./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product58.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a382fff-abf6-4af9-a3c6-951534fa4543/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a382fff-abf6-4af9-a3c6-951534fa4543/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a382fff-abf6-4af9-a3c6-951534fa4543/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a382fff-abf6-4af9-a3c6-951534fa4543/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product58.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a382fff-abf6-4af9-a3c6-951534fa4543/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a382fff-abf6-4af9-a3c6-951534fa4543/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --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 db9cad3d4bb6f197e1ca94da7e6c4fb3038f74aed96fd168a277cfa6f57caad2 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 12:37:45,908 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 12:37:45,976 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a382fff-abf6-4af9-a3c6-951534fa4543/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 12:37:45,980 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 12:37:45,981 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 12:37:46,014 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 12:37:46,014 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 12:37:46,015 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 12:37:46,016 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 12:37:46,016 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 12:37:46,017 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 12:37:46,017 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 12:37:46,018 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 12:37:46,018 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 12:37:46,019 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 12:37:46,019 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 12:37:46,027 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 12:37:46,027 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 12:37:46,028 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 12:37:46,028 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 12:37:46,029 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 12:37:46,030 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 12:37:46,030 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 12:37:46,031 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 12:37:46,031 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 12:37:46,032 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 12:37:46,032 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 12:37:46,032 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 12:37:46,033 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 12:37:46,033 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 12:37:46,034 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 12:37:46,034 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 12:37:46,034 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 12:37:46,035 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 12:37:46,035 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 12:37:46,035 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 12:37:46,035 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 12:37:46,035 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 12:37:46,036 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 12:37:46,036 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 12:37:46,036 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 12:37:46,036 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 12:37:46,037 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 12:37:46,037 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 12:37:46,037 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 12:37:46,037 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 12:37:46,037 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 12:37:46,038 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_9a382fff-abf6-4af9-a3c6-951534fa4543/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a382fff-abf6-4af9-a3c6-951534fa4543/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db9cad3d4bb6f197e1ca94da7e6c4fb3038f74aed96fd168a277cfa6f57caad2 [2023-12-02 12:37:46,275 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 12:37:46,294 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 12:37:46,296 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 12:37:46,298 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 12:37:46,298 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 12:37:46,299 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a382fff-abf6-4af9-a3c6-951534fa4543/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/product-lines/minepump_spec5_product58.cil.c [2023-12-02 12:37:48,991 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 12:37:49,206 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 12:37:49,206 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a382fff-abf6-4af9-a3c6-951534fa4543/sv-benchmarks/c/product-lines/minepump_spec5_product58.cil.c [2023-12-02 12:37:49,220 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a382fff-abf6-4af9-a3c6-951534fa4543/bin/utaipan-verify-nQ1chXbOIh/data/f8e14464f/e00829ddfdc64bafbcac3cbe038a481e/FLAG41f79da03 [2023-12-02 12:37:49,232 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a382fff-abf6-4af9-a3c6-951534fa4543/bin/utaipan-verify-nQ1chXbOIh/data/f8e14464f/e00829ddfdc64bafbcac3cbe038a481e [2023-12-02 12:37:49,234 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 12:37:49,236 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 12:37:49,237 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 12:37:49,237 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 12:37:49,241 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 12:37:49,242 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:37:49" (1/1) ... [2023-12-02 12:37:49,243 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32c1a17d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:37:49, skipping insertion in model container [2023-12-02 12:37:49,243 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:37:49" (1/1) ... [2023-12-02 12:37:49,294 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 12:37:49,524 WARN L240 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_9a382fff-abf6-4af9-a3c6-951534fa4543/sv-benchmarks/c/product-lines/minepump_spec5_product58.cil.c[14935,14948] [2023-12-02 12:37:49,546 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 12:37:49,556 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 12:37:49,564 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] [2023-12-02 12:37:49,565 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [160] [2023-12-02 12:37:49,565 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [211] [2023-12-02 12:37:49,565 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [577] [2023-12-02 12:37:49,565 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [680] [2023-12-02 12:37:49,566 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [689] [2023-12-02 12:37:49,566 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [757] [2023-12-02 12:37:49,566 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [985] [2023-12-02 12:37:49,608 WARN L240 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_9a382fff-abf6-4af9-a3c6-951534fa4543/sv-benchmarks/c/product-lines/minepump_spec5_product58.cil.c[14935,14948] [2023-12-02 12:37:49,618 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 12:37:49,635 INFO L206 MainTranslator]: Completed translation [2023-12-02 12:37:49,635 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:37:49 WrapperNode [2023-12-02 12:37:49,636 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 12:37:49,637 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 12:37:49,637 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 12:37:49,637 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 12:37:49,643 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:37:49" (1/1) ... [2023-12-02 12:37:49,656 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:37:49" (1/1) ... [2023-12-02 12:37:49,683 INFO L138 Inliner]: procedures = 59, calls = 104, calls flagged for inlining = 28, calls inlined = 25, statements flattened = 235 [2023-12-02 12:37:49,684 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 12:37:49,684 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 12:37:49,685 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 12:37:49,685 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 12:37:49,692 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:37:49" (1/1) ... [2023-12-02 12:37:49,693 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:37:49" (1/1) ... [2023-12-02 12:37:49,695 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:37:49" (1/1) ... [2023-12-02 12:37:49,696 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:37:49" (1/1) ... [2023-12-02 12:37:49,701 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:37:49" (1/1) ... [2023-12-02 12:37:49,706 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:37:49" (1/1) ... [2023-12-02 12:37:49,708 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:37:49" (1/1) ... [2023-12-02 12:37:49,710 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:37:49" (1/1) ... [2023-12-02 12:37:49,713 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 12:37:49,714 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 12:37:49,714 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 12:37:49,714 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 12:37:49,715 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:37:49" (1/1) ... [2023-12-02 12:37:49,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 12:37:49,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a382fff-abf6-4af9-a3c6-951534fa4543/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:37:49,745 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a382fff-abf6-4af9-a3c6-951534fa4543/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 12:37:49,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a382fff-abf6-4af9-a3c6-951534fa4543/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 12:37:49,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 12:37:49,787 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-12-02 12:37:49,787 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-12-02 12:37:49,787 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-02 12:37:49,787 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-02 12:37:49,788 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-02 12:37:49,788 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-02 12:37:49,788 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-12-02 12:37:49,788 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-12-02 12:37:49,788 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-12-02 12:37:49,789 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-12-02 12:37:49,789 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-12-02 12:37:49,789 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-12-02 12:37:49,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 12:37:49,789 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-12-02 12:37:49,789 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-12-02 12:37:49,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 12:37:49,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 12:37:49,876 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 12:37:49,879 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 12:37:50,129 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 12:37:50,232 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 12:37:50,232 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-02 12:37:50,234 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:37:50 BoogieIcfgContainer [2023-12-02 12:37:50,234 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 12:37:50,237 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 12:37:50,237 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 12:37:50,240 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 12:37:50,240 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:37:49" (1/3) ... [2023-12-02 12:37:50,241 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cee79ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:37:50, skipping insertion in model container [2023-12-02 12:37:50,241 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:37:49" (2/3) ... [2023-12-02 12:37:50,242 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cee79ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:37:50, skipping insertion in model container [2023-12-02 12:37:50,242 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:37:50" (3/3) ... [2023-12-02 12:37:50,243 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product58.cil.c [2023-12-02 12:37:50,262 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 12:37:50,262 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 12:37:50,305 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 12:37:50,310 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=LoopHeads, 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;@1d4c7c2c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 12:37:50,310 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 12:37:50,315 INFO L276 IsEmpty]: Start isEmpty. Operand has 58 states, 37 states have (on average 1.4324324324324325) internal successors, (53), 45 states have internal predecessors, (53), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2023-12-02 12:37:50,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-02 12:37:50,323 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:37:50,324 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] [2023-12-02 12:37:50,324 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:37:50,328 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:37:50,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1555284680, now seen corresponding path program 1 times [2023-12-02 12:37:50,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:37:50,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616868173] [2023-12-02 12:37:50,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:37:50,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:37:50,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:37:50,509 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 12:37:50,510 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:37:50,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616868173] [2023-12-02 12:37:50,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616868173] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:37:50,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:37:50,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 12:37:50,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403381737] [2023-12-02 12:37:50,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:37:50,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 12:37:50,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:37:50,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 12:37:50,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 12:37:50,547 INFO L87 Difference]: Start difference. First operand has 58 states, 37 states have (on average 1.4324324324324325) internal successors, (53), 45 states have internal predecessors, (53), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) 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) [2023-12-02 12:37:50,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:37:50,607 INFO L93 Difference]: Finished difference Result 114 states and 155 transitions. [2023-12-02 12:37:50,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 12:37:50,610 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 [2023-12-02 12:37:50,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:37:50,619 INFO L225 Difference]: With dead ends: 114 [2023-12-02 12:37:50,619 INFO L226 Difference]: Without dead ends: 53 [2023-12-02 12:37:50,623 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 [2023-12-02 12:37:50,627 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 12:37:50,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 57 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 12:37:50,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2023-12-02 12:37:50,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2023-12-02 12:37:50,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 34 states have (on average 1.3235294117647058) internal successors, (45), 41 states have internal predecessors, (45), 12 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2023-12-02 12:37:50,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 68 transitions. [2023-12-02 12:37:50,666 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 68 transitions. Word has length 21 [2023-12-02 12:37:50,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:37:50,667 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 68 transitions. [2023-12-02 12:37:50,667 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) [2023-12-02 12:37:50,667 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 68 transitions. [2023-12-02 12:37:50,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-02 12:37:50,670 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:37:50,670 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] [2023-12-02 12:37:50,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 12:37:50,671 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:37:50,671 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:37:50,671 INFO L85 PathProgramCache]: Analyzing trace with hash -702916997, now seen corresponding path program 1 times [2023-12-02 12:37:50,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:37:50,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201273817] [2023-12-02 12:37:50,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:37:50,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:37:50,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:37:50,766 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 12:37:50,766 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:37:50,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201273817] [2023-12-02 12:37:50,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201273817] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:37:50,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:37:50,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 12:37:50,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867549731] [2023-12-02 12:37:50,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:37:50,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 12:37:50,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:37:50,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 12:37:50,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 12:37:50,770 INFO L87 Difference]: Start difference. First operand 53 states and 68 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) [2023-12-02 12:37:50,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:37:50,810 INFO L93 Difference]: Finished difference Result 83 states and 107 transitions. [2023-12-02 12:37:50,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 12:37:50,811 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 [2023-12-02 12:37:50,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:37:50,812 INFO L225 Difference]: With dead ends: 83 [2023-12-02 12:37:50,812 INFO L226 Difference]: Without dead ends: 45 [2023-12-02 12:37:50,813 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 [2023-12-02 12:37:50,815 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 7 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 12:37:50,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 77 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 12:37:50,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2023-12-02 12:37:50,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2023-12-02 12:37:50,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 36 states have internal predecessors, (39), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-02 12:37:50,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 57 transitions. [2023-12-02 12:37:50,825 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 57 transitions. Word has length 22 [2023-12-02 12:37:50,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:37:50,825 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 57 transitions. [2023-12-02 12:37:50,825 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) [2023-12-02 12:37:50,825 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 57 transitions. [2023-12-02 12:37:50,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 12:37:50,827 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:37:50,827 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] [2023-12-02 12:37:50,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 12:37:50,827 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:37:50,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:37:50,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1870223429, now seen corresponding path program 1 times [2023-12-02 12:37:50,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:37:50,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333063313] [2023-12-02 12:37:50,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:37:50,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:37:50,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:37:51,000 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 12:37:51,001 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:37:51,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333063313] [2023-12-02 12:37:51,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333063313] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:37:51,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:37:51,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 12:37:51,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179067968] [2023-12-02 12:37:51,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:37:51,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 12:37:51,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:37:51,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 12:37:51,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-02 12:37:51,003 INFO L87 Difference]: Start difference. First operand 45 states and 57 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 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) [2023-12-02 12:37:51,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:37:51,159 INFO L93 Difference]: Finished difference Result 124 states and 161 transitions. [2023-12-02 12:37:51,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 12:37:51,160 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 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 24 [2023-12-02 12:37:51,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:37:51,162 INFO L225 Difference]: With dead ends: 124 [2023-12-02 12:37:51,162 INFO L226 Difference]: Without dead ends: 81 [2023-12-02 12:37:51,163 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-02 12:37:51,164 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 30 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 12:37:51,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 200 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 12:37:51,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2023-12-02 12:37:51,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 79. [2023-12-02 12:37:51,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 52 states have (on average 1.2692307692307692) internal successors, (66), 59 states have internal predecessors, (66), 14 states have call successors, (14), 12 states have call predecessors, (14), 12 states have return successors, (18), 14 states have call predecessors, (18), 14 states have call successors, (18) [2023-12-02 12:37:51,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 98 transitions. [2023-12-02 12:37:51,181 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 98 transitions. Word has length 24 [2023-12-02 12:37:51,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:37:51,182 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 98 transitions. [2023-12-02 12:37:51,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 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) [2023-12-02 12:37:51,182 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 98 transitions. [2023-12-02 12:37:51,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-12-02 12:37:51,183 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:37:51,184 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] [2023-12-02 12:37:51,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 12:37:51,184 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:37:51,184 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:37:51,185 INFO L85 PathProgramCache]: Analyzing trace with hash -286328187, now seen corresponding path program 1 times [2023-12-02 12:37:51,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:37:51,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864132416] [2023-12-02 12:37:51,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:37:51,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:37:51,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:37:51,428 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 12:37:51,428 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:37:51,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864132416] [2023-12-02 12:37:51,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864132416] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:37:51,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:37:51,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-02 12:37:51,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8986370] [2023-12-02 12:37:51,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:37:51,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 12:37:51,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:37:51,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 12:37:51,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-02 12:37:51,431 INFO L87 Difference]: Start difference. First operand 79 states and 98 transitions. Second operand has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 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) [2023-12-02 12:37:51,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:37:51,617 INFO L93 Difference]: Finished difference Result 235 states and 293 transitions. [2023-12-02 12:37:51,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 12:37:51,618 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 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 32 [2023-12-02 12:37:51,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:37:51,621 INFO L225 Difference]: With dead ends: 235 [2023-12-02 12:37:51,621 INFO L226 Difference]: Without dead ends: 158 [2023-12-02 12:37:51,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-12-02 12:37:51,624 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 87 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 12:37:51,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 185 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 12:37:51,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2023-12-02 12:37:51,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 152. [2023-12-02 12:37:51,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 99 states have (on average 1.2424242424242424) internal successors, (123), 110 states have internal predecessors, (123), 28 states have call successors, (28), 24 states have call predecessors, (28), 24 states have return successors, (37), 26 states have call predecessors, (37), 28 states have call successors, (37) [2023-12-02 12:37:51,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 188 transitions. [2023-12-02 12:37:51,654 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 188 transitions. Word has length 32 [2023-12-02 12:37:51,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:37:51,655 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 188 transitions. [2023-12-02 12:37:51,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 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) [2023-12-02 12:37:51,655 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 188 transitions. [2023-12-02 12:37:51,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-12-02 12:37:51,657 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:37:51,658 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] [2023-12-02 12:37:51,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 12:37:51,658 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:37:51,658 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:37:51,659 INFO L85 PathProgramCache]: Analyzing trace with hash 2124836868, now seen corresponding path program 1 times [2023-12-02 12:37:51,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:37:51,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343953774] [2023-12-02 12:37:51,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:37:51,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:37:51,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:37:51,914 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 12:37:51,914 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:37:51,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343953774] [2023-12-02 12:37:51,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343953774] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:37:51,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:37:51,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-02 12:37:51,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014546125] [2023-12-02 12:37:51,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:37:51,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-02 12:37:51,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:37:51,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-02 12:37:51,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-02 12:37:51,917 INFO L87 Difference]: Start difference. First operand 152 states and 188 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 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) [2023-12-02 12:37:52,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:37:52,290 INFO L93 Difference]: Finished difference Result 364 states and 461 transitions. [2023-12-02 12:37:52,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-02 12:37:52,291 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 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 35 [2023-12-02 12:37:52,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:37:52,295 INFO L225 Difference]: With dead ends: 364 [2023-12-02 12:37:52,295 INFO L226 Difference]: Without dead ends: 262 [2023-12-02 12:37:52,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2023-12-02 12:37:52,297 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 164 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 12:37:52,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 207 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 12:37:52,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2023-12-02 12:37:52,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 228. [2023-12-02 12:37:52,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 153 states have (on average 1.2549019607843137) internal successors, (192), 169 states have internal predecessors, (192), 39 states have call successors, (39), 30 states have call predecessors, (39), 35 states have return successors, (54), 41 states have call predecessors, (54), 39 states have call successors, (54) [2023-12-02 12:37:52,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 285 transitions. [2023-12-02 12:37:52,333 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 285 transitions. Word has length 35 [2023-12-02 12:37:52,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:37:52,334 INFO L495 AbstractCegarLoop]: Abstraction has 228 states and 285 transitions. [2023-12-02 12:37:52,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 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) [2023-12-02 12:37:52,334 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 285 transitions. [2023-12-02 12:37:52,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-02 12:37:52,336 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:37:52,337 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:37:52,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 12:37:52,337 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:37:52,337 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:37:52,338 INFO L85 PathProgramCache]: Analyzing trace with hash -941955953, now seen corresponding path program 1 times [2023-12-02 12:37:52,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:37:52,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493333718] [2023-12-02 12:37:52,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:37:52,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:37:52,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:37:52,433 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-02 12:37:52,433 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:37:52,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493333718] [2023-12-02 12:37:52,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493333718] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:37:52,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:37:52,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 12:37:52,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526421186] [2023-12-02 12:37:52,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:37:52,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 12:37:52,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:37:52,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 12:37:52,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 12:37:52,436 INFO L87 Difference]: Start difference. First operand 228 states and 285 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-12-02 12:37:52,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:37:52,499 INFO L93 Difference]: Finished difference Result 454 states and 574 transitions. [2023-12-02 12:37:52,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 12:37:52,500 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 52 [2023-12-02 12:37:52,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:37:52,502 INFO L225 Difference]: With dead ends: 454 [2023-12-02 12:37:52,502 INFO L226 Difference]: Without dead ends: 228 [2023-12-02 12:37:52,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 12:37:52,504 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 44 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 12:37:52,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 70 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 12:37:52,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2023-12-02 12:37:52,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2023-12-02 12:37:52,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 153 states have (on average 1.2222222222222223) internal successors, (187), 169 states have internal predecessors, (187), 39 states have call successors, (39), 30 states have call predecessors, (39), 35 states have return successors, (54), 41 states have call predecessors, (54), 39 states have call successors, (54) [2023-12-02 12:37:52,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 280 transitions. [2023-12-02 12:37:52,531 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 280 transitions. Word has length 52 [2023-12-02 12:37:52,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:37:52,531 INFO L495 AbstractCegarLoop]: Abstraction has 228 states and 280 transitions. [2023-12-02 12:37:52,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-12-02 12:37:52,532 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 280 transitions. [2023-12-02 12:37:52,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-02 12:37:52,534 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:37:52,535 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:37:52,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-02 12:37:52,535 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:37:52,535 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:37:52,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1630757681, now seen corresponding path program 1 times [2023-12-02 12:37:52,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:37:52,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588771303] [2023-12-02 12:37:52,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:37:52,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:37:52,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:37:52,872 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-02 12:37:52,872 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:37:52,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588771303] [2023-12-02 12:37:52,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588771303] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 12:37:52,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [152466234] [2023-12-02 12:37:52,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:37:52,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 12:37:52,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a382fff-abf6-4af9-a3c6-951534fa4543/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:37:52,895 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a382fff-abf6-4af9-a3c6-951534fa4543/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 12:37:52,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a382fff-abf6-4af9-a3c6-951534fa4543/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 12:37:52,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:37:53,001 INFO L262 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-02 12:37:53,008 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 12:37:53,123 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 26 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 12:37:53,123 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 12:37:53,227 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-02 12:37:53,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [152466234] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 12:37:53,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [780281387] [2023-12-02 12:37:53,244 INFO L159 IcfgInterpreter]: Started Sifa with 36 locations of interest [2023-12-02 12:37:53,244 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 12:37:53,248 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 12:37:53,252 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 12:37:53,252 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 12:37:56,660 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 54 for LOIs [2023-12-02 12:37:56,676 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 31 for LOIs [2023-12-02 12:37:57,344 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 52 for LOIs [2023-12-02 12:37:57,402 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 30 for LOIs [2023-12-02 12:37:57,472 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 12:38:00,522 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3394#(and (= |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1| |timeShift_getWaterLevel_#res#1|) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1| 2147483647) (= ~waterLevel~0 |timeShift_getWaterLevel_#res#1|) (= ~methaneLevelCritical~0 0) (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1| 1) (= |old(~pumpRunning~0)| 0) (= |old(~waterLevel~0)| ~waterLevel~0) (<= 2 |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1|) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1| 2)) (= ~switchedOnBeforeTS~0 0) (not (= 0 ~systemActive~0)) (= ~pumpRunning~0 1) (exists ((|v_ULTIMATE.start_test_~tmp___2~0#1_BEFORE_CALL_5| Int) (|v_ULTIMATE.start_test_~tmp___1~0#1_BEFORE_CALL_5| Int)) (and (<= 0 (+ 2147483648 |v_ULTIMATE.start_test_~tmp___2~0#1_BEFORE_CALL_5|)) (or (and (= 1 ~systemActive~0) (not (= |v_ULTIMATE.start_test_~tmp___2~0#1_BEFORE_CALL_5| 0))) (and (<= 0 (+ |v_ULTIMATE.start_test_~tmp___1~0#1_BEFORE_CALL_5| 2147483648)) (<= |v_ULTIMATE.start_test_~tmp___1~0#1_BEFORE_CALL_5| 2147483647) (= |v_ULTIMATE.start_test_~tmp___2~0#1_BEFORE_CALL_5| 0))) (<= |v_ULTIMATE.start_test_~tmp___2~0#1_BEFORE_CALL_5| 2147483647))))' at error location [2023-12-02 12:38:00,522 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 12:38:00,522 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 12:38:00,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6, 6] total 14 [2023-12-02 12:38:00,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976876748] [2023-12-02 12:38:00,523 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 12:38:00,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-02 12:38:00,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:38:00,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-02 12:38:00,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=194, Invalid=1528, Unknown=0, NotChecked=0, Total=1722 [2023-12-02 12:38:00,526 INFO L87 Difference]: Start difference. First operand 228 states and 280 transitions. Second operand has 14 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 7 states have call successors, (15), 5 states have call predecessors, (15), 5 states have return successors, (14), 6 states have call predecessors, (14), 7 states have call successors, (14) [2023-12-02 12:38:01,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:38:01,592 INFO L93 Difference]: Finished difference Result 667 states and 854 transitions. [2023-12-02 12:38:01,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-12-02 12:38:01,592 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 7 states have call successors, (15), 5 states have call predecessors, (15), 5 states have return successors, (14), 6 states have call predecessors, (14), 7 states have call successors, (14) Word has length 60 [2023-12-02 12:38:01,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:38:01,596 INFO L225 Difference]: With dead ends: 667 [2023-12-02 12:38:01,596 INFO L226 Difference]: Without dead ends: 441 [2023-12-02 12:38:01,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 160 SyntacticMatches, 3 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1382 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=553, Invalid=3737, Unknown=0, NotChecked=0, Total=4290 [2023-12-02 12:38:01,600 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 290 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 179 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 179 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-02 12:38:01,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 324 Invalid, 780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [179 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 12:38:01,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2023-12-02 12:38:01,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 394. [2023-12-02 12:38:01,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 261 states have (on average 1.1839080459770115) internal successors, (309), 293 states have internal predecessors, (309), 65 states have call successors, (65), 53 states have call predecessors, (65), 67 states have return successors, (114), 67 states have call predecessors, (114), 65 states have call successors, (114) [2023-12-02 12:38:01,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 488 transitions. [2023-12-02 12:38:01,636 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 488 transitions. Word has length 60 [2023-12-02 12:38:01,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:38:01,636 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 488 transitions. [2023-12-02 12:38:01,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 7 states have call successors, (15), 5 states have call predecessors, (15), 5 states have return successors, (14), 6 states have call predecessors, (14), 7 states have call successors, (14) [2023-12-02 12:38:01,637 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 488 transitions. [2023-12-02 12:38:01,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-02 12:38:01,638 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:38:01,638 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2023-12-02 12:38:01,644 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a382fff-abf6-4af9-a3c6-951534fa4543/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 12:38:01,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a382fff-abf6-4af9-a3c6-951534fa4543/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 12:38:01,839 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:38:01,840 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:38:01,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1919934150, now seen corresponding path program 1 times [2023-12-02 12:38:01,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:38:01,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888267497] [2023-12-02 12:38:01,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:38:01,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:38:01,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:38:02,083 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 20 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 12:38:02,083 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:38:02,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888267497] [2023-12-02 12:38:02,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888267497] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 12:38:02,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [237777756] [2023-12-02 12:38:02,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:38:02,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 12:38:02,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a382fff-abf6-4af9-a3c6-951534fa4543/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:38:02,090 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a382fff-abf6-4af9-a3c6-951534fa4543/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 12:38:02,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a382fff-abf6-4af9-a3c6-951534fa4543/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 12:38:02,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:38:02,176 INFO L262 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-02 12:38:02,179 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 12:38:02,226 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-02 12:38:02,226 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 12:38:02,299 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-02 12:38:02,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [237777756] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 12:38:02,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1052418471] [2023-12-02 12:38:02,303 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2023-12-02 12:38:02,303 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 12:38:02,304 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 12:38:02,304 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 12:38:02,304 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 12:38:04,341 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 17 for LOIs [2023-12-02 12:38:04,345 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 48 for LOIs [2023-12-02 12:38:04,987 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 75 for LOIs [2023-12-02 12:38:05,033 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 65 for LOIs [2023-12-02 12:38:05,161 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 16 for LOIs [2023-12-02 12:38:05,163 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 12:38:07,902 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5279#(and (= |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1| |timeShift_getWaterLevel_#res#1|) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1| 0)) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1| 2147483647) (= ~waterLevel~0 |timeShift_getWaterLevel_#res#1|) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1|) (<= 0 (+ 2147483648 |old(~pumpRunning~0)|)) (<= |old(~pumpRunning~0)| 2147483647) (<= 0 (+ ~waterLevel~0 2147483648)) (<= 0 (+ |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1| 2147483648)) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1| 2147483647) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1| 2)) (= ~switchedOnBeforeTS~0 0))' at error location [2023-12-02 12:38:07,903 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 12:38:07,903 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 12:38:07,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6, 6] total 13 [2023-12-02 12:38:07,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865926854] [2023-12-02 12:38:07,903 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 12:38:07,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-02 12:38:07,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:38:07,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-02 12:38:07,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=1868, Unknown=0, NotChecked=0, Total=2070 [2023-12-02 12:38:07,905 INFO L87 Difference]: Start difference. First operand 394 states and 488 transitions. Second operand has 13 states, 11 states have (on average 6.0) internal successors, (66), 11 states have internal predecessors, (66), 4 states have call successors, (14), 3 states have call predecessors, (14), 5 states have return successors, (17), 7 states have call predecessors, (17), 4 states have call successors, (17) [2023-12-02 12:38:08,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:38:08,578 INFO L93 Difference]: Finished difference Result 779 states and 1004 transitions. [2023-12-02 12:38:08,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-02 12:38:08,579 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 6.0) internal successors, (66), 11 states have internal predecessors, (66), 4 states have call successors, (14), 3 states have call predecessors, (14), 5 states have return successors, (17), 7 states have call predecessors, (17), 4 states have call successors, (17) Word has length 63 [2023-12-02 12:38:08,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:38:08,581 INFO L225 Difference]: With dead ends: 779 [2023-12-02 12:38:08,581 INFO L226 Difference]: Without dead ends: 480 [2023-12-02 12:38:08,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 163 SyntacticMatches, 3 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1432 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=419, Invalid=3871, Unknown=0, NotChecked=0, Total=4290 [2023-12-02 12:38:08,585 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 190 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 12:38:08,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 381 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 12:38:08,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2023-12-02 12:38:08,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 435. [2023-12-02 12:38:08,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 287 states have (on average 1.1602787456445993) internal successors, (333), 323 states have internal predecessors, (333), 73 states have call successors, (73), 61 states have call predecessors, (73), 74 states have return successors, (121), 74 states have call predecessors, (121), 73 states have call successors, (121) [2023-12-02 12:38:08,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 527 transitions. [2023-12-02 12:38:08,633 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 527 transitions. Word has length 63 [2023-12-02 12:38:08,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:38:08,633 INFO L495 AbstractCegarLoop]: Abstraction has 435 states and 527 transitions. [2023-12-02 12:38:08,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 6.0) internal successors, (66), 11 states have internal predecessors, (66), 4 states have call successors, (14), 3 states have call predecessors, (14), 5 states have return successors, (17), 7 states have call predecessors, (17), 4 states have call successors, (17) [2023-12-02 12:38:08,634 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 527 transitions. [2023-12-02 12:38:08,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-02 12:38:08,636 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:38:08,636 INFO L195 NwaCegarLoop]: trace histogram [5, 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] [2023-12-02 12:38:08,642 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a382fff-abf6-4af9-a3c6-951534fa4543/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 12:38:08,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a382fff-abf6-4af9-a3c6-951534fa4543/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-12-02 12:38:08,837 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:38:08,838 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:38:08,838 INFO L85 PathProgramCache]: Analyzing trace with hash 168850700, now seen corresponding path program 1 times [2023-12-02 12:38:08,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:38:08,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744059861] [2023-12-02 12:38:08,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:38:08,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:38:08,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:38:09,485 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 12 proven. 42 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-02 12:38:09,485 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:38:09,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744059861] [2023-12-02 12:38:09,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744059861] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 12:38:09,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [692253358] [2023-12-02 12:38:09,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:38:09,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 12:38:09,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a382fff-abf6-4af9-a3c6-951534fa4543/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:38:09,486 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a382fff-abf6-4af9-a3c6-951534fa4543/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 12:38:09,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a382fff-abf6-4af9-a3c6-951534fa4543/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 12:38:09,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:38:09,594 INFO L262 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-02 12:38:09,598 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 12:38:09,891 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 55 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-02 12:38:09,891 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 12:38:10,274 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 49 proven. 5 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-02 12:38:10,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [692253358] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 12:38:10,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [674458553] [2023-12-02 12:38:10,277 INFO L159 IcfgInterpreter]: Started Sifa with 37 locations of interest [2023-12-02 12:38:10,277 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 12:38:10,278 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 12:38:10,278 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 12:38:10,278 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 12:38:12,339 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 15 for LOIs [2023-12-02 12:38:12,342 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 47 for LOIs [2023-12-02 12:38:12,615 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 54 for LOIs [2023-12-02 12:38:12,631 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 46 for LOIs [2023-12-02 12:38:12,667 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 12:38:14,910 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '7526#(and (= |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1| |timeShift_getWaterLevel_#res#1|) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1| 0)) (= ~waterLevel~0 |timeShift_getWaterLevel_#res#1|) (<= ~pumpRunning~0 1) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1|) (<= 0 (+ 2147483648 |old(~pumpRunning~0)|)) (<= |old(~pumpRunning~0)| 2147483647) (<= 0 (+ ~waterLevel~0 2147483648)) (<= ~waterLevel~0 2147483647) (<= 0 ~pumpRunning~0) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1| 2)) (= ~switchedOnBeforeTS~0 0))' at error location [2023-12-02 12:38:14,910 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 12:38:14,910 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 12:38:14,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 12, 11] total 31 [2023-12-02 12:38:14,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82260714] [2023-12-02 12:38:14,911 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 12:38:14,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-12-02 12:38:14,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:38:14,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-12-02 12:38:14,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=329, Invalid=2977, Unknown=0, NotChecked=0, Total=3306 [2023-12-02 12:38:14,914 INFO L87 Difference]: Start difference. First operand 435 states and 527 transitions. Second operand has 31 states, 30 states have (on average 4.433333333333334) internal successors, (133), 30 states have internal predecessors, (133), 16 states have call successors, (25), 8 states have call predecessors, (25), 11 states have return successors, (24), 15 states have call predecessors, (24), 15 states have call successors, (24) [2023-12-02 12:38:17,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:38:17,773 INFO L93 Difference]: Finished difference Result 1007 states and 1277 transitions. [2023-12-02 12:38:17,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2023-12-02 12:38:17,774 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 4.433333333333334) internal successors, (133), 30 states have internal predecessors, (133), 16 states have call successors, (25), 8 states have call predecessors, (25), 11 states have return successors, (24), 15 states have call predecessors, (24), 15 states have call successors, (24) Word has length 85 [2023-12-02 12:38:17,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:38:17,775 INFO L225 Difference]: With dead ends: 1007 [2023-12-02 12:38:17,775 INFO L226 Difference]: Without dead ends: 0 [2023-12-02 12:38:17,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 378 GetRequests, 238 SyntacticMatches, 14 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6089 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=1800, Invalid=14456, Unknown=0, NotChecked=0, Total=16256 [2023-12-02 12:38:17,783 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 895 mSDsluCounter, 678 mSDsCounter, 0 mSdLazyCounter, 1523 mSolverCounterSat, 638 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 896 SdHoareTripleChecker+Valid, 764 SdHoareTripleChecker+Invalid, 2161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 638 IncrementalHoareTripleChecker+Valid, 1523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-02 12:38:17,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [896 Valid, 764 Invalid, 2161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [638 Valid, 1523 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-02 12:38:17,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-02 12:38:17,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-02 12:38:17,784 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) [2023-12-02 12:38:17,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-02 12:38:17,785 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 85 [2023-12-02 12:38:17,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:38:17,785 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-02 12:38:17,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 4.433333333333334) internal successors, (133), 30 states have internal predecessors, (133), 16 states have call successors, (25), 8 states have call predecessors, (25), 11 states have return successors, (24), 15 states have call predecessors, (24), 15 states have call successors, (24) [2023-12-02 12:38:17,785 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-02 12:38:17,785 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 12:38:17,787 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 12:38:17,792 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a382fff-abf6-4af9-a3c6-951534fa4543/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 12:38:17,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a382fff-abf6-4af9-a3c6-951534fa4543/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-12-02 12:38:17,990 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-02 12:38:20,200 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 790 796) no Hoare annotation was computed. [2023-12-02 12:38:20,201 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 790 796) the Hoare annotation is: true [2023-12-02 12:38:20,201 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 84 95) the Hoare annotation is: true [2023-12-02 12:38:20,201 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 84 95) no Hoare annotation was computed. [2023-12-02 12:38:20,201 INFO L899 garLoopResultBuilder]: For program point L770-2(lines 766 788) no Hoare annotation was computed. [2023-12-02 12:38:20,201 INFO L899 garLoopResultBuilder]: For program point L832(lines 832 840) no Hoare annotation was computed. [2023-12-02 12:38:20,201 INFO L895 garLoopResultBuilder]: At program point L192(line 192) the Hoare annotation is: (let ((.cse5 (= ~switchedOnBeforeTS~0 0))) (let ((.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse7 (not (= |old(~waterLevel~0)| 2))) (.cse0 (< 1 |old(~waterLevel~0)|)) (.cse11 (not .cse5)) (.cse2 (= ~pumpRunning~0 0)) (.cse8 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse3 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1| ~waterLevel~0)) (.cse10 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse6 (= 0 ~systemActive~0)) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 .cse1 (and .cse2 .cse3 .cse4 .cse5) .cse6) (or .cse1 .cse7 .cse6) (let ((.cse9 (= ~waterLevel~0 1))) (or (and .cse8 .cse9 .cse10 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1| 1)) .cse7 .cse6 (and .cse11 .cse2 .cse3 .cse9))) (let ((.cse12 (or (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) (<= 1 |old(~waterLevel~0)|)) .cse4))) (or .cse0 (and .cse11 .cse2 .cse3 (or (< |old(~waterLevel~0)| 1) (< ~waterLevel~0 |old(~waterLevel~0)|)) .cse12) (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (and .cse8 .cse3 .cse12 (<= ~waterLevel~0 0) .cse10) .cse6 (= |old(~switchedOnBeforeTS~0)| 0)))))) [2023-12-02 12:38:20,201 INFO L899 garLoopResultBuilder]: For program point L192-1(line 192) no Hoare annotation was computed. [2023-12-02 12:38:20,201 INFO L899 garLoopResultBuilder]: For program point L828(lines 828 845) no Hoare annotation was computed. [2023-12-02 12:38:20,202 INFO L895 garLoopResultBuilder]: At program point L177(line 177) the Hoare annotation is: (let ((.cse2 (not (= |old(~waterLevel~0)| 2))) (.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= ~switchedOnBeforeTS~0 0))) (.cse4 (= |old(~switchedOnBeforeTS~0)| 0)) (.cse5 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse6 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse3 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or (and .cse5 (= 2 ~waterLevel~0)) .cse2 .cse3) (or (< 1 |old(~waterLevel~0)|) .cse1 .cse3 (and .cse0 (= ~pumpRunning~0 0) .cse6) .cse4) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (and .cse5 .cse6 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) .cse3 (< 2 |old(~waterLevel~0)|)))) [2023-12-02 12:38:20,202 INFO L899 garLoopResultBuilder]: For program point L177-1(line 177) no Hoare annotation was computed. [2023-12-02 12:38:20,202 INFO L899 garLoopResultBuilder]: For program point L685(line 685) no Hoare annotation was computed. [2023-12-02 12:38:20,202 INFO L895 garLoopResultBuilder]: At program point L838(line 838) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse2 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (< 2 |old(~waterLevel~0)|)) (or (< 1 |old(~waterLevel~0)|) (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (and .cse1 (or (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) (<= 1 |old(~waterLevel~0)|)) (= |old(~waterLevel~0)| ~waterLevel~0)) (<= ~waterLevel~0 0) .cse2) .cse0) (or (not (= |old(~waterLevel~0)| 2)) .cse0 (and .cse1 (= ~waterLevel~0 1) .cse2)))) [2023-12-02 12:38:20,202 INFO L899 garLoopResultBuilder]: For program point L194(lines 194 204) no Hoare annotation was computed. [2023-12-02 12:38:20,202 INFO L899 garLoopResultBuilder]: For program point L190(lines 190 207) no Hoare annotation was computed. [2023-12-02 12:38:20,202 INFO L899 garLoopResultBuilder]: For program point L190-1(lines 182 210) no Hoare annotation was computed. [2023-12-02 12:38:20,202 INFO L895 garLoopResultBuilder]: At program point L843(line 843) the Hoare annotation is: (let ((.cse4 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse6 (= |old(~switchedOnBeforeTS~0)| 0)) (.cse1 (= |old(~pumpRunning~0)| 0)) (.cse7 (not (= |old(~waterLevel~0)| 1))) (.cse5 (<= 1 |old(~waterLevel~0)|)) (.cse3 (= 0 ~systemActive~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse2 (= ~switchedOnBeforeTS~0 0))) (and (or (not (= |old(~waterLevel~0)| 2)) (and .cse0 (= 2 ~waterLevel~0) .cse1 .cse2) .cse3) (or .cse4 .cse5 .cse3 .cse6) (or .cse4 .cse7 .cse3 .cse6) (or (not .cse1) (and .cse7 .cse5) .cse3 (and .cse0 (= |old(~waterLevel~0)| ~waterLevel~0) .cse2)))) [2023-12-02 12:38:20,203 INFO L899 garLoopResultBuilder]: For program point L843-1(lines 824 848) no Hoare annotation was computed. [2023-12-02 12:38:20,203 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 763 789) the Hoare annotation is: (let ((.cse2 (not (= |old(~waterLevel~0)| 2))) (.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= ~switchedOnBeforeTS~0 0))) (.cse4 (= |old(~switchedOnBeforeTS~0)| 0)) (.cse5 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse6 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse3 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or (and .cse5 (= 2 ~waterLevel~0)) .cse2 .cse3) (or (< 1 |old(~waterLevel~0)|) .cse1 .cse3 (and .cse0 (= ~pumpRunning~0 0) .cse6) .cse4) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (and .cse5 .cse6 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) .cse3 (< 2 |old(~waterLevel~0)|)))) [2023-12-02 12:38:20,203 INFO L899 garLoopResultBuilder]: For program point L777-1(lines 777 783) no Hoare annotation was computed. [2023-12-02 12:38:20,203 INFO L899 garLoopResultBuilder]: For program point L195(lines 195 201) no Hoare annotation was computed. [2023-12-02 12:38:20,203 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 763 789) no Hoare annotation was computed. [2023-12-02 12:38:20,203 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 685) no Hoare annotation was computed. [2023-12-02 12:38:20,203 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 580 609) no Hoare annotation was computed. [2023-12-02 12:38:20,203 INFO L899 garLoopResultBuilder]: For program point L605(lines 580 609) no Hoare annotation was computed. [2023-12-02 12:38:20,204 INFO L899 garLoopResultBuilder]: For program point L601(line 601) no Hoare annotation was computed. [2023-12-02 12:38:20,204 INFO L899 garLoopResultBuilder]: For program point L594(lines 594 598) no Hoare annotation was computed. [2023-12-02 12:38:20,204 INFO L902 garLoopResultBuilder]: At program point L594-1(lines 594 598) the Hoare annotation is: true [2023-12-02 12:38:20,204 INFO L902 garLoopResultBuilder]: At program point L590-2(lines 590 604) the Hoare annotation is: true [2023-12-02 12:38:20,204 INFO L902 garLoopResultBuilder]: At program point L586(line 586) the Hoare annotation is: true [2023-12-02 12:38:20,204 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 580 609) the Hoare annotation is: true [2023-12-02 12:38:20,204 INFO L899 garLoopResultBuilder]: For program point L586-1(line 586) no Hoare annotation was computed. [2023-12-02 12:38:20,204 INFO L899 garLoopResultBuilder]: For program point L667(lines 667 674) no Hoare annotation was computed. [2023-12-02 12:38:20,204 INFO L899 garLoopResultBuilder]: For program point L667-2(lines 667 674) no Hoare annotation was computed. [2023-12-02 12:38:20,204 INFO L899 garLoopResultBuilder]: For program point L721(lines 721 727) no Hoare annotation was computed. [2023-12-02 12:38:20,205 INFO L899 garLoopResultBuilder]: For program point L721-1(lines 721 727) no Hoare annotation was computed. [2023-12-02 12:38:20,205 INFO L895 garLoopResultBuilder]: At program point L746(lines 701 748) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~4#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (not (= 0 ~systemActive~0)))) (or (and (= 2 ~waterLevel~0) .cse0 .cse1 .cse2) (and (<= ~waterLevel~0 1) .cse0 .cse1 (= ~pumpRunning~0 ~switchedOnBeforeTS~0) .cse2) (and (= ~pumpRunning~0 0) .cse0 .cse1 (or (< ~waterLevel~0 1) (= ~waterLevel~0 1)) .cse2))) [2023-12-02 12:38:20,205 INFO L895 garLoopResultBuilder]: At program point L713(line 713) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~4#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (not (= 0 ~systemActive~0)))) (or (and (= 2 ~waterLevel~0) .cse0 .cse1 .cse2) (and (<= ~waterLevel~0 1) .cse0 .cse1 (= ~pumpRunning~0 ~switchedOnBeforeTS~0) .cse2) (and (= ~pumpRunning~0 0) .cse0 .cse1 (or (< ~waterLevel~0 1) (= ~waterLevel~0 1)) .cse2))) [2023-12-02 12:38:20,205 INFO L895 garLoopResultBuilder]: At program point L739-2(lines 731 744) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~4#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (not (= 0 ~systemActive~0)))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1 (<= ~waterLevel~0 2) .cse2) (and (= 2 ~waterLevel~0) .cse0 .cse1 .cse2) (and (<= ~waterLevel~0 1) .cse0 .cse1 (= ~pumpRunning~0 ~switchedOnBeforeTS~0) .cse2))) [2023-12-02 12:38:20,205 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-02 12:38:20,205 INFO L899 garLoopResultBuilder]: For program point L702(lines 701 748) no Hoare annotation was computed. [2023-12-02 12:38:20,205 INFO L895 garLoopResultBuilder]: At program point L723(line 723) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~4#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (not (= 0 ~systemActive~0)))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1 (<= ~waterLevel~0 2) .cse2) (and (= 2 ~waterLevel~0) .cse0 .cse1 .cse2) (and (<= ~waterLevel~0 1) .cse0 .cse1 (= ~pumpRunning~0 ~switchedOnBeforeTS~0) .cse2))) [2023-12-02 12:38:20,205 INFO L899 garLoopResultBuilder]: For program point L752(lines 691 756) no Hoare annotation was computed. [2023-12-02 12:38:20,206 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-02 12:38:20,206 INFO L899 garLoopResultBuilder]: For program point L711(lines 711 717) no Hoare annotation was computed. [2023-12-02 12:38:20,206 INFO L899 garLoopResultBuilder]: For program point L711-1(lines 711 717) no Hoare annotation was computed. [2023-12-02 12:38:20,206 INFO L895 garLoopResultBuilder]: At program point L749(lines 700 750) the Hoare annotation is: false [2023-12-02 12:38:20,206 INFO L895 garLoopResultBuilder]: At program point L812(line 812) the Hoare annotation is: (let ((.cse2 (= ~switchedOnBeforeTS~0 0))) (let ((.cse3 (not .cse2)) (.cse0 (< 2 ~waterLevel~0)) (.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|))) (or .cse3 .cse4 (< 1 ~waterLevel~0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~6#1| 0) .cse1) (or .cse3 .cse0 .cse4 (= ~pumpRunning~0 0) .cse1)))) [2023-12-02 12:38:20,206 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 798 822) the Hoare annotation is: (or (< 2 ~waterLevel~0) (= 0 ~systemActive~0) (= ~pumpRunning~0 ~switchedOnBeforeTS~0) (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|))) [2023-12-02 12:38:20,206 INFO L899 garLoopResultBuilder]: For program point L806(lines 806 814) no Hoare annotation was computed. [2023-12-02 12:38:20,206 INFO L899 garLoopResultBuilder]: For program point L802(lines 802 819) no Hoare annotation was computed. [2023-12-02 12:38:20,206 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 798 822) no Hoare annotation was computed. [2023-12-02 12:38:20,207 INFO L895 garLoopResultBuilder]: At program point L817(line 817) the Hoare annotation is: (let ((.cse0 (< 2 ~waterLevel~0)) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 (= ~pumpRunning~0 ~switchedOnBeforeTS~0) (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|))) (or (not (= ~switchedOnBeforeTS~0 0)) .cse0 (not (= |old(~pumpRunning~0)| 0)) .cse1))) [2023-12-02 12:38:20,207 INFO L899 garLoopResultBuilder]: For program point L817-1(lines 798 822) no Hoare annotation was computed. [2023-12-02 12:38:20,207 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 72 83) no Hoare annotation was computed. [2023-12-02 12:38:20,207 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 72 83) the Hoare annotation is: (let ((.cse7 (not (= |old(~waterLevel~0)| 2))) (.cse3 (= ~pumpRunning~0 0)) (.cse0 (not (= |old(~waterLevel~0)| 1))) (.cse6 (= 0 ~systemActive~0))) (let ((.cse2 (not (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (.cse5 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse4 (<= 1 |old(~waterLevel~0)|)) (.cse1 (and (or .cse7 .cse6) (or .cse3 .cse0 .cse6)))) (and (or .cse0 .cse1 .cse2 (= ~waterLevel~0 1)) (or (not .cse3) (and .cse0 .cse4) .cse5 .cse6) (or .cse2 .cse5 .cse4 .cse6) (or (= 2 ~waterLevel~0) .cse1 .cse7)))) [2023-12-02 12:38:20,207 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 894 902) no Hoare annotation was computed. [2023-12-02 12:38:20,207 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 894 902) the Hoare annotation is: true [2023-12-02 12:38:20,210 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:38:20,212 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 12:38:20,221 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 12:38:20 BoogieIcfgContainer [2023-12-02 12:38:20,221 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 12:38:20,221 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 12:38:20,221 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 12:38:20,221 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 12:38:20,221 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:37:50" (3/4) ... [2023-12-02 12:38:20,223 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 12:38:20,225 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2023-12-02 12:38:20,225 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2023-12-02 12:38:20,225 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2023-12-02 12:38:20,225 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2023-12-02 12:38:20,225 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2023-12-02 12:38:20,225 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2023-12-02 12:38:20,225 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2023-12-02 12:38:20,232 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 52 nodes and edges [2023-12-02 12:38:20,232 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2023-12-02 12:38:20,233 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-12-02 12:38:20,234 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 12:38:20,234 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 12:38:20,343 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a382fff-abf6-4af9-a3c6-951534fa4543/bin/utaipan-verify-nQ1chXbOIh/witness.graphml [2023-12-02 12:38:20,344 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a382fff-abf6-4af9-a3c6-951534fa4543/bin/utaipan-verify-nQ1chXbOIh/witness.yml [2023-12-02 12:38:20,344 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 12:38:20,345 INFO L158 Benchmark]: Toolchain (without parser) took 31109.20ms. Allocated memory was 167.8MB in the beginning and 679.5MB in the end (delta: 511.7MB). Free memory was 139.3MB in the beginning and 589.4MB in the end (delta: -450.1MB). Peak memory consumption was 61.2MB. Max. memory is 16.1GB. [2023-12-02 12:38:20,345 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 125.8MB. Free memory is still 98.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 12:38:20,345 INFO L158 Benchmark]: CACSL2BoogieTranslator took 399.32ms. Allocated memory is still 167.8MB. Free memory was 138.9MB in the beginning and 119.2MB in the end (delta: 19.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-12-02 12:38:20,346 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.16ms. Allocated memory is still 167.8MB. Free memory was 119.2MB in the beginning and 117.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 12:38:20,346 INFO L158 Benchmark]: Boogie Preprocessor took 28.85ms. Allocated memory is still 167.8MB. Free memory was 117.1MB in the beginning and 115.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 12:38:20,346 INFO L158 Benchmark]: RCFGBuilder took 520.26ms. Allocated memory is still 167.8MB. Free memory was 115.0MB in the beginning and 111.7MB in the end (delta: 3.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-12-02 12:38:20,347 INFO L158 Benchmark]: TraceAbstraction took 29983.81ms. Allocated memory was 167.8MB in the beginning and 679.5MB in the end (delta: 511.7MB). Free memory was 111.0MB in the beginning and 596.8MB in the end (delta: -485.8MB). Peak memory consumption was 386.3MB. Max. memory is 16.1GB. [2023-12-02 12:38:20,347 INFO L158 Benchmark]: Witness Printer took 123.13ms. Allocated memory is still 679.5MB. Free memory was 596.8MB in the beginning and 589.4MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-12-02 12:38:20,349 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 125.8MB. Free memory is still 98.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 399.32ms. Allocated memory is still 167.8MB. Free memory was 138.9MB in the beginning and 119.2MB in the end (delta: 19.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.16ms. Allocated memory is still 167.8MB. Free memory was 119.2MB in the beginning and 117.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.85ms. Allocated memory is still 167.8MB. Free memory was 117.1MB in the beginning and 115.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 520.26ms. Allocated memory is still 167.8MB. Free memory was 115.0MB in the beginning and 111.7MB in the end (delta: 3.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 29983.81ms. Allocated memory was 167.8MB in the beginning and 679.5MB in the end (delta: 511.7MB). Free memory was 111.0MB in the beginning and 596.8MB in the end (delta: -485.8MB). Peak memory consumption was 386.3MB. Max. memory is 16.1GB. * Witness Printer took 123.13ms. Allocated memory is still 679.5MB. Free memory was 596.8MB in the beginning and 589.4MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] - GenericResultAtLocation [Line: 160]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [160] - GenericResultAtLocation [Line: 211]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [211] - GenericResultAtLocation [Line: 577]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [577] - GenericResultAtLocation [Line: 680]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [680] - GenericResultAtLocation [Line: 689]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [689] - GenericResultAtLocation [Line: 757]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [757] - GenericResultAtLocation [Line: 985]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [985] * 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: 685]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 58 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 29.9s, OverallIterations: 9, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1728 SdHoareTripleChecker+Valid, 2.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1707 mSDsluCounter, 2265 SdHoareTripleChecker+Invalid, 1.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1747 mSDsCounter, 1028 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3213 IncrementalHoareTripleChecker+Invalid, 4241 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1028 mSolverCounterUnsat, 518 mSDtfsCounter, 3213 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 887 GetRequests, 583 SyntacticMatches, 20 SemanticMatches, 284 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8940 ImplicationChecksByTransitivity, 11.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=435occurred in iteration=8, InterpolantAutomatonStates: 173, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 134 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 21 LocationsWithAnnotation, 758 PreInvPairs, 877 NumberOfFragments, 847 HoareAnnotationTreeSize, 758 FomulaSimplifications, 4752 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 21 FomulaSimplificationsInter, 9249 FormulaSimplificationTreeSizeReductionInter, 2.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 602 NumberOfCodeBlocks, 602 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 795 ConstructedInterpolants, 0 QuantifiedInterpolants, 2446 SizeOfPredicates, 23 NumberOfNonLiveVariables, 922 ConjunctsInSsa, 63 ConjunctsInUnsatCore, 15 InterpolantComputations, 6 PerfectInterpolantSequences, 311/413 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: 701]: Loop Invariant Derived loop invariant: ((((((2 == waterLevel) && (tmp == 1)) && (splverifierCounter == 0)) && !((0 == systemActive))) || (((((waterLevel <= 1) && (tmp == 1)) && (splverifierCounter == 0)) && (pumpRunning == switchedOnBeforeTS)) && !((0 == systemActive)))) || (((((pumpRunning == 0) && (tmp == 1)) && (splverifierCounter == 0)) && ((waterLevel < 1) || (waterLevel == 1))) && !((0 == systemActive)))) - InvariantResult [Line: 700]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 590]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-12-02 12:38:20,368 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a382fff-abf6-4af9-a3c6-951534fa4543/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE