./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product16.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 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_d136db86-bafa-4e62-aacc-b9c09ba5e44c/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d136db86-bafa-4e62-aacc-b9c09ba5e44c/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d136db86-bafa-4e62-aacc-b9c09ba5e44c/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d136db86-bafa-4e62-aacc-b9c09ba5e44c/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product16.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d136db86-bafa-4e62-aacc-b9c09ba5e44c/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d136db86-bafa-4e62-aacc-b9c09ba5e44c/bin/utaipan-verify-mE87zJ7Ire --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 2ec66100f9e2ac4db263cd9becb832e73074b4f7ebe73780c502623dad07d2b6 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:17:18,632 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:17:18,756 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d136db86-bafa-4e62-aacc-b9c09ba5e44c/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:17:18,766 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:17:18,767 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:17:18,806 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:17:18,807 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:17:18,807 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:17:18,810 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:17:18,812 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:17:18,812 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:17:18,814 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:17:18,814 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:17:18,817 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:17:18,818 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:17:18,818 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:17:18,820 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:17:18,824 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:17:18,825 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:17:18,825 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:17:18,826 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:17:18,826 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:17:18,827 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:17:18,828 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:17:18,829 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:17:18,829 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:17:18,830 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:17:18,830 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:17:18,831 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:17:18,831 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:17:18,832 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:17:18,833 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:17:18,833 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:17:18,834 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:17:18,834 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:17:18,834 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:17:18,835 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:17:18,836 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:17:18,836 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:17:18,836 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:17:18,837 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:17:18,837 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:17:18,837 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:17:18,838 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:17:18,838 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:17:18,838 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:17:18,839 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:17:18,839 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_d136db86-bafa-4e62-aacc-b9c09ba5e44c/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d136db86-bafa-4e62-aacc-b9c09ba5e44c/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2ec66100f9e2ac4db263cd9becb832e73074b4f7ebe73780c502623dad07d2b6 [2023-11-23 21:17:19,171 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:17:19,205 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:17:19,208 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:17:19,210 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:17:19,211 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:17:19,212 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d136db86-bafa-4e62-aacc-b9c09ba5e44c/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/product-lines/minepump_spec4_product16.cil.c [2023-11-23 21:17:22,501 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:17:22,766 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:17:22,767 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d136db86-bafa-4e62-aacc-b9c09ba5e44c/sv-benchmarks/c/product-lines/minepump_spec4_product16.cil.c [2023-11-23 21:17:22,782 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d136db86-bafa-4e62-aacc-b9c09ba5e44c/bin/utaipan-verify-mE87zJ7Ire/data/a97bb35ad/357a0dbd28fd4db096b503bf008994d5/FLAG3b849e685 [2023-11-23 21:17:22,796 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d136db86-bafa-4e62-aacc-b9c09ba5e44c/bin/utaipan-verify-mE87zJ7Ire/data/a97bb35ad/357a0dbd28fd4db096b503bf008994d5 [2023-11-23 21:17:22,799 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:17:22,801 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:17:22,803 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:17:22,803 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:17:22,809 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:17:22,810 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:17:22" (1/1) ... [2023-11-23 21:17:22,812 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71f3d4f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:22, skipping insertion in model container [2023-11-23 21:17:22,812 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:17:22" (1/1) ... [2023-11-23 21:17:22,883 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:17:23,147 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_d136db86-bafa-4e62-aacc-b9c09ba5e44c/sv-benchmarks/c/product-lines/minepump_spec4_product16.cil.c[14184,14197] [2023-11-23 21:17:23,191 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:17:23,212 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:17:23,224 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] [2023-11-23 21:17:23,226 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [87] [2023-11-23 21:17:23,226 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [453] [2023-11-23 21:17:23,227 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [539] [2023-11-23 21:17:23,227 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [638] [2023-11-23 21:17:23,227 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [647] [2023-11-23 21:17:23,227 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [826] [2023-11-23 21:17:23,228 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [852] [2023-11-23 21:17:23,306 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_d136db86-bafa-4e62-aacc-b9c09ba5e44c/sv-benchmarks/c/product-lines/minepump_spec4_product16.cil.c[14184,14197] [2023-11-23 21:17:23,315 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:17:23,336 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:17:23,337 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:23 WrapperNode [2023-11-23 21:17:23,337 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:17:23,338 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:17:23,338 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:17:23,339 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:17:23,346 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:23" (1/1) ... [2023-11-23 21:17:23,379 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:23" (1/1) ... [2023-11-23 21:17:23,406 INFO L138 Inliner]: procedures = 53, calls = 97, calls flagged for inlining = 21, calls inlined = 17, statements flattened = 166 [2023-11-23 21:17:23,407 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:17:23,408 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:17:23,408 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:17:23,408 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:17:23,419 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:23" (1/1) ... [2023-11-23 21:17:23,419 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:23" (1/1) ... [2023-11-23 21:17:23,421 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:23" (1/1) ... [2023-11-23 21:17:23,422 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:23" (1/1) ... [2023-11-23 21:17:23,428 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:23" (1/1) ... [2023-11-23 21:17:23,434 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:23" (1/1) ... [2023-11-23 21:17:23,436 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:23" (1/1) ... [2023-11-23 21:17:23,437 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:23" (1/1) ... [2023-11-23 21:17:23,440 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:17:23,441 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:17:23,442 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:17:23,442 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:17:23,443 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:23" (1/1) ... [2023-11-23 21:17:23,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:17:23,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d136db86-bafa-4e62-aacc-b9c09ba5e44c/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:17:23,477 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d136db86-bafa-4e62-aacc-b9c09ba5e44c/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:17:23,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d136db86-bafa-4e62-aacc-b9c09ba5e44c/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:17:23,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:17:23,527 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-23 21:17:23,527 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-23 21:17:23,527 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-23 21:17:23,528 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-23 21:17:23,528 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-23 21:17:23,528 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-23 21:17:23,529 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2023-11-23 21:17:23,529 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2023-11-23 21:17:23,529 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-11-23 21:17:23,530 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-11-23 21:17:23,530 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-11-23 21:17:23,530 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-11-23 21:17:23,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:17:23,530 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-23 21:17:23,530 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-23 21:17:23,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:17:23,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:17:23,675 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:17:23,679 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:17:24,061 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:17:24,229 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:17:24,229 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-23 21:17:24,231 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:17:24 BoogieIcfgContainer [2023-11-23 21:17:24,231 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:17:24,236 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:17:24,236 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:17:24,239 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:17:24,240 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:17:22" (1/3) ... [2023-11-23 21:17:24,241 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bd7137a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:17:24, skipping insertion in model container [2023-11-23 21:17:24,241 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:23" (2/3) ... [2023-11-23 21:17:24,243 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bd7137a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:17:24, skipping insertion in model container [2023-11-23 21:17:24,243 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:17:24" (3/3) ... [2023-11-23 21:17:24,244 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product16.cil.c [2023-11-23 21:17:24,267 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:17:24,267 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:17:24,337 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:17:24,344 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;@30b52aa8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:17:24,345 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:17:24,350 INFO L276 IsEmpty]: Start isEmpty. Operand has 56 states, 36 states have (on average 1.4444444444444444) internal successors, (52), 43 states have internal predecessors, (52), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-23 21:17:24,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-23 21:17:24,359 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:17:24,360 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:17:24,360 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:17:24,365 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:17:24,366 INFO L85 PathProgramCache]: Analyzing trace with hash 927517862, now seen corresponding path program 1 times [2023-11-23 21:17:24,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:17:24,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898450322] [2023-11-23 21:17:24,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:17:24,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:17:24,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:17:24,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:17:24,619 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:17:24,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898450322] [2023-11-23 21:17:24,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898450322] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:17:24,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:17:24,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:17:24,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469356177] [2023-11-23 21:17:24,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:17:24,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:17:24,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:17:24,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:17:24,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:17:24,688 INFO L87 Difference]: Start difference. First operand has 56 states, 36 states have (on average 1.4444444444444444) internal successors, (52), 43 states have internal predecessors, (52), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:17:24,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:17:24,784 INFO L93 Difference]: Finished difference Result 110 states and 149 transitions. [2023-11-23 21:17:24,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:17:24,787 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-23 21:17:24,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:17:24,797 INFO L225 Difference]: With dead ends: 110 [2023-11-23 21:17:24,798 INFO L226 Difference]: Without dead ends: 51 [2023-11-23 21:17:24,803 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 [2023-11-23 21:17:24,809 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:17:24,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 55 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:17:24,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-11-23 21:17:24,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2023-11-23 21:17:24,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 39 states have internal predecessors, (44), 11 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-23 21:17:24,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 65 transitions. [2023-11-23 21:17:24,872 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 65 transitions. Word has length 12 [2023-11-23 21:17:24,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:17:24,873 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 65 transitions. [2023-11-23 21:17:24,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:17:24,875 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 65 transitions. [2023-11-23 21:17:24,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-23 21:17:24,877 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:17:24,878 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:17:24,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:17:24,878 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:17:24,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:17:24,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1376274795, now seen corresponding path program 1 times [2023-11-23 21:17:24,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:17:24,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041025929] [2023-11-23 21:17:24,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:17:24,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:17:24,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:17:25,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:17:25,056 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:17:25,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041025929] [2023-11-23 21:17:25,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041025929] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:17:25,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:17:25,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:17:25,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005267962] [2023-11-23 21:17:25,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:17:25,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:17:25,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:17:25,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:17:25,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:17:25,065 INFO L87 Difference]: Start difference. First operand 51 states and 65 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:17:25,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:17:25,131 INFO L93 Difference]: Finished difference Result 74 states and 92 transitions. [2023-11-23 21:17:25,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:17:25,132 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-11-23 21:17:25,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:17:25,133 INFO L225 Difference]: With dead ends: 74 [2023-11-23 21:17:25,134 INFO L226 Difference]: Without dead ends: 43 [2023-11-23 21:17:25,139 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 [2023-11-23 21:17:25,142 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 14 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:17:25,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 66 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:17:25,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2023-11-23 21:17:25,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2023-11-23 21:17:25,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 34 states have internal predecessors, (38), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-23 21:17:25,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 54 transitions. [2023-11-23 21:17:25,168 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 54 transitions. Word has length 13 [2023-11-23 21:17:25,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:17:25,168 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 54 transitions. [2023-11-23 21:17:25,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:17:25,169 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 54 transitions. [2023-11-23 21:17:25,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-23 21:17:25,172 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:17:25,172 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:17:25,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:17:25,172 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:17:25,178 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:17:25,178 INFO L85 PathProgramCache]: Analyzing trace with hash 689851195, now seen corresponding path program 1 times [2023-11-23 21:17:25,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:17:25,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884258066] [2023-11-23 21:17:25,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:17:25,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:17:25,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:17:25,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:17:25,306 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:17:25,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884258066] [2023-11-23 21:17:25,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884258066] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:17:25,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:17:25,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:17:25,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823802108] [2023-11-23 21:17:25,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:17:25,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:17:25,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:17:25,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:17:25,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:17:25,309 INFO L87 Difference]: Start difference. First operand 43 states and 54 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, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:17:25,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:17:25,409 INFO L93 Difference]: Finished difference Result 125 states and 159 transitions. [2023-11-23 21:17:25,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:17:25,410 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, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-11-23 21:17:25,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:17:25,414 INFO L225 Difference]: With dead ends: 125 [2023-11-23 21:17:25,414 INFO L226 Difference]: Without dead ends: 84 [2023-11-23 21:17:25,418 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 [2023-11-23 21:17:25,421 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 48 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:17:25,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 85 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:17:25,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-11-23 21:17:25,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 81. [2023-11-23 21:17:25,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 52 states have (on average 1.3653846153846154) internal successors, (71), 63 states have internal predecessors, (71), 16 states have call successors, (16), 12 states have call predecessors, (16), 12 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-23 21:17:25,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 103 transitions. [2023-11-23 21:17:25,451 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 103 transitions. Word has length 16 [2023-11-23 21:17:25,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:17:25,452 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 103 transitions. [2023-11-23 21:17:25,452 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, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:17:25,453 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 103 transitions. [2023-11-23 21:17:25,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-23 21:17:25,455 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:17:25,456 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:17:25,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:17:25,456 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:17:25,457 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:17:25,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1457257187, now seen corresponding path program 1 times [2023-11-23 21:17:25,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:17:25,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178299097] [2023-11-23 21:17:25,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:17:25,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:17:25,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:17:25,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:17:25,659 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:17:25,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178299097] [2023-11-23 21:17:25,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178299097] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:17:25,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:17:25,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:17:25,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133623414] [2023-11-23 21:17:25,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:17:25,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:17:25,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:17:25,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:17:25,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:17:25,663 INFO L87 Difference]: Start difference. First operand 81 states and 103 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:17:25,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:17:25,767 INFO L93 Difference]: Finished difference Result 213 states and 276 transitions. [2023-11-23 21:17:25,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:17:25,768 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2023-11-23 21:17:25,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:17:25,800 INFO L225 Difference]: With dead ends: 213 [2023-11-23 21:17:25,801 INFO L226 Difference]: Without dead ends: 134 [2023-11-23 21:17:25,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:17:25,803 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 32 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:17:25,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 117 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:17:25,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2023-11-23 21:17:25,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 129. [2023-11-23 21:17:25,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 88 states have (on average 1.3181818181818181) internal successors, (116), 101 states have internal predecessors, (116), 22 states have call successors, (22), 18 states have call predecessors, (22), 18 states have return successors, (22), 17 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-23 21:17:25,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 160 transitions. [2023-11-23 21:17:25,845 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 160 transitions. Word has length 19 [2023-11-23 21:17:25,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:17:25,845 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 160 transitions. [2023-11-23 21:17:25,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:17:25,846 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 160 transitions. [2023-11-23 21:17:25,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-23 21:17:25,848 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:17:25,880 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:17:25,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 21:17:25,881 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:17:25,881 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:17:25,882 INFO L85 PathProgramCache]: Analyzing trace with hash -2032349906, now seen corresponding path program 1 times [2023-11-23 21:17:25,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:17:25,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610170325] [2023-11-23 21:17:25,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:17:25,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:17:25,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:17:26,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:17:26,231 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:17:26,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610170325] [2023-11-23 21:17:26,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610170325] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:17:26,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:17:26,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 21:17:26,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148760525] [2023-11-23 21:17:26,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:17:26,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 21:17:26,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:17:26,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 21:17:26,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:17:26,234 INFO L87 Difference]: Start difference. First operand 129 states and 160 transitions. Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 21:17:26,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:17:26,455 INFO L93 Difference]: Finished difference Result 269 states and 341 transitions. [2023-11-23 21:17:26,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 21:17:26,456 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2023-11-23 21:17:26,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:17:26,459 INFO L225 Difference]: With dead ends: 269 [2023-11-23 21:17:26,459 INFO L226 Difference]: Without dead ends: 190 [2023-11-23 21:17:26,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=64, Unknown=0, NotChecked=0, Total=110 [2023-11-23 21:17:26,464 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 93 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:17:26,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 158 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:17:26,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2023-11-23 21:17:26,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 183. [2023-11-23 21:17:26,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 126 states have (on average 1.2936507936507937) internal successors, (163), 143 states have internal predecessors, (163), 30 states have call successors, (30), 26 states have call predecessors, (30), 26 states have return successors, (30), 25 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-23 21:17:26,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 223 transitions. [2023-11-23 21:17:26,521 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 223 transitions. Word has length 22 [2023-11-23 21:17:26,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:17:26,522 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 223 transitions. [2023-11-23 21:17:26,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 21:17:26,523 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 223 transitions. [2023-11-23 21:17:26,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-23 21:17:26,534 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:17:26,535 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-23 21:17:26,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 21:17:26,535 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:17:26,536 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:17:26,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1023405606, now seen corresponding path program 1 times [2023-11-23 21:17:26,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:17:26,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138391872] [2023-11-23 21:17:26,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:17:26,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:17:26,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:17:27,237 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:17:27,237 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:17:27,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138391872] [2023-11-23 21:17:27,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138391872] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:17:27,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1013175612] [2023-11-23 21:17:27,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:17:27,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:17:27,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d136db86-bafa-4e62-aacc-b9c09ba5e44c/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:17:27,248 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d136db86-bafa-4e62-aacc-b9c09ba5e44c/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:17:27,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d136db86-bafa-4e62-aacc-b9c09ba5e44c/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:17:27,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:17:27,375 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-23 21:17:27,382 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:17:27,523 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 21:17:27,523 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:17:27,666 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 21:17:27,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1013175612] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-23 21:17:27,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-23 21:17:27,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [14, 4] total 19 [2023-11-23 21:17:27,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836544564] [2023-11-23 21:17:27,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:17:27,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:17:27,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:17:27,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:17:27,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2023-11-23 21:17:27,669 INFO L87 Difference]: Start difference. First operand 183 states and 223 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 21:17:27,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:17:27,725 INFO L93 Difference]: Finished difference Result 242 states and 301 transitions. [2023-11-23 21:17:27,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:17:27,726 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 40 [2023-11-23 21:17:27,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:17:27,727 INFO L225 Difference]: With dead ends: 242 [2023-11-23 21:17:27,727 INFO L226 Difference]: Without dead ends: 0 [2023-11-23 21:17:27,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=308, Unknown=0, NotChecked=0, Total=380 [2023-11-23 21:17:27,729 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 30 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:17:27,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 46 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:17:27,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-23 21:17:27,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-23 21:17:27,731 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) [2023-11-23 21:17:27,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-23 21:17:27,731 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 40 [2023-11-23 21:17:27,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:17:27,731 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 21:17:27,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 21:17:27,732 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-23 21:17:27,732 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 21:17:27,735 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:17:27,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d136db86-bafa-4e62-aacc-b9c09ba5e44c/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:17:27,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d136db86-bafa-4e62-aacc-b9c09ba5e44c/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:17:27,958 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-23 21:17:28,290 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 739 746) no Hoare annotation was computed. [2023-11-23 21:17:28,291 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 739 746) the Hoare annotation is: true [2023-11-23 21:17:28,291 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 486 497) the Hoare annotation is: true [2023-11-23 21:17:28,291 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 486 497) no Hoare annotation was computed. [2023-11-23 21:17:28,291 INFO L899 garLoopResultBuilder]: For program point L643(line 643) no Hoare annotation was computed. [2023-11-23 21:17:28,292 INFO L899 garLoopResultBuilder]: For program point L668-1(lines 668 674) no Hoare annotation was computed. [2023-11-23 21:17:28,292 INFO L899 garLoopResultBuilder]: For program point L697(lines 697 705) no Hoare annotation was computed. [2023-11-23 21:17:28,292 INFO L899 garLoopResultBuilder]: For program point L693(lines 693 710) no Hoare annotation was computed. [2023-11-23 21:17:28,292 INFO L899 garLoopResultBuilder]: For program point L661-1(lines 660 679) no Hoare annotation was computed. [2023-11-23 21:17:28,292 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 657 680) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (or (= |old(~waterLevel~0)| ~waterLevel~0) (= ~waterLevel~0 1)))) [2023-11-23 21:17:28,293 INFO L899 garLoopResultBuilder]: For program point L839(lines 839 845) no Hoare annotation was computed. [2023-11-23 21:17:28,293 INFO L899 garLoopResultBuilder]: For program point L835(lines 835 848) no Hoare annotation was computed. [2023-11-23 21:17:28,293 INFO L899 garLoopResultBuilder]: For program point L835-1(lines 827 851) no Hoare annotation was computed. [2023-11-23 21:17:28,293 INFO L895 garLoopResultBuilder]: At program point L703(line 703) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2023-11-23 21:17:28,293 INFO L895 garLoopResultBuilder]: At program point L699(line 699) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2023-11-23 21:17:28,294 INFO L895 garLoopResultBuilder]: At program point L695(line 695) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2023-11-23 21:17:28,294 INFO L899 garLoopResultBuilder]: For program point L695-1(line 695) no Hoare annotation was computed. [2023-11-23 21:17:28,294 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 657 680) no Hoare annotation was computed. [2023-11-23 21:17:28,294 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 643) no Hoare annotation was computed. [2023-11-23 21:17:28,294 INFO L895 garLoopResultBuilder]: At program point L708(line 708) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (= ~pumpRunning~0 0)) (or .cse0 (= |old(~waterLevel~0)| ~waterLevel~0) (= ~waterLevel~0 1) (= |old(~waterLevel~0)| 0)))) [2023-11-23 21:17:28,295 INFO L899 garLoopResultBuilder]: For program point L708-1(lines 689 713) no Hoare annotation was computed. [2023-11-23 21:17:28,295 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 542 571) no Hoare annotation was computed. [2023-11-23 21:17:28,295 INFO L899 garLoopResultBuilder]: For program point L567(lines 542 571) no Hoare annotation was computed. [2023-11-23 21:17:28,295 INFO L899 garLoopResultBuilder]: For program point L563(line 563) no Hoare annotation was computed. [2023-11-23 21:17:28,295 INFO L899 garLoopResultBuilder]: For program point L556(lines 556 560) no Hoare annotation was computed. [2023-11-23 21:17:28,295 INFO L902 garLoopResultBuilder]: At program point L556-1(lines 556 560) the Hoare annotation is: true [2023-11-23 21:17:28,296 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 542 571) the Hoare annotation is: true [2023-11-23 21:17:28,296 INFO L902 garLoopResultBuilder]: At program point L552-2(lines 552 566) the Hoare annotation is: true [2023-11-23 21:17:28,296 INFO L902 garLoopResultBuilder]: At program point L548(line 548) the Hoare annotation is: true [2023-11-23 21:17:28,296 INFO L899 garLoopResultBuilder]: For program point L548-1(line 548) no Hoare annotation was computed. [2023-11-23 21:17:28,296 INFO L899 garLoopResultBuilder]: For program point L916(lines 853 920) no Hoare annotation was computed. [2023-11-23 21:17:28,296 INFO L899 garLoopResultBuilder]: For program point L883(lines 883 889) no Hoare annotation was computed. [2023-11-23 21:17:28,297 INFO L899 garLoopResultBuilder]: For program point L883-1(lines 883 889) no Hoare annotation was computed. [2023-11-23 21:17:28,297 INFO L895 garLoopResultBuilder]: At program point L875(line 875) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2023-11-23 21:17:28,297 INFO L895 garLoopResultBuilder]: At program point L809(line 809) the Hoare annotation is: false [2023-11-23 21:17:28,297 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-23 21:17:28,297 INFO L895 garLoopResultBuilder]: At program point L913(lines 862 914) the Hoare annotation is: false [2023-11-23 21:17:28,298 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-23 21:17:28,298 INFO L899 garLoopResultBuilder]: For program point L901(lines 901 907) no Hoare annotation was computed. [2023-11-23 21:17:28,298 INFO L895 garLoopResultBuilder]: At program point L901-2(lines 893 908) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2023-11-23 21:17:28,298 INFO L899 garLoopResultBuilder]: For program point L864(lines 863 912) no Hoare annotation was computed. [2023-11-23 21:17:28,298 INFO L899 garLoopResultBuilder]: For program point L893(lines 893 908) no Hoare annotation was computed. [2023-11-23 21:17:28,298 INFO L895 garLoopResultBuilder]: At program point L885(line 885) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2023-11-23 21:17:28,299 INFO L899 garLoopResultBuilder]: For program point L625(lines 625 632) no Hoare annotation was computed. [2023-11-23 21:17:28,299 INFO L899 garLoopResultBuilder]: For program point L625-2(lines 625 632) no Hoare annotation was computed. [2023-11-23 21:17:28,299 INFO L895 garLoopResultBuilder]: At program point L910(lines 863 912) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2023-11-23 21:17:28,299 INFO L899 garLoopResultBuilder]: For program point L873(lines 873 879) no Hoare annotation was computed. [2023-11-23 21:17:28,299 INFO L899 garLoopResultBuilder]: For program point L873-1(lines 873 879) no Hoare annotation was computed. [2023-11-23 21:17:28,300 INFO L899 garLoopResultBuilder]: For program point L807(lines 807 813) no Hoare annotation was computed. [2023-11-23 21:17:28,300 INFO L899 garLoopResultBuilder]: For program point L807-1(lines 807 813) no Hoare annotation was computed. [2023-11-23 21:17:28,300 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 474 485) no Hoare annotation was computed. [2023-11-23 21:17:28,300 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 474 485) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (= |old(~waterLevel~0)| ~waterLevel~0) (= ~waterLevel~0 1)) [2023-11-23 21:17:28,300 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 681 687) no Hoare annotation was computed. [2023-11-23 21:17:28,300 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryFINAL(lines 681 687) the Hoare annotation is: true [2023-11-23 21:17:28,301 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 747 757) no Hoare annotation was computed. [2023-11-23 21:17:28,301 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 747 757) the Hoare annotation is: true [2023-11-23 21:17:28,303 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-11-23 21:17:28,306 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:17:28,318 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:17:28 BoogieIcfgContainer [2023-11-23 21:17:28,318 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:17:28,319 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:17:28,319 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:17:28,319 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:17:28,320 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:17:24" (3/4) ... [2023-11-23 21:17:28,322 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 21:17:28,326 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2023-11-23 21:17:28,326 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2023-11-23 21:17:28,326 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2023-11-23 21:17:28,326 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2023-11-23 21:17:28,327 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2023-11-23 21:17:28,327 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2023-11-23 21:17:28,327 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2023-11-23 21:17:28,335 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 37 nodes and edges [2023-11-23 21:17:28,335 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-23 21:17:28,336 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-23 21:17:28,337 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 21:17:28,337 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 21:17:28,368 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!((\old(pumpRunning) == 0)) || ((pumpRunning == 0) && ((\old(waterLevel) == waterLevel) || (waterLevel == 1)))) [2023-11-23 21:17:28,396 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!((\old(pumpRunning) == 0)) || ((pumpRunning == 0) && ((\old(waterLevel) == waterLevel) || (waterLevel == 1)))) [2023-11-23 21:17:28,451 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d136db86-bafa-4e62-aacc-b9c09ba5e44c/bin/utaipan-verify-mE87zJ7Ire/witness.graphml [2023-11-23 21:17:28,451 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d136db86-bafa-4e62-aacc-b9c09ba5e44c/bin/utaipan-verify-mE87zJ7Ire/witness.yml [2023-11-23 21:17:28,452 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:17:28,452 INFO L158 Benchmark]: Toolchain (without parser) took 5651.57ms. Allocated memory was 136.3MB in the beginning and 190.8MB in the end (delta: 54.5MB). Free memory was 89.3MB in the beginning and 61.2MB in the end (delta: 28.0MB). Peak memory consumption was 85.0MB. Max. memory is 16.1GB. [2023-11-23 21:17:28,453 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 136.3MB. Free memory is still 83.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:17:28,453 INFO L158 Benchmark]: CACSL2BoogieTranslator took 534.79ms. Allocated memory is still 136.3MB. Free memory was 88.8MB in the beginning and 70.0MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-23 21:17:28,454 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.87ms. Allocated memory is still 136.3MB. Free memory was 70.0MB in the beginning and 67.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:17:28,454 INFO L158 Benchmark]: Boogie Preprocessor took 32.94ms. Allocated memory is still 136.3MB. Free memory was 67.9MB in the beginning and 66.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:17:28,455 INFO L158 Benchmark]: RCFGBuilder took 789.77ms. Allocated memory was 136.3MB in the beginning and 190.8MB in the end (delta: 54.5MB). Free memory was 66.2MB in the beginning and 158.0MB in the end (delta: -91.7MB). Peak memory consumption was 29.2MB. Max. memory is 16.1GB. [2023-11-23 21:17:28,455 INFO L158 Benchmark]: TraceAbstraction took 4082.84ms. Allocated memory is still 190.8MB. Free memory was 156.9MB in the beginning and 67.5MB in the end (delta: 89.4MB). Peak memory consumption was 89.3MB. Max. memory is 16.1GB. [2023-11-23 21:17:28,455 INFO L158 Benchmark]: Witness Printer took 132.88ms. Allocated memory is still 190.8MB. Free memory was 67.5MB in the beginning and 61.2MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-23 21:17:28,457 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 136.3MB. Free memory is still 83.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 534.79ms. Allocated memory is still 136.3MB. Free memory was 88.8MB in the beginning and 70.0MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.87ms. Allocated memory is still 136.3MB. Free memory was 70.0MB in the beginning and 67.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.94ms. Allocated memory is still 136.3MB. Free memory was 67.9MB in the beginning and 66.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 789.77ms. Allocated memory was 136.3MB in the beginning and 190.8MB in the end (delta: 54.5MB). Free memory was 66.2MB in the beginning and 158.0MB in the end (delta: -91.7MB). Peak memory consumption was 29.2MB. Max. memory is 16.1GB. * TraceAbstraction took 4082.84ms. Allocated memory is still 190.8MB. Free memory was 156.9MB in the beginning and 67.5MB in the end (delta: 89.4MB). Peak memory consumption was 89.3MB. Max. memory is 16.1GB. * Witness Printer took 132.88ms. Allocated memory is still 190.8MB. Free memory was 67.5MB in the beginning and 61.2MB 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,"featureselect.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [87] - GenericResultAtLocation [Line: 453]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [453] - GenericResultAtLocation [Line: 539]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [539] - GenericResultAtLocation [Line: 638]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [638] - GenericResultAtLocation [Line: 647]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [647] - GenericResultAtLocation [Line: 826]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [826] - GenericResultAtLocation [Line: 852]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [852] * 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: 643]: 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, 56 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.0s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 222 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 217 mSDsluCounter, 527 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 287 mSDsCounter, 55 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 246 IncrementalHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 55 mSolverCounterUnsat, 240 mSDtfsCounter, 246 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 120 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=183occurred in iteration=5, InterpolantAutomatonStates: 26, 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, 6 MinimizatonAttempts, 15 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 20 LocationsWithAnnotation, 180 PreInvPairs, 202 NumberOfFragments, 100 HoareAnnotationTreeSize, 180 FomulaSimplifications, 119 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 20 FomulaSimplificationsInter, 939 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 162 NumberOfCodeBlocks, 162 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 194 ConstructedInterpolants, 0 QuantifiedInterpolants, 831 SizeOfPredicates, 3 NumberOfNonLiveVariables, 192 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 29/48 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: 862]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 747]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 863]: Loop Invariant Derived loop invariant: ((pumpRunning == 0) && (splverifierCounter == 0)) - InvariantResult [Line: 657]: Loop Invariant Derived loop invariant: (!((\old(pumpRunning) == 0)) || ((pumpRunning == 0) && ((\old(waterLevel) == waterLevel) || (waterLevel == 1)))) - InvariantResult [Line: 552]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-11-23 21:17:28,495 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d136db86-bafa-4e62-aacc-b9c09ba5e44c/bin/utaipan-verify-mE87zJ7Ire/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