./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product05.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 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_2b9c0370-c9d2-4533-b900-f2be6ae8a1fb/bin/utaipan-verify-QoSU8krkJ5/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b9c0370-c9d2-4533-b900-f2be6ae8a1fb/bin/utaipan-verify-QoSU8krkJ5/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b9c0370-c9d2-4533-b900-f2be6ae8a1fb/bin/utaipan-verify-QoSU8krkJ5/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b9c0370-c9d2-4533-b900-f2be6ae8a1fb/bin/utaipan-verify-QoSU8krkJ5/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product05.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b9c0370-c9d2-4533-b900-f2be6ae8a1fb/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b9c0370-c9d2-4533-b900-f2be6ae8a1fb/bin/utaipan-verify-QoSU8krkJ5 --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 9a99cd47cb89075c534de557ec34a8319cd4d0f3080d4e7f4d1690c11fbbfbd6 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 19:00:44,352 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 19:00:44,482 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b9c0370-c9d2-4533-b900-f2be6ae8a1fb/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-21 19:00:44,491 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 19:00:44,492 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 19:00:44,533 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 19:00:44,533 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 19:00:44,534 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 19:00:44,535 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 19:00:44,540 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 19:00:44,540 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-21 19:00:44,542 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-21 19:00:44,542 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-21 19:00:44,544 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-21 19:00:44,544 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-21 19:00:44,545 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-21 19:00:44,545 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-21 19:00:44,546 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-21 19:00:44,546 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-21 19:00:44,547 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-21 19:00:44,547 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-21 19:00:44,548 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-21 19:00:44,549 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 19:00:44,549 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 19:00:44,550 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 19:00:44,550 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 19:00:44,550 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 19:00:44,551 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 19:00:44,551 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 19:00:44,552 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 19:00:44,553 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 19:00:44,553 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 19:00:44,554 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 19:00:44,554 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 19:00:44,554 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 19:00:44,554 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 19:00:44,555 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 19:00:44,555 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:00:44,555 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 19:00:44,555 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 19:00:44,556 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 19:00:44,556 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-21 19:00:44,556 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 19:00:44,556 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 19:00:44,557 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 19:00:44,557 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-21 19:00:44,558 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 19:00:44,558 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_2b9c0370-c9d2-4533-b900-f2be6ae8a1fb/bin/utaipan-verify-QoSU8krkJ5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b9c0370-c9d2-4533-b900-f2be6ae8a1fb/bin/utaipan-verify-QoSU8krkJ5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a99cd47cb89075c534de557ec34a8319cd4d0f3080d4e7f4d1690c11fbbfbd6 [2023-11-21 19:00:44,900 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 19:00:44,934 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 19:00:44,937 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 19:00:44,939 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 19:00:44,940 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 19:00:44,942 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b9c0370-c9d2-4533-b900-f2be6ae8a1fb/bin/utaipan-verify-QoSU8krkJ5/../../sv-benchmarks/c/product-lines/minepump_spec5_product05.cil.c [2023-11-21 19:00:48,017 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 19:00:48,302 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 19:00:48,303 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b9c0370-c9d2-4533-b900-f2be6ae8a1fb/sv-benchmarks/c/product-lines/minepump_spec5_product05.cil.c [2023-11-21 19:00:48,321 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b9c0370-c9d2-4533-b900-f2be6ae8a1fb/bin/utaipan-verify-QoSU8krkJ5/data/48bd44e5c/1853abfc880340ea855760434b7c8399/FLAGf9af85f72 [2023-11-21 19:00:48,336 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b9c0370-c9d2-4533-b900-f2be6ae8a1fb/bin/utaipan-verify-QoSU8krkJ5/data/48bd44e5c/1853abfc880340ea855760434b7c8399 [2023-11-21 19:00:48,338 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 19:00:48,339 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 19:00:48,341 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 19:00:48,341 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 19:00:48,347 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 19:00:48,348 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:00:48" (1/1) ... [2023-11-21 19:00:48,349 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@207b181 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:00:48, skipping insertion in model container [2023-11-21 19:00:48,350 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:00:48" (1/1) ... [2023-11-21 19:00:48,396 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 19:00:48,816 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_2b9c0370-c9d2-4533-b900-f2be6ae8a1fb/sv-benchmarks/c/product-lines/minepump_spec5_product05.cil.c[14789,14802] [2023-11-21 19:00:48,832 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:00:48,857 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 19:00:48,869 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [49] [2023-11-21 19:00:48,871 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [101] [2023-11-21 19:00:48,872 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [244] [2023-11-21 19:00:48,872 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [312] [2023-11-21 19:00:48,872 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [678] [2023-11-21 19:00:48,873 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [687] [2023-11-21 19:00:48,873 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [787] [2023-11-21 19:00:48,873 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [867] [2023-11-21 19:00:48,968 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_2b9c0370-c9d2-4533-b900-f2be6ae8a1fb/sv-benchmarks/c/product-lines/minepump_spec5_product05.cil.c[14789,14802] [2023-11-21 19:00:48,976 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:00:49,014 INFO L206 MainTranslator]: Completed translation [2023-11-21 19:00:49,014 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:00:49 WrapperNode [2023-11-21 19:00:49,015 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 19:00:49,017 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 19:00:49,017 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 19:00:49,017 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 19:00:49,025 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:00:49" (1/1) ... [2023-11-21 19:00:49,045 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:00:49" (1/1) ... [2023-11-21 19:00:49,072 INFO L138 Inliner]: procedures = 52, calls = 95, calls flagged for inlining = 21, calls inlined = 18, statements flattened = 165 [2023-11-21 19:00:49,072 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 19:00:49,073 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 19:00:49,073 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 19:00:49,074 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 19:00:49,084 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:00:49" (1/1) ... [2023-11-21 19:00:49,084 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:00:49" (1/1) ... [2023-11-21 19:00:49,086 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:00:49" (1/1) ... [2023-11-21 19:00:49,087 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:00:49" (1/1) ... [2023-11-21 19:00:49,093 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:00:49" (1/1) ... [2023-11-21 19:00:49,098 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:00:49" (1/1) ... [2023-11-21 19:00:49,099 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:00:49" (1/1) ... [2023-11-21 19:00:49,101 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:00:49" (1/1) ... [2023-11-21 19:00:49,111 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 19:00:49,112 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 19:00:49,112 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 19:00:49,112 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 19:00:49,113 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:00:49" (1/1) ... [2023-11-21 19:00:49,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:00:49,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b9c0370-c9d2-4533-b900-f2be6ae8a1fb/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:00:49,174 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b9c0370-c9d2-4533-b900-f2be6ae8a1fb/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 19:00:49,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b9c0370-c9d2-4533-b900-f2be6ae8a1fb/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 19:00:49,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 19:00:49,219 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-11-21 19:00:49,219 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-11-21 19:00:49,219 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-21 19:00:49,219 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-21 19:00:49,219 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-21 19:00:49,220 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-21 19:00:49,220 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-21 19:00:49,220 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-21 19:00:49,220 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-11-21 19:00:49,221 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-11-21 19:00:49,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 19:00:49,221 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-21 19:00:49,221 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-21 19:00:49,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 19:00:49,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 19:00:49,291 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 19:00:49,293 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 19:00:49,561 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 19:00:49,684 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 19:00:49,684 INFO L308 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-21 19:00:49,686 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:00:49 BoogieIcfgContainer [2023-11-21 19:00:49,686 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 19:00:49,689 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 19:00:49,689 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 19:00:49,692 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 19:00:49,693 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 07:00:48" (1/3) ... [2023-11-21 19:00:49,693 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@656ac462 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:00:49, skipping insertion in model container [2023-11-21 19:00:49,693 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:00:49" (2/3) ... [2023-11-21 19:00:49,694 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@656ac462 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:00:49, skipping insertion in model container [2023-11-21 19:00:49,694 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:00:49" (3/3) ... [2023-11-21 19:00:49,695 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product05.cil.c [2023-11-21 19:00:49,714 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 19:00:49,715 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 19:00:49,761 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 19:00:49,768 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;@2f67870a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 19:00:49,768 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 19:00:49,772 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 39 states have internal predecessors, (47), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-21 19:00:49,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-21 19:00:49,782 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:00:49,782 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] [2023-11-21 19:00:49,783 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:00:49,788 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:00:49,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1334052225, now seen corresponding path program 1 times [2023-11-21 19:00:49,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:00:49,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714271266] [2023-11-21 19:00:49,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:00:49,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:00:49,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:00:49,992 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 19:00:49,993 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:00:49,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714271266] [2023-11-21 19:00:49,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714271266] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:00:49,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:00:49,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 19:00:49,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948537173] [2023-11-21 19:00:49,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:00:50,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-21 19:00:50,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:00:50,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-21 19:00:50,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-21 19:00:50,053 INFO L87 Difference]: Start difference. First operand has 51 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 39 states have internal predecessors, (47), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-21 19:00:50,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:00:50,149 INFO L93 Difference]: Finished difference Result 100 states and 135 transitions. [2023-11-21 19:00:50,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:00:50,151 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 [2023-11-21 19:00:50,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:00:50,161 INFO L225 Difference]: With dead ends: 100 [2023-11-21 19:00:50,161 INFO L226 Difference]: Without dead ends: 46 [2023-11-21 19:00:50,165 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 [2023-11-21 19:00:50,168 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 19:00:50,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 49 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 19:00:50,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2023-11-21 19:00:50,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2023-11-21 19:00:50,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 30 states have (on average 1.3) internal successors, (39), 35 states have internal predecessors, (39), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-21 19:00:50,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 58 transitions. [2023-11-21 19:00:50,212 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 58 transitions. Word has length 21 [2023-11-21 19:00:50,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:00:50,213 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 58 transitions. [2023-11-21 19:00:50,213 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) [2023-11-21 19:00:50,213 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 58 transitions. [2023-11-21 19:00:50,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-21 19:00:50,216 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:00:50,216 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] [2023-11-21 19:00:50,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 19:00:50,217 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:00:50,217 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:00:50,218 INFO L85 PathProgramCache]: Analyzing trace with hash -889981447, now seen corresponding path program 1 times [2023-11-21 19:00:50,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:00:50,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451171218] [2023-11-21 19:00:50,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:00:50,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:00:50,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:00:50,366 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 19:00:50,366 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:00:50,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451171218] [2023-11-21 19:00:50,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451171218] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:00:50,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:00:50,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 19:00:50,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850638363] [2023-11-21 19:00:50,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:00:50,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:00:50,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:00:50,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:00:50,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:00:50,371 INFO L87 Difference]: Start difference. First operand 46 states and 58 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 19:00:50,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:00:50,407 INFO L93 Difference]: Finished difference Result 90 states and 117 transitions. [2023-11-21 19:00:50,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:00:50,407 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 24 [2023-11-21 19:00:50,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:00:50,409 INFO L225 Difference]: With dead ends: 90 [2023-11-21 19:00:50,409 INFO L226 Difference]: Without dead ends: 46 [2023-11-21 19:00:50,410 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 [2023-11-21 19:00:50,412 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 45 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 19:00:50,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 43 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 19:00:50,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2023-11-21 19:00:50,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2023-11-21 19:00:50,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 35 states have internal predecessors, (38), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-21 19:00:50,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 57 transitions. [2023-11-21 19:00:50,423 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 57 transitions. Word has length 24 [2023-11-21 19:00:50,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:00:50,424 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 57 transitions. [2023-11-21 19:00:50,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 19:00:50,425 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 57 transitions. [2023-11-21 19:00:50,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-21 19:00:50,426 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:00:50,426 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] [2023-11-21 19:00:50,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 19:00:50,427 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:00:50,427 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:00:50,428 INFO L85 PathProgramCache]: Analyzing trace with hash 567539462, now seen corresponding path program 1 times [2023-11-21 19:00:50,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:00:50,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970616975] [2023-11-21 19:00:50,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:00:50,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:00:50,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:00:50,577 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 19:00:50,577 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:00:50,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970616975] [2023-11-21 19:00:50,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970616975] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:00:50,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:00:50,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 19:00:50,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248323085] [2023-11-21 19:00:50,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:00:50,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:00:50,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:00:50,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:00:50,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:00:50,581 INFO L87 Difference]: Start difference. First operand 46 states and 57 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2023-11-21 19:00:50,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:00:50,614 INFO L93 Difference]: Finished difference Result 69 states and 85 transitions. [2023-11-21 19:00:50,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:00:50,615 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 25 [2023-11-21 19:00:50,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:00:50,616 INFO L225 Difference]: With dead ends: 69 [2023-11-21 19:00:50,616 INFO L226 Difference]: Without dead ends: 38 [2023-11-21 19:00:50,617 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 [2023-11-21 19:00:50,619 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 7 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 19:00:50,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 59 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 19:00:50,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-11-21 19:00:50,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2023-11-21 19:00:50,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 25 states have (on average 1.28) internal successors, (32), 30 states have internal predecessors, (32), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-21 19:00:50,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 46 transitions. [2023-11-21 19:00:50,629 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 46 transitions. Word has length 25 [2023-11-21 19:00:50,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:00:50,629 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 46 transitions. [2023-11-21 19:00:50,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2023-11-21 19:00:50,629 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions. [2023-11-21 19:00:50,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-21 19:00:50,631 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:00:50,631 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] [2023-11-21 19:00:50,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 19:00:50,631 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:00:50,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:00:50,632 INFO L85 PathProgramCache]: Analyzing trace with hash -353840037, now seen corresponding path program 1 times [2023-11-21 19:00:50,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:00:50,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182173236] [2023-11-21 19:00:50,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:00:50,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:00:50,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:00:50,774 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 19:00:50,774 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:00:50,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182173236] [2023-11-21 19:00:50,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182173236] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:00:50,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:00:50,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 19:00:50,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290527517] [2023-11-21 19:00:50,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:00:50,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:00:50,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:00:50,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:00:50,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:00:50,778 INFO L87 Difference]: Start difference. First operand 38 states and 46 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 19:00:50,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:00:50,805 INFO L93 Difference]: Finished difference Result 72 states and 87 transitions. [2023-11-21 19:00:50,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:00:50,806 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 27 [2023-11-21 19:00:50,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:00:50,807 INFO L225 Difference]: With dead ends: 72 [2023-11-21 19:00:50,807 INFO L226 Difference]: Without dead ends: 36 [2023-11-21 19:00:50,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:00:50,810 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 28 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 19:00:50,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 30 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 19:00:50,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-11-21 19:00:50,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2023-11-21 19:00:50,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 27 states have internal predecessors, (29), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-21 19:00:50,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2023-11-21 19:00:50,820 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 41 transitions. Word has length 27 [2023-11-21 19:00:50,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:00:50,820 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 41 transitions. [2023-11-21 19:00:50,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 19:00:50,821 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2023-11-21 19:00:50,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-21 19:00:50,822 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:00:50,822 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] [2023-11-21 19:00:50,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 19:00:50,823 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:00:50,823 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:00:50,823 INFO L85 PathProgramCache]: Analyzing trace with hash -2065152944, now seen corresponding path program 1 times [2023-11-21 19:00:50,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:00:50,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480720832] [2023-11-21 19:00:50,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:00:50,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:00:50,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:00:50,953 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-21 19:00:50,953 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:00:50,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480720832] [2023-11-21 19:00:50,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480720832] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:00:50,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:00:50,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-21 19:00:50,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341980396] [2023-11-21 19:00:50,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:00:50,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 19:00:50,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:00:50,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 19:00:50,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-21 19:00:50,957 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-21 19:00:51,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:00:51,049 INFO L93 Difference]: Finished difference Result 68 states and 79 transitions. [2023-11-21 19:00:51,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 19:00:51,050 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 29 [2023-11-21 19:00:51,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:00:51,050 INFO L225 Difference]: With dead ends: 68 [2023-11-21 19:00:51,051 INFO L226 Difference]: Without dead ends: 0 [2023-11-21 19:00:51,051 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 [2023-11-21 19:00:51,053 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 19 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 19:00:51,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 83 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 19:00:51,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-21 19:00:51,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-21 19:00:51,054 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) [2023-11-21 19:00:51,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-21 19:00:51,055 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2023-11-21 19:00:51,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:00:51,055 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-21 19:00:51,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-21 19:00:51,056 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-21 19:00:51,056 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-21 19:00:51,058 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-21 19:00:51,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 19:00:51,061 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-21 19:00:51,171 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 139 145) no Hoare annotation was computed. [2023-11-21 19:00:51,172 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 139 145) the Hoare annotation is: true [2023-11-21 19:00:51,172 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 814 825) the Hoare annotation is: true [2023-11-21 19:00:51,172 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 814 825) no Hoare annotation was computed. [2023-11-21 19:00:51,173 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 689 718) no Hoare annotation was computed. [2023-11-21 19:00:51,173 INFO L899 garLoopResultBuilder]: For program point L703(lines 703 707) no Hoare annotation was computed. [2023-11-21 19:00:51,173 INFO L902 garLoopResultBuilder]: At program point L703-1(lines 703 707) the Hoare annotation is: true [2023-11-21 19:00:51,173 INFO L902 garLoopResultBuilder]: At program point L699-2(lines 699 713) the Hoare annotation is: true [2023-11-21 19:00:51,173 INFO L902 garLoopResultBuilder]: At program point L695(line 695) the Hoare annotation is: true [2023-11-21 19:00:51,174 INFO L899 garLoopResultBuilder]: For program point L695-1(line 695) no Hoare annotation was computed. [2023-11-21 19:00:51,174 INFO L899 garLoopResultBuilder]: For program point L714(lines 689 718) no Hoare annotation was computed. [2023-11-21 19:00:51,174 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 689 718) the Hoare annotation is: true [2023-11-21 19:00:51,174 INFO L899 garLoopResultBuilder]: For program point L710(line 710) no Hoare annotation was computed. [2023-11-21 19:00:51,174 INFO L899 garLoopResultBuilder]: For program point L126-1(lines 126 132) no Hoare annotation was computed. [2023-11-21 19:00:51,175 INFO L899 garLoopResultBuilder]: For program point L155(lines 155 163) no Hoare annotation was computed. [2023-11-21 19:00:51,175 INFO L899 garLoopResultBuilder]: For program point L151(lines 151 168) no Hoare annotation was computed. [2023-11-21 19:00:51,175 INFO L899 garLoopResultBuilder]: For program point L85(lines 85 91) no Hoare annotation was computed. [2023-11-21 19:00:51,175 INFO L899 garLoopResultBuilder]: For program point L119-2(lines 115 137) no Hoare annotation was computed. [2023-11-21 19:00:51,176 INFO L895 garLoopResultBuilder]: At program point L82(line 82) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= 1 ~systemActive~0))) [2023-11-21 19:00:51,176 INFO L899 garLoopResultBuilder]: For program point L82-1(line 82) no Hoare annotation was computed. [2023-11-21 19:00:51,176 INFO L895 garLoopResultBuilder]: At program point L161(line 161) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0))) [2023-11-21 19:00:51,176 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 112 138) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= 1 ~systemActive~0))) [2023-11-21 19:00:51,176 INFO L895 garLoopResultBuilder]: At program point L166(line 166) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= 1 ~systemActive~0))) [2023-11-21 19:00:51,177 INFO L899 garLoopResultBuilder]: For program point L166-1(lines 147 171) no Hoare annotation was computed. [2023-11-21 19:00:51,177 INFO L895 garLoopResultBuilder]: At program point L67(line 67) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= 1 ~systemActive~0))) [2023-11-21 19:00:51,177 INFO L899 garLoopResultBuilder]: For program point L67-1(line 67) no Hoare annotation was computed. [2023-11-21 19:00:51,177 INFO L899 garLoopResultBuilder]: For program point L84(lines 84 94) no Hoare annotation was computed. [2023-11-21 19:00:51,177 INFO L899 garLoopResultBuilder]: For program point L80(lines 80 97) no Hoare annotation was computed. [2023-11-21 19:00:51,178 INFO L899 garLoopResultBuilder]: For program point L80-1(lines 72 100) no Hoare annotation was computed. [2023-11-21 19:00:51,178 INFO L899 garLoopResultBuilder]: For program point L683(line 683) no Hoare annotation was computed. [2023-11-21 19:00:51,178 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 112 138) no Hoare annotation was computed. [2023-11-21 19:00:51,178 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 683) no Hoare annotation was computed. [2023-11-21 19:00:51,178 INFO L895 garLoopResultBuilder]: At program point L304(lines 257 305) the Hoare annotation is: false [2023-11-21 19:00:51,179 INFO L899 garLoopResultBuilder]: For program point L259(lines 258 303) no Hoare annotation was computed. [2023-11-21 19:00:51,179 INFO L895 garLoopResultBuilder]: At program point L280(line 280) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2023-11-21 19:00:51,179 INFO L895 garLoopResultBuilder]: At program point L301(lines 258 303) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2023-11-21 19:00:51,179 INFO L899 garLoopResultBuilder]: For program point L268(lines 268 274) no Hoare annotation was computed. [2023-11-21 19:00:51,180 INFO L899 garLoopResultBuilder]: For program point L268-1(lines 268 274) no Hoare annotation was computed. [2023-11-21 19:00:51,180 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-21 19:00:51,180 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-21 19:00:51,180 INFO L895 garLoopResultBuilder]: At program point L294-2(lines 288 299) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2023-11-21 19:00:51,180 INFO L899 garLoopResultBuilder]: For program point L278(lines 278 284) no Hoare annotation was computed. [2023-11-21 19:00:51,181 INFO L899 garLoopResultBuilder]: For program point L278-1(lines 278 284) no Hoare annotation was computed. [2023-11-21 19:00:51,181 INFO L899 garLoopResultBuilder]: For program point L307(lines 248 311) no Hoare annotation was computed. [2023-11-21 19:00:51,181 INFO L895 garLoopResultBuilder]: At program point L270(line 270) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2023-11-21 19:00:51,181 INFO L899 garLoopResultBuilder]: For program point L774(lines 774 781) no Hoare annotation was computed. [2023-11-21 19:00:51,181 INFO L899 garLoopResultBuilder]: For program point L774-2(lines 774 781) no Hoare annotation was computed. [2023-11-21 19:00:51,182 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 802 813) no Hoare annotation was computed. [2023-11-21 19:00:51,182 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 802 813) the Hoare annotation is: true [2023-11-21 19:00:51,182 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 199 207) no Hoare annotation was computed. [2023-11-21 19:00:51,182 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 199 207) the Hoare annotation is: true [2023-11-21 19:00:51,185 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-21 19:00:51,187 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 19:00:51,199 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 07:00:51 BoogieIcfgContainer [2023-11-21 19:00:51,199 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 19:00:51,200 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 19:00:51,200 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 19:00:51,200 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 19:00:51,200 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:00:49" (3/4) ... [2023-11-21 19:00:51,202 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-21 19:00:51,208 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2023-11-21 19:00:51,208 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2023-11-21 19:00:51,208 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2023-11-21 19:00:51,209 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2023-11-21 19:00:51,209 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2023-11-21 19:00:51,209 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2023-11-21 19:00:51,223 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 40 nodes and edges [2023-11-21 19:00:51,224 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-21 19:00:51,225 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-21 19:00:51,225 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-21 19:00:51,226 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-21 19:00:51,355 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b9c0370-c9d2-4533-b900-f2be6ae8a1fb/bin/utaipan-verify-QoSU8krkJ5/witness.graphml [2023-11-21 19:00:51,355 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b9c0370-c9d2-4533-b900-f2be6ae8a1fb/bin/utaipan-verify-QoSU8krkJ5/witness.yml [2023-11-21 19:00:51,356 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 19:00:51,356 INFO L158 Benchmark]: Toolchain (without parser) took 3017.02ms. Allocated memory was 174.1MB in the beginning and 209.7MB in the end (delta: 35.7MB). Free memory was 140.7MB in the beginning and 119.4MB in the end (delta: 21.3MB). Peak memory consumption was 55.8MB. Max. memory is 16.1GB. [2023-11-21 19:00:51,357 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 127.9MB. Free memory is still 94.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 19:00:51,357 INFO L158 Benchmark]: CACSL2BoogieTranslator took 674.43ms. Allocated memory is still 174.1MB. Free memory was 140.7MB in the beginning and 128.5MB in the end (delta: 12.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 19:00:51,358 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.97ms. Allocated memory is still 174.1MB. Free memory was 128.5MB in the beginning and 126.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 19:00:51,358 INFO L158 Benchmark]: Boogie Preprocessor took 37.81ms. Allocated memory is still 174.1MB. Free memory was 126.4MB in the beginning and 125.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 19:00:51,358 INFO L158 Benchmark]: RCFGBuilder took 574.16ms. Allocated memory is still 174.1MB. Free memory was 125.3MB in the beginning and 101.3MB in the end (delta: 24.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-21 19:00:51,359 INFO L158 Benchmark]: TraceAbstraction took 1510.20ms. Allocated memory was 174.1MB in the beginning and 209.7MB in the end (delta: 35.7MB). Free memory was 100.1MB in the beginning and 125.7MB in the end (delta: -25.6MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. [2023-11-21 19:00:51,360 INFO L158 Benchmark]: Witness Printer took 156.12ms. Allocated memory is still 209.7MB. Free memory was 125.7MB in the beginning and 119.4MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-21 19:00:51,363 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 127.9MB. Free memory is still 94.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 674.43ms. Allocated memory is still 174.1MB. Free memory was 140.7MB in the beginning and 128.5MB in the end (delta: 12.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.97ms. Allocated memory is still 174.1MB. Free memory was 128.5MB in the beginning and 126.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.81ms. Allocated memory is still 174.1MB. Free memory was 126.4MB in the beginning and 125.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 574.16ms. Allocated memory is still 174.1MB. Free memory was 125.3MB in the beginning and 101.3MB in the end (delta: 24.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1510.20ms. Allocated memory was 174.1MB in the beginning and 209.7MB in the end (delta: 35.7MB). Free memory was 100.1MB in the beginning and 125.7MB in the end (delta: -25.6MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. * Witness Printer took 156.12ms. Allocated memory is still 209.7MB. Free memory was 125.7MB in the beginning and 119.4MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [49] - GenericResultAtLocation [Line: 101]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [101] - GenericResultAtLocation [Line: 244]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [244] - GenericResultAtLocation [Line: 312]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [312] - GenericResultAtLocation [Line: 678]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [678] - GenericResultAtLocation [Line: 687]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [687] - GenericResultAtLocation [Line: 787]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [787] - GenericResultAtLocation [Line: 867]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [867] * 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: 683]: 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 7 procedures, 51 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 103 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 99 mSDsluCounter, 264 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 84 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 126 IncrementalHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 180 mSDtfsCounter, 126 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 18 LocationsWithAnnotation, 104 PreInvPairs, 109 NumberOfFragments, 106 HoareAnnotationTreeSize, 104 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 18 FomulaSimplificationsInter, 76 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 126 NumberOfCodeBlocks, 126 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 121 ConstructedInterpolants, 0 QuantifiedInterpolants, 217 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 10/10 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: 258]: Loop Invariant Derived loop invariant: (((pumpRunning == 0) && (1 == systemActive)) && (splverifierCounter == 0)) - InvariantResult [Line: 257]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 699]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-11-21 19:00:51,414 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b9c0370-c9d2-4533-b900-f2be6ae8a1fb/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE