (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift_processEnvironment_~tmp~0#1| 0) (= ~pumpRunning~0 0) (<= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) .cse0) (or (not (= |old(~waterLevel~0)| 1)) (= ~waterLevel~0 1)) (not (= |old(~waterLevel~0)| 2)) (or (not (= 0 ~systemActive~0)) .cse0))) [2022-11-19 07:00:31,463 INFO L895 garLoopResultBuilder]: At program point L92(line 92) the Hoare annotation is: (not (< |old(~waterLevel~0)| 3)) [2022-11-19 07:00:31,463 INFO L899 garLoopResultBuilder]: For program point L856(lines 856 866) no Hoare annotation was computed. [2022-11-19 07:00:31,463 INFO L899 garLoopResultBuilder]: For program point L852(lines 852 869) no Hoare annotation was computed. [2022-11-19 07:00:31,463 INFO L895 garLoopResultBuilder]: At program point L852-1(lines 844 872) the Hoare annotation is: (let ((.cse16 (= |old(~pumpRunning~0)| 0))) (let ((.cse8 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse4 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1| ~waterLevel~0)) (.cse14 (= 0 ~systemActive~0)) (.cse10 (not (< 0 ~waterLevel~0))) (.cse3 (= ~pumpRunning~0 0)) (.cse6 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse0 (not .cse16)) (.cse15 (not (< |old(~waterLevel~0)| 3)))) (let ((.cse1 (and (or .cse0 .cse15) (not (< |old(~waterLevel~0)| 2)))) (.cse2 (or (<= (+ ~waterLevel~0 1) |old(~waterLevel~0)|) (and .cse10 .cse6) (and .cse3 .cse6))) (.cse5 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1| 2)) (.cse7 (and .cse8 .cse3 .cse4 (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1|) .cse6 .cse14)) (.cse12 (and .cse16 (not .cse14))) (.cse11 (not (= |old(~waterLevel~0)| 1))) (.cse13 (= ~waterLevel~0 1)) (.cse9 (not .cse3))) (and (or .cse0 .cse1 (and .cse2 (<= |timeShift_processEnvironment_~tmp~0#1| 0) .cse3 .cse4 (< 0 (+ |timeShift_processEnvironment_~tmp~0#1| 1))) (and .cse5 .cse4 .cse6) .cse7) (or (and .cse8 .cse9 .cse10 (or (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 0)) .cse11) .cse4 .cse6) .cse1 .cse12 (and .cse2 .cse5 .cse4) .cse7) (or (and .cse8 .cse4 .cse13) (and .cse8 .cse3) .cse12 (not (= |old(~waterLevel~0)| 2))) (or .cse0 .cse11 .cse13) (or .cse0 (and (= |old(~waterLevel~0)| ~waterLevel~0) .cse14) (and .cse9 (= |timeShift_processEnvironment_~tmp~0#1| 1)) .cse15 (not (<= 2 |old(~waterLevel~0)|))))))) [2022-11-19 07:00:31,463 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 113 139) the Hoare annotation is: (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (< |old(~waterLevel~0)| 3))) [2022-11-19 07:00:31,463 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 113 139) no Hoare annotation was computed. [2022-11-19 07:00:31,463 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 92) no Hoare annotation was computed. [2022-11-19 07:00:31,464 INFO L895 garLoopResultBuilder]: At program point L167(line 167) the Hoare annotation is: (and (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (or (<= (+ ~waterLevel~0 1) |old(~waterLevel~0)|) (and (not (< 0 ~waterLevel~0)) (<= ~waterLevel~0 |old(~waterLevel~0)|))) (not (= ~pumpRunning~0 0)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (not (< |old(~waterLevel~0)| 3))) (or (= ~waterLevel~0 1) (not (<= |old(~waterLevel~0)| 2)) (not (<= 2 |old(~waterLevel~0)|)))) [2022-11-19 07:00:31,464 INFO L895 garLoopResultBuilder]: At program point L167-1(lines 148 172) the Hoare annotation is: (let ((.cse10 (= |old(~pumpRunning~0)| 0)) (.cse9 (= ~pumpRunning~0 0))) (let ((.cse1 (not .cse9)) (.cse7 (and .cse10 (not (= 0 ~systemActive~0)))) (.cse2 (not (<= |old(~waterLevel~0)| 2))) (.cse4 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse3 (not (<= 2 |old(~waterLevel~0)|))) (.cse5 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse6 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse0 (not .cse10)) (.cse8 (= ~waterLevel~0 1))) (and (or .cse0 (and .cse1 (= |timeShift_processEnvironment_~tmp~0#1| 1) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse2 .cse3) (or (not (<= |old(~waterLevel~0)| 1)) (and .cse4 .cse1 (not (< 0 ~waterLevel~0)) .cse5 .cse6) .cse7) (or .cse7 .cse2 (and .cse4 .cse8 .cse6) .cse3) (or .cse0 (and (= |timeShift_processEnvironment_~tmp~0#1| 0) .cse9 .cse5 .cse6) (not (< |old(~waterLevel~0)| 2))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse8)))) [2022-11-19 07:00:31,465 INFO L895 garLoopResultBuilder]: At program point L717(lines 666 718) the Hoare annotation is: false [2022-11-19 07:00:31,465 INFO L895 garLoopResultBuilder]: At program point L705-2(lines 697 712) the Hoare annotation is: (and (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (< ~waterLevel~0 3)) [2022-11-19 07:00:31,465 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-19 07:00:31,465 INFO L899 garLoopResultBuilder]: For program point L668(lines 667 716) no Hoare annotation was computed. [2022-11-19 07:00:31,465 INFO L895 garLoopResultBuilder]: At program point L689(line 689) the Hoare annotation is: (and (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (< ~waterLevel~0 3)) [2022-11-19 07:00:31,465 INFO L895 garLoopResultBuilder]: At program point L714(lines 667 716) the Hoare annotation is: (let ((.cse1 (= 2 ~waterLevel~0)) (.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= ~waterLevel~0 1) .cse0) (and .cse1 .cse0 (= 0 ~systemActive~0)) (and (not (= ~pumpRunning~0 0)) .cse1 .cse0))) [2022-11-19 07:00:31,465 INFO L899 garLoopResultBuilder]: For program point L677(lines 677 683) no Hoare annotation was computed. [2022-11-19 07:00:31,465 INFO L899 garLoopResultBuilder]: For program point L677-1(lines 677 683) no Hoare annotation was computed. [2022-11-19 07:00:31,465 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-19 07:00:31,465 INFO L895 garLoopResultBuilder]: At program point L810(lines 810 817) the Hoare annotation is: (and (= |ULTIMATE.start_main_~tmp~6#1| 1) (= ~pumpRunning~0 0) (= ~waterLevel~0 1) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) [2022-11-19 07:00:31,466 INFO L902 garLoopResultBuilder]: At program point L810-2(lines 810 817) the Hoare annotation is: true [2022-11-19 07:00:31,466 INFO L902 garLoopResultBuilder]: At program point L720(lines 657 724) the Hoare annotation is: true [2022-11-19 07:00:31,466 INFO L899 garLoopResultBuilder]: For program point L687(lines 687 693) no Hoare annotation was computed. [2022-11-19 07:00:31,466 INFO L895 garLoopResultBuilder]: At program point L687-1(lines 687 693) the Hoare annotation is: (and (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (< ~waterLevel~0 3)) [2022-11-19 07:00:31,466 INFO L895 garLoopResultBuilder]: At program point L679(line 679) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= ~waterLevel~0 1) .cse0) (and .cse0 (= 0 ~systemActive~0) (< ~waterLevel~0 3)) (and (not (= ~pumpRunning~0 0)) (= 2 ~waterLevel~0) .cse0))) [2022-11-19 07:00:31,466 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 888 899) no Hoare annotation was computed. [2022-11-19 07:00:31,466 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 888 899) the Hoare annotation is: (let ((.cse0 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or (= ~pumpRunning~0 0) .cse0 (not (<= |old(~waterLevel~0)| 2))) (or .cse0 (not (= 0 ~systemActive~0)) (not (< |old(~waterLevel~0)| 3))) (or (not (<= |old(~waterLevel~0)| 1)) .cse0))) [2022-11-19 07:00:31,466 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 200 208) no Hoare annotation was computed. [2022-11-19 07:00:31,466 INFO L902 garLoopResultBuilder]: At program point isPumpRunningENTRY(lines 200 208) the Hoare annotation is: true [2022-11-19 07:00:31,469 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:00:31,471 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 07:00:31,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:00:31 BoogieIcfgContainer [2022-11-19 07:00:31,499 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 07:00:31,500 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 07:00:31,500 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 07:00:31,500 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 07:00:31,501 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:59:44" (3/4) ... [2022-11-19 07:00:31,504 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 07:00:31,510 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-19 07:00:31,510 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-19 07:00:31,510 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-19 07:00:31,510 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-19 07:00:31,511 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-19 07:00:31,511 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2022-11-19 07:00:31,517 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 47 nodes and edges [2022-11-19 07:00:31,518 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-19 07:00:31,518 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-19 07:00:31,519 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 07:00:31,519 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 07:00:31,545 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == aux-isPumpRunning()-aux && pumpRunning == \old(pumpRunning)) && \old(waterLevel) == waterLevel) || !(\old(waterLevel) <= 2) [2022-11-19 07:00:31,546 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || ((2 == waterLevel && 0 == systemActive) && pumpRunning == switchedOnBeforeTS)) || ((!(pumpRunning == 0) && tmp == 1) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) == 2)) && (((!(\old(waterLevel) <= 1) || ((((pumpRunning == \old(pumpRunning) && !(pumpRunning == 0)) && !(0 < waterLevel)) && waterLevel <= \old(waterLevel)) && pumpRunning == switchedOnBeforeTS)) || ((((pumpRunning == \old(pumpRunning) && (!(\old(waterLevel) == 1) || 1 <= waterLevel)) && ((waterLevel + 1 <= \old(waterLevel) || (!(0 < waterLevel) && waterLevel <= \old(waterLevel))) || (pumpRunning == 0 && waterLevel <= \old(waterLevel)))) && 0 == systemActive) && pumpRunning == switchedOnBeforeTS)) || ((((pumpRunning == \old(pumpRunning) && tmp == 0) && (!(\old(waterLevel) == 1) || 1 <= waterLevel)) && ((waterLevel + 1 <= \old(waterLevel) || (!(0 < waterLevel) && waterLevel <= \old(waterLevel))) || (pumpRunning == 0 && waterLevel <= \old(waterLevel)))) && pumpRunning == switchedOnBeforeTS))) && (((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) || (\old(pumpRunning) == 0 && !(0 == systemActive))) || !(\old(waterLevel) <= 2)) || ((pumpRunning == \old(pumpRunning) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS)) || !(2 <= \old(waterLevel))) [2022-11-19 07:00:31,547 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\old(pumpRunning) == 0) || ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) < 3)) && !(\old(waterLevel) < 2))) || ((((((waterLevel + 1 <= \old(waterLevel) || (!(0 < waterLevel) && waterLevel <= \old(waterLevel))) || (pumpRunning == 0 && waterLevel <= \old(waterLevel))) && tmp <= 0) && pumpRunning == 0) && tmp == waterLevel) && 0 < tmp + 1)) || ((tmp == 2 && tmp == waterLevel) && waterLevel <= \old(waterLevel))) || (((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && tmp == waterLevel) && pumpRunning == tmp___0) && waterLevel <= \old(waterLevel)) && 0 == systemActive)) && (((((((((pumpRunning == \old(pumpRunning) && !(pumpRunning == 0)) && !(0 < waterLevel)) && (!(tmp___0 == 0) || !(\old(waterLevel) == 1))) && tmp == waterLevel) && waterLevel <= \old(waterLevel)) || ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) < 3)) && !(\old(waterLevel) < 2))) || (\old(pumpRunning) == 0 && !(0 == systemActive))) || ((((waterLevel + 1 <= \old(waterLevel) || (!(0 < waterLevel) && waterLevel <= \old(waterLevel))) || (pumpRunning == 0 && waterLevel <= \old(waterLevel))) && tmp == 2) && tmp == waterLevel)) || (((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && tmp == waterLevel) && pumpRunning == tmp___0) && waterLevel <= \old(waterLevel)) && 0 == systemActive))) && (((((pumpRunning == \old(pumpRunning) && tmp == waterLevel) && waterLevel == 1) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || (\old(pumpRunning) == 0 && !(0 == systemActive))) || !(\old(waterLevel) == 2))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1)) && ((((!(\old(pumpRunning) == 0) || (\old(waterLevel) == waterLevel && 0 == systemActive)) || (!(pumpRunning == 0) && tmp == 1)) || !(\old(waterLevel) < 3)) || !(2 <= \old(waterLevel))) [2022-11-19 07:00:31,547 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((pumpRunning == \old(pumpRunning) && ((waterLevel + 1 <= \old(waterLevel) || (!(0 < waterLevel) && waterLevel <= \old(waterLevel))) || (pumpRunning == 0 && waterLevel <= \old(waterLevel)))) && !(pumpRunning == 0)) || (\old(pumpRunning) == 0 && !(0 == systemActive))) || !(\old(waterLevel) < 3)) && ((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || (((!(\old(waterLevel) == 1) || 1 <= waterLevel) && ((waterLevel + 1 <= \old(waterLevel) || (!(0 < waterLevel) && waterLevel <= \old(waterLevel))) || (pumpRunning == 0 && waterLevel <= \old(waterLevel)))) && pumpRunning == 0))) && ((((\old(pumpRunning) == 0 && !(0 == systemActive)) || waterLevel == 1) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || !(\old(waterLevel) < 3)) || !(2 <= \old(waterLevel)))) && (((pumpRunning == 0 || waterLevel < 2) && pumpRunning == switchedOnBeforeTS) || !(\old(waterLevel) < 3)) [2022-11-19 07:00:31,547 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(waterLevel) < 3) [2022-11-19 07:00:31,548 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(pumpRunning) == 0) || ((!(pumpRunning == 0) && tmp == 1) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) && ((!(\old(waterLevel) <= 1) || ((((pumpRunning == \old(pumpRunning) && !(pumpRunning == 0)) && !(0 < waterLevel)) && waterLevel <= \old(waterLevel)) && pumpRunning == switchedOnBeforeTS)) || (\old(pumpRunning) == 0 && !(0 == systemActive)))) && ((((\old(pumpRunning) == 0 && !(0 == systemActive)) || !(\old(waterLevel) <= 2)) || ((pumpRunning == \old(pumpRunning) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS)) || !(2 <= \old(waterLevel)))) && ((!(\old(pumpRunning) == 0) || (((tmp == 0 && pumpRunning == 0) && waterLevel <= \old(waterLevel)) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) < 2))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1) [2022-11-19 07:00:31,549 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\old(waterLevel) == waterLevel || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) && (!(0 == systemActive) || !(\old(waterLevel) < 3))) && ((((((pumpRunning == \old(pumpRunning) && (!(\old(waterLevel) == 1) || 1 <= waterLevel)) && pumpRunning == 0) && ((tmp == 0 && waterLevel < 2) || (!(waterLevel < 2) && tmp == 1))) && waterLevel <= \old(waterLevel)) && pumpRunning == switchedOnBeforeTS) || !(\old(waterLevel) < 3)) [2022-11-19 07:00:31,573 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_821b2062-9e93-48c9-8ef8-eefe681746c3/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 07:00:31,573 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 07:00:31,573 INFO L158 Benchmark]: Toolchain (without parser) took 48057.36ms. Allocated memory was 115.3MB in the beginning and 723.5MB in the end (delta: 608.2MB). Free memory was 73.8MB in the beginning and 385.0MB in the end (delta: -311.2MB). Peak memory consumption was 298.0MB. Max. memory is 16.1GB. [2022-11-19 07:00:31,574 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 115.3MB. Free memory is still 91.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:00:31,574 INFO L158 Benchmark]: CACSL2BoogieTranslator took 559.17ms. Allocated memory is still 115.3MB. Free memory was 73.6MB in the beginning and 83.7MB in the end (delta: -10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-19 07:00:31,574 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.40ms. Allocated memory is still 115.3MB. Free memory was 83.7MB in the beginning and 81.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:00:31,575 INFO L158 Benchmark]: Boogie Preprocessor took 58.95ms. Allocated memory is still 115.3MB. Free memory was 81.8MB in the beginning and 80.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:00:31,575 INFO L158 Benchmark]: RCFGBuilder took 575.52ms. Allocated memory is still 115.3MB. Free memory was 80.2MB in the beginning and 56.1MB in the end (delta: 24.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-19 07:00:31,575 INFO L158 Benchmark]: TraceAbstraction took 46720.69ms. Allocated memory was 115.3MB in the beginning and 723.5MB in the end (delta: 608.2MB). Free memory was 55.1MB in the beginning and 390.3MB in the end (delta: -335.2MB). Peak memory consumption was 413.4MB. Max. memory is 16.1GB. [2022-11-19 07:00:31,576 INFO L158 Benchmark]: Witness Printer took 72.85ms. Allocated memory is still 723.5MB. Free memory was 389.2MB in the beginning and 385.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-19 07:00:31,577 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 115.3MB. Free memory is still 91.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 559.17ms. Allocated memory is still 115.3MB. Free memory was 73.6MB in the beginning and 83.7MB in the end (delta: -10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.40ms. Allocated memory is still 115.3MB. Free memory was 83.7MB in the beginning and 81.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.95ms. Allocated memory is still 115.3MB. Free memory was 81.8MB in the beginning and 80.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 575.52ms. Allocated memory is still 115.3MB. Free memory was 80.2MB in the beginning and 56.1MB in the end (delta: 24.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 46720.69ms. Allocated memory was 115.3MB in the beginning and 723.5MB in the end (delta: 608.2MB). Free memory was 55.1MB in the beginning and 390.3MB in the end (delta: -335.2MB). Peak memory consumption was 413.4MB. Max. memory is 16.1GB. * Witness Printer took 72.85ms. Allocated memory is still 723.5MB. Free memory was 389.2MB in the beginning and 385.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 92]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 51 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 46.6s, OverallIterations: 7, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 10.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 13.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2100 SdHoareTripleChecker+Valid, 3.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2073 mSDsluCounter, 2549 SdHoareTripleChecker+Invalid, 3.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2090 mSDsCounter, 1447 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4341 IncrementalHoareTripleChecker+Invalid, 5788 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1447 mSolverCounterUnsat, 459 mSDtfsCounter, 4341 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 554 GetRequests, 256 SyntacticMatches, 10 SemanticMatches, 288 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11023 ImplicationChecksByTransitivity, 15.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=566occurred in iteration=6, InterpolantAutomatonStates: 206, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 7 MinimizatonAttempts, 298 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 31 LocationsWithAnnotation, 1572 PreInvPairs, 2471 NumberOfFragments, 1117 HoareAnnotationTreeSize, 1572 FomulaSimplifications, 71914 FormulaSimplificationTreeSizeReduction, 5.2s HoareSimplificationTime, 31 FomulaSimplificationsInter, 92142 FormulaSimplificationTreeSizeReductionInter, 7.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 322 NumberOfCodeBlocks, 322 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 410 ConstructedInterpolants, 0 QuantifiedInterpolants, 1877 SizeOfPredicates, 33 NumberOfNonLiveVariables, 540 ConjunctsInSsa, 80 ConjunctsInUnsatCore, 11 InterpolantComputations, 5 PerfectInterpolantSequences, 111/151 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: 810]: Loop Invariant Derived loop invariant: ((tmp == 1 && pumpRunning == 0) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS - InvariantResult [Line: 666]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 810]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 148]: Loop Invariant Derived loop invariant: ((((((!(\old(pumpRunning) == 0) || ((!(pumpRunning == 0) && tmp == 1) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) && ((!(\old(waterLevel) <= 1) || ((((pumpRunning == \old(pumpRunning) && !(pumpRunning == 0)) && !(0 < waterLevel)) && waterLevel <= \old(waterLevel)) && pumpRunning == switchedOnBeforeTS)) || (\old(pumpRunning) == 0 && !(0 == systemActive)))) && ((((\old(pumpRunning) == 0 && !(0 == systemActive)) || !(\old(waterLevel) <= 2)) || ((pumpRunning == \old(pumpRunning) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS)) || !(2 <= \old(waterLevel)))) && ((!(\old(pumpRunning) == 0) || (((tmp == 0 && pumpRunning == 0) && waterLevel <= \old(waterLevel)) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) < 2))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1) - InvariantResult [Line: 667]: Loop Invariant Derived loop invariant: ((waterLevel <= 1 && splverifierCounter == 0) || ((2 == waterLevel && splverifierCounter == 0) && 0 == systemActive)) || ((!(pumpRunning == 0) && 2 == waterLevel) && splverifierCounter == 0) - InvariantResult [Line: 737]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 844]: Loop Invariant Derived loop invariant: (((((((!(\old(pumpRunning) == 0) || ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) < 3)) && !(\old(waterLevel) < 2))) || ((((((waterLevel + 1 <= \old(waterLevel) || (!(0 < waterLevel) && waterLevel <= \old(waterLevel))) || (pumpRunning == 0 && waterLevel <= \old(waterLevel))) && tmp <= 0) && pumpRunning == 0) && tmp == waterLevel) && 0 < tmp + 1)) || ((tmp == 2 && tmp == waterLevel) && waterLevel <= \old(waterLevel))) || (((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && tmp == waterLevel) && pumpRunning == tmp___0) && waterLevel <= \old(waterLevel)) && 0 == systemActive)) && (((((((((pumpRunning == \old(pumpRunning) && !(pumpRunning == 0)) && !(0 < waterLevel)) && (!(tmp___0 == 0) || !(\old(waterLevel) == 1))) && tmp == waterLevel) && waterLevel <= \old(waterLevel)) || ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) < 3)) && !(\old(waterLevel) < 2))) || (\old(pumpRunning) == 0 && !(0 == systemActive))) || ((((waterLevel + 1 <= \old(waterLevel) || (!(0 < waterLevel) && waterLevel <= \old(waterLevel))) || (pumpRunning == 0 && waterLevel <= \old(waterLevel))) && tmp == 2) && tmp == waterLevel)) || (((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && tmp == waterLevel) && pumpRunning == tmp___0) && waterLevel <= \old(waterLevel)) && 0 == systemActive))) && (((((pumpRunning == \old(pumpRunning) && tmp == waterLevel) && waterLevel == 1) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || (\old(pumpRunning) == 0 && !(0 == systemActive))) || !(\old(waterLevel) == 2))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1)) && ((((!(\old(pumpRunning) == 0) || (\old(waterLevel) == waterLevel && 0 == systemActive)) || (!(pumpRunning == 0) && tmp == 1)) || !(\old(waterLevel) < 3)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 156]: Loop Invariant Derived loop invariant: (((\old(waterLevel) == waterLevel || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) && (!(0 == systemActive) || !(\old(waterLevel) < 3))) && ((((((pumpRunning == \old(pumpRunning) && (!(\old(waterLevel) == 1) || 1 <= waterLevel)) && pumpRunning == 0) && ((tmp == 0 && waterLevel < 2) || (!(waterLevel < 2) && tmp == 1))) && waterLevel <= \old(waterLevel)) && pumpRunning == switchedOnBeforeTS) || !(\old(waterLevel) < 3)) - InvariantResult [Line: 152]: Loop Invariant Derived loop invariant: (((((((pumpRunning == \old(pumpRunning) && ((waterLevel + 1 <= \old(waterLevel) || (!(0 < waterLevel) && waterLevel <= \old(waterLevel))) || (pumpRunning == 0 && waterLevel <= \old(waterLevel)))) && !(pumpRunning == 0)) || (\old(pumpRunning) == 0 && !(0 == systemActive))) || !(\old(waterLevel) < 3)) && ((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || (((!(\old(waterLevel) == 1) || 1 <= waterLevel) && ((waterLevel + 1 <= \old(waterLevel) || (!(0 < waterLevel) && waterLevel <= \old(waterLevel))) || (pumpRunning == 0 && waterLevel <= \old(waterLevel)))) && pumpRunning == 0))) && ((((\old(pumpRunning) == 0 && !(0 == systemActive)) || waterLevel == 1) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || !(\old(waterLevel) < 3)) || !(2 <= \old(waterLevel)))) && (((pumpRunning == 0 || waterLevel < 2) && pumpRunning == switchedOnBeforeTS) || !(\old(waterLevel) < 3)) - InvariantResult [Line: 839]: Loop Invariant Derived loop invariant: ((pumpRunning == aux-isPumpRunning()-aux && pumpRunning == \old(pumpRunning)) && \old(waterLevel) == waterLevel) || !(\old(waterLevel) <= 2) - InvariantResult [Line: 657]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 727]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 92]: Loop Invariant Derived loop invariant: !(\old(waterLevel) < 3) - InvariantResult [Line: 687]: Loop Invariant Derived loop invariant: splverifierCounter == 0 && waterLevel < 3 - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || ((2 == waterLevel && 0 == systemActive) && pumpRunning == switchedOnBeforeTS)) || ((!(pumpRunning == 0) && tmp == 1) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) == 2)) && (((!(\old(waterLevel) <= 1) || ((((pumpRunning == \old(pumpRunning) && !(pumpRunning == 0)) && !(0 < waterLevel)) && waterLevel <= \old(waterLevel)) && pumpRunning == switchedOnBeforeTS)) || ((((pumpRunning == \old(pumpRunning) && (!(\old(waterLevel) == 1) || 1 <= waterLevel)) && ((waterLevel + 1 <= \old(waterLevel) || (!(0 < waterLevel) && waterLevel <= \old(waterLevel))) || (pumpRunning == 0 && waterLevel <= \old(waterLevel)))) && 0 == systemActive) && pumpRunning == switchedOnBeforeTS)) || ((((pumpRunning == \old(pumpRunning) && tmp == 0) && (!(\old(waterLevel) == 1) || 1 <= waterLevel)) && ((waterLevel + 1 <= \old(waterLevel) || (!(0 < waterLevel) && waterLevel <= \old(waterLevel))) || (pumpRunning == 0 && waterLevel <= \old(waterLevel)))) && pumpRunning == switchedOnBeforeTS))) && (((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) || (\old(pumpRunning) == 0 && !(0 == systemActive))) || !(\old(waterLevel) <= 2)) || ((pumpRunning == \old(pumpRunning) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS)) || !(2 <= \old(waterLevel))) RESULT: Ultimate proved your program to be correct! [2022-11-19 07:00:31,618 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_821b2062-9e93-48c9-8ef8-eefe681746c3/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE