./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product47.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e4baf7-7fae-40e5-b99f-980268c36ba8/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e4baf7-7fae-40e5-b99f-980268c36ba8/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e4baf7-7fae-40e5-b99f-980268c36ba8/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e4baf7-7fae-40e5-b99f-980268c36ba8/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product47.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e4baf7-7fae-40e5-b99f-980268c36ba8/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e4baf7-7fae-40e5-b99f-980268c36ba8/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 303db4082dd8b7a60cb4b5043655f09159321046818373497160cd54b8948d04 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 19:12:13,136 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 19:12:13,202 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e4baf7-7fae-40e5-b99f-980268c36ba8/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 19:12:13,207 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 19:12:13,207 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 19:12:13,231 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 19:12:13,232 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 19:12:13,232 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 19:12:13,233 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 19:12:13,233 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 19:12:13,234 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 19:12:13,234 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 19:12:13,235 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 19:12:13,235 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 19:12:13,236 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 19:12:13,236 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 19:12:13,237 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 19:12:13,237 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 19:12:13,238 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 19:12:13,238 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 19:12:13,239 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 19:12:13,240 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 19:12:13,240 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 19:12:13,241 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 19:12:13,241 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 19:12:13,242 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 19:12:13,242 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 19:12:13,243 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 19:12:13,243 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 19:12:13,244 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 19:12:13,244 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 19:12:13,244 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 19:12:13,244 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 19:12:13,245 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 19:12:13,245 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 19:12:13,245 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 19:12:13,245 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 19:12:13,246 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:12:13,246 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 19:12:13,246 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 19:12:13,246 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 19:12:13,247 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 19:12:13,247 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 19:12:13,247 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 19:12:13,247 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 19:12:13,247 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 19:12:13,248 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 19:12:13,248 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_46e4baf7-7fae-40e5-b99f-980268c36ba8/bin/utaipan-verify-nQ1chXbOIh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e4baf7-7fae-40e5-b99f-980268c36ba8/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 303db4082dd8b7a60cb4b5043655f09159321046818373497160cd54b8948d04 [2023-12-02 19:12:13,469 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 19:12:13,489 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 19:12:13,492 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 19:12:13,493 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 19:12:13,493 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 19:12:13,495 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e4baf7-7fae-40e5-b99f-980268c36ba8/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/product-lines/minepump_spec5_product47.cil.c [2023-12-02 19:12:16,233 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 19:12:16,460 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 19:12:16,460 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e4baf7-7fae-40e5-b99f-980268c36ba8/sv-benchmarks/c/product-lines/minepump_spec5_product47.cil.c [2023-12-02 19:12:16,473 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e4baf7-7fae-40e5-b99f-980268c36ba8/bin/utaipan-verify-nQ1chXbOIh/data/a3fb60ec8/f7ceb6b9925e421582e5c79f25a76a9e/FLAGf212e5dd4 [2023-12-02 19:12:16,486 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e4baf7-7fae-40e5-b99f-980268c36ba8/bin/utaipan-verify-nQ1chXbOIh/data/a3fb60ec8/f7ceb6b9925e421582e5c79f25a76a9e [2023-12-02 19:12:16,488 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 19:12:16,489 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 19:12:16,490 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 19:12:16,490 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 19:12:16,494 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 19:12:16,495 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:12:16" (1/1) ... [2023-12-02 19:12:16,496 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a83994c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:12:16, skipping insertion in model container [2023-12-02 19:12:16,496 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:12:16" (1/1) ... [2023-12-02 19:12:16,540 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 19:12:16,676 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_46e4baf7-7fae-40e5-b99f-980268c36ba8/sv-benchmarks/c/product-lines/minepump_spec5_product47.cil.c[1605,1618] [2023-12-02 19:12:16,781 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:12:16,790 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 19:12:16,798 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] [2023-12-02 19:12:16,799 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [58] [2023-12-02 19:12:16,799 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [283] [2023-12-02 19:12:16,800 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [353] [2023-12-02 19:12:16,800 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [454] [2023-12-02 19:12:16,800 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [820] [2023-12-02 19:12:16,800 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [855] [2023-12-02 19:12:16,800 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [905] [2023-12-02 19:12:16,804 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_46e4baf7-7fae-40e5-b99f-980268c36ba8/sv-benchmarks/c/product-lines/minepump_spec5_product47.cil.c[1605,1618] [2023-12-02 19:12:16,854 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:12:16,870 INFO L206 MainTranslator]: Completed translation [2023-12-02 19:12:16,870 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:12:16 WrapperNode [2023-12-02 19:12:16,871 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 19:12:16,871 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 19:12:16,872 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 19:12:16,872 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 19:12:16,877 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:12:16" (1/1) ... [2023-12-02 19:12:16,890 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:12:16" (1/1) ... [2023-12-02 19:12:16,916 INFO L138 Inliner]: procedures = 57, calls = 104, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 214 [2023-12-02 19:12:16,916 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 19:12:16,917 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 19:12:16,917 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 19:12:16,917 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 19:12:16,925 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:12:16" (1/1) ... [2023-12-02 19:12:16,925 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:12:16" (1/1) ... [2023-12-02 19:12:16,928 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:12:16" (1/1) ... [2023-12-02 19:12:16,928 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:12:16" (1/1) ... [2023-12-02 19:12:16,934 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:12:16" (1/1) ... [2023-12-02 19:12:16,939 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:12:16" (1/1) ... [2023-12-02 19:12:16,941 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:12:16" (1/1) ... [2023-12-02 19:12:16,942 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:12:16" (1/1) ... [2023-12-02 19:12:16,946 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 19:12:16,947 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 19:12:16,947 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 19:12:16,947 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 19:12:16,948 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:12:16" (1/1) ... [2023-12-02 19:12:16,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:12:16,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e4baf7-7fae-40e5-b99f-980268c36ba8/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:12:16,976 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e4baf7-7fae-40e5-b99f-980268c36ba8/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 19:12:16,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e4baf7-7fae-40e5-b99f-980268c36ba8/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 19:12:17,014 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 19:12:17,015 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-12-02 19:12:17,015 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-12-02 19:12:17,015 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-02 19:12:17,015 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-02 19:12:17,015 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-02 19:12:17,015 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-02 19:12:17,016 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-12-02 19:12:17,016 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-12-02 19:12:17,016 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2023-12-02 19:12:17,016 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2023-12-02 19:12:17,016 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-12-02 19:12:17,016 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-12-02 19:12:17,017 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-12-02 19:12:17,017 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-12-02 19:12:17,017 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-12-02 19:12:17,017 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-12-02 19:12:17,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 19:12:17,017 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-12-02 19:12:17,018 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-12-02 19:12:17,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 19:12:17,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 19:12:17,086 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 19:12:17,088 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 19:12:17,305 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 19:12:17,400 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 19:12:17,401 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-02 19:12:17,402 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:12:17 BoogieIcfgContainer [2023-12-02 19:12:17,402 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 19:12:17,405 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 19:12:17,406 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 19:12:17,409 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 19:12:17,409 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:12:16" (1/3) ... [2023-12-02 19:12:17,410 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14dd109d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:12:17, skipping insertion in model container [2023-12-02 19:12:17,410 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:12:16" (2/3) ... [2023-12-02 19:12:17,410 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14dd109d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:12:17, skipping insertion in model container [2023-12-02 19:12:17,410 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:12:17" (3/3) ... [2023-12-02 19:12:17,412 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product47.cil.c [2023-12-02 19:12:17,431 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 19:12:17,431 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 19:12:17,482 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 19:12:17,489 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;@71d32fed, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 19:12:17,489 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 19:12:17,493 INFO L276 IsEmpty]: Start isEmpty. Operand has 72 states, 45 states have (on average 1.4222222222222223) internal successors, (64), 54 states have internal predecessors, (64), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-02 19:12:17,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-02 19:12:17,501 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:12:17,501 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:12:17,502 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:12:17,505 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:12:17,506 INFO L85 PathProgramCache]: Analyzing trace with hash -798935313, now seen corresponding path program 1 times [2023-12-02 19:12:17,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:12:17,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628711198] [2023-12-02 19:12:17,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:12:17,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:12:17,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:12:17,711 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 19:12:17,712 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:12:17,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628711198] [2023-12-02 19:12:17,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628711198] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:12:17,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:12:17,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 19:12:17,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138908222] [2023-12-02 19:12:17,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:12:17,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 19:12:17,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:12:17,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 19:12:17,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 19:12:17,750 INFO L87 Difference]: Start difference. First operand has 72 states, 45 states have (on average 1.4222222222222223) internal successors, (64), 54 states have internal predecessors, (64), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 19:12:17,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:12:17,809 INFO L93 Difference]: Finished difference Result 142 states and 193 transitions. [2023-12-02 19:12:17,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 19:12:17,812 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2023-12-02 19:12:17,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:12:17,821 INFO L225 Difference]: With dead ends: 142 [2023-12-02 19:12:17,821 INFO L226 Difference]: Without dead ends: 67 [2023-12-02 19:12:17,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 19:12:17,829 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 19:12:17,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 76 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 19:12:17,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2023-12-02 19:12:17,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2023-12-02 19:12:17,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 42 states have (on average 1.3333333333333333) internal successors, (56), 50 states have internal predecessors, (56), 16 states have call successors, (16), 9 states have call predecessors, (16), 8 states have return successors, (15), 12 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-02 19:12:17,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 87 transitions. [2023-12-02 19:12:17,871 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 87 transitions. Word has length 21 [2023-12-02 19:12:17,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:12:17,872 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 87 transitions. [2023-12-02 19:12:17,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 19:12:17,872 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 87 transitions. [2023-12-02 19:12:17,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-02 19:12:17,875 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:12:17,875 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:12:17,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 19:12:17,875 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:12:17,876 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:12:17,876 INFO L85 PathProgramCache]: Analyzing trace with hash 631438556, now seen corresponding path program 1 times [2023-12-02 19:12:17,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:12:17,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951998635] [2023-12-02 19:12:17,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:12:17,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:12:17,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:12:17,967 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 19:12:17,967 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:12:17,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951998635] [2023-12-02 19:12:17,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951998635] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:12:17,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:12:17,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 19:12:17,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537990173] [2023-12-02 19:12:17,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:12:17,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:12:17,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:12:17,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:12:17,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:12:17,972 INFO L87 Difference]: Start difference. First operand 67 states and 87 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 19:12:18,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:12:18,011 INFO L93 Difference]: Finished difference Result 106 states and 136 transitions. [2023-12-02 19:12:18,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:12:18,012 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2023-12-02 19:12:18,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:12:18,014 INFO L225 Difference]: With dead ends: 106 [2023-12-02 19:12:18,014 INFO L226 Difference]: Without dead ends: 59 [2023-12-02 19:12:18,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:12:18,016 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 14 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 19:12:18,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 107 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 19:12:18,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2023-12-02 19:12:18,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2023-12-02 19:12:18,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 37 states have (on average 1.3513513513513513) internal successors, (50), 45 states have internal predecessors, (50), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-02 19:12:18,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 76 transitions. [2023-12-02 19:12:18,027 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 76 transitions. Word has length 22 [2023-12-02 19:12:18,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:12:18,028 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 76 transitions. [2023-12-02 19:12:18,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 19:12:18,028 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 76 transitions. [2023-12-02 19:12:18,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-12-02 19:12:18,030 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:12:18,030 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:12:18,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 19:12:18,030 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:12:18,031 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:12:18,031 INFO L85 PathProgramCache]: Analyzing trace with hash 837058471, now seen corresponding path program 1 times [2023-12-02 19:12:18,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:12:18,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128290183] [2023-12-02 19:12:18,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:12:18,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:12:18,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:12:18,149 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 19:12:18,150 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:12:18,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128290183] [2023-12-02 19:12:18,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128290183] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:12:18,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:12:18,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:12:18,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180717022] [2023-12-02 19:12:18,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:12:18,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:12:18,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:12:18,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:12:18,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:12:18,153 INFO L87 Difference]: Start difference. First operand 59 states and 76 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 19:12:18,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:12:18,289 INFO L93 Difference]: Finished difference Result 166 states and 221 transitions. [2023-12-02 19:12:18,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:12:18,290 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2023-12-02 19:12:18,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:12:18,291 INFO L225 Difference]: With dead ends: 166 [2023-12-02 19:12:18,292 INFO L226 Difference]: Without dead ends: 109 [2023-12-02 19:12:18,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:12:18,294 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 87 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 19:12:18,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 163 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 19:12:18,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2023-12-02 19:12:18,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 92. [2023-12-02 19:12:18,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 59 states have (on average 1.3559322033898304) internal successors, (80), 70 states have internal predecessors, (80), 19 states have call successors, (19), 13 states have call predecessors, (19), 13 states have return successors, (20), 15 states have call predecessors, (20), 19 states have call successors, (20) [2023-12-02 19:12:18,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 119 transitions. [2023-12-02 19:12:18,313 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 119 transitions. Word has length 25 [2023-12-02 19:12:18,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:12:18,314 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 119 transitions. [2023-12-02 19:12:18,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 19:12:18,314 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 119 transitions. [2023-12-02 19:12:18,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-02 19:12:18,316 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:12:18,316 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:12:18,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 19:12:18,316 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:12:18,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:12:18,317 INFO L85 PathProgramCache]: Analyzing trace with hash -14586727, now seen corresponding path program 1 times [2023-12-02 19:12:18,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:12:18,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726325379] [2023-12-02 19:12:18,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:12:18,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:12:18,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:12:18,433 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 19:12:18,434 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:12:18,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726325379] [2023-12-02 19:12:18,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726325379] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:12:18,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:12:18,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 19:12:18,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267286577] [2023-12-02 19:12:18,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:12:18,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 19:12:18,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:12:18,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 19:12:18,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-02 19:12:18,437 INFO L87 Difference]: Start difference. First operand 92 states and 119 transitions. Second operand has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 19:12:18,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:12:18,604 INFO L93 Difference]: Finished difference Result 220 states and 290 transitions. [2023-12-02 19:12:18,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 19:12:18,605 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2023-12-02 19:12:18,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:12:18,607 INFO L225 Difference]: With dead ends: 220 [2023-12-02 19:12:18,607 INFO L226 Difference]: Without dead ends: 130 [2023-12-02 19:12:18,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-02 19:12:18,610 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 38 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 19:12:18,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 264 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 19:12:18,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2023-12-02 19:12:18,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 126. [2023-12-02 19:12:18,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 83 states have (on average 1.2771084337349397) internal successors, (106), 93 states have internal predecessors, (106), 23 states have call successors, (23), 19 states have call predecessors, (23), 19 states have return successors, (29), 22 states have call predecessors, (29), 23 states have call successors, (29) [2023-12-02 19:12:18,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 158 transitions. [2023-12-02 19:12:18,633 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 158 transitions. Word has length 28 [2023-12-02 19:12:18,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:12:18,633 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 158 transitions. [2023-12-02 19:12:18,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 19:12:18,634 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 158 transitions. [2023-12-02 19:12:18,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-12-02 19:12:18,635 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:12:18,636 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:12:18,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 19:12:18,636 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:12:18,636 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:12:18,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1667223061, now seen corresponding path program 1 times [2023-12-02 19:12:18,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:12:18,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456064602] [2023-12-02 19:12:18,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:12:18,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:12:18,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:12:18,887 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 19:12:18,887 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:12:18,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456064602] [2023-12-02 19:12:18,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456064602] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:12:18,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:12:18,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 19:12:18,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142559400] [2023-12-02 19:12:18,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:12:18,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 19:12:18,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:12:18,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 19:12:18,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-02 19:12:18,890 INFO L87 Difference]: Start difference. First operand 126 states and 158 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-02 19:12:19,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:12:19,071 INFO L93 Difference]: Finished difference Result 361 states and 459 transitions. [2023-12-02 19:12:19,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 19:12:19,072 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 37 [2023-12-02 19:12:19,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:12:19,074 INFO L225 Difference]: With dead ends: 361 [2023-12-02 19:12:19,075 INFO L226 Difference]: Without dead ends: 237 [2023-12-02 19:12:19,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-02 19:12:19,077 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 136 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 19:12:19,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 205 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 19:12:19,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2023-12-02 19:12:19,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 229. [2023-12-02 19:12:19,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 153 states have (on average 1.2745098039215685) internal successors, (195), 169 states have internal predecessors, (195), 41 states have call successors, (41), 34 states have call predecessors, (41), 34 states have return successors, (54), 38 states have call predecessors, (54), 41 states have call successors, (54) [2023-12-02 19:12:19,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 290 transitions. [2023-12-02 19:12:19,112 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 290 transitions. Word has length 37 [2023-12-02 19:12:19,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:12:19,113 INFO L495 AbstractCegarLoop]: Abstraction has 229 states and 290 transitions. [2023-12-02 19:12:19,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-02 19:12:19,113 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 290 transitions. [2023-12-02 19:12:19,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-02 19:12:19,115 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:12:19,115 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:12:19,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 19:12:19,116 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:12:19,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:12:19,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1855445742, now seen corresponding path program 1 times [2023-12-02 19:12:19,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:12:19,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765092254] [2023-12-02 19:12:19,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:12:19,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:12:19,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:12:19,382 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 19:12:19,383 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:12:19,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765092254] [2023-12-02 19:12:19,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765092254] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:12:19,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:12:19,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-02 19:12:19,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387780555] [2023-12-02 19:12:19,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:12:19,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-02 19:12:19,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:12:19,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-02 19:12:19,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-02 19:12:19,385 INFO L87 Difference]: Start difference. First operand 229 states and 290 transitions. Second operand has 8 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 5 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-02 19:12:19,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:12:19,897 INFO L93 Difference]: Finished difference Result 548 states and 705 transitions. [2023-12-02 19:12:19,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-02 19:12:19,899 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 5 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) Word has length 40 [2023-12-02 19:12:19,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:12:19,904 INFO L225 Difference]: With dead ends: 548 [2023-12-02 19:12:19,905 INFO L226 Difference]: Without dead ends: 384 [2023-12-02 19:12:19,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-02 19:12:19,907 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 195 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-02 19:12:19,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 303 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 19:12:19,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2023-12-02 19:12:19,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 361. [2023-12-02 19:12:19,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 242 states have (on average 1.2727272727272727) internal successors, (308), 268 states have internal predecessors, (308), 64 states have call successors, (64), 50 states have call predecessors, (64), 54 states have return successors, (86), 62 states have call predecessors, (86), 64 states have call successors, (86) [2023-12-02 19:12:19,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 458 transitions. [2023-12-02 19:12:19,950 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 458 transitions. Word has length 40 [2023-12-02 19:12:19,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:12:19,950 INFO L495 AbstractCegarLoop]: Abstraction has 361 states and 458 transitions. [2023-12-02 19:12:19,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 5 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-02 19:12:19,951 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 458 transitions. [2023-12-02 19:12:19,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-02 19:12:19,954 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:12:19,954 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:12:19,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-02 19:12:19,954 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:12:19,955 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:12:19,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1501811118, now seen corresponding path program 1 times [2023-12-02 19:12:19,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:12:19,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877538751] [2023-12-02 19:12:19,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:12:19,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:12:19,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:12:20,143 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-02 19:12:20,144 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:12:20,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877538751] [2023-12-02 19:12:20,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877538751] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:12:20,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [141302802] [2023-12-02 19:12:20,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:12:20,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:12:20,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e4baf7-7fae-40e5-b99f-980268c36ba8/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:12:20,148 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e4baf7-7fae-40e5-b99f-980268c36ba8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:12:20,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e4baf7-7fae-40e5-b99f-980268c36ba8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 19:12:20,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:12:20,268 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-02 19:12:20,276 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:12:20,414 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 31 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 19:12:20,414 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 19:12:20,558 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-02 19:12:20,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [141302802] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 19:12:20,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1625682447] [2023-12-02 19:12:20,579 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2023-12-02 19:12:20,579 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 19:12:20,583 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 19:12:20,588 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 19:12:20,589 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 19:12:28,795 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 11 for LOIs [2023-12-02 19:12:28,799 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 22 for LOIs [2023-12-02 19:12:29,026 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 44 for LOIs [2023-12-02 19:12:29,044 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 21 for LOIs [2023-12-02 19:12:29,112 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 22 for LOIs [2023-12-02 19:12:29,116 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 19:12:31,870 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3928#(and (= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| |timeShift_getWaterLevel_#res#1|) (= ~waterLevel~0 |timeShift_getWaterLevel_#res#1|) (exists ((|v_ULTIMATE.start_test_~tmp___2~0#1_BEFORE_CALL_27| Int)) (and (not (= |v_ULTIMATE.start_test_~tmp___2~0#1_BEFORE_CALL_27| 0)) (<= |v_ULTIMATE.start_test_~tmp___2~0#1_BEFORE_CALL_27| 2147483647) (<= 0 (+ |v_ULTIMATE.start_test_~tmp___2~0#1_BEFORE_CALL_27| 2147483648)))) (exists ((|v_processEnvironment__wrappee__methaneQuery_activatePump_#t~ret6#1_32| Int)) (and (= |v_processEnvironment__wrappee__methaneQuery_activatePump_#t~ret6#1_32| 0) (= ~pumpRunning~0 1))) (= |old(~pumpRunning~0)| 0) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| 2)) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1|) (<= 2 |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1|) (= |old(~waterLevel~0)| ~waterLevel~0) (<= |timeShift_getWaterLevel_#res#1| 2147483647) (<= ~methaneLevelCritical~0 2147483647) (<= 0 (+ ~methaneLevelCritical~0 2147483648)) (= ~switchedOnBeforeTS~0 0) (not (= 0 ~systemActive~0)) (= |old(~switchedOnBeforeTS~0)| 0))' at error location [2023-12-02 19:12:31,870 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 19:12:31,870 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 19:12:31,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 14 [2023-12-02 19:12:31,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258857743] [2023-12-02 19:12:31,871 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 19:12:31,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-02 19:12:31,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:12:31,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-02 19:12:31,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=2047, Unknown=0, NotChecked=0, Total=2256 [2023-12-02 19:12:31,873 INFO L87 Difference]: Start difference. First operand 361 states and 458 transitions. Second operand has 14 states, 13 states have (on average 6.615384615384615) internal successors, (86), 13 states have internal predecessors, (86), 5 states have call successors, (18), 4 states have call predecessors, (18), 5 states have return successors, (18), 7 states have call predecessors, (18), 5 states have call successors, (18) [2023-12-02 19:12:34,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:12:34,282 INFO L93 Difference]: Finished difference Result 3553 states and 4902 transitions. [2023-12-02 19:12:34,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2023-12-02 19:12:34,283 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.615384615384615) internal successors, (86), 13 states have internal predecessors, (86), 5 states have call successors, (18), 4 states have call predecessors, (18), 5 states have return successors, (18), 7 states have call predecessors, (18), 5 states have call successors, (18) Word has length 70 [2023-12-02 19:12:34,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:12:34,302 INFO L225 Difference]: With dead ends: 3553 [2023-12-02 19:12:34,302 INFO L226 Difference]: Without dead ends: 2545 [2023-12-02 19:12:34,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4282 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=942, Invalid=11714, Unknown=0, NotChecked=0, Total=12656 [2023-12-02 19:12:34,315 INFO L413 NwaCegarLoop]: 273 mSDtfsCounter, 768 mSDsluCounter, 1542 mSDsCounter, 0 mSdLazyCounter, 1870 mSolverCounterSat, 417 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 777 SdHoareTripleChecker+Valid, 1815 SdHoareTripleChecker+Invalid, 2287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 417 IncrementalHoareTripleChecker+Valid, 1870 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-02 19:12:34,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [777 Valid, 1815 Invalid, 2287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [417 Valid, 1870 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-02 19:12:34,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2545 states. [2023-12-02 19:12:34,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2545 to 1811. [2023-12-02 19:12:34,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1811 states, 1233 states have (on average 1.2449310624493106) internal successors, (1535), 1341 states have internal predecessors, (1535), 296 states have call successors, (296), 259 states have call predecessors, (296), 281 states have return successors, (449), 287 states have call predecessors, (449), 296 states have call successors, (449) [2023-12-02 19:12:34,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1811 states to 1811 states and 2280 transitions. [2023-12-02 19:12:34,509 INFO L78 Accepts]: Start accepts. Automaton has 1811 states and 2280 transitions. Word has length 70 [2023-12-02 19:12:34,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:12:34,510 INFO L495 AbstractCegarLoop]: Abstraction has 1811 states and 2280 transitions. [2023-12-02 19:12:34,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.615384615384615) internal successors, (86), 13 states have internal predecessors, (86), 5 states have call successors, (18), 4 states have call predecessors, (18), 5 states have return successors, (18), 7 states have call predecessors, (18), 5 states have call successors, (18) [2023-12-02 19:12:34,510 INFO L276 IsEmpty]: Start isEmpty. Operand 1811 states and 2280 transitions. [2023-12-02 19:12:34,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-02 19:12:34,514 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:12:34,514 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:12:34,520 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e4baf7-7fae-40e5-b99f-980268c36ba8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 19:12:34,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e4baf7-7fae-40e5-b99f-980268c36ba8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-12-02 19:12:34,715 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:12:34,715 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:12:34,716 INFO L85 PathProgramCache]: Analyzing trace with hash -250137366, now seen corresponding path program 1 times [2023-12-02 19:12:34,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:12:34,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919829537] [2023-12-02 19:12:34,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:12:34,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:12:34,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:12:34,951 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-02 19:12:34,951 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:12:34,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919829537] [2023-12-02 19:12:34,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919829537] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:12:34,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1260918554] [2023-12-02 19:12:34,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:12:34,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:12:34,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e4baf7-7fae-40e5-b99f-980268c36ba8/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:12:34,956 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e4baf7-7fae-40e5-b99f-980268c36ba8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:12:34,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e4baf7-7fae-40e5-b99f-980268c36ba8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 19:12:35,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:12:35,056 INFO L262 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-02 19:12:35,059 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:12:35,114 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-02 19:12:35,114 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 19:12:35,221 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 19:12:35,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1260918554] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 19:12:35,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1268933081] [2023-12-02 19:12:35,225 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2023-12-02 19:12:35,226 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 19:12:35,226 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 19:12:35,226 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 19:12:35,226 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 19:12:41,127 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 6 for LOIs [2023-12-02 19:12:41,129 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 21 for LOIs [2023-12-02 19:12:41,415 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 24 for LOIs [2023-12-02 19:12:41,419 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 62 for LOIs [2023-12-02 19:12:41,728 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 36 for LOIs [2023-12-02 19:12:41,741 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 49 for LOIs [2023-12-02 19:12:41,753 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 19:12:44,956 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '11790#(and (= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| |timeShift_getWaterLevel_#res#1|) (= ~waterLevel~0 |timeShift_getWaterLevel_#res#1|) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 0)) (<= 0 (+ 2147483648 |old(~pumpRunning~0)|)) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| 2147483647) (<= |old(~pumpRunning~0)| 2147483647) (<= 0 (+ ~waterLevel~0 2147483648)) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| 2)) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1|) (<= 0 (+ |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 2147483648)) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 2147483647) (= ~switchedOnBeforeTS~0 0))' at error location [2023-12-02 19:12:44,956 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 19:12:44,956 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 19:12:44,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6, 6] total 16 [2023-12-02 19:12:44,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592975410] [2023-12-02 19:12:44,957 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 19:12:44,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-02 19:12:44,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:12:44,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-02 19:12:44,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=268, Invalid=2812, Unknown=0, NotChecked=0, Total=3080 [2023-12-02 19:12:44,960 INFO L87 Difference]: Start difference. First operand 1811 states and 2280 transitions. Second operand has 16 states, 13 states have (on average 6.0) internal successors, (78), 12 states have internal predecessors, (78), 4 states have call successors, (17), 3 states have call predecessors, (17), 6 states have return successors, (20), 9 states have call predecessors, (20), 4 states have call successors, (20) [2023-12-02 19:12:48,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:12:48,040 INFO L93 Difference]: Finished difference Result 3420 states and 4576 transitions. [2023-12-02 19:12:48,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2023-12-02 19:12:48,040 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 6.0) internal successors, (78), 12 states have internal predecessors, (78), 4 states have call successors, (17), 3 states have call predecessors, (17), 6 states have return successors, (20), 9 states have call predecessors, (20), 4 states have call successors, (20) Word has length 73 [2023-12-02 19:12:48,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:12:48,061 INFO L225 Difference]: With dead ends: 3420 [2023-12-02 19:12:48,061 INFO L226 Difference]: Without dead ends: 3418 [2023-12-02 19:12:48,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 194 SyntacticMatches, 3 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6093 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=1271, Invalid=16819, Unknown=0, NotChecked=0, Total=18090 [2023-12-02 19:12:48,069 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 629 mSDsluCounter, 1574 mSDsCounter, 0 mSdLazyCounter, 2178 mSolverCounterSat, 323 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 636 SdHoareTripleChecker+Valid, 1802 SdHoareTripleChecker+Invalid, 2501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 323 IncrementalHoareTripleChecker+Valid, 2178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-02 19:12:48,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [636 Valid, 1802 Invalid, 2501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [323 Valid, 2178 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-02 19:12:48,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3418 states. [2023-12-02 19:12:48,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3418 to 2761. [2023-12-02 19:12:48,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2761 states, 1877 states have (on average 1.2402770378263186) internal successors, (2328), 2047 states have internal predecessors, (2328), 457 states have call successors, (457), 399 states have call predecessors, (457), 426 states have return successors, (738), 424 states have call predecessors, (738), 457 states have call successors, (738) [2023-12-02 19:12:48,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2761 states to 2761 states and 3523 transitions. [2023-12-02 19:12:48,289 INFO L78 Accepts]: Start accepts. Automaton has 2761 states and 3523 transitions. Word has length 73 [2023-12-02 19:12:48,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:12:48,289 INFO L495 AbstractCegarLoop]: Abstraction has 2761 states and 3523 transitions. [2023-12-02 19:12:48,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 6.0) internal successors, (78), 12 states have internal predecessors, (78), 4 states have call successors, (17), 3 states have call predecessors, (17), 6 states have return successors, (20), 9 states have call predecessors, (20), 4 states have call successors, (20) [2023-12-02 19:12:48,290 INFO L276 IsEmpty]: Start isEmpty. Operand 2761 states and 3523 transitions. [2023-12-02 19:12:48,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-02 19:12:48,298 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:12:48,298 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:12:48,304 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e4baf7-7fae-40e5-b99f-980268c36ba8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 19:12:48,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e4baf7-7fae-40e5-b99f-980268c36ba8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:12:48,499 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:12:48,499 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:12:48,499 INFO L85 PathProgramCache]: Analyzing trace with hash 2097903136, now seen corresponding path program 1 times [2023-12-02 19:12:48,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:12:48,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452432101] [2023-12-02 19:12:48,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:12:48,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:12:48,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:12:48,553 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 36 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-12-02 19:12:48,554 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:12:48,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452432101] [2023-12-02 19:12:48,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452432101] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:12:48,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [837920666] [2023-12-02 19:12:48,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:12:48,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:12:48,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e4baf7-7fae-40e5-b99f-980268c36ba8/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:12:48,555 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e4baf7-7fae-40e5-b99f-980268c36ba8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:12:48,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e4baf7-7fae-40e5-b99f-980268c36ba8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 19:12:48,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:12:48,666 INFO L262 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 19:12:48,670 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:12:48,682 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-02 19:12:48,682 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 19:12:48,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [837920666] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:12:48,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 19:12:48,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 4 [2023-12-02 19:12:48,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995604398] [2023-12-02 19:12:48,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:12:48,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:12:48,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:12:48,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:12:48,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:12:48,684 INFO L87 Difference]: Start difference. First operand 2761 states and 3523 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-02 19:12:48,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:12:48,948 INFO L93 Difference]: Finished difference Result 5528 states and 7034 transitions. [2023-12-02 19:12:48,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:12:48,949 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 106 [2023-12-02 19:12:48,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:12:48,962 INFO L225 Difference]: With dead ends: 5528 [2023-12-02 19:12:48,962 INFO L226 Difference]: Without dead ends: 2014 [2023-12-02 19:12:48,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:12:48,972 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 29 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 19:12:48,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 141 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 19:12:48,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2014 states. [2023-12-02 19:12:49,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2014 to 2014. [2023-12-02 19:12:49,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2014 states, 1354 states have (on average 1.18685376661743) internal successors, (1607), 1465 states have internal predecessors, (1607), 340 states have call successors, (340), 293 states have call predecessors, (340), 319 states have return successors, (520), 322 states have call predecessors, (520), 340 states have call successors, (520) [2023-12-02 19:12:49,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2014 states to 2014 states and 2467 transitions. [2023-12-02 19:12:49,178 INFO L78 Accepts]: Start accepts. Automaton has 2014 states and 2467 transitions. Word has length 106 [2023-12-02 19:12:49,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:12:49,178 INFO L495 AbstractCegarLoop]: Abstraction has 2014 states and 2467 transitions. [2023-12-02 19:12:49,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-02 19:12:49,178 INFO L276 IsEmpty]: Start isEmpty. Operand 2014 states and 2467 transitions. [2023-12-02 19:12:49,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-02 19:12:49,183 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:12:49,183 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:12:49,189 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e4baf7-7fae-40e5-b99f-980268c36ba8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 19:12:49,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e4baf7-7fae-40e5-b99f-980268c36ba8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-12-02 19:12:49,389 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:12:49,389 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:12:49,389 INFO L85 PathProgramCache]: Analyzing trace with hash -463562760, now seen corresponding path program 1 times [2023-12-02 19:12:49,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:12:49,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302012454] [2023-12-02 19:12:49,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:12:49,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:12:49,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:12:49,514 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 42 proven. 1 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-12-02 19:12:49,515 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:12:49,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302012454] [2023-12-02 19:12:49,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302012454] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:12:49,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [970905496] [2023-12-02 19:12:49,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:12:49,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:12:49,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e4baf7-7fae-40e5-b99f-980268c36ba8/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:12:49,517 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e4baf7-7fae-40e5-b99f-980268c36ba8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:12:49,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e4baf7-7fae-40e5-b99f-980268c36ba8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 19:12:49,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:12:49,618 INFO L262 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-02 19:12:49,623 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:12:49,989 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 29 proven. 56 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 19:12:49,989 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 19:12:50,459 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 54 proven. 5 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-02 19:12:50,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [970905496] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 19:12:50,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [455278956] [2023-12-02 19:12:50,462 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2023-12-02 19:12:50,462 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 19:12:50,463 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 19:12:50,463 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 19:12:50,463 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 19:12:55,242 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 29 for LOIs [2023-12-02 19:12:55,246 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 44 for LOIs [2023-12-02 19:12:55,820 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 63 for LOIs [2023-12-02 19:12:55,847 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 41 for LOIs [2023-12-02 19:12:55,982 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 56 for LOIs [2023-12-02 19:12:56,041 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 19:13:01,012 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '31429#(and (= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| |timeShift_getWaterLevel_#res#1|) (<= 1 |#StackHeapBarrier|) (= ~waterLevel~0 |timeShift_getWaterLevel_#res#1|) (= ~methaneLevelCritical~0 0) (= ~head~0.offset 0) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| 2147483647) (= 1 ~systemActive~0) (= |old(~pumpRunning~0)| 0) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| 2)) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1|) (= |old(~waterLevel~0)| ~waterLevel~0) (<= 2 |timeShift_getWaterLevel_#res#1|) (= ~head~0.base 0) (exists ((|v_processEnvironment__wrappee__methaneQuery_activatePump_#t~ret6#1_70| Int)) (and (= |v_processEnvironment__wrappee__methaneQuery_activatePump_#t~ret6#1_70| 0) (= ~pumpRunning~0 1))) (exists ((|v_ULTIMATE.start_test_~tmp___2~0#1_BEFORE_CALL_73| Int) (|v_ULTIMATE.start_test_~tmp~4#1_BEFORE_CALL_87| Int)) (and (not (= |v_ULTIMATE.start_test_~tmp___2~0#1_BEFORE_CALL_73| 0)) (<= |v_ULTIMATE.start_test_~tmp___2~0#1_BEFORE_CALL_73| 2147483647) (<= 0 (+ |v_ULTIMATE.start_test_~tmp___2~0#1_BEFORE_CALL_73| 2147483648)) (<= |v_ULTIMATE.start_test_~tmp~4#1_BEFORE_CALL_87| 2147483647) (<= 0 (+ |v_ULTIMATE.start_test_~tmp~4#1_BEFORE_CALL_87| 2147483648)))) (= ~switchedOnBeforeTS~0 0) (= ~cleanupTimeShifts~0 4))' at error location [2023-12-02 19:13:01,013 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 19:13:01,013 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 19:13:01,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 13, 11] total 26 [2023-12-02 19:13:01,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929852475] [2023-12-02 19:13:01,013 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 19:13:01,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-02 19:13:01,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:13:01,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-02 19:13:01,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=453, Invalid=3087, Unknown=0, NotChecked=0, Total=3540 [2023-12-02 19:13:01,017 INFO L87 Difference]: Start difference. First operand 2014 states and 2467 transitions. Second operand has 26 states, 25 states have (on average 6.52) internal successors, (163), 25 states have internal predecessors, (163), 14 states have call successors, (38), 6 states have call predecessors, (38), 11 states have return successors, (36), 15 states have call predecessors, (36), 13 states have call successors, (36) [2023-12-02 19:13:05,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:13:05,065 INFO L93 Difference]: Finished difference Result 4806 states and 6026 transitions. [2023-12-02 19:13:05,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2023-12-02 19:13:05,066 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 6.52) internal successors, (163), 25 states have internal predecessors, (163), 14 states have call successors, (38), 6 states have call predecessors, (38), 11 states have return successors, (36), 15 states have call predecessors, (36), 13 states have call successors, (36) Word has length 103 [2023-12-02 19:13:05,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:13:05,067 INFO L225 Difference]: With dead ends: 4806 [2023-12-02 19:13:05,067 INFO L226 Difference]: Without dead ends: 0 [2023-12-02 19:13:05,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 460 GetRequests, 292 SyntacticMatches, 10 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9529 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=2508, Invalid=22932, Unknown=0, NotChecked=0, Total=25440 [2023-12-02 19:13:05,085 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 1209 mSDsluCounter, 881 mSDsCounter, 0 mSdLazyCounter, 2394 mSolverCounterSat, 938 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1209 SdHoareTripleChecker+Valid, 995 SdHoareTripleChecker+Invalid, 3332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 938 IncrementalHoareTripleChecker+Valid, 2394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-02 19:13:05,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1209 Valid, 995 Invalid, 3332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [938 Valid, 2394 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-02 19:13:05,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-02 19:13:05,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-02 19:13:05,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 19:13:05,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-02 19:13:05,086 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 103 [2023-12-02 19:13:05,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:13:05,086 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-02 19:13:05,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 6.52) internal successors, (163), 25 states have internal predecessors, (163), 14 states have call successors, (38), 6 states have call predecessors, (38), 11 states have return successors, (36), 15 states have call predecessors, (36), 13 states have call successors, (36) [2023-12-02 19:13:05,087 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-02 19:13:05,087 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 19:13:05,089 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 19:13:05,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e4baf7-7fae-40e5-b99f-980268c36ba8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-02 19:13:05,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e4baf7-7fae-40e5-b99f-980268c36ba8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-12-02 19:13:05,291 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-02 19:13:21,808 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 185 192) no Hoare annotation was computed. [2023-12-02 19:13:21,808 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 185 192) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse1 (< ~waterLevel~0 2)) (.cse2 (= 0 ~systemActive~0))) (and (or (not (= ~pumpRunning~0 0)) .cse0 .cse1 .cse2) (or .cse0 .cse2 (= ~pumpRunning~0 ~switchedOnBeforeTS~0) (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|))) (or (not (= ~methaneLevelCritical~0 0)) (not (= |old(~pumpRunning~0)| 1)) .cse1 .cse2 (= ~pumpRunning~0 1)))) [2023-12-02 19:13:21,808 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 101 107) no Hoare annotation was computed. [2023-12-02 19:13:21,808 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 101 107) the Hoare annotation is: true [2023-12-02 19:13:21,808 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 932 943) the Hoare annotation is: (let ((.cse1 (= ~methaneLevelCritical~0 0)) (.cse7 (= |old(~methaneLevelCritical~0)| 0))) (let ((.cse0 (not .cse7)) (.cse6 (not (= 2 ~waterLevel~0))) (.cse3 (not (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (.cse5 (not (= 0 ~systemActive~0))) (.cse4 (not (= ~pumpRunning~0 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse8 (not .cse1)) (.cse9 (not (= ~waterLevel~0 1)))) (and (or (< 2 ~waterLevel~0) .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse4 .cse1 .cse3 .cse5) (or .cse2 .cse6 .cse7 .cse8) (or .cse0 .cse1 .cse2 .cse6 (not (= ~pumpRunning~0 1))) (or .cse9 .cse0 .cse4 .cse1 .cse2) (or .cse0 .cse4 .cse1 .cse2 .cse6) (or .cse4 .cse6 .cse7 .cse8 .cse3 .cse5) (or .cse4 .cse2 .cse7 .cse8 (and .cse9 (<= 1 ~waterLevel~0)))))) [2023-12-02 19:13:21,808 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 932 943) no Hoare annotation was computed. [2023-12-02 19:13:21,808 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 355 384) no Hoare annotation was computed. [2023-12-02 19:13:21,809 INFO L899 garLoopResultBuilder]: For program point L380(lines 355 384) no Hoare annotation was computed. [2023-12-02 19:13:21,809 INFO L899 garLoopResultBuilder]: For program point L376(line 376) no Hoare annotation was computed. [2023-12-02 19:13:21,809 INFO L899 garLoopResultBuilder]: For program point L369(lines 369 373) no Hoare annotation was computed. [2023-12-02 19:13:21,809 INFO L902 garLoopResultBuilder]: At program point L369-1(lines 369 373) the Hoare annotation is: true [2023-12-02 19:13:21,809 INFO L902 garLoopResultBuilder]: At program point L365-2(lines 365 379) the Hoare annotation is: true [2023-12-02 19:13:21,809 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 355 384) the Hoare annotation is: true [2023-12-02 19:13:21,809 INFO L902 garLoopResultBuilder]: At program point L361(line 361) the Hoare annotation is: true [2023-12-02 19:13:21,809 INFO L899 garLoopResultBuilder]: For program point L361-1(line 361) no Hoare annotation was computed. [2023-12-02 19:13:21,809 INFO L895 garLoopResultBuilder]: At program point L886(line 886) the Hoare annotation is: (let ((.cse9 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse0 (= ~methaneLevelCritical~0 0)) (.cse18 (= |old(~pumpRunning~0)| 0)) (.cse7 (= ~switchedOnBeforeTS~0 0)) (.cse5 (= ~pumpRunning~0 0)) (.cse19 (or (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) (<= 1 |old(~waterLevel~0)|)) (and (<= |old(~waterLevel~0)| 0) .cse9))) (.cse6 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| ~waterLevel~0))) (let ((.cse2 (and (not .cse7) .cse5 .cse19 .cse6)) (.cse17 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| 1)) (.cse4 (not .cse18)) (.cse8 (not (= 0 ~systemActive~0))) (.cse10 (< 1 |old(~waterLevel~0)|)) (.cse11 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse15 (not .cse5)) (.cse16 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse1 (not (= 1 ~systemActive~0))) (.cse12 (not .cse0)) (.cse13 (not (= |old(~pumpRunning~0)| 1))) (.cse3 (not (= |old(~waterLevel~0)| 2))) (.cse14 (= ~pumpRunning~0 1))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 (and .cse5 .cse6 .cse7) .cse8) (or .cse4 (and .cse5 .cse6 .cse9 .cse7) .cse1 (< 2 |old(~waterLevel~0)|)) (or .cse10 .cse11 .cse0 .cse1 .cse2 (= |old(~switchedOnBeforeTS~0)| 0)) (or .cse10 .cse1 .cse12 .cse13 (not (= |old(~switchedOnBeforeTS~0)| 1)) .cse14) (or .cse1 (and .cse15 (= ~waterLevel~0 1) .cse16 .cse17) .cse12 .cse3) (or .cse4 (not (= |old(~waterLevel~0)| 1)) .cse8 .cse17) (or .cse4 .cse3 .cse8) (or .cse10 .cse11 .cse1 .cse18 .cse12 (and .cse15 .cse19 .cse6 .cse16)) (or .cse1 .cse12 .cse13 .cse3 .cse14))))) [2023-12-02 19:13:21,810 INFO L899 garLoopResultBuilder]: For program point L886-1(line 886) no Hoare annotation was computed. [2023-12-02 19:13:21,810 INFO L899 garLoopResultBuilder]: For program point L81-2(lines 77 99) no Hoare annotation was computed. [2023-12-02 19:13:21,810 INFO L899 garLoopResultBuilder]: For program point L143(lines 143 151) no Hoare annotation was computed. [2023-12-02 19:13:21,810 INFO L899 garLoopResultBuilder]: For program point L139(lines 139 156) no Hoare annotation was computed. [2023-12-02 19:13:21,810 INFO L895 garLoopResultBuilder]: At program point L871(line 871) the Hoare annotation is: (let ((.cse4 (= ~switchedOnBeforeTS~0 0))) (let ((.cse16 (= 0 ~systemActive~0)) (.cse9 (= |old(~pumpRunning~0)| 0)) (.cse10 (not .cse4)) (.cse19 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse21 (= ~methaneLevelCritical~0 0)) (.cse20 (not (= |old(~pumpRunning~0)| 1))) (.cse14 (= ~pumpRunning~0 0))) (let ((.cse5 (and (not (= |old(~waterLevel~0)| 1)) (<= 1 |old(~waterLevel~0)|))) (.cse8 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse7 (not .cse14)) (.cse11 (and .cse21 .cse20)) (.cse3 (not (= |old(~waterLevel~0)| 2))) (.cse18 (and .cse10 .cse14 .cse19)) (.cse13 (= |old(~switchedOnBeforeTS~0)| 0)) (.cse0 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse1 (not .cse9)) (.cse6 (and .cse14 .cse19 .cse4)) (.cse12 (not .cse16)) (.cse2 (not (= 1 ~systemActive~0))) (.cse15 (not .cse21)) (.cse17 (= ~pumpRunning~0 1))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse1 .cse2 .cse5 .cse6) (or .cse0 (and .cse7 .cse8) .cse2 .cse9 .cse3) (or .cse10 .cse1 .cse11 .cse12 .cse13) (or .cse1 .cse14 .cse2 .cse3) (or .cse2 .cse11 .cse9 .cse15 .cse3 .cse16 .cse17) (or (= 2 ~waterLevel~0) .cse2 .cse3) (or .cse1 .cse2 .cse5 .cse18 .cse13) (or .cse10 .cse1 .cse2 .cse3 .cse13) (or (< 1 |old(~waterLevel~0)|) .cse0 .cse2 (and .cse7 .cse19 .cse8) .cse9) (or .cse7 .cse2 .cse11 .cse9 .cse3 .cse16) (or .cse1 (and .cse14 (<= 2 ~waterLevel~0) .cse19) .cse18 .cse12 .cse13) (or .cse0 .cse1 .cse6 .cse12) (or .cse2 .cse15 .cse20 (< 2 |old(~waterLevel~0)|) (not (= |old(~switchedOnBeforeTS~0)| 1)) .cse17))))) [2023-12-02 19:13:21,810 INFO L899 garLoopResultBuilder]: For program point L871-1(line 871) no Hoare annotation was computed. [2023-12-02 19:13:21,810 INFO L899 garLoopResultBuilder]: For program point L888(lines 888 898) no Hoare annotation was computed. [2023-12-02 19:13:21,810 INFO L899 garLoopResultBuilder]: For program point L54(line 54) no Hoare annotation was computed. [2023-12-02 19:13:21,811 INFO L895 garLoopResultBuilder]: At program point L149(line 149) the Hoare annotation is: (let ((.cse11 (not (= |old(~waterLevel~0)| 1))) (.cse6 (not (= |old(~pumpRunning~0)| 1))) (.cse8 (= ~pumpRunning~0 1)) (.cse5 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse2 (not (= ~pumpRunning~0 0))) (.cse7 (<= 1 |old(~waterLevel~0)|)) (.cse3 (= |timeShift_processEnvironment_~tmp~1#1| 0)) (.cse4 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse9 (= ~methaneLevelCritical~0 0)) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~waterLevel~0)| 2))) (.cse10 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 (and .cse2 .cse3 (= ~waterLevel~0 1) .cse4)) (or .cse5 .cse0 .cse6 .cse7 .cse8) (or (< 1 |old(~waterLevel~0)|) .cse5 .cse9 .cse0) (or .cse10 .cse0 .cse1) (or .cse5 .cse11 .cse0 .cse6 .cse8) (or .cse10 .cse0 (and .cse11 .cse7)) (or .cse0 .cse6 .cse1 .cse8) (or .cse5 .cse0 (and .cse2 (or (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse7) (and (<= |old(~waterLevel~0)| 0) (= |old(~waterLevel~0)| ~waterLevel~0))) .cse3 .cse4) (< 2 |old(~waterLevel~0)|)) (or .cse9 .cse0 .cse1) (or .cse10 (not (= 0 ~systemActive~0))))) [2023-12-02 19:13:21,811 INFO L899 garLoopResultBuilder]: For program point L884(lines 884 901) no Hoare annotation was computed. [2023-12-02 19:13:21,811 INFO L899 garLoopResultBuilder]: For program point L884-1(lines 876 904) no Hoare annotation was computed. [2023-12-02 19:13:21,811 INFO L895 garLoopResultBuilder]: At program point L145(line 145) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= |timeShift_processEnvironment_~tmp~1#1| ~methaneLevelCritical~0)) (.cse3 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse5 (not (= |old(~waterLevel~0)| 2))) (.cse4 (not (= 1 ~systemActive~0))) (.cse6 (<= 1 |old(~waterLevel~0)|)) (.cse7 (not (= |old(~pumpRunning~0)| 0)))) (and (or (and .cse0 .cse1 .cse2 (= ~waterLevel~0 1) .cse3) .cse4 .cse5) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (and .cse0 (or (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse6) (and (<= |old(~waterLevel~0)| 0) (= |old(~waterLevel~0)| ~waterLevel~0))) .cse1 .cse2 .cse3) .cse4 (< 2 |old(~waterLevel~0)|)) (or .cse7 .cse4 .cse5) (or .cse7 .cse4 (and (not (= |old(~waterLevel~0)| 1)) .cse6)) (or .cse7 (not (= 0 ~systemActive~0))))) [2023-12-02 19:13:21,811 INFO L895 garLoopResultBuilder]: At program point L141(line 141) the Hoare annotation is: (let ((.cse3 (<= 1 |old(~waterLevel~0)|)) (.cse2 (not (= ~pumpRunning~0 0))) (.cse4 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse0 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse10 (not (= |old(~waterLevel~0)| 1))) (.cse8 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse6 (not (= |old(~pumpRunning~0)| 1))) (.cse9 (not (= |old(~waterLevel~0)| 2))) (.cse7 (= ~pumpRunning~0 1))) (and (or .cse0 .cse1 (and .cse2 (or (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse3) (and (<= |old(~waterLevel~0)| 0) (= |old(~waterLevel~0)| ~waterLevel~0))) .cse4) (< 2 |old(~waterLevel~0)|)) (or .cse1 .cse5 .cse6 .cse3 (not (= |old(~switchedOnBeforeTS~0)| 1)) .cse7) (or .cse8 .cse1 .cse9) (or .cse8 .cse1 (and .cse10 .cse3)) (or .cse1 (and .cse2 (= ~waterLevel~0 1) .cse4) .cse9) (or .cse0 .cse10 .cse1 .cse5 .cse6 .cse7) (or .cse8 (not (= 0 ~systemActive~0))) (or .cse1 .cse5 .cse6 .cse9 .cse7))) [2023-12-02 19:13:21,811 INFO L899 garLoopResultBuilder]: For program point L141-1(line 141) no Hoare annotation was computed. [2023-12-02 19:13:21,812 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 74 100) the Hoare annotation is: (let ((.cse4 (= ~switchedOnBeforeTS~0 0))) (let ((.cse16 (= 0 ~systemActive~0)) (.cse9 (= |old(~pumpRunning~0)| 0)) (.cse10 (not .cse4)) (.cse19 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse21 (= ~methaneLevelCritical~0 0)) (.cse20 (not (= |old(~pumpRunning~0)| 1))) (.cse14 (= ~pumpRunning~0 0))) (let ((.cse5 (and (not (= |old(~waterLevel~0)| 1)) (<= 1 |old(~waterLevel~0)|))) (.cse8 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse7 (not .cse14)) (.cse11 (and .cse21 .cse20)) (.cse3 (not (= |old(~waterLevel~0)| 2))) (.cse18 (and .cse10 .cse14 .cse19)) (.cse13 (= |old(~switchedOnBeforeTS~0)| 0)) (.cse0 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse1 (not .cse9)) (.cse6 (and .cse14 .cse19 .cse4)) (.cse12 (not .cse16)) (.cse2 (not (= 1 ~systemActive~0))) (.cse15 (not .cse21)) (.cse17 (= ~pumpRunning~0 1))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse1 .cse2 .cse5 .cse6) (or .cse0 (and .cse7 .cse8) .cse2 .cse9 .cse3) (or .cse10 .cse1 .cse11 .cse12 .cse13) (or .cse1 .cse14 .cse2 .cse3) (or .cse2 .cse11 .cse9 .cse15 .cse3 .cse16 .cse17) (or (= 2 ~waterLevel~0) .cse2 .cse3) (or .cse1 .cse2 .cse5 .cse18 .cse13) (or .cse10 .cse1 .cse2 .cse3 .cse13) (or (< 1 |old(~waterLevel~0)|) .cse0 .cse2 (and .cse7 .cse19 .cse8) .cse9) (or .cse7 .cse2 .cse11 .cse9 .cse3 .cse16) (or .cse1 (and .cse14 (<= 2 ~waterLevel~0) .cse19) .cse18 .cse12 .cse13) (or .cse0 .cse1 .cse6 .cse12) (or .cse2 .cse15 .cse20 (< 2 |old(~waterLevel~0)|) (not (= |old(~switchedOnBeforeTS~0)| 1)) .cse17))))) [2023-12-02 19:13:21,812 INFO L895 garLoopResultBuilder]: At program point L154(line 154) the Hoare annotation is: (let ((.cse5 (= |old(~pumpRunning~0)| 0))) (let ((.cse2 (= ~pumpRunning~0 0)) (.cse3 (= ~switchedOnBeforeTS~0 0)) (.cse4 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse1 (not (= 1 ~systemActive~0))) (.cse6 (not (= |old(~waterLevel~0)| 2))) (.cse0 (not .cse5))) (and (or .cse0 .cse1 (and (not (= |old(~waterLevel~0)| 1)) (<= 1 |old(~waterLevel~0)|)) (and .cse2 (= |old(~waterLevel~0)| ~waterLevel~0) .cse3)) (or .cse4 .cse1 .cse5 .cse6) (or .cse1 (and .cse2 (= 2 ~waterLevel~0) .cse3) .cse6) (or (< 1 |old(~waterLevel~0)|) .cse4 .cse1 .cse5) (or .cse1 (and (= ~methaneLevelCritical~0 0) (not (= |old(~pumpRunning~0)| 1))) .cse5 .cse6) (or .cse0 (not (= 0 ~systemActive~0)))))) [2023-12-02 19:13:21,812 INFO L899 garLoopResultBuilder]: For program point L154-1(lines 135 159) no Hoare annotation was computed. [2023-12-02 19:13:21,812 INFO L899 garLoopResultBuilder]: For program point L889(lines 889 895) no Hoare annotation was computed. [2023-12-02 19:13:21,812 INFO L899 garLoopResultBuilder]: For program point L88-1(lines 88 94) no Hoare annotation was computed. [2023-12-02 19:13:21,812 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 74 100) no Hoare annotation was computed. [2023-12-02 19:13:21,812 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2023-12-02 19:13:21,812 INFO L895 garLoopResultBuilder]: At program point L345(lines 296 346) the Hoare annotation is: false [2023-12-02 19:13:21,812 INFO L899 garLoopResultBuilder]: For program point L333(lines 333 339) no Hoare annotation was computed. [2023-12-02 19:13:21,812 INFO L895 garLoopResultBuilder]: At program point L333-2(lines 327 340) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 0)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= 2 ~waterLevel~0) .cse0 .cse1) (and .cse2 .cse0 .cse1 (or (< ~waterLevel~0 1) (= ~waterLevel~0 1))) (and .cse2 .cse1 (= 0 ~systemActive~0)) (and .cse0 .cse1 (<= ~waterLevel~0 2) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)))) [2023-12-02 19:13:21,812 INFO L899 garLoopResultBuilder]: For program point L317(lines 317 323) no Hoare annotation was computed. [2023-12-02 19:13:21,812 INFO L899 garLoopResultBuilder]: For program point L317-1(lines 317 323) no Hoare annotation was computed. [2023-12-02 19:13:21,813 INFO L899 garLoopResultBuilder]: For program point L441(lines 441 448) no Hoare annotation was computed. [2023-12-02 19:13:21,813 INFO L899 garLoopResultBuilder]: For program point L441-2(lines 441 448) no Hoare annotation was computed. [2023-12-02 19:13:21,813 INFO L895 garLoopResultBuilder]: At program point L342(lines 297 344) the Hoare annotation is: (let ((.cse5 (= ~methaneLevelCritical~0 0))) (let ((.cse3 (not .cse5)) (.cse6 (= ~waterLevel~0 1)) (.cse7 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse4 (= 2 ~waterLevel~0)) (.cse2 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (= 0 ~systemActive~0) (= ~switchedOnBeforeTS~0 0)) (and .cse0 (<= ~waterLevel~0 1) .cse2 .cse3 .cse1) (and .cse4 .cse2 .cse3 .cse1) (and .cse5 .cse2 .cse1 .cse6 .cse7) (and .cse0 .cse2 .cse1 (= |ULTIMATE.start_main_~tmp~5#1| 1) .cse6) (and .cse5 .cse2 .cse1 (<= ~waterLevel~0 0) .cse7) (and .cse0 .cse4 .cse2 .cse1) (and .cse4 .cse2 .cse1 (= ~pumpRunning~0 1))))) [2023-12-02 19:13:21,813 INFO L895 garLoopResultBuilder]: At program point L309(line 309) the Hoare annotation is: (let ((.cse0 (= ~methaneLevelCritical~0 0))) (let ((.cse6 (not .cse0)) (.cse3 (= ~waterLevel~0 1)) (.cse5 (= ~pumpRunning~0 0)) (.cse8 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse7 (= 2 ~waterLevel~0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (= ~pumpRunning~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 (<= ~waterLevel~0 1) .cse1 .cse6 .cse2) (and .cse7 .cse1 .cse6 .cse2) (and .cse0 .cse1 .cse2 .cse3 .cse8) (and .cse5 .cse1 .cse2 (= |ULTIMATE.start_main_~tmp~5#1| 1) .cse3) (and .cse0 .cse1 .cse2 (<= ~waterLevel~0 0) .cse8) (and .cse5 .cse7 .cse1 .cse2) (and .cse5 .cse2 (= 0 ~systemActive~0) .cse8) (and .cse7 .cse1 .cse2 .cse4)))) [2023-12-02 19:13:21,813 INFO L899 garLoopResultBuilder]: For program point L272(lines 272 278) no Hoare annotation was computed. [2023-12-02 19:13:21,813 INFO L899 garLoopResultBuilder]: For program point L272-1(lines 272 278) no Hoare annotation was computed. [2023-12-02 19:13:21,813 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-02 19:13:21,813 INFO L899 garLoopResultBuilder]: For program point L298(lines 297 344) no Hoare annotation was computed. [2023-12-02 19:13:21,813 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-02 19:13:21,813 INFO L899 garLoopResultBuilder]: For program point L327(lines 327 340) no Hoare annotation was computed. [2023-12-02 19:13:21,813 INFO L895 garLoopResultBuilder]: At program point L319(line 319) the Hoare annotation is: (let ((.cse8 (= ~methaneLevelCritical~0 0)) (.cse5 (= ~pumpRunning~0 0))) (let ((.cse0 (not .cse5)) (.cse6 (<= ~waterLevel~0 1)) (.cse7 (not .cse8)) (.cse9 (= ~waterLevel~0 1)) (.cse4 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse1 (= 2 ~waterLevel~0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse6 .cse2 .cse7 .cse3) (and .cse0 .cse8 .cse6 .cse2 .cse3 .cse4) (and .cse1 .cse2 .cse7 .cse3) (and .cse5 .cse2 .cse3 (= |ULTIMATE.start_main_~tmp~5#1| 1) .cse9) (and .cse5 .cse2 .cse3 (or (< ~waterLevel~0 1) .cse9) (= ~switchedOnBeforeTS~0 0)) (and .cse5 .cse1 .cse2 .cse3) (and .cse5 .cse3 (= 0 ~systemActive~0) .cse4) (and .cse1 .cse2 .cse3 (= ~pumpRunning~0 1))))) [2023-12-02 19:13:21,813 INFO L899 garLoopResultBuilder]: For program point L348(lines 287 352) no Hoare annotation was computed. [2023-12-02 19:13:21,813 INFO L899 garLoopResultBuilder]: For program point L307(lines 307 313) no Hoare annotation was computed. [2023-12-02 19:13:21,813 INFO L899 garLoopResultBuilder]: For program point L307-1(lines 307 313) no Hoare annotation was computed. [2023-12-02 19:13:21,814 INFO L895 garLoopResultBuilder]: At program point L274(line 274) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 (= ~pumpRunning~0 ~switchedOnBeforeTS~0) .cse2) (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2))) [2023-12-02 19:13:21,814 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 920 931) no Hoare annotation was computed. [2023-12-02 19:13:21,814 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 920 931) the Hoare annotation is: (let ((.cse9 (= ~methaneLevelCritical~0 0))) (let ((.cse2 (not .cse9)) (.cse3 (not (= ~pumpRunning~0 1))) (.cse6 (not (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (.cse8 (= 2 ~waterLevel~0)) (.cse10 (not (= |old(~waterLevel~0)| 2))) (.cse5 (< 1 |old(~waterLevel~0)|)) (.cse7 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse11 (not (= ~pumpRunning~0 0))) (.cse0 (not (= |old(~waterLevel~0)| 1))) (.cse1 (not (= 1 ~systemActive~0))) (.cse12 (= 0 ~systemActive~0)) (.cse4 (= ~waterLevel~0 1))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse1 .cse2 .cse6 .cse7) (or .cse8 .cse1 (and .cse9 .cse3) .cse10) (or .cse11 .cse6 .cse7 (not .cse12)) (or .cse11 .cse8 .cse1 .cse10 .cse12) (or .cse5 .cse11 .cse9 .cse1 .cse7 .cse12) (or .cse11 .cse0 .cse1 .cse12 .cse4)))) [2023-12-02 19:13:21,814 INFO L895 garLoopResultBuilder]: At program point L128(line 128) the Hoare annotation is: (let ((.cse0 (< 2 ~waterLevel~0)) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|)))) (and (or .cse0 (not (= |old(~pumpRunning~0)| 0)) .cse1 .cse2) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0) .cse2))) [2023-12-02 19:13:21,814 INFO L899 garLoopResultBuilder]: For program point L128-1(lines 109 133) no Hoare annotation was computed. [2023-12-02 19:13:21,814 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 109 133) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0))) (.cse3 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1 .cse2 (and (not (= ~waterLevel~0 1)) (<= 1 ~waterLevel~0)) .cse3) (or .cse0 .cse1 .cse2 (not (= 2 ~waterLevel~0)) .cse3) (or (< 2 ~waterLevel~0) .cse2 (not (= ~methaneLevelCritical~0 0)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0) .cse3))) [2023-12-02 19:13:21,814 INFO L895 garLoopResultBuilder]: At program point L123(line 123) the Hoare annotation is: (let ((.cse4 (= |old(~pumpRunning~0)| 0))) (let ((.cse0 (not .cse4)) (.cse3 (< 2 ~waterLevel~0)) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1 (= |processEnvironment__wrappee__methaneQuery_~tmp~0#1| 0) (and (not (= ~waterLevel~0 1)) (<= 1 ~waterLevel~0)) .cse2) (or .cse3 .cse0 (= ~pumpRunning~0 0) .cse1 .cse2) (or .cse3 .cse1 .cse4 (not (= ~methaneLevelCritical~0 0)) .cse2)))) [2023-12-02 19:13:21,814 INFO L899 garLoopResultBuilder]: For program point L117(lines 117 125) no Hoare annotation was computed. [2023-12-02 19:13:21,814 INFO L899 garLoopResultBuilder]: For program point L113(lines 113 130) no Hoare annotation was computed. [2023-12-02 19:13:21,814 INFO L895 garLoopResultBuilder]: At program point L173(line 173) the Hoare annotation is: (let ((.cse1 (= 2 ~waterLevel~0)) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse3 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|)))) (and (or .cse0 (not .cse1) .cse2 (= ~switchedOnBeforeTS~0 0) .cse3) (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) .cse0 (and (= ~pumpRunning~0 0) .cse1) .cse3) (or .cse0 (<= 2 ~waterLevel~0) .cse2 .cse3))) [2023-12-02 19:13:21,815 INFO L899 garLoopResultBuilder]: For program point L173-1(line 173) no Hoare annotation was computed. [2023-12-02 19:13:21,815 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 109 133) no Hoare annotation was computed. [2023-12-02 19:13:21,815 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 204 212) no Hoare annotation was computed. [2023-12-02 19:13:21,815 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 204 212) the Hoare annotation is: true [2023-12-02 19:13:21,815 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 193 203) no Hoare annotation was computed. [2023-12-02 19:13:21,815 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 193 203) the Hoare annotation is: true [2023-12-02 19:13:21,817 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:13:21,819 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 19:13:21,829 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 07:13:21 BoogieIcfgContainer [2023-12-02 19:13:21,829 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 19:13:21,829 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 19:13:21,829 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 19:13:21,829 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 19:13:21,830 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:12:17" (3/4) ... [2023-12-02 19:13:21,832 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 19:13:21,834 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2023-12-02 19:13:21,834 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2023-12-02 19:13:21,834 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2023-12-02 19:13:21,834 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2023-12-02 19:13:21,834 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2023-12-02 19:13:21,834 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2023-12-02 19:13:21,834 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2023-12-02 19:13:21,834 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2023-12-02 19:13:21,834 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2023-12-02 19:13:21,841 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 46 nodes and edges [2023-12-02 19:13:21,842 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-12-02 19:13:21,843 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-12-02 19:13:21,843 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 19:13:21,844 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 19:13:21,939 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e4baf7-7fae-40e5-b99f-980268c36ba8/bin/utaipan-verify-nQ1chXbOIh/witness.graphml [2023-12-02 19:13:21,939 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e4baf7-7fae-40e5-b99f-980268c36ba8/bin/utaipan-verify-nQ1chXbOIh/witness.yml [2023-12-02 19:13:21,939 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 19:13:21,940 INFO L158 Benchmark]: Toolchain (without parser) took 65450.76ms. Allocated memory was 153.1MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 112.8MB in the beginning and 505.3MB in the end (delta: -392.5MB). Peak memory consumption was 624.1MB. Max. memory is 16.1GB. [2023-12-02 19:13:21,940 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 153.1MB. Free memory was 125.7MB in the beginning and 125.6MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 19:13:21,940 INFO L158 Benchmark]: CACSL2BoogieTranslator took 380.76ms. Allocated memory is still 153.1MB. Free memory was 112.8MB in the beginning and 93.4MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-12-02 19:13:21,941 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.87ms. Allocated memory is still 153.1MB. Free memory was 92.9MB in the beginning and 90.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 19:13:21,941 INFO L158 Benchmark]: Boogie Preprocessor took 28.81ms. Allocated memory is still 153.1MB. Free memory was 90.8MB in the beginning and 89.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 19:13:21,941 INFO L158 Benchmark]: RCFGBuilder took 455.86ms. Allocated memory is still 153.1MB. Free memory was 89.2MB in the beginning and 63.0MB in the end (delta: 26.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-12-02 19:13:21,942 INFO L158 Benchmark]: TraceAbstraction took 64423.33ms. Allocated memory was 153.1MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 61.9MB in the beginning and 512.6MB in the end (delta: -450.7MB). Peak memory consumption was 663.9MB. Max. memory is 16.1GB. [2023-12-02 19:13:21,942 INFO L158 Benchmark]: Witness Printer took 109.99ms. Allocated memory is still 1.2GB. Free memory was 512.6MB in the beginning and 505.3MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-12-02 19:13:21,944 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 153.1MB. Free memory was 125.7MB in the beginning and 125.6MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 380.76ms. Allocated memory is still 153.1MB. Free memory was 112.8MB in the beginning and 93.4MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.87ms. Allocated memory is still 153.1MB. Free memory was 92.9MB in the beginning and 90.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.81ms. Allocated memory is still 153.1MB. Free memory was 90.8MB in the beginning and 89.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 455.86ms. Allocated memory is still 153.1MB. Free memory was 89.2MB in the beginning and 63.0MB in the end (delta: 26.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 64423.33ms. Allocated memory was 153.1MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 61.9MB in the beginning and 512.6MB in the end (delta: -450.7MB). Peak memory consumption was 663.9MB. Max. memory is 16.1GB. * Witness Printer took 109.99ms. Allocated memory is still 1.2GB. Free memory was 512.6MB in the beginning and 505.3MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. 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,"wsllib_check.i","") [49] - GenericResultAtLocation [Line: 58]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [58] - GenericResultAtLocation [Line: 283]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [283] - GenericResultAtLocation [Line: 353]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [353] - GenericResultAtLocation [Line: 454]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [454] - GenericResultAtLocation [Line: 820]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [820] - GenericResultAtLocation [Line: 855]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [855] - GenericResultAtLocation [Line: 905]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [905] * 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: 54]: 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 10 procedures, 72 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 64.4s, OverallIterations: 10, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 11.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 16.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3139 SdHoareTripleChecker+Valid, 4.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3105 mSDsluCounter, 5871 SdHoareTripleChecker+Invalid, 3.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4754 mSDsCounter, 1829 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7195 IncrementalHoareTripleChecker+Invalid, 9024 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1829 mSolverCounterUnsat, 1117 mSDtfsCounter, 7195 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1255 GetRequests, 808 SyntacticMatches, 13 SemanticMatches, 434 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19934 ImplicationChecksByTransitivity, 16.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2761occurred in iteration=8, InterpolantAutomatonStates: 309, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 10 MinimizatonAttempts, 1443 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 27 LocationsWithAnnotation, 4181 PreInvPairs, 4657 NumberOfFragments, 2583 HoareAnnotationTreeSize, 4181 FomulaSimplifications, 67358 FormulaSimplificationTreeSizeReduction, 2.5s HoareSimplificationTime, 27 FomulaSimplificationsInter, 87215 FormulaSimplificationTreeSizeReductionInter, 13.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 877 NumberOfCodeBlocks, 877 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1106 ConstructedInterpolants, 0 QuantifiedInterpolants, 2640 SizeOfPredicates, 21 NumberOfNonLiveVariables, 1377 ConjunctsInSsa, 60 ConjunctsInUnsatCore, 17 InterpolantComputations, 7 PerfectInterpolantSequences, 528/627 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: 365]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 297]: Loop Invariant Derived loop invariant: (((((((((((pumpRunning == 0) && (splverifierCounter == 0)) && (0 == systemActive)) && (switchedOnBeforeTS == 0)) || (((((pumpRunning == 0) && (waterLevel <= 1)) && (1 == systemActive)) && !((methaneLevelCritical == 0))) && (splverifierCounter == 0))) || ((((2 == waterLevel) && (1 == systemActive)) && !((methaneLevelCritical == 0))) && (splverifierCounter == 0))) || (((((methaneLevelCritical == 0) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel == 1)) && (pumpRunning == switchedOnBeforeTS))) || (((((pumpRunning == 0) && (1 == systemActive)) && (splverifierCounter == 0)) && (tmp == 1)) && (waterLevel == 1))) || (((((methaneLevelCritical == 0) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel <= 0)) && (pumpRunning == switchedOnBeforeTS))) || ((((pumpRunning == 0) && (2 == waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0))) || ((((2 == waterLevel) && (1 == systemActive)) && (splverifierCounter == 0)) && (pumpRunning == 1))) - InvariantResult [Line: 296]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 193]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-12-02 19:13:21,964 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e4baf7-7fae-40e5-b99f-980268c36ba8/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE