./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product52.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb5af97-8862-4753-9181-f6458a63dcef/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb5af97-8862-4753-9181-f6458a63dcef/bin/utaipan-6cKwYrpEi9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb5af97-8862-4753-9181-f6458a63dcef/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb5af97-8862-4753-9181-f6458a63dcef/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product52.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb5af97-8862-4753-9181-f6458a63dcef/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb5af97-8862-4753-9181-f6458a63dcef/bin/utaipan-6cKwYrpEi9 --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 4074665f53184e0f9778b3e4e6ee9c58d8a047121518f9c126ceccd876afea36 --- 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-6b4ec56 [2022-11-20 20:46:00,103 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 20:46:00,106 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 20:46:00,151 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 20:46:00,152 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 20:46:00,154 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 20:46:00,157 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 20:46:00,160 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 20:46:00,164 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 20:46:00,166 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 20:46:00,168 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 20:46:00,172 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 20:46:00,174 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 20:46:00,177 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 20:46:00,178 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 20:46:00,184 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 20:46:00,186 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 20:46:00,189 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 20:46:00,191 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 20:46:00,192 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 20:46:00,193 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 20:46:00,197 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 20:46:00,199 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 20:46:00,199 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 20:46:00,203 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 20:46:00,204 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 20:46:00,204 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 20:46:00,205 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 20:46:00,206 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 20:46:00,207 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 20:46:00,207 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 20:46:00,208 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 20:46:00,209 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 20:46:00,218 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 20:46:00,222 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 20:46:00,222 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 20:46:00,223 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 20:46:00,224 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 20:46:00,224 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 20:46:00,227 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 20:46:00,228 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 20:46:00,231 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb5af97-8862-4753-9181-f6458a63dcef/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-20 20:46:00,275 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 20:46:00,276 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 20:46:00,276 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 20:46:00,277 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 20:46:00,277 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 20:46:00,278 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 20:46:00,278 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 20:46:00,278 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 20:46:00,278 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 20:46:00,279 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-20 20:46:00,280 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 20:46:00,280 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 20:46:00,280 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-20 20:46:00,281 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-20 20:46:00,281 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 20:46:00,281 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-20 20:46:00,281 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-20 20:46:00,282 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-20 20:46:00,283 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 20:46:00,283 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 20:46:00,283 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 20:46:00,284 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 20:46:00,284 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 20:46:00,284 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 20:46:00,284 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 20:46:00,284 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 20:46:00,285 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 20:46:00,286 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 20:46:00,286 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 20:46:00,286 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 20:46:00,286 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 20:46:00,287 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 20:46:00,287 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:46:00,287 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 20:46:00,287 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-20 20:46:00,288 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 20:46:00,288 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 20:46:00,288 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-20 20:46:00,288 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 20:46:00,289 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 20:46:00,289 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 20:46:00,290 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_ccb5af97-8862-4753-9181-f6458a63dcef/bin/utaipan-6cKwYrpEi9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb5af97-8862-4753-9181-f6458a63dcef/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4074665f53184e0f9778b3e4e6ee9c58d8a047121518f9c126ceccd876afea36 [2022-11-20 20:46:00,592 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 20:46:00,629 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 20:46:00,632 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 20:46:00,634 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 20:46:00,634 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 20:46:00,636 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb5af97-8862-4753-9181-f6458a63dcef/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/product-lines/minepump_spec5_product52.cil.c [2022-11-20 20:46:03,786 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 20:46:04,037 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 20:46:04,037 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb5af97-8862-4753-9181-f6458a63dcef/sv-benchmarks/c/product-lines/minepump_spec5_product52.cil.c [2022-11-20 20:46:04,052 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb5af97-8862-4753-9181-f6458a63dcef/bin/utaipan-6cKwYrpEi9/data/a05e5b05d/b4fe6a85f1604d61a859855e118d4d0b/FLAGaef20c2b6 [2022-11-20 20:46:04,073 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb5af97-8862-4753-9181-f6458a63dcef/bin/utaipan-6cKwYrpEi9/data/a05e5b05d/b4fe6a85f1604d61a859855e118d4d0b [2022-11-20 20:46:04,077 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 20:46:04,079 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 20:46:04,083 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 20:46:04,083 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 20:46:04,087 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 20:46:04,088 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:46:04" (1/1) ... [2022-11-20 20:46:04,091 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e0caf12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:46:04, skipping insertion in model container [2022-11-20 20:46:04,091 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:46:04" (1/1) ... [2022-11-20 20:46:04,100 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 20:46:04,153 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 20:46:04,397 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb5af97-8862-4753-9181-f6458a63dcef/sv-benchmarks/c/product-lines/minepump_spec5_product52.cil.c[12672,12685] [2022-11-20 20:46:04,441 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:46:04,455 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 20:46:04,514 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb5af97-8862-4753-9181-f6458a63dcef/sv-benchmarks/c/product-lines/minepump_spec5_product52.cil.c[12672,12685] [2022-11-20 20:46:04,536 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:46:04,558 INFO L208 MainTranslator]: Completed translation [2022-11-20 20:46:04,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:46:04 WrapperNode [2022-11-20 20:46:04,559 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 20:46:04,561 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 20:46:04,561 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 20:46:04,561 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 20:46:04,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:46:04" (1/1) ... [2022-11-20 20:46:04,587 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:46:04" (1/1) ... [2022-11-20 20:46:04,620 INFO L138 Inliner]: procedures = 59, calls = 104, calls flagged for inlining = 26, calls inlined = 22, statements flattened = 212 [2022-11-20 20:46:04,621 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 20:46:04,622 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 20:46:04,622 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 20:46:04,622 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 20:46:04,633 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:46:04" (1/1) ... [2022-11-20 20:46:04,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:46:04" (1/1) ... [2022-11-20 20:46:04,636 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:46:04" (1/1) ... [2022-11-20 20:46:04,637 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:46:04" (1/1) ... [2022-11-20 20:46:04,642 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:46:04" (1/1) ... [2022-11-20 20:46:04,648 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:46:04" (1/1) ... [2022-11-20 20:46:04,650 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:46:04" (1/1) ... [2022-11-20 20:46:04,652 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:46:04" (1/1) ... [2022-11-20 20:46:04,655 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 20:46:04,656 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 20:46:04,656 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 20:46:04,656 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 20:46:04,657 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:46:04" (1/1) ... [2022-11-20 20:46:04,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:46:04,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb5af97-8862-4753-9181-f6458a63dcef/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:46:04,700 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb5af97-8862-4753-9181-f6458a63dcef/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 20:46:04,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb5af97-8862-4753-9181-f6458a63dcef/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 20:46:04,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 20:46:04,771 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-20 20:46:04,772 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-20 20:46:04,772 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-20 20:46:04,772 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-20 20:46:04,772 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-20 20:46:04,773 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-20 20:46:04,773 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-11-20 20:46:04,773 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-11-20 20:46:04,773 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-20 20:46:04,774 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-20 20:46:04,774 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2022-11-20 20:46:04,774 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2022-11-20 20:46:04,774 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-11-20 20:46:04,775 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-11-20 20:46:04,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 20:46:04,775 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-20 20:46:04,775 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-20 20:46:04,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 20:46:04,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 20:46:04,896 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 20:46:04,899 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 20:46:05,242 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 20:46:05,556 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 20:46:05,557 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-20 20:46:05,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:46:05 BoogieIcfgContainer [2022-11-20 20:46:05,560 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 20:46:05,563 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 20:46:05,563 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 20:46:05,595 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 20:46:05,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 08:46:04" (1/3) ... [2022-11-20 20:46:05,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6082d8ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:46:05, skipping insertion in model container [2022-11-20 20:46:05,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:46:04" (2/3) ... [2022-11-20 20:46:05,603 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6082d8ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:46:05, skipping insertion in model container [2022-11-20 20:46:05,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:46:05" (3/3) ... [2022-11-20 20:46:05,605 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product52.cil.c [2022-11-20 20:46:05,630 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 20:46:05,630 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 20:46:05,706 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 20:46:05,713 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;@229eb6fe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 20:46:05,714 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 20:46:05,719 INFO L276 IsEmpty]: Start isEmpty. Operand has 66 states, 42 states have (on average 1.4523809523809523) internal successors, (61), 51 states have internal predecessors, (61), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2022-11-20 20:46:05,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-20 20:46:05,730 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:46:05,731 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] [2022-11-20 20:46:05,732 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:46:05,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:46:05,738 INFO L85 PathProgramCache]: Analyzing trace with hash -183472395, now seen corresponding path program 1 times [2022-11-20 20:46:05,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:46:05,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131908509] [2022-11-20 20:46:05,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:46:05,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:46:05,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:46:05,955 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 20:46:05,956 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:46:05,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131908509] [2022-11-20 20:46:05,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131908509] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:46:05,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:46:05,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 20:46:05,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507376980] [2022-11-20 20:46:05,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:46:05,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 20:46:05,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:46:05,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 20:46:06,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 20:46:06,002 INFO L87 Difference]: Start difference. First operand has 66 states, 42 states have (on average 1.4523809523809523) internal successors, (61), 51 states have internal predecessors, (61), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 20:46:06,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:46:06,086 INFO L93 Difference]: Finished difference Result 130 states and 179 transitions. [2022-11-20 20:46:06,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 20:46:06,089 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 [2022-11-20 20:46:06,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:46:06,101 INFO L225 Difference]: With dead ends: 130 [2022-11-20 20:46:06,101 INFO L226 Difference]: Without dead ends: 61 [2022-11-20 20:46:06,105 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 [2022-11-20 20:46:06,109 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:46:06,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 68 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:46:06,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-11-20 20:46:06,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2022-11-20 20:46:06,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 39 states have (on average 1.358974358974359) internal successors, (53), 47 states have internal predecessors, (53), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-20 20:46:06,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 80 transitions. [2022-11-20 20:46:06,168 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 80 transitions. Word has length 21 [2022-11-20 20:46:06,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:46:06,169 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 80 transitions. [2022-11-20 20:46:06,170 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) [2022-11-20 20:46:06,170 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 80 transitions. [2022-11-20 20:46:06,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-20 20:46:06,173 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:46:06,173 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] [2022-11-20 20:46:06,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 20:46:06,174 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:46:06,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:46:06,175 INFO L85 PathProgramCache]: Analyzing trace with hash -1504177673, now seen corresponding path program 1 times [2022-11-20 20:46:06,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:46:06,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067699545] [2022-11-20 20:46:06,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:46:06,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:46:06,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:46:06,322 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 20:46:06,323 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:46:06,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067699545] [2022-11-20 20:46:06,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067699545] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:46:06,324 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:46:06,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:46:06,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084738876] [2022-11-20 20:46:06,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:46:06,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:46:06,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:46:06,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:46:06,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:46:06,328 INFO L87 Difference]: Start difference. First operand 61 states and 80 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 20:46:06,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:46:06,385 INFO L93 Difference]: Finished difference Result 94 states and 122 transitions. [2022-11-20 20:46:06,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:46:06,386 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 [2022-11-20 20:46:06,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:46:06,387 INFO L225 Difference]: With dead ends: 94 [2022-11-20 20:46:06,388 INFO L226 Difference]: Without dead ends: 53 [2022-11-20 20:46:06,388 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 [2022-11-20 20:46:06,390 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 14 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:46:06,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 92 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:46:06,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-11-20 20:46:06,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2022-11-20 20:46:06,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 34 states have (on average 1.3823529411764706) internal successors, (47), 42 states have internal predecessors, (47), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 8 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-20 20:46:06,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 69 transitions. [2022-11-20 20:46:06,403 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 69 transitions. Word has length 22 [2022-11-20 20:46:06,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:46:06,403 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 69 transitions. [2022-11-20 20:46:06,404 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) [2022-11-20 20:46:06,404 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 69 transitions. [2022-11-20 20:46:06,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-20 20:46:06,406 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:46:06,406 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:46:06,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 20:46:06,407 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:46:06,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:46:06,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1306375255, now seen corresponding path program 1 times [2022-11-20 20:46:06,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:46:06,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885265843] [2022-11-20 20:46:06,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:46:06,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:46:06,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:46:06,515 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 20:46:06,515 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:46:06,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885265843] [2022-11-20 20:46:06,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885265843] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:46:06,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:46:06,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:46:06,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997264704] [2022-11-20 20:46:06,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:46:06,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:46:06,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:46:06,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:46:06,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:46:06,520 INFO L87 Difference]: Start difference. First operand 53 states and 69 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 20:46:06,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:46:06,607 INFO L93 Difference]: Finished difference Result 155 states and 204 transitions. [2022-11-20 20:46:06,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:46:06,608 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2022-11-20 20:46:06,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:46:06,611 INFO L225 Difference]: With dead ends: 155 [2022-11-20 20:46:06,611 INFO L226 Difference]: Without dead ends: 104 [2022-11-20 20:46:06,612 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 [2022-11-20 20:46:06,613 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 61 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 20:46:06,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 125 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 20:46:06,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2022-11-20 20:46:06,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 101. [2022-11-20 20:46:06,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 64 states have (on average 1.390625) internal successors, (89), 79 states have internal predecessors, (89), 22 states have call successors, (22), 14 states have call predecessors, (22), 14 states have return successors, (22), 15 states have call predecessors, (22), 22 states have call successors, (22) [2022-11-20 20:46:06,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 133 transitions. [2022-11-20 20:46:06,655 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 133 transitions. Word has length 25 [2022-11-20 20:46:06,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:46:06,656 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 133 transitions. [2022-11-20 20:46:06,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 20:46:06,657 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 133 transitions. [2022-11-20 20:46:06,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-20 20:46:06,660 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:46:06,661 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:46:06,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 20:46:06,662 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:46:06,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:46:06,665 INFO L85 PathProgramCache]: Analyzing trace with hash 449860244, now seen corresponding path program 1 times [2022-11-20 20:46:06,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:46:06,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861096741] [2022-11-20 20:46:06,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:46:06,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:46:06,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:46:07,005 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 20:46:07,007 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:46:07,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861096741] [2022-11-20 20:46:07,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861096741] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:46:07,007 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:46:07,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 20:46:07,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114106598] [2022-11-20 20:46:07,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:46:07,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 20:46:07,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:46:07,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 20:46:07,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 20:46:07,014 INFO L87 Difference]: Start difference. First operand 101 states and 133 transitions. Second operand has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 20:46:07,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:46:07,309 INFO L93 Difference]: Finished difference Result 282 states and 381 transitions. [2022-11-20 20:46:07,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 20:46:07,310 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2022-11-20 20:46:07,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:46:07,312 INFO L225 Difference]: With dead ends: 282 [2022-11-20 20:46:07,316 INFO L226 Difference]: Without dead ends: 183 [2022-11-20 20:46:07,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-20 20:46:07,322 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 35 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 20:46:07,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 279 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 20:46:07,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2022-11-20 20:46:07,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 174. [2022-11-20 20:46:07,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 115 states have (on average 1.3130434782608695) internal successors, (151), 130 states have internal predecessors, (151), 32 states have call successors, (32), 26 states have call predecessors, (32), 26 states have return successors, (40), 29 states have call predecessors, (40), 32 states have call successors, (40) [2022-11-20 20:46:07,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 223 transitions. [2022-11-20 20:46:07,379 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 223 transitions. Word has length 28 [2022-11-20 20:46:07,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:46:07,380 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 223 transitions. [2022-11-20 20:46:07,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 20:46:07,380 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 223 transitions. [2022-11-20 20:46:07,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-20 20:46:07,388 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:46:07,388 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:46:07,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 20:46:07,389 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:46:07,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:46:07,392 INFO L85 PathProgramCache]: Analyzing trace with hash -725331525, now seen corresponding path program 1 times [2022-11-20 20:46:07,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:46:07,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068549164] [2022-11-20 20:46:07,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:46:07,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:46:07,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:46:07,798 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 20:46:07,799 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:46:07,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068549164] [2022-11-20 20:46:07,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068549164] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:46:07,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:46:07,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 20:46:07,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337617452] [2022-11-20 20:46:07,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:46:07,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 20:46:07,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:46:07,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 20:46:07,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 20:46:07,803 INFO L87 Difference]: Start difference. First operand 174 states and 223 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 20:46:08,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:46:08,085 INFO L93 Difference]: Finished difference Result 526 states and 678 transitions. [2022-11-20 20:46:08,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 20:46:08,086 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 33 [2022-11-20 20:46:08,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:46:08,090 INFO L225 Difference]: With dead ends: 526 [2022-11-20 20:46:08,090 INFO L226 Difference]: Without dead ends: 354 [2022-11-20 20:46:08,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-11-20 20:46:08,093 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 123 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 20:46:08,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 243 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 20:46:08,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2022-11-20 20:46:08,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 340. [2022-11-20 20:46:08,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 227 states have (on average 1.2995594713656389) internal successors, (295), 251 states have internal predecessors, (295), 61 states have call successors, (61), 51 states have call predecessors, (61), 51 states have return successors, (79), 54 states have call predecessors, (79), 61 states have call successors, (79) [2022-11-20 20:46:08,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 435 transitions. [2022-11-20 20:46:08,161 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 435 transitions. Word has length 33 [2022-11-20 20:46:08,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:46:08,162 INFO L495 AbstractCegarLoop]: Abstraction has 340 states and 435 transitions. [2022-11-20 20:46:08,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 20:46:08,163 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 435 transitions. [2022-11-20 20:46:08,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-20 20:46:08,168 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:46:08,168 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:46:08,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 20:46:08,169 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:46:08,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:46:08,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1118806752, now seen corresponding path program 1 times [2022-11-20 20:46:08,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:46:08,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486308122] [2022-11-20 20:46:08,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:46:08,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:46:08,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:46:08,556 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 20:46:08,557 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:46:08,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486308122] [2022-11-20 20:46:08,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486308122] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:46:08,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:46:08,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 20:46:08,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024733428] [2022-11-20 20:46:08,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:46:08,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 20:46:08,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:46:08,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 20:46:08,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-20 20:46:08,561 INFO L87 Difference]: Start difference. First operand 340 states and 435 transitions. Second operand has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 4 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 20:46:09,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:46:09,241 INFO L93 Difference]: Finished difference Result 842 states and 1113 transitions. [2022-11-20 20:46:09,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-20 20:46:09,242 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 4 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 36 [2022-11-20 20:46:09,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:46:09,254 INFO L225 Difference]: With dead ends: 842 [2022-11-20 20:46:09,255 INFO L226 Difference]: Without dead ends: 606 [2022-11-20 20:46:09,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2022-11-20 20:46:09,266 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 233 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 20:46:09,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 259 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 20:46:09,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2022-11-20 20:46:09,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 508. [2022-11-20 20:46:09,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 344 states have (on average 1.2936046511627908) internal successors, (445), 380 states have internal predecessors, (445), 88 states have call successors, (88), 66 states have call predecessors, (88), 75 states have return successors, (119), 85 states have call predecessors, (119), 88 states have call successors, (119) [2022-11-20 20:46:09,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 652 transitions. [2022-11-20 20:46:09,378 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 652 transitions. Word has length 36 [2022-11-20 20:46:09,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:46:09,381 INFO L495 AbstractCegarLoop]: Abstraction has 508 states and 652 transitions. [2022-11-20 20:46:09,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 4 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 20:46:09,381 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 652 transitions. [2022-11-20 20:46:09,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-20 20:46:09,386 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:46:09,387 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:46:09,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 20:46:09,387 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:46:09,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:46:09,390 INFO L85 PathProgramCache]: Analyzing trace with hash -413741743, now seen corresponding path program 1 times [2022-11-20 20:46:09,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:46:09,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183745975] [2022-11-20 20:46:09,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:46:09,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:46:09,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:46:09,455 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 20:46:09,456 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:46:09,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183745975] [2022-11-20 20:46:09,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183745975] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:46:09,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:46:09,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 20:46:09,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71413892] [2022-11-20 20:46:09,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:46:09,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:46:09,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:46:09,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:46:09,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:46:09,460 INFO L87 Difference]: Start difference. First operand 508 states and 652 transitions. Second operand has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2022-11-20 20:46:09,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:46:09,637 INFO L93 Difference]: Finished difference Result 856 states and 1096 transitions. [2022-11-20 20:46:09,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 20:46:09,639 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) Word has length 58 [2022-11-20 20:46:09,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:46:09,641 INFO L225 Difference]: With dead ends: 856 [2022-11-20 20:46:09,642 INFO L226 Difference]: Without dead ends: 350 [2022-11-20 20:46:09,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:46:09,650 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 92 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 20:46:09,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 124 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 20:46:09,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2022-11-20 20:46:09,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 344. [2022-11-20 20:46:09,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 234 states have (on average 1.2692307692307692) internal successors, (297), 259 states have internal predecessors, (297), 59 states have call successors, (59), 46 states have call predecessors, (59), 50 states have return successors, (74), 57 states have call predecessors, (74), 59 states have call successors, (74) [2022-11-20 20:46:09,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 430 transitions. [2022-11-20 20:46:09,737 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 430 transitions. Word has length 58 [2022-11-20 20:46:09,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:46:09,738 INFO L495 AbstractCegarLoop]: Abstraction has 344 states and 430 transitions. [2022-11-20 20:46:09,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2022-11-20 20:46:09,738 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 430 transitions. [2022-11-20 20:46:09,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-20 20:46:09,740 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:46:09,740 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:46:09,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 20:46:09,741 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:46:09,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:46:09,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1227620174, now seen corresponding path program 1 times [2022-11-20 20:46:09,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:46:09,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719798709] [2022-11-20 20:46:09,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:46:09,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:46:09,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:46:09,861 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-20 20:46:09,861 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:46:09,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719798709] [2022-11-20 20:46:09,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719798709] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 20:46:09,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2091334981] [2022-11-20 20:46:09,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:46:09,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:46:09,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb5af97-8862-4753-9181-f6458a63dcef/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:46:09,875 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb5af97-8862-4753-9181-f6458a63dcef/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 20:46:09,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb5af97-8862-4753-9181-f6458a63dcef/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 20:46:10,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:46:10,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:46:10,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:46:10,136 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 20:46:10,136 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:46:10,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2091334981] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:46:10,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 20:46:10,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-11-20 20:46:10,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659410205] [2022-11-20 20:46:10,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:46:10,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:46:10,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:46:10,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:46:10,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-11-20 20:46:10,141 INFO L87 Difference]: Start difference. First operand 344 states and 430 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-20 20:46:10,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:46:10,235 INFO L93 Difference]: Finished difference Result 613 states and 771 transitions. [2022-11-20 20:46:10,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:46:10,236 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 62 [2022-11-20 20:46:10,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:46:10,239 INFO L225 Difference]: With dead ends: 613 [2022-11-20 20:46:10,239 INFO L226 Difference]: Without dead ends: 334 [2022-11-20 20:46:10,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-11-20 20:46:10,242 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 33 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:46:10,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 121 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:46:10,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2022-11-20 20:46:10,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 334. [2022-11-20 20:46:10,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 227 states have (on average 1.2378854625550662) internal successors, (281), 250 states have internal predecessors, (281), 57 states have call successors, (57), 46 states have call predecessors, (57), 49 states have return successors, (64), 55 states have call predecessors, (64), 57 states have call successors, (64) [2022-11-20 20:46:10,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 402 transitions. [2022-11-20 20:46:10,298 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 402 transitions. Word has length 62 [2022-11-20 20:46:10,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:46:10,299 INFO L495 AbstractCegarLoop]: Abstraction has 334 states and 402 transitions. [2022-11-20 20:46:10,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-20 20:46:10,299 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 402 transitions. [2022-11-20 20:46:10,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-20 20:46:10,302 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:46:10,303 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:46:10,316 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb5af97-8862-4753-9181-f6458a63dcef/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 20:46:10,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb5af97-8862-4753-9181-f6458a63dcef/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-20 20:46:10,510 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:46:10,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:46:10,511 INFO L85 PathProgramCache]: Analyzing trace with hash 2059739450, now seen corresponding path program 1 times [2022-11-20 20:46:10,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:46:10,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831670707] [2022-11-20 20:46:10,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:46:10,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:46:10,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:46:10,721 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 20:46:10,721 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:46:10,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831670707] [2022-11-20 20:46:10,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831670707] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 20:46:10,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1640612625] [2022-11-20 20:46:10,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:46:10,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:46:10,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb5af97-8862-4753-9181-f6458a63dcef/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:46:10,724 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb5af97-8862-4753-9181-f6458a63dcef/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 20:46:10,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb5af97-8862-4753-9181-f6458a63dcef/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 20:46:10,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:46:10,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 20:46:10,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:46:11,045 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 19 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 20:46:11,045 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:46:11,263 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 20:46:11,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1640612625] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:46:11,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [390690766] [2022-11-20 20:46:11,294 INFO L159 IcfgInterpreter]: Started Sifa with 42 locations of interest [2022-11-20 20:46:11,295 INFO L166 IcfgInterpreter]: Building call graph [2022-11-20 20:46:11,300 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-20 20:46:11,308 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-20 20:46:11,309 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-20 20:46:15,674 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 50 for LOIs [2022-11-20 20:46:15,689 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 34 for LOIs [2022-11-20 20:46:15,955 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 53 for LOIs [2022-11-20 20:46:15,968 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 73 for LOIs [2022-11-20 20:46:16,278 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 48 for LOIs [2022-11-20 20:46:16,283 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-20 20:46:22,028 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '9062#(and (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1| 0)) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~4#1| 2)) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1|) (= ~methaneLevelCritical~0 0) (= |timeShift_getWaterLevel_~retValue_acc~5#1| |timeShift_getWaterLevel_#res#1|) (<= 0 (+ 2147483648 |old(~pumpRunning~0)|)) (= ~head~0.offset 0) (<= |old(~switchedOnBeforeTS~0)| 2147483647) (<= |old(~pumpRunning~0)| 2147483647) (= 1 ~systemActive~0) (= |timeShift_getWaterLevel_~retValue_acc~5#1| ~waterLevel~0) (<= 0 (+ |old(~switchedOnBeforeTS~0)| 2147483648)) (<= 0 (+ 2147483648 |timeShift_getWaterLevel_#res#1|)) (<= 0 (+ |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1| 2147483648)) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1| 2147483647) (= ~head~0.base 0) (= |#NULL.offset| 0) (= |timeShift___utac_acc__Specification5_spec__3_~tmp~4#1| |timeShift_getWaterLevel_#res#1|) (<= |timeShift_getWaterLevel_~retValue_acc~5#1| 2147483647) (= ~switchedOnBeforeTS~0 0) (<= 0 |#StackHeapBarrier|) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-11-20 20:46:22,029 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-20 20:46:22,029 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 20:46:22,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6, 6] total 15 [2022-11-20 20:46:22,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186823428] [2022-11-20 20:46:22,030 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 20:46:22,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-20 20:46:22,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:46:22,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-20 20:46:22,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=282, Invalid=1974, Unknown=0, NotChecked=0, Total=2256 [2022-11-20 20:46:22,033 INFO L87 Difference]: Start difference. First operand 334 states and 402 transitions. Second operand has 15 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 13 states have internal predecessors, (80), 7 states have call successors, (19), 4 states have call predecessors, (19), 8 states have return successors, (17), 8 states have call predecessors, (17), 7 states have call successors, (17) [2022-11-20 20:46:23,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:46:23,144 INFO L93 Difference]: Finished difference Result 482 states and 593 transitions. [2022-11-20 20:46:23,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-20 20:46:23,145 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 13 states have internal predecessors, (80), 7 states have call successors, (19), 4 states have call predecessors, (19), 8 states have return successors, (17), 8 states have call predecessors, (17), 7 states have call successors, (17) Word has length 65 [2022-11-20 20:46:23,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:46:23,148 INFO L225 Difference]: With dead ends: 482 [2022-11-20 20:46:23,148 INFO L226 Difference]: Without dead ends: 480 [2022-11-20 20:46:23,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 159 SyntacticMatches, 4 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1513 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=510, Invalid=3912, Unknown=0, NotChecked=0, Total=4422 [2022-11-20 20:46:23,150 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 336 mSDsluCounter, 760 mSDsCounter, 0 mSdLazyCounter, 705 mSolverCounterSat, 221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 901 SdHoareTripleChecker+Invalid, 926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-20 20:46:23,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [341 Valid, 901 Invalid, 926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 705 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-20 20:46:23,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2022-11-20 20:46:23,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 398. [2022-11-20 20:46:23,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 268 states have (on average 1.2388059701492538) internal successors, (332), 299 states have internal predecessors, (332), 69 states have call successors, (69), 57 states have call predecessors, (69), 60 states have return successors, (80), 65 states have call predecessors, (80), 69 states have call successors, (80) [2022-11-20 20:46:23,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 481 transitions. [2022-11-20 20:46:23,187 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 481 transitions. Word has length 65 [2022-11-20 20:46:23,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:46:23,188 INFO L495 AbstractCegarLoop]: Abstraction has 398 states and 481 transitions. [2022-11-20 20:46:23,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 13 states have internal predecessors, (80), 7 states have call successors, (19), 4 states have call predecessors, (19), 8 states have return successors, (17), 8 states have call predecessors, (17), 7 states have call successors, (17) [2022-11-20 20:46:23,188 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 481 transitions. [2022-11-20 20:46:23,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-20 20:46:23,190 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:46:23,190 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:46:23,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb5af97-8862-4753-9181-f6458a63dcef/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 20:46:23,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb5af97-8862-4753-9181-f6458a63dcef/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:46:23,396 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:46:23,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:46:23,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1549129254, now seen corresponding path program 1 times [2022-11-20 20:46:23,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:46:23,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146924981] [2022-11-20 20:46:23,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:46:23,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:46:23,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:46:23,770 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 35 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-20 20:46:23,771 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:46:23,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146924981] [2022-11-20 20:46:23,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146924981] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 20:46:23,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1746326650] [2022-11-20 20:46:23,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:46:23,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:46:23,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb5af97-8862-4753-9181-f6458a63dcef/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:46:23,773 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb5af97-8862-4753-9181-f6458a63dcef/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 20:46:23,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb5af97-8862-4753-9181-f6458a63dcef/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 20:46:23,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:46:23,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-20 20:46:23,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:46:24,169 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 61 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 20:46:24,169 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:46:24,495 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 48 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-20 20:46:24,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1746326650] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:46:24,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1774404197] [2022-11-20 20:46:24,497 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2022-11-20 20:46:24,498 INFO L166 IcfgInterpreter]: Building call graph [2022-11-20 20:46:24,498 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-20 20:46:24,498 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-20 20:46:24,498 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-20 20:46:27,997 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 53 for LOIs [2022-11-20 20:46:28,006 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 36 for LOIs [2022-11-20 20:46:28,439 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 29 for LOIs [2022-11-20 20:46:28,441 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 26 for LOIs [2022-11-20 20:46:28,460 INFO L197 IcfgInterpreter]: Interpreting procedure deactivatePump with input of size 35 for LOIs [2022-11-20 20:46:28,463 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-20 20:46:34,474 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '11022#(and (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1| 0)) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~4#1| 2)) (<= 0 |old(~pumpRunning~0)|) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1| 1) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1|) (<= |old(~pumpRunning~0)| 1) (= |timeShift_getWaterLevel_~retValue_acc~5#1| |timeShift_getWaterLevel_#res#1|) (= ~head~0.offset 0) (<= 1 ~systemActive~0) (<= |old(~switchedOnBeforeTS~0)| 2147483647) (<= |#NULL.offset| 0) (= |timeShift_getWaterLevel_~retValue_acc~5#1| ~waterLevel~0) (<= ~methaneLevelCritical~0 0) (<= 0 ~head~0.base) (<= 0 (+ |old(~switchedOnBeforeTS~0)| 2147483648)) (<= 0 (+ 2147483648 |timeShift_getWaterLevel_#res#1|)) (<= 0 ~methaneLevelCritical~0) (<= 0 ~pumpRunning~0) (<= ~head~0.base 0) (= |timeShift___utac_acc__Specification5_spec__3_~tmp~4#1| |timeShift_getWaterLevel_#res#1|) (<= 0 |#NULL.offset|) (<= |timeShift_getWaterLevel_~retValue_acc~5#1| 2147483647) (= ~switchedOnBeforeTS~0 0) (<= 0 |#StackHeapBarrier|) (<= ~systemActive~0 1) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-11-20 20:46:34,474 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-20 20:46:34,474 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 20:46:34,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 9] total 20 [2022-11-20 20:46:34,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901506745] [2022-11-20 20:46:34,475 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 20:46:34,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-20 20:46:34,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:46:34,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-20 20:46:34,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=295, Invalid=2461, Unknown=0, NotChecked=0, Total=2756 [2022-11-20 20:46:34,477 INFO L87 Difference]: Start difference. First operand 398 states and 481 transitions. Second operand has 20 states, 20 states have (on average 5.35) internal successors, (107), 20 states have internal predecessors, (107), 9 states have call successors, (21), 5 states have call predecessors, (21), 8 states have return successors, (22), 10 states have call predecessors, (22), 9 states have call successors, (22) [2022-11-20 20:46:36,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:46:36,288 INFO L93 Difference]: Finished difference Result 1256 states and 1664 transitions. [2022-11-20 20:46:36,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-20 20:46:36,289 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.35) internal successors, (107), 20 states have internal predecessors, (107), 9 states have call successors, (21), 5 states have call predecessors, (21), 8 states have return successors, (22), 10 states have call predecessors, (22), 9 states have call successors, (22) Word has length 86 [2022-11-20 20:46:36,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:46:36,295 INFO L225 Difference]: With dead ends: 1256 [2022-11-20 20:46:36,300 INFO L226 Difference]: Without dead ends: 852 [2022-11-20 20:46:36,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 232 SyntacticMatches, 1 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2196 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=667, Invalid=5653, Unknown=0, NotChecked=0, Total=6320 [2022-11-20 20:46:36,304 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 601 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 949 mSolverCounterSat, 320 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 606 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 1269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 320 IncrementalHoareTripleChecker+Valid, 949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-20 20:46:36,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [606 Valid, 457 Invalid, 1269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [320 Valid, 949 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-20 20:46:36,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 852 states. [2022-11-20 20:46:36,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 852 to 513. [2022-11-20 20:46:36,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 349 states have (on average 1.2120343839541547) internal successors, (423), 384 states have internal predecessors, (423), 82 states have call successors, (82), 75 states have call predecessors, (82), 81 states have return successors, (99), 83 states have call predecessors, (99), 82 states have call successors, (99) [2022-11-20 20:46:36,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 604 transitions. [2022-11-20 20:46:36,370 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 604 transitions. Word has length 86 [2022-11-20 20:46:36,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:46:36,371 INFO L495 AbstractCegarLoop]: Abstraction has 513 states and 604 transitions. [2022-11-20 20:46:36,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.35) internal successors, (107), 20 states have internal predecessors, (107), 9 states have call successors, (21), 5 states have call predecessors, (21), 8 states have return successors, (22), 10 states have call predecessors, (22), 9 states have call successors, (22) [2022-11-20 20:46:36,371 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 604 transitions. [2022-11-20 20:46:36,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-20 20:46:36,373 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:46:36,373 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:46:36,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb5af97-8862-4753-9181-f6458a63dcef/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-20 20:46:36,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb5af97-8862-4753-9181-f6458a63dcef/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-20 20:46:36,584 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:46:36,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:46:36,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1947446970, now seen corresponding path program 1 times [2022-11-20 20:46:36,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:46:36,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675769239] [2022-11-20 20:46:36,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:46:36,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:46:36,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:46:37,424 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 10 proven. 44 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-20 20:46:37,424 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:46:37,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675769239] [2022-11-20 20:46:37,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675769239] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 20:46:37,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [834728369] [2022-11-20 20:46:37,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:46:37,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:46:37,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb5af97-8862-4753-9181-f6458a63dcef/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:46:37,426 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb5af97-8862-4753-9181-f6458a63dcef/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 20:46:37,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb5af97-8862-4753-9181-f6458a63dcef/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-20 20:46:37,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:46:37,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-20 20:46:37,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:46:37,936 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 37 proven. 40 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 20:46:37,936 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:46:38,602 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 52 proven. 5 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-20 20:46:38,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [834728369] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:46:38,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2087195414] [2022-11-20 20:46:38,604 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2022-11-20 20:46:38,605 INFO L166 IcfgInterpreter]: Building call graph [2022-11-20 20:46:38,605 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-20 20:46:38,605 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-20 20:46:38,605 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-20 20:46:40,679 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 43 for LOIs [2022-11-20 20:46:40,686 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 46 for LOIs [2022-11-20 20:46:41,684 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 22 for LOIs [2022-11-20 20:46:41,686 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 29 for LOIs [2022-11-20 20:46:41,707 INFO L197 IcfgInterpreter]: Interpreting procedure deactivatePump with input of size 56 for LOIs [2022-11-20 20:46:41,715 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-20 20:46:48,294 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '14399#(and (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1| 0)) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~4#1| 2)) (<= 0 |old(~pumpRunning~0)|) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1| 1) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1|) (= |timeShift_getWaterLevel_~retValue_acc~5#1| |timeShift_getWaterLevel_#res#1|) (= ~head~0.offset 0) (<= 1 ~systemActive~0) (<= |old(~pumpRunning~0)| 2147483647) (<= |#NULL.offset| 0) (= |timeShift_getWaterLevel_~retValue_acc~5#1| ~waterLevel~0) (<= ~methaneLevelCritical~0 0) (<= 0 ~head~0.base) (<= 0 (+ 2147483648 |timeShift_getWaterLevel_#res#1|)) (<= 0 ~methaneLevelCritical~0) (<= 0 ~pumpRunning~0) (<= ~head~0.base 0) (= |timeShift___utac_acc__Specification5_spec__3_~tmp~4#1| |timeShift_getWaterLevel_#res#1|) (<= 0 |#NULL.offset|) (<= |timeShift_getWaterLevel_~retValue_acc~5#1| 2147483647) (= ~switchedOnBeforeTS~0 0) (<= 0 |#StackHeapBarrier|) (<= ~systemActive~0 1) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-11-20 20:46:48,294 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-20 20:46:48,294 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 20:46:48,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 13, 11] total 36 [2022-11-20 20:46:48,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977872222] [2022-11-20 20:46:48,295 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 20:46:48,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-11-20 20:46:48,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:46:48,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-11-20 20:46:48,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=470, Invalid=4086, Unknown=0, NotChecked=0, Total=4556 [2022-11-20 20:46:48,298 INFO L87 Difference]: Start difference. First operand 513 states and 604 transitions. Second operand has 36 states, 33 states have (on average 4.848484848484849) internal successors, (160), 35 states have internal predecessors, (160), 19 states have call successors, (32), 9 states have call predecessors, (32), 14 states have return successors, (29), 17 states have call predecessors, (29), 18 states have call successors, (29) [2022-11-20 20:46:52,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:46:52,577 INFO L93 Difference]: Finished difference Result 1466 states and 1774 transitions. [2022-11-20 20:46:52,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-11-20 20:46:52,579 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 33 states have (on average 4.848484848484849) internal successors, (160), 35 states have internal predecessors, (160), 19 states have call successors, (32), 9 states have call predecessors, (32), 14 states have return successors, (29), 17 states have call predecessors, (29), 18 states have call successors, (29) Word has length 91 [2022-11-20 20:46:52,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:46:52,580 INFO L225 Difference]: With dead ends: 1466 [2022-11-20 20:46:52,580 INFO L226 Difference]: Without dead ends: 0 [2022-11-20 20:46:52,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 375 GetRequests, 254 SyntacticMatches, 3 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5313 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=1685, Invalid=12595, Unknown=0, NotChecked=0, Total=14280 [2022-11-20 20:46:52,586 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 1814 mSDsluCounter, 1151 mSDsCounter, 0 mSdLazyCounter, 2544 mSolverCounterSat, 1204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1818 SdHoareTripleChecker+Valid, 1304 SdHoareTripleChecker+Invalid, 3748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1204 IncrementalHoareTripleChecker+Valid, 2544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-20 20:46:52,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1818 Valid, 1304 Invalid, 3748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1204 Valid, 2544 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-20 20:46:52,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-20 20:46:52,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-20 20:46:52,587 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) [2022-11-20 20:46:52,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-20 20:46:52,588 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 91 [2022-11-20 20:46:52,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:46:52,588 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 20:46:52,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 33 states have (on average 4.848484848484849) internal successors, (160), 35 states have internal predecessors, (160), 19 states have call successors, (32), 9 states have call predecessors, (32), 14 states have return successors, (29), 17 states have call predecessors, (29), 18 states have call successors, (29) [2022-11-20 20:46:52,589 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-20 20:46:52,589 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 20:46:52,591 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-20 20:46:52,602 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb5af97-8862-4753-9181-f6458a63dcef/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-20 20:46:52,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb5af97-8862-4753-9181-f6458a63dcef/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:46:52,804 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-20 20:47:03,032 INFO L895 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 860 867) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (= ~pumpRunning~0 1))) (and (or .cse0 .cse1 (not (<= 1 ~switchedOnBeforeTS~0)) (not (< ~waterLevel~0 3)) .cse2) (or .cse0 (not (<= 2 ~waterLevel~0)) .cse1 (not (<= ~waterLevel~0 2)) .cse2))) [2022-11-20 20:47:03,032 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 860 867) no Hoare annotation was computed. [2022-11-20 20:47:03,033 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 793 799) no Hoare annotation was computed. [2022-11-20 20:47:03,033 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 793 799) the Hoare annotation is: true [2022-11-20 20:47:03,033 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 613 624) the Hoare annotation is: true [2022-11-20 20:47:03,033 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 613 624) no Hoare annotation was computed. [2022-11-20 20:47:03,033 INFO L899 garLoopResultBuilder]: For program point L564(lines 564 574) no Hoare annotation was computed. [2022-11-20 20:47:03,033 INFO L899 garLoopResultBuilder]: For program point L560(lines 560 577) no Hoare annotation was computed. [2022-11-20 20:47:03,034 INFO L895 garLoopResultBuilder]: At program point L560-1(lines 552 580) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse2 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~4#1| ~waterLevel~0)) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse0 (not (<= |old(~waterLevel~0)| 1))) (.cse6 (<= 1 ~switchedOnBeforeTS~0)) (.cse9 (not (= |old(~pumpRunning~0)| 1))) (.cse10 (not (= |old(~pumpRunning~0)| 0))) (.cse7 (not (= 1 ~systemActive~0))) (.cse11 (and .cse1 .cse2 .cse4)) (.cse8 (= ~pumpRunning~0 1)) (.cse12 (not (< |old(~waterLevel~0)| 3)))) (and (let ((.cse3 (< 0 |old(~waterLevel~0)|))) (let ((.cse5 (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse3))) (or .cse0 (and .cse1 .cse2 (or (and (not .cse3) .cse4) .cse5) .cse6) .cse7 (and .cse2 (<= ~waterLevel~0 0) (or .cse5 .cse4) .cse6 .cse8) .cse9 (not (<= 1 |old(~switchedOnBeforeTS~0)|))))) (or .cse0 .cse10 .cse7 .cse11) (or .cse10 (and .cse1 (<= ~waterLevel~0 |timeShift___utac_acc__Specification5_spec__3_~tmp~4#1|) .cse4 (<= |timeShift___utac_acc__Specification5_spec__3_~tmp~4#1| ~waterLevel~0)) (not (= 0 ~systemActive~0)) .cse12) (let ((.cse13 (= ~waterLevel~0 1))) (or .cse7 (and .cse2 .cse13 .cse6 .cse8) (and .cse1 .cse2 .cse13 .cse6) .cse9 (not (<= |old(~waterLevel~0)| 2)) (not (<= 2 |old(~waterLevel~0)|)))) (or .cse10 .cse7 .cse11 (and .cse2 .cse4 .cse8) .cse12)))) [2022-11-20 20:47:03,034 INFO L895 garLoopResultBuilder]: At program point L841(line 841) the Hoare annotation is: (let ((.cse3 (not (= |old(~pumpRunning~0)| 1))) (.cse4 (<= 1 ~switchedOnBeforeTS~0)) (.cse5 (= ~pumpRunning~0 1)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse1 (not (< |old(~waterLevel~0)| 3)))) (and (or .cse0 (not (= 0 ~systemActive~0)) .cse1) (or .cse2 .cse3 (and (= ~waterLevel~0 1) .cse4 .cse5) (not (<= |old(~waterLevel~0)| 2)) (not (<= 2 |old(~waterLevel~0)|))) (or (not (<= |old(~waterLevel~0)| 1)) .cse2 .cse3 (and (<= ~waterLevel~0 0) (or (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) (< 0 |old(~waterLevel~0)|)) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse4 .cse5) (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse0 .cse2 .cse1))) [2022-11-20 20:47:03,035 INFO L895 garLoopResultBuilder]: At program point L837(line 837) the Hoare annotation is: (let ((.cse3 (not (= |old(~pumpRunning~0)| 1))) (.cse4 (<= 1 ~switchedOnBeforeTS~0)) (.cse5 (= ~pumpRunning~0 1)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse1 (not (< |old(~waterLevel~0)| 3)))) (and (or .cse0 (not (= 0 ~systemActive~0)) .cse1) (or .cse2 .cse3 (and (= ~waterLevel~0 1) .cse4 .cse5) (not (<= |old(~waterLevel~0)| 2)) (not (<= 2 |old(~waterLevel~0)|))) (or (not (<= |old(~waterLevel~0)| 1)) .cse2 .cse3 (and (<= ~waterLevel~0 0) (or (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) (< 0 |old(~waterLevel~0)|)) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse4 .cse5) (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse0 .cse2 .cse1))) [2022-11-20 20:47:03,035 INFO L899 garLoopResultBuilder]: For program point L565(lines 565 571) no Hoare annotation was computed. [2022-11-20 20:47:03,035 INFO L895 garLoopResultBuilder]: At program point L846(line 846) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (< |old(~waterLevel~0)| 3))) (.cse2 (not (= 1 ~systemActive~0))) (.cse4 (not (= |old(~pumpRunning~0)| 1))) (.cse3 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 (not (= 0 ~systemActive~0)) .cse1) (or .cse0 (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse2 .cse3) (or .cse2 .cse4 (not (<= 1 |old(~switchedOnBeforeTS~0)|)) .cse1) (or .cse2 .cse4 .cse3 (not (<= 2 |old(~waterLevel~0)|))))) [2022-11-20 20:47:03,036 INFO L895 garLoopResultBuilder]: At program point L846-1(lines 827 851) the Hoare annotation is: (let ((.cse8 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse1 (not (< |old(~waterLevel~0)| 3))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse3 (not (= |old(~pumpRunning~0)| 1))) (.cse7 (= ~pumpRunning~0 0)) (.cse5 (<= 1 ~switchedOnBeforeTS~0)) (.cse6 (= ~pumpRunning~0 1)) (.cse9 (not (<= 1 |old(~switchedOnBeforeTS~0)|)))) (and (or .cse0 (not (= 0 ~systemActive~0)) .cse1) (let ((.cse4 (= ~waterLevel~0 1))) (or .cse2 .cse3 (and .cse4 .cse5 .cse6) (not (<= |old(~waterLevel~0)| 2)) (not (<= 2 |old(~waterLevel~0)|)) (and .cse7 .cse4 .cse5))) (or .cse2 .cse3 (and .cse7 .cse8 .cse5) (and .cse8 .cse5 .cse6) (not (<= |old(~waterLevel~0)| 0)) .cse9) (or .cse0 (and .cse7 .cse8) .cse2 (and .cse8 .cse6) .cse1) (or (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse7 .cse2) (let ((.cse10 (= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) (.cse11 (< 0 |old(~waterLevel~0)|))) (or (not (= |old(~waterLevel~0)| 1)) .cse2 .cse3 (and .cse7 .cse10 .cse11 .cse5) (and .cse10 .cse11 .cse5 .cse6) .cse9)))) [2022-11-20 20:47:03,036 INFO L895 garLoopResultBuilder]: At program point L780-1(lines 780 786) the Hoare annotation is: (let ((.cse6 (= ~pumpRunning~0 0)) (.cse9 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse5 (not (<= |old(~waterLevel~0)| 2))) (.cse8 (and .cse6 .cse9)) (.cse7 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse3 (<= 1 ~switchedOnBeforeTS~0)) (.cse4 (= ~pumpRunning~0 1)) (.cse10 (not (<= 1 |old(~switchedOnBeforeTS~0)|)))) (and (let ((.cse2 (= ~waterLevel~0 1))) (or .cse0 .cse1 (and .cse2 .cse3 .cse4) .cse5 (not (<= 2 |old(~waterLevel~0)|)) (and .cse6 .cse2 .cse3))) (or .cse7 .cse8 .cse5 (not (= 0 ~systemActive~0))) (or .cse0 .cse1 (and .cse6 .cse9 .cse3) (and .cse9 .cse3 .cse4) (not (<= |old(~waterLevel~0)| 0)) .cse10) (or .cse7 .cse8 .cse0 (and .cse9 .cse4) (not (< |old(~waterLevel~0)| 3))) (or (not (<= |old(~waterLevel~0)| 1)) .cse7 .cse6 .cse0) (let ((.cse11 (= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) (.cse12 (< 0 |old(~waterLevel~0)|))) (or (not (= |old(~waterLevel~0)| 1)) .cse0 .cse1 (and .cse6 .cse11 .cse12 .cse3) (and .cse11 .cse12 .cse3 .cse4) .cse10))))) [2022-11-20 20:47:03,037 INFO L895 garLoopResultBuilder]: At program point L562(line 562) the Hoare annotation is: (let ((.cse8 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (.cse10 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse13 (not (= 0 ~systemActive~0))) (.cse11 (not (< |old(~waterLevel~0)| 3))) (.cse9 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (not (= 1 ~systemActive~0))) (.cse7 (= ~pumpRunning~0 1)) (.cse0 (= ~pumpRunning~0 0)) (.cse3 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~4#1| ~waterLevel~0)) (.cse4 (<= 1 ~switchedOnBeforeTS~0)) (.cse6 (not (= |old(~pumpRunning~0)| 1))) (.cse12 (not (<= |old(~waterLevel~0)| 2))) (.cse14 (not (<= 2 |old(~waterLevel~0)|)))) (and (let ((.cse1 (= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) (.cse2 (< 0 |old(~waterLevel~0)|))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (not (= |old(~waterLevel~0)| 1)) .cse5 .cse6 (and .cse1 .cse2 .cse3 .cse4 .cse7) .cse8)) (or .cse9 .cse5 (and .cse0 .cse3 .cse10) .cse11) (or .cse5 .cse6 (and .cse3 .cse10 .cse4 .cse7) (not (<= |old(~waterLevel~0)| 0)) (and .cse0 .cse3 .cse10 .cse4) .cse8) (or .cse9 .cse12 .cse13 .cse14) (or .cse9 (and .cse0 (<= ~waterLevel~0 |timeShift___utac_acc__Specification5_spec__3_~tmp~4#1|) .cse10 (<= |timeShift___utac_acc__Specification5_spec__3_~tmp~4#1| ~waterLevel~0)) .cse13 .cse11) (or .cse9 .cse5 .cse12 .cse14) (let ((.cse15 (= ~waterLevel~0 1))) (or .cse5 (and .cse3 .cse15 .cse4 .cse7) (and .cse0 .cse3 .cse15 .cse4) .cse6 .cse12 .cse14)))) [2022-11-20 20:47:03,037 INFO L899 garLoopResultBuilder]: For program point L562-1(line 562) no Hoare annotation was computed. [2022-11-20 20:47:03,037 INFO L899 garLoopResultBuilder]: For program point L773-2(lines 769 791) no Hoare annotation was computed. [2022-11-20 20:47:03,037 INFO L899 garLoopResultBuilder]: For program point L835(lines 835 843) no Hoare annotation was computed. [2022-11-20 20:47:03,038 INFO L895 garLoopResultBuilder]: At program point L831(lines 831 848) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (<= |old(~waterLevel~0)| 2))) (.cse2 (not (= 1 ~systemActive~0))) (.cse4 (not (= |old(~pumpRunning~0)| 1))) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse5 (<= 1 ~switchedOnBeforeTS~0)) (.cse6 (= ~pumpRunning~0 1))) (and (or .cse0 (not (= 0 ~systemActive~0)) (not (< |old(~waterLevel~0)| 3))) (or .cse0 (and (= ~pumpRunning~0 0) .cse1) .cse2 .cse3) (or .cse2 .cse4 (and (= ~waterLevel~0 1) .cse5 .cse6) .cse3 (not (<= 2 |old(~waterLevel~0)|))) (or (not (<= |old(~waterLevel~0)| 1)) .cse2 .cse4 (and (<= ~waterLevel~0 0) (or (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) (< 0 |old(~waterLevel~0)|)) .cse1) .cse5 .cse6) (not (<= 1 |old(~switchedOnBeforeTS~0)|))))) [2022-11-20 20:47:03,038 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 766 792) the Hoare annotation is: (let ((.cse9 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse3 (not (<= |old(~waterLevel~0)| 2))) (.cse5 (and .cse9 (= ~pumpRunning~0 1))) (.cse4 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (not (= 1 ~systemActive~0))) (.cse7 (<= 1 ~switchedOnBeforeTS~0)) (.cse6 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (and (= ~pumpRunning~0 0) .cse9)) (.cse8 (not (< |old(~waterLevel~0)| 3)))) (and (or .cse0 .cse1 .cse2 .cse3) (or (not (<= |old(~waterLevel~0)| 1)) .cse2 .cse4 .cse5 .cse6) (or .cse2 .cse4 .cse3 .cse5 (not (<= 2 |old(~waterLevel~0)|))) (or .cse2 .cse4 .cse7 .cse6 .cse8) (or .cse0 .cse2 .cse7 .cse6 .cse8) (or .cse0 .cse1 (not (= 0 ~systemActive~0)) .cse8)))) [2022-11-20 20:47:03,038 INFO L895 garLoopResultBuilder]: At program point L526(line 526) the Hoare annotation is: (let ((.cse3 (not (= |old(~pumpRunning~0)| 1))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse1 (not (< |old(~waterLevel~0)| 3)))) (and (or .cse0 (not (= 0 ~systemActive~0)) .cse1) (or .cse2 .cse3 (not (<= 1 |old(~switchedOnBeforeTS~0)|)) .cse1) (or .cse2 .cse3 (not (<= |old(~waterLevel~0)| 2)) (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 .cse2 .cse1))) [2022-11-20 20:47:03,038 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 766 792) no Hoare annotation was computed. [2022-11-20 20:47:03,039 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 526) no Hoare annotation was computed. [2022-11-20 20:47:03,040 INFO L895 garLoopResultBuilder]: At program point L547(line 547) the Hoare annotation is: (let ((.cse9 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse3 (not (<= |old(~waterLevel~0)| 2))) (.cse5 (and .cse9 (= ~pumpRunning~0 1))) (.cse4 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (not (= 1 ~systemActive~0))) (.cse7 (<= 1 ~switchedOnBeforeTS~0)) (.cse6 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (and (= ~pumpRunning~0 0) .cse9)) (.cse8 (not (< |old(~waterLevel~0)| 3)))) (and (or .cse0 .cse1 .cse2 .cse3) (or (not (<= |old(~waterLevel~0)| 1)) .cse2 .cse4 .cse5 .cse6) (or .cse2 .cse4 .cse3 .cse5 (not (<= 2 |old(~waterLevel~0)|))) (or .cse2 .cse4 .cse7 .cse6 .cse8) (or .cse0 .cse2 .cse7 .cse6 .cse8) (or .cse0 .cse1 (not (= 0 ~systemActive~0)) .cse8)))) [2022-11-20 20:47:03,040 INFO L895 garLoopResultBuilder]: At program point L547-1(line 547) the Hoare annotation is: (let ((.cse6 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (and (<= 1 |timeShift___utac_acc__Specification5_spec__2_#t~ret28#1|) .cse6 (= ~pumpRunning~0 1))) (.cse2 (not (= |old(~pumpRunning~0)| 1))) (.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (and (= ~pumpRunning~0 0) .cse6)) (.cse3 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 .cse2 .cse3 (not (<= 2 |old(~waterLevel~0)|))) (or .cse4 .cse5 .cse0 .cse3) (or (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse1 .cse2 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse4 .cse5 .cse3 (not (= 0 ~systemActive~0)))))) [2022-11-20 20:47:03,040 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 418 447) no Hoare annotation was computed. [2022-11-20 20:47:03,040 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 418 447) the Hoare annotation is: true [2022-11-20 20:47:03,041 INFO L902 garLoopResultBuilder]: At program point L443(lines 418 447) the Hoare annotation is: true [2022-11-20 20:47:03,041 INFO L899 garLoopResultBuilder]: For program point L439(line 439) no Hoare annotation was computed. [2022-11-20 20:47:03,041 INFO L899 garLoopResultBuilder]: For program point L432(lines 432 436) no Hoare annotation was computed. [2022-11-20 20:47:03,041 INFO L902 garLoopResultBuilder]: At program point L432-1(lines 432 436) the Hoare annotation is: true [2022-11-20 20:47:03,041 INFO L902 garLoopResultBuilder]: At program point L428-2(lines 428 442) the Hoare annotation is: true [2022-11-20 20:47:03,041 INFO L902 garLoopResultBuilder]: At program point L424(line 424) the Hoare annotation is: true [2022-11-20 20:47:03,041 INFO L899 garLoopResultBuilder]: For program point L424-1(line 424) no Hoare annotation was computed. [2022-11-20 20:47:03,042 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-20 20:47:03,042 INFO L902 garLoopResultBuilder]: At program point L755(lines 692 759) the Hoare annotation is: true [2022-11-20 20:47:03,042 INFO L899 garLoopResultBuilder]: For program point L722(lines 722 728) no Hoare annotation was computed. [2022-11-20 20:47:03,042 INFO L899 garLoopResultBuilder]: For program point L722-1(lines 722 728) no Hoare annotation was computed. [2022-11-20 20:47:03,042 INFO L895 garLoopResultBuilder]: At program point L714(line 714) the Hoare annotation is: (let ((.cse2 (< ~waterLevel~0 3)) (.cse3 (= ~pumpRunning~0 1)) (.cse4 (= ~pumpRunning~0 0)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse5 (<= ~waterLevel~0 2))) (or (and .cse0 .cse1 (<= 1 ~switchedOnBeforeTS~0) .cse2 .cse3) (and .cse4 .cse1 (= 0 ~systemActive~0) .cse2) (and (<= 2 ~waterLevel~0) .cse0 .cse1 .cse5 .cse3) (and .cse4 .cse0 .cse1 .cse5))) [2022-11-20 20:47:03,042 INFO L899 garLoopResultBuilder]: For program point L966(lines 966 972) no Hoare annotation was computed. [2022-11-20 20:47:03,043 INFO L895 garLoopResultBuilder]: At program point L966-1(lines 966 972) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (< ~waterLevel~0 3)) [2022-11-20 20:47:03,043 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-20 20:47:03,043 INFO L895 garLoopResultBuilder]: At program point L508(lines 508 515) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-20 20:47:03,043 INFO L902 garLoopResultBuilder]: At program point L508-2(lines 508 515) the Hoare annotation is: true [2022-11-20 20:47:03,043 INFO L895 garLoopResultBuilder]: At program point L752(lines 701 753) the Hoare annotation is: false [2022-11-20 20:47:03,043 INFO L899 garLoopResultBuilder]: For program point L740(lines 740 746) no Hoare annotation was computed. [2022-11-20 20:47:03,044 INFO L895 garLoopResultBuilder]: At program point L740-2(lines 732 747) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse3 (< ~waterLevel~0 3)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (= ~pumpRunning~0 1))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse1 .cse2 (<= 1 ~switchedOnBeforeTS~0) .cse3 .cse4) (and .cse0 .cse2 (= 0 ~systemActive~0) .cse3) (and (<= 2 ~waterLevel~0) .cse1 .cse2 (<= ~waterLevel~0 2) .cse4))) [2022-11-20 20:47:03,044 INFO L899 garLoopResultBuilder]: For program point L703(lines 702 751) no Hoare annotation was computed. [2022-11-20 20:47:03,044 INFO L895 garLoopResultBuilder]: At program point L732(lines 732 747) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse3 (< ~waterLevel~0 3)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (= ~pumpRunning~0 1))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse1 .cse2 (<= 1 ~switchedOnBeforeTS~0) .cse3 .cse4) (and .cse0 .cse2 (= 0 ~systemActive~0) .cse3) (and (<= 2 ~waterLevel~0) .cse1 .cse2 (<= ~waterLevel~0 2) .cse4))) [2022-11-20 20:47:03,044 INFO L895 garLoopResultBuilder]: At program point L724(line 724) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse3 (< ~waterLevel~0 3)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (= ~pumpRunning~0 1))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse1 .cse2 (<= 1 ~switchedOnBeforeTS~0) .cse3 .cse4) (and .cse0 .cse2 (= 0 ~systemActive~0) .cse3) (and (<= 2 ~waterLevel~0) .cse1 .cse2 (<= ~waterLevel~0 2) .cse4))) [2022-11-20 20:47:03,044 INFO L895 garLoopResultBuilder]: At program point L749(lines 702 751) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 1)) (.cse3 (= ~pumpRunning~0 0)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (<= ~waterLevel~0 2))) (or (and .cse0 .cse1 (<= 1 ~switchedOnBeforeTS~0) (< ~waterLevel~0 3) .cse2) (and .cse3 .cse1 .cse4 (= 0 ~systemActive~0)) (and (<= 2 ~waterLevel~0) .cse0 .cse1 .cse4 .cse2) (and .cse3 .cse0 .cse1 .cse4))) [2022-11-20 20:47:03,044 INFO L899 garLoopResultBuilder]: For program point L712(lines 712 718) no Hoare annotation was computed. [2022-11-20 20:47:03,044 INFO L895 garLoopResultBuilder]: At program point L968(line 968) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (= ~pumpRunning~0 1))) (or (and .cse0 .cse1 (<= 1 ~switchedOnBeforeTS~0) (< ~waterLevel~0 3) .cse2) (and (<= 2 ~waterLevel~0) .cse0 .cse1 (<= ~waterLevel~0 2) .cse2))) [2022-11-20 20:47:03,045 INFO L899 garLoopResultBuilder]: For program point L712-1(lines 712 718) no Hoare annotation was computed. [2022-11-20 20:47:03,045 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 801 825) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (not (<= 1 ~switchedOnBeforeTS~0))) (.cse3 (= ~pumpRunning~0 1))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0 (not (< ~waterLevel~0 3))) (or (not (<= ~waterLevel~0 0)) .cse0 .cse1 .cse2 .cse3) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2 .cse3))) [2022-11-20 20:47:03,045 INFO L895 garLoopResultBuilder]: At program point L820(line 820) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (not (<= 1 ~switchedOnBeforeTS~0))) (.cse3 (= ~pumpRunning~0 1))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (< ~waterLevel~0 3))) (or (not (<= ~waterLevel~0 0)) .cse0 .cse1 .cse2 .cse3) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2 .cse3))) [2022-11-20 20:47:03,045 INFO L899 garLoopResultBuilder]: For program point L820-1(lines 801 825) no Hoare annotation was computed. [2022-11-20 20:47:03,045 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 801 825) no Hoare annotation was computed. [2022-11-20 20:47:03,046 INFO L895 garLoopResultBuilder]: At program point L815(line 815) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 1))) (.cse3 (not (<= 1 ~switchedOnBeforeTS~0))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 (= ~pumpRunning~0 0) .cse1 (not (<= ~waterLevel~0 2))) (or (not (= ~waterLevel~0 1)) .cse1 .cse2 .cse3) (or (not (<= ~waterLevel~0 0)) .cse1 .cse2 .cse3) (or .cse0 .cse1 (= |processEnvironment__wrappee__highWaterSensor_~tmp~6#1| 0) (not (<= ~waterLevel~0 1))))) [2022-11-20 20:47:03,046 INFO L895 garLoopResultBuilder]: At program point L809(lines 809 817) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 1))) (.cse3 (not (<= 1 ~switchedOnBeforeTS~0))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 (= ~pumpRunning~0 0) .cse1 (not (<= ~waterLevel~0 2))) (or (not (= ~waterLevel~0 1)) .cse1 .cse2 .cse3) (or (not (<= ~waterLevel~0 0)) .cse1 .cse2 .cse3) (or .cse0 .cse1 (= |processEnvironment__wrappee__highWaterSensor_~tmp~6#1| 0) (not (<= ~waterLevel~0 1))))) [2022-11-20 20:47:03,046 INFO L895 garLoopResultBuilder]: At program point L805(lines 805 822) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (not (<= 1 ~switchedOnBeforeTS~0))) (.cse3 (= ~pumpRunning~0 1))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0 (not (< ~waterLevel~0 3))) (or (not (<= ~waterLevel~0 0)) .cse0 .cse1 .cse2 .cse3) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2 .cse3))) [2022-11-20 20:47:03,046 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 601 612) no Hoare annotation was computed. [2022-11-20 20:47:03,047 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 601 612) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse3 (not (= 1 ~systemActive~0))) (.cse4 (not (= ~pumpRunning~0 1))) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse2 (not (< |old(~waterLevel~0)| 3)))) (and (or .cse0 .cse1 (not (= 0 ~systemActive~0)) .cse2) (or .cse0 .cse3 .cse1 .cse2) (or .cse3 .cse4 .cse1 (not (<= |old(~waterLevel~0)| 2)) (not (<= 2 |old(~waterLevel~0)|))) (or .cse3 .cse4 .cse1 (not (<= 1 ~switchedOnBeforeTS~0)) .cse2))) [2022-11-20 20:47:03,047 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 879 887) no Hoare annotation was computed. [2022-11-20 20:47:03,047 INFO L902 garLoopResultBuilder]: At program point isPumpRunningENTRY(lines 879 887) the Hoare annotation is: true [2022-11-20 20:47:03,050 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:47:03,052 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 20:47:03,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 08:47:03 BoogieIcfgContainer [2022-11-20 20:47:03,085 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 20:47:03,086 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 20:47:03,086 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 20:47:03,086 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 20:47:03,087 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:46:05" (3/4) ... [2022-11-20 20:47:03,090 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 20:47:03,095 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-11-20 20:47:03,095 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-20 20:47:03,095 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-20 20:47:03,096 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-20 20:47:03,096 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-20 20:47:03,096 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2022-11-20 20:47:03,096 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-20 20:47:03,096 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2022-11-20 20:47:03,103 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 49 nodes and edges [2022-11-20 20:47:03,104 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-11-20 20:47:03,104 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-20 20:47:03,105 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 20:47:03,105 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 20:47:03,132 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(1 == systemActive) || ((1 <= aux-isPumpRunning()-aux && \old(waterLevel) == waterLevel) && pumpRunning == 1)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(\old(waterLevel) <= 2))) && ((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || ((1 <= aux-isPumpRunning()-aux && \old(waterLevel) == waterLevel) && pumpRunning == 1)) || !(\old(pumpRunning) == 1)) || !(1 <= \old(switchedOnBeforeTS)))) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) [2022-11-20 20:47:03,133 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || ((waterLevel == 1 && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) || ((pumpRunning == 0 && waterLevel == 1) && 1 <= switchedOnBeforeTS)) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || !(0 == systemActive))) && (((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && 1 <= switchedOnBeforeTS)) || ((\old(waterLevel) == waterLevel && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(waterLevel) <= 0)) || !(1 <= \old(switchedOnBeforeTS)))) && ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || (\old(waterLevel) == waterLevel && pumpRunning == 1)) || !(\old(waterLevel) < 3))) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || pumpRunning == 0) || !(1 == systemActive))) && (((((!(\old(waterLevel) == 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || (((pumpRunning == 0 && \old(waterLevel) == waterLevel + 1) && 0 < \old(waterLevel)) && 1 <= switchedOnBeforeTS)) || (((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(1 <= \old(switchedOnBeforeTS))) [2022-11-20 20:47:03,133 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((!(\old(waterLevel) <= 1) || (((pumpRunning == 0 && tmp == waterLevel) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) && 1 <= switchedOnBeforeTS)) || !(1 == systemActive)) || ((((tmp == waterLevel && waterLevel <= 0) && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(pumpRunning) == 1)) || !(1 <= \old(switchedOnBeforeTS))) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || ((pumpRunning == 0 && tmp == waterLevel) && \old(waterLevel) == waterLevel))) && (((!(\old(pumpRunning) == 0) || (((pumpRunning == 0 && waterLevel <= tmp) && \old(waterLevel) == waterLevel) && tmp <= waterLevel)) || !(0 == systemActive)) || !(\old(waterLevel) < 3))) && (((((!(1 == systemActive) || (((tmp == waterLevel && waterLevel == 1) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || (((pumpRunning == 0 && tmp == waterLevel) && waterLevel == 1) && 1 <= switchedOnBeforeTS)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && tmp == waterLevel) && \old(waterLevel) == waterLevel)) || ((tmp == waterLevel && \old(waterLevel) == waterLevel) && pumpRunning == 1)) || !(\old(waterLevel) < 3)) [2022-11-20 20:47:03,134 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || !(0 == systemActive)) || !(\old(waterLevel) < 3)) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(\old(waterLevel) <= 2))) && ((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || ((waterLevel == 1 && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || (((waterLevel <= 0 && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(1 <= \old(switchedOnBeforeTS))) [2022-11-20 20:47:03,134 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || !(0 == systemActive)) || !(\old(waterLevel) < 3)) && (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(1 <= \old(switchedOnBeforeTS))) || !(\old(waterLevel) < 3))) && (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) < 3)) [2022-11-20 20:47:03,134 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(pumpRunning) == 0) || !(0 == systemActive)) || !(\old(waterLevel) < 3)) && (((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || ((waterLevel == 1 && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) || ((pumpRunning == 0 && waterLevel == 1) && 1 <= switchedOnBeforeTS))) && (((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && 1 <= switchedOnBeforeTS)) || ((\old(waterLevel) == waterLevel && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(waterLevel) <= 0)) || !(1 <= \old(switchedOnBeforeTS)))) && ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || (\old(waterLevel) == waterLevel && pumpRunning == 1)) || !(\old(waterLevel) < 3))) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || pumpRunning == 0) || !(1 == systemActive))) && (((((!(\old(waterLevel) == 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || (((pumpRunning == 0 && \old(waterLevel) == waterLevel + 1) && 0 < \old(waterLevel)) && 1 <= switchedOnBeforeTS)) || (((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(1 <= \old(switchedOnBeforeTS))) [2022-11-20 20:47:03,134 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(waterLevel < 3)) && ((((!(waterLevel <= 0) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(1 <= switchedOnBeforeTS)) || pumpRunning == 1)) && ((((!(waterLevel == 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(1 <= switchedOnBeforeTS)) || pumpRunning == 1) [2022-11-20 20:47:03,136 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(waterLevel <= 2)) && (((!(waterLevel == 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(1 <= switchedOnBeforeTS))) && (((!(waterLevel <= 0) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(1 <= switchedOnBeforeTS))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || tmp == 0) || !(waterLevel <= 1)) [2022-11-20 20:47:03,160 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb5af97-8862-4753-9181-f6458a63dcef/bin/utaipan-6cKwYrpEi9/witness.graphml [2022-11-20 20:47:03,161 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 20:47:03,161 INFO L158 Benchmark]: Toolchain (without parser) took 59082.24ms. Allocated memory was 163.6MB in the beginning and 559.9MB in the end (delta: 396.4MB). Free memory was 118.8MB in the beginning and 318.4MB in the end (delta: -199.6MB). Peak memory consumption was 197.6MB. Max. memory is 16.1GB. [2022-11-20 20:47:03,161 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 104.9MB. Free memory is still 51.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 20:47:03,162 INFO L158 Benchmark]: CACSL2BoogieTranslator took 476.82ms. Allocated memory is still 163.6MB. Free memory was 118.8MB in the beginning and 99.5MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-20 20:47:03,162 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.13ms. Allocated memory is still 163.6MB. Free memory was 99.5MB in the beginning and 97.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 20:47:03,162 INFO L158 Benchmark]: Boogie Preprocessor took 33.55ms. Allocated memory is still 163.6MB. Free memory was 97.4MB in the beginning and 95.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 20:47:03,163 INFO L158 Benchmark]: RCFGBuilder took 904.45ms. Allocated memory is still 163.6MB. Free memory was 95.7MB in the beginning and 69.8MB in the end (delta: 26.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-20 20:47:03,163 INFO L158 Benchmark]: TraceAbstraction took 57522.44ms. Allocated memory was 163.6MB in the beginning and 559.9MB in the end (delta: 396.4MB). Free memory was 69.3MB in the beginning and 323.6MB in the end (delta: -254.3MB). Peak memory consumption was 277.8MB. Max. memory is 16.1GB. [2022-11-20 20:47:03,164 INFO L158 Benchmark]: Witness Printer took 74.92ms. Allocated memory is still 559.9MB. Free memory was 323.6MB in the beginning and 318.4MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 20:47:03,165 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 104.9MB. Free memory is still 51.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 476.82ms. Allocated memory is still 163.6MB. Free memory was 118.8MB in the beginning and 99.5MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.13ms. Allocated memory is still 163.6MB. Free memory was 99.5MB in the beginning and 97.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.55ms. Allocated memory is still 163.6MB. Free memory was 97.4MB in the beginning and 95.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 904.45ms. Allocated memory is still 163.6MB. Free memory was 95.7MB in the beginning and 69.8MB in the end (delta: 26.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 57522.44ms. Allocated memory was 163.6MB in the beginning and 559.9MB in the end (delta: 396.4MB). Free memory was 69.3MB in the beginning and 323.6MB in the end (delta: -254.3MB). Peak memory consumption was 277.8MB. Max. memory is 16.1GB. * Witness Printer took 74.92ms. Allocated memory is still 559.9MB. Free memory was 323.6MB in the beginning and 318.4MB in the end (delta: 5.2MB). 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: 526]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 66 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 57.4s, OverallIterations: 11, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 9.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 10.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3367 SdHoareTripleChecker+Valid, 4.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3342 mSDsluCounter, 3973 SdHoareTripleChecker+Invalid, 3.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3025 mSDsCounter, 1878 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4955 IncrementalHoareTripleChecker+Invalid, 6833 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1878 mSolverCounterUnsat, 948 mSDtfsCounter, 4955 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1032 GetRequests, 728 SyntacticMatches, 8 SemanticMatches, 296 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9065 ImplicationChecksByTransitivity, 22.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=513occurred in iteration=10, InterpolantAutomatonStates: 160, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 11 MinimizatonAttempts, 551 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 39 LocationsWithAnnotation, 1951 PreInvPairs, 2306 NumberOfFragments, 2330 HoareAnnotationTreeSize, 1951 FomulaSimplifications, 22235 FormulaSimplificationTreeSizeReduction, 1.8s HoareSimplificationTime, 39 FomulaSimplificationsInter, 59023 FormulaSimplificationTreeSizeReductionInter, 8.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.0s InterpolantComputationTime, 831 NumberOfCodeBlocks, 831 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1055 ConstructedInterpolants, 0 QuantifiedInterpolants, 3402 SizeOfPredicates, 29 NumberOfNonLiveVariables, 1423 ConjunctsInSsa, 64 ConjunctsInUnsatCore, 18 InterpolantComputations, 8 PerfectInterpolantSequences, 485/608 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: 552]: Loop Invariant Derived loop invariant: ((((((((!(\old(waterLevel) <= 1) || (((pumpRunning == 0 && tmp == waterLevel) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) && 1 <= switchedOnBeforeTS)) || !(1 == systemActive)) || ((((tmp == waterLevel && waterLevel <= 0) && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(pumpRunning) == 1)) || !(1 <= \old(switchedOnBeforeTS))) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || ((pumpRunning == 0 && tmp == waterLevel) && \old(waterLevel) == waterLevel))) && (((!(\old(pumpRunning) == 0) || (((pumpRunning == 0 && waterLevel <= tmp) && \old(waterLevel) == waterLevel) && tmp <= waterLevel)) || !(0 == systemActive)) || !(\old(waterLevel) < 3))) && (((((!(1 == systemActive) || (((tmp == waterLevel && waterLevel == 1) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || (((pumpRunning == 0 && tmp == waterLevel) && waterLevel == 1) && 1 <= switchedOnBeforeTS)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && tmp == waterLevel) && \old(waterLevel) == waterLevel)) || ((tmp == waterLevel && \old(waterLevel) == waterLevel) && pumpRunning == 1)) || !(\old(waterLevel) < 3)) - InvariantResult [Line: 702]: Loop Invariant Derived loop invariant: ((((((1 == systemActive && splverifierCounter == 0) && 1 <= switchedOnBeforeTS) && waterLevel < 3) && pumpRunning == 1) || (((pumpRunning == 0 && splverifierCounter == 0) && waterLevel <= 2) && 0 == systemActive)) || ((((2 <= waterLevel && 1 == systemActive) && splverifierCounter == 0) && waterLevel <= 2) && pumpRunning == 1)) || (((pumpRunning == 0 && 1 == systemActive) && splverifierCounter == 0) && waterLevel <= 2) - InvariantResult [Line: 701]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 692]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 732]: Loop Invariant Derived loop invariant: (((((pumpRunning == 0 && 1 == systemActive) && splverifierCounter == 0) && waterLevel < 3) || ((((1 == systemActive && splverifierCounter == 0) && 1 <= switchedOnBeforeTS) && waterLevel < 3) && pumpRunning == 1)) || (((pumpRunning == 0 && splverifierCounter == 0) && 0 == systemActive) && waterLevel < 3)) || ((((2 <= waterLevel && 1 == systemActive) && splverifierCounter == 0) && waterLevel <= 2) && pumpRunning == 1) - InvariantResult [Line: 418]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 831]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || !(0 == systemActive)) || !(\old(waterLevel) < 3)) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(\old(waterLevel) <= 2))) && ((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || ((waterLevel == 1 && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || (((waterLevel <= 0 && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(1 <= \old(switchedOnBeforeTS))) - InvariantResult [Line: 428]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 966]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && splverifierCounter == 0) && waterLevel < 3 - InvariantResult [Line: 508]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 805]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(waterLevel < 3)) && ((((!(waterLevel <= 0) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(1 <= switchedOnBeforeTS)) || pumpRunning == 1)) && ((((!(waterLevel == 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(1 <= switchedOnBeforeTS)) || pumpRunning == 1) - InvariantResult [Line: 780]: Loop Invariant Derived loop invariant: (((((((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || ((waterLevel == 1 && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) || ((pumpRunning == 0 && waterLevel == 1) && 1 <= switchedOnBeforeTS)) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || !(0 == systemActive))) && (((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && 1 <= switchedOnBeforeTS)) || ((\old(waterLevel) == waterLevel && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(waterLevel) <= 0)) || !(1 <= \old(switchedOnBeforeTS)))) && ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || (\old(waterLevel) == waterLevel && pumpRunning == 1)) || !(\old(waterLevel) < 3))) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || pumpRunning == 0) || !(1 == systemActive))) && (((((!(\old(waterLevel) == 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || (((pumpRunning == 0 && \old(waterLevel) == waterLevel + 1) && 0 < \old(waterLevel)) && 1 <= switchedOnBeforeTS)) || (((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(1 <= \old(switchedOnBeforeTS))) - InvariantResult [Line: 809]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(waterLevel <= 2)) && (((!(waterLevel == 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(1 <= switchedOnBeforeTS))) && (((!(waterLevel <= 0) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(1 <= switchedOnBeforeTS))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || tmp == 0) || !(waterLevel <= 1)) - InvariantResult [Line: 547]: Loop Invariant Derived loop invariant: ((((((!(1 == systemActive) || ((1 <= aux-isPumpRunning()-aux && \old(waterLevel) == waterLevel) && pumpRunning == 1)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(\old(waterLevel) <= 2))) && ((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || ((1 <= aux-isPumpRunning()-aux && \old(waterLevel) == waterLevel) && pumpRunning == 1)) || !(\old(pumpRunning) == 1)) || !(1 <= \old(switchedOnBeforeTS)))) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) - InvariantResult [Line: 827]: Loop Invariant Derived loop invariant: ((((((!(\old(pumpRunning) == 0) || !(0 == systemActive)) || !(\old(waterLevel) < 3)) && (((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || ((waterLevel == 1 && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) || ((pumpRunning == 0 && waterLevel == 1) && 1 <= switchedOnBeforeTS))) && (((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && 1 <= switchedOnBeforeTS)) || ((\old(waterLevel) == waterLevel && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(waterLevel) <= 0)) || !(1 <= \old(switchedOnBeforeTS)))) && ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || (\old(waterLevel) == waterLevel && pumpRunning == 1)) || !(\old(waterLevel) < 3))) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || pumpRunning == 0) || !(1 == systemActive))) && (((((!(\old(waterLevel) == 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || (((pumpRunning == 0 && \old(waterLevel) == waterLevel + 1) && 0 < \old(waterLevel)) && 1 <= switchedOnBeforeTS)) || (((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(1 <= \old(switchedOnBeforeTS))) - InvariantResult [Line: 508]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 526]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || !(0 == systemActive)) || !(\old(waterLevel) < 3)) && (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(1 <= \old(switchedOnBeforeTS))) || !(\old(waterLevel) < 3))) && (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) < 3)) RESULT: Ultimate proved your program to be correct! [2022-11-20 20:47:03,203 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb5af97-8862-4753-9181-f6458a63dcef/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE