./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product48.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_b22a9a72-dc36-48e4-88cc-e45d75f69053/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22a9a72-dc36-48e4-88cc-e45d75f69053/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_b22a9a72-dc36-48e4-88cc-e45d75f69053/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22a9a72-dc36-48e4-88cc-e45d75f69053/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product48.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22a9a72-dc36-48e4-88cc-e45d75f69053/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_b22a9a72-dc36-48e4-88cc-e45d75f69053/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 ae2f7a85a5093ad80fd05f69a7d0bbcf9a510999a9154b6f2d8037f035f00930 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 13:44:05,382 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 13:44:05,461 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22a9a72-dc36-48e4-88cc-e45d75f69053/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 13:44:05,466 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 13:44:05,467 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 13:44:05,505 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 13:44:05,506 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 13:44:05,506 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 13:44:05,507 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 13:44:05,507 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 13:44:05,508 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 13:44:05,509 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 13:44:05,509 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 13:44:05,510 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 13:44:05,510 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 13:44:05,511 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 13:44:05,511 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 13:44:05,512 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 13:44:05,512 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 13:44:05,513 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 13:44:05,513 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 13:44:05,514 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 13:44:05,515 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 13:44:05,515 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 13:44:05,516 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 13:44:05,516 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 13:44:05,517 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 13:44:05,517 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 13:44:05,518 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 13:44:05,518 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 13:44:05,519 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 13:44:05,519 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 13:44:05,519 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 13:44:05,519 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 13:44:05,520 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 13:44:05,520 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 13:44:05,520 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 13:44:05,520 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:44:05,521 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 13:44:05,521 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 13:44:05,521 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 13:44:05,521 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 13:44:05,522 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 13:44:05,522 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 13:44:05,522 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 13:44:05,522 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 13:44:05,522 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 13:44:05,523 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_b22a9a72-dc36-48e4-88cc-e45d75f69053/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22a9a72-dc36-48e4-88cc-e45d75f69053/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ae2f7a85a5093ad80fd05f69a7d0bbcf9a510999a9154b6f2d8037f035f00930 [2023-12-02 13:44:05,737 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 13:44:05,783 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 13:44:05,786 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 13:44:05,787 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 13:44:05,788 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 13:44:05,789 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22a9a72-dc36-48e4-88cc-e45d75f69053/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/product-lines/minepump_spec1_product48.cil.c [2023-12-02 13:44:08,612 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 13:44:08,853 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 13:44:08,854 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22a9a72-dc36-48e4-88cc-e45d75f69053/sv-benchmarks/c/product-lines/minepump_spec1_product48.cil.c [2023-12-02 13:44:08,866 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22a9a72-dc36-48e4-88cc-e45d75f69053/bin/utaipan-verify-nQ1chXbOIh/data/d1f08da9c/a3172a6136824acba952fb6c89c491cb/FLAGd1feea581 [2023-12-02 13:44:08,878 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22a9a72-dc36-48e4-88cc-e45d75f69053/bin/utaipan-verify-nQ1chXbOIh/data/d1f08da9c/a3172a6136824acba952fb6c89c491cb [2023-12-02 13:44:08,881 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 13:44:08,883 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 13:44:08,884 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 13:44:08,884 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 13:44:08,890 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 13:44:08,891 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:44:08" (1/1) ... [2023-12-02 13:44:08,892 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@307757fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:08, skipping insertion in model container [2023-12-02 13:44:08,892 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:44:08" (1/1) ... [2023-12-02 13:44:08,937 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 13:44:09,199 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_b22a9a72-dc36-48e4-88cc-e45d75f69053/sv-benchmarks/c/product-lines/minepump_spec1_product48.cil.c[17123,17136] [2023-12-02 13:44:09,209 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:44:09,222 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 13:44:09,234 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] [2023-12-02 13:44:09,235 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [150] [2023-12-02 13:44:09,236 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [252] [2023-12-02 13:44:09,236 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [618] [2023-12-02 13:44:09,236 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [646] [2023-12-02 13:44:09,237 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [868] [2023-12-02 13:44:09,237 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [877] [2023-12-02 13:44:09,237 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [946] [2023-12-02 13:44:09,294 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_b22a9a72-dc36-48e4-88cc-e45d75f69053/sv-benchmarks/c/product-lines/minepump_spec1_product48.cil.c[17123,17136] [2023-12-02 13:44:09,298 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:44:09,321 INFO L206 MainTranslator]: Completed translation [2023-12-02 13:44:09,321 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:09 WrapperNode [2023-12-02 13:44:09,321 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 13:44:09,323 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 13:44:09,323 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 13:44:09,323 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 13:44:09,331 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:09" (1/1) ... [2023-12-02 13:44:09,347 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:09" (1/1) ... [2023-12-02 13:44:09,374 INFO L138 Inliner]: procedures = 56, calls = 102, calls flagged for inlining = 22, calls inlined = 19, statements flattened = 191 [2023-12-02 13:44:09,374 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 13:44:09,375 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 13:44:09,375 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 13:44:09,375 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 13:44:09,385 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:09" (1/1) ... [2023-12-02 13:44:09,386 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:09" (1/1) ... [2023-12-02 13:44:09,389 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:09" (1/1) ... [2023-12-02 13:44:09,389 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:09" (1/1) ... [2023-12-02 13:44:09,395 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:09" (1/1) ... [2023-12-02 13:44:09,400 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:09" (1/1) ... [2023-12-02 13:44:09,402 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:09" (1/1) ... [2023-12-02 13:44:09,403 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:09" (1/1) ... [2023-12-02 13:44:09,407 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 13:44:09,408 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 13:44:09,408 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 13:44:09,408 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 13:44:09,409 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:09" (1/1) ... [2023-12-02 13:44:09,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:44:09,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22a9a72-dc36-48e4-88cc-e45d75f69053/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:44:09,442 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22a9a72-dc36-48e4-88cc-e45d75f69053/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 13:44:09,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22a9a72-dc36-48e4-88cc-e45d75f69053/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 13:44:09,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 13:44:09,480 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-12-02 13:44:09,480 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-12-02 13:44:09,480 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-02 13:44:09,480 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-02 13:44:09,481 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-02 13:44:09,481 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-02 13:44:09,481 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-12-02 13:44:09,481 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-12-02 13:44:09,481 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-12-02 13:44:09,482 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-12-02 13:44:09,482 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2023-12-02 13:44:09,482 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2023-12-02 13:44:09,482 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-12-02 13:44:09,482 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-12-02 13:44:09,482 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-12-02 13:44:09,483 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-12-02 13:44:09,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 13:44:09,483 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-12-02 13:44:09,483 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-12-02 13:44:09,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 13:44:09,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 13:44:09,567 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 13:44:09,570 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 13:44:09,796 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 13:44:09,893 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 13:44:09,894 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-02 13:44:09,895 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:44:09 BoogieIcfgContainer [2023-12-02 13:44:09,895 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 13:44:09,898 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 13:44:09,899 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 13:44:09,901 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 13:44:09,901 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:44:08" (1/3) ... [2023-12-02 13:44:09,902 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26ddaf72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:44:09, skipping insertion in model container [2023-12-02 13:44:09,902 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:09" (2/3) ... [2023-12-02 13:44:09,902 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26ddaf72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:44:09, skipping insertion in model container [2023-12-02 13:44:09,902 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:44:09" (3/3) ... [2023-12-02 13:44:09,904 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product48.cil.c [2023-12-02 13:44:09,919 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 13:44:09,919 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 13:44:09,971 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 13:44:09,977 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;@47d05540, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 13:44:09,977 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 13:44:09,981 INFO L276 IsEmpty]: Start isEmpty. Operand has 71 states, 44 states have (on average 1.4090909090909092) internal successors, (62), 53 states have internal predecessors, (62), 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 13:44:09,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 13:44:09,989 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:44:09,990 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:44:09,990 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:44:09,995 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:44:09,995 INFO L85 PathProgramCache]: Analyzing trace with hash 451764533, now seen corresponding path program 1 times [2023-12-02 13:44:10,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:44:10,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073520634] [2023-12-02 13:44:10,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:44:10,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:44:10,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:44:10,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:44:10,166 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:44:10,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073520634] [2023-12-02 13:44:10,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073520634] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:44:10,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:44:10,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 13:44:10,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493785520] [2023-12-02 13:44:10,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:44:10,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 13:44:10,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:44:10,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 13:44:10,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 13:44:10,210 INFO L87 Difference]: Start difference. First operand has 71 states, 44 states have (on average 1.4090909090909092) internal successors, (62), 53 states have internal predecessors, (62), 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 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 13:44:10,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:44:10,280 INFO L93 Difference]: Finished difference Result 140 states and 189 transitions. [2023-12-02 13:44:10,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 13:44:10,283 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2023-12-02 13:44:10,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:44:10,292 INFO L225 Difference]: With dead ends: 140 [2023-12-02 13:44:10,292 INFO L226 Difference]: Without dead ends: 66 [2023-12-02 13:44:10,295 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 13:44:10,299 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 13:44:10,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 73 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 13:44:10,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2023-12-02 13:44:10,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2023-12-02 13:44:10,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 41 states have (on average 1.3170731707317074) internal successors, (54), 49 states have internal predecessors, (54), 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 13:44:10,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 85 transitions. [2023-12-02 13:44:10,341 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 85 transitions. Word has length 16 [2023-12-02 13:44:10,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:44:10,341 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 85 transitions. [2023-12-02 13:44:10,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 13:44:10,342 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 85 transitions. [2023-12-02 13:44:10,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-02 13:44:10,344 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:44:10,344 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:44:10,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 13:44:10,345 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:44:10,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:44:10,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1235459681, now seen corresponding path program 1 times [2023-12-02 13:44:10,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:44:10,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951955375] [2023-12-02 13:44:10,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:44:10,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:44:10,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:44:10,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:44:10,441 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:44:10,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951955375] [2023-12-02 13:44:10,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951955375] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:44:10,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:44:10,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:44:10,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421510678] [2023-12-02 13:44:10,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:44:10,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:44:10,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:44:10,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:44:10,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:44:10,446 INFO L87 Difference]: Start difference. First operand 66 states and 85 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 13:44:10,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:44:10,492 INFO L93 Difference]: Finished difference Result 104 states and 132 transitions. [2023-12-02 13:44:10,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:44:10,492 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2023-12-02 13:44:10,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:44:10,494 INFO L225 Difference]: With dead ends: 104 [2023-12-02 13:44:10,494 INFO L226 Difference]: Without dead ends: 58 [2023-12-02 13:44:10,495 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 13:44:10,497 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 14 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 13:44:10,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 102 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 13:44:10,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2023-12-02 13:44:10,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2023-12-02 13:44:10,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 36 states have (on average 1.3333333333333333) internal successors, (48), 44 states have internal predecessors, (48), 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 13:44:10,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 74 transitions. [2023-12-02 13:44:10,509 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 74 transitions. Word has length 17 [2023-12-02 13:44:10,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:44:10,510 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 74 transitions. [2023-12-02 13:44:10,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 13:44:10,510 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 74 transitions. [2023-12-02 13:44:10,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-02 13:44:10,511 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:44:10,512 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:44:10,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 13:44:10,512 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:44:10,513 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:44:10,513 INFO L85 PathProgramCache]: Analyzing trace with hash 919406999, now seen corresponding path program 1 times [2023-12-02 13:44:10,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:44:10,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442870303] [2023-12-02 13:44:10,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:44:10,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:44:10,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:44:10,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:44:10,598 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:44:10,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442870303] [2023-12-02 13:44:10,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442870303] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:44:10,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:44:10,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:44:10,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133265170] [2023-12-02 13:44:10,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:44:10,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:44:10,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:44:10,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:44:10,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:44:10,601 INFO L87 Difference]: Start difference. First operand 58 states and 74 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 13:44:10,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:44:10,676 INFO L93 Difference]: Finished difference Result 170 states and 219 transitions. [2023-12-02 13:44:10,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:44:10,677 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2023-12-02 13:44:10,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:44:10,680 INFO L225 Difference]: With dead ends: 170 [2023-12-02 13:44:10,680 INFO L226 Difference]: Without dead ends: 114 [2023-12-02 13:44:10,681 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 13:44:10,682 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 68 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 13:44:10,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 125 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 13:44:10,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2023-12-02 13:44:10,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 111. [2023-12-02 13:44:10,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 68 states have (on average 1.338235294117647) internal successors, (91), 83 states have internal predecessors, (91), 26 states have call successors, (26), 16 states have call predecessors, (26), 16 states have return successors, (26), 19 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-02 13:44:10,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 143 transitions. [2023-12-02 13:44:10,708 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 143 transitions. Word has length 20 [2023-12-02 13:44:10,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:44:10,708 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 143 transitions. [2023-12-02 13:44:10,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 13:44:10,709 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 143 transitions. [2023-12-02 13:44:10,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-02 13:44:10,710 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:44:10,711 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:44:10,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 13:44:10,711 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:44:10,712 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:44:10,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1931696497, now seen corresponding path program 1 times [2023-12-02 13:44:10,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:44:10,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784275937] [2023-12-02 13:44:10,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:44:10,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:44:10,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:44:10,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:44:10,828 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:44:10,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784275937] [2023-12-02 13:44:10,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784275937] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:44:10,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:44:10,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 13:44:10,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637442221] [2023-12-02 13:44:10,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:44:10,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 13:44:10,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:44:10,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 13:44:10,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 13:44:10,830 INFO L87 Difference]: Start difference. First operand 111 states and 143 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 13:44:10,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:44:10,936 INFO L93 Difference]: Finished difference Result 302 states and 395 transitions. [2023-12-02 13:44:10,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 13:44:10,937 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2023-12-02 13:44:10,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:44:10,940 INFO L225 Difference]: With dead ends: 302 [2023-12-02 13:44:10,941 INFO L226 Difference]: Without dead ends: 193 [2023-12-02 13:44:10,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 13:44:10,944 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 41 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 13:44:10,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 157 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 13:44:10,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2023-12-02 13:44:10,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 188. [2023-12-02 13:44:10,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 121 states have (on average 1.28099173553719) internal successors, (155), 136 states have internal predecessors, (155), 36 states have call successors, (36), 30 states have call predecessors, (36), 30 states have return successors, (44), 33 states have call predecessors, (44), 36 states have call successors, (44) [2023-12-02 13:44:10,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 235 transitions. [2023-12-02 13:44:10,990 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 235 transitions. Word has length 23 [2023-12-02 13:44:10,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:44:10,990 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 235 transitions. [2023-12-02 13:44:10,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 13:44:10,991 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 235 transitions. [2023-12-02 13:44:10,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-02 13:44:10,992 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:44:10,993 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] [2023-12-02 13:44:10,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 13:44:10,993 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:44:10,994 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:44:10,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1952271027, now seen corresponding path program 1 times [2023-12-02 13:44:10,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:44:10,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180696455] [2023-12-02 13:44:10,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:44:10,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:44:11,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:44:11,148 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 13:44:11,148 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:44:11,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180696455] [2023-12-02 13:44:11,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180696455] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:44:11,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:44:11,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 13:44:11,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791569729] [2023-12-02 13:44:11,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:44:11,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 13:44:11,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:44:11,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 13:44:11,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-02 13:44:11,151 INFO L87 Difference]: Start difference. First operand 188 states and 235 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-02 13:44:11,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:44:11,336 INFO L93 Difference]: Finished difference Result 554 states and 706 transitions. [2023-12-02 13:44:11,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 13:44:11,337 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 36 [2023-12-02 13:44:11,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:44:11,341 INFO L225 Difference]: With dead ends: 554 [2023-12-02 13:44:11,342 INFO L226 Difference]: Without dead ends: 368 [2023-12-02 13:44:11,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 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 13:44:11,344 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 51 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 13:44:11,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 257 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 13:44:11,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2023-12-02 13:44:11,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 356. [2023-12-02 13:44:11,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 231 states have (on average 1.2683982683982684) internal successors, (293), 256 states have internal predecessors, (293), 68 states have call successors, (68), 56 states have call predecessors, (68), 56 states have return successors, (84), 62 states have call predecessors, (84), 68 states have call successors, (84) [2023-12-02 13:44:11,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 445 transitions. [2023-12-02 13:44:11,393 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 445 transitions. Word has length 36 [2023-12-02 13:44:11,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:44:11,394 INFO L495 AbstractCegarLoop]: Abstraction has 356 states and 445 transitions. [2023-12-02 13:44:11,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-02 13:44:11,394 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 445 transitions. [2023-12-02 13:44:11,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-02 13:44:11,397 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:44:11,398 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] [2023-12-02 13:44:11,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 13:44:11,398 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:44:11,398 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:44:11,399 INFO L85 PathProgramCache]: Analyzing trace with hash 707102403, now seen corresponding path program 1 times [2023-12-02 13:44:11,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:44:11,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676482214] [2023-12-02 13:44:11,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:44:11,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:44:11,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:44:11,748 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 13:44:11,748 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:44:11,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676482214] [2023-12-02 13:44:11,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676482214] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:44:11,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:44:11,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-02 13:44:11,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96385463] [2023-12-02 13:44:11,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:44:11,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-02 13:44:11,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:44:11,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-02 13:44:11,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-12-02 13:44:11,751 INFO L87 Difference]: Start difference. First operand 356 states and 445 transitions. Second operand has 13 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 10 states have internal predecessors, (27), 4 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2023-12-02 13:44:12,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:44:12,680 INFO L93 Difference]: Finished difference Result 853 states and 1140 transitions. [2023-12-02 13:44:12,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-02 13:44:12,681 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 10 states have internal predecessors, (27), 4 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) Word has length 39 [2023-12-02 13:44:12,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:44:12,687 INFO L225 Difference]: With dead ends: 853 [2023-12-02 13:44:12,687 INFO L226 Difference]: Without dead ends: 667 [2023-12-02 13:44:12,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=267, Invalid=993, Unknown=0, NotChecked=0, Total=1260 [2023-12-02 13:44:12,690 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 271 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-02 13:44:12,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 343 Invalid, 658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [164 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-02 13:44:12,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2023-12-02 13:44:12,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 555. [2023-12-02 13:44:12,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 365 states have (on average 1.2547945205479452) internal successors, (458), 399 states have internal predecessors, (458), 100 states have call successors, (100), 74 states have call predecessors, (100), 89 states have return successors, (145), 100 states have call predecessors, (145), 100 states have call successors, (145) [2023-12-02 13:44:12,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 703 transitions. [2023-12-02 13:44:12,783 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 703 transitions. Word has length 39 [2023-12-02 13:44:12,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:44:12,784 INFO L495 AbstractCegarLoop]: Abstraction has 555 states and 703 transitions. [2023-12-02 13:44:12,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 10 states have internal predecessors, (27), 4 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2023-12-02 13:44:12,784 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 703 transitions. [2023-12-02 13:44:12,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-02 13:44:12,789 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:44:12,790 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:44:12,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-02 13:44:12,790 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:44:12,791 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:44:12,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1780660723, now seen corresponding path program 1 times [2023-12-02 13:44:12,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:44:12,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622994181] [2023-12-02 13:44:12,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:44:12,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:44:12,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:44:12,851 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-02 13:44:12,851 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:44:12,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622994181] [2023-12-02 13:44:12,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622994181] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:44:12,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:44:12,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 13:44:12,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574643192] [2023-12-02 13:44:12,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:44:12,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 13:44:12,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:44:12,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 13:44:12,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 13:44:12,854 INFO L87 Difference]: Start difference. First operand 555 states and 703 transitions. Second operand has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2023-12-02 13:44:12,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:44:12,999 INFO L93 Difference]: Finished difference Result 872 states and 1101 transitions. [2023-12-02 13:44:13,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 13:44:13,000 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 61 [2023-12-02 13:44:13,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:44:13,003 INFO L225 Difference]: With dead ends: 872 [2023-12-02 13:44:13,003 INFO L226 Difference]: Without dead ends: 319 [2023-12-02 13:44:13,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 13:44:13,006 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 92 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 13:44:13,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 126 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 13:44:13,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2023-12-02 13:44:13,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 315. [2023-12-02 13:44:13,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 210 states have (on average 1.2380952380952381) internal successors, (260), 229 states have internal predecessors, (260), 55 states have call successors, (55), 42 states have call predecessors, (55), 49 states have return successors, (74), 56 states have call predecessors, (74), 55 states have call successors, (74) [2023-12-02 13:44:13,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 389 transitions. [2023-12-02 13:44:13,043 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 389 transitions. Word has length 61 [2023-12-02 13:44:13,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:44:13,044 INFO L495 AbstractCegarLoop]: Abstraction has 315 states and 389 transitions. [2023-12-02 13:44:13,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2023-12-02 13:44:13,044 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 389 transitions. [2023-12-02 13:44:13,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-02 13:44:13,047 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:44:13,047 INFO L195 NwaCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:44:13,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-02 13:44:13,047 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:44:13,047 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:44:13,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1942318531, now seen corresponding path program 1 times [2023-12-02 13:44:13,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:44:13,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334420291] [2023-12-02 13:44:13,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:44:13,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:44:13,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:44:13,218 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-02 13:44:13,218 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:44:13,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334420291] [2023-12-02 13:44:13,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334420291] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:44:13,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:44:13,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-02 13:44:13,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048184474] [2023-12-02 13:44:13,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:44:13,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-02 13:44:13,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:44:13,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-02 13:44:13,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-02 13:44:13,221 INFO L87 Difference]: Start difference. First operand 315 states and 389 transitions. Second operand has 10 states, 8 states have (on average 5.0) internal successors, (40), 7 states have internal predecessors, (40), 2 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (11), 5 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-02 13:44:13,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:44:13,521 INFO L93 Difference]: Finished difference Result 751 states and 948 transitions. [2023-12-02 13:44:13,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-02 13:44:13,522 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 5.0) internal successors, (40), 7 states have internal predecessors, (40), 2 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (11), 5 states have call predecessors, (11), 2 states have call successors, (11) Word has length 76 [2023-12-02 13:44:13,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:44:13,523 INFO L225 Difference]: With dead ends: 751 [2023-12-02 13:44:13,523 INFO L226 Difference]: Without dead ends: 0 [2023-12-02 13:44:13,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2023-12-02 13:44:13,527 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 59 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 13:44:13,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 334 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 13:44:13,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-02 13:44:13,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-02 13:44:13,528 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 13:44:13,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-02 13:44:13,529 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 76 [2023-12-02 13:44:13,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:44:13,529 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-02 13:44:13,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 5.0) internal successors, (40), 7 states have internal predecessors, (40), 2 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (11), 5 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-02 13:44:13,529 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-02 13:44:13,529 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 13:44:13,532 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 13:44:13,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-02 13:44:13,535 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-02 13:44:14,609 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 762 769) no Hoare annotation was computed. [2023-12-02 13:44:14,610 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 762 769) the Hoare annotation is: (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= 1 ~systemActive~0))) [2023-12-02 13:44:14,610 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 678 684) no Hoare annotation was computed. [2023-12-02 13:44:14,610 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 678 684) the Hoare annotation is: true [2023-12-02 13:44:14,611 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 83 94) the Hoare annotation is: (let ((.cse0 (not (= |old(~methaneLevelCritical~0)| 0))) (.cse1 (= ~methaneLevelCritical~0 0))) (and (or .cse0 (not (= ~pumpRunning~0 0)) .cse1 (not (= 0 ~systemActive~0))) (or .cse0 .cse1 (not (= 1 ~systemActive~0))))) [2023-12-02 13:44:14,611 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 83 94) no Hoare annotation was computed. [2023-12-02 13:44:14,611 INFO L895 garLoopResultBuilder]: At program point L726(line 726) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 0)))) (and (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~methaneLevelCritical~0 0) (= |timeShift_processEnvironment_~tmp~6#1| 0)) .cse0) (or .cse1 .cse0) (or .cse1 (not (= 0 ~systemActive~0))))) [2023-12-02 13:44:14,611 INFO L895 garLoopResultBuilder]: At program point L627(line 627) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0))) (and (or .cse0 (= ~methaneLevelCritical~0 0) (not (= 1 ~systemActive~0))) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (= 0 ~systemActive~0))))) [2023-12-02 13:44:14,612 INFO L895 garLoopResultBuilder]: At program point L722(line 722) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift_processEnvironment_~tmp~6#1| ~methaneLevelCritical~0))) (or .cse0 (and .cse1 (not (= ~methaneLevelCritical~0 0)))) (or .cse1 (not (= 0 ~systemActive~0))))) [2023-12-02 13:44:14,612 INFO L899 garLoopResultBuilder]: For program point L627-1(line 627) no Hoare annotation was computed. [2023-12-02 13:44:14,612 INFO L895 garLoopResultBuilder]: At program point L718(line 718) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0) (or .cse1 .cse0) (or .cse1 (not (= 0 ~systemActive~0))))) [2023-12-02 13:44:14,612 INFO L899 garLoopResultBuilder]: For program point L718-1(line 718) no Hoare annotation was computed. [2023-12-02 13:44:14,613 INFO L895 garLoopResultBuilder]: At program point L731(line 731) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| 0))) (and (or (not (= 1 ~systemActive~0)) (and (= ~pumpRunning~0 0) .cse0)) (or (not .cse0) (not (= 0 ~systemActive~0))))) [2023-12-02 13:44:14,613 INFO L899 garLoopResultBuilder]: For program point L731-1(lines 712 736) no Hoare annotation was computed. [2023-12-02 13:44:14,613 INFO L899 garLoopResultBuilder]: For program point L665-1(lines 665 671) no Hoare annotation was computed. [2023-12-02 13:44:14,613 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 654 677) the Hoare annotation is: (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= 0 ~systemActive~0))) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= 1 ~systemActive~0)))) [2023-12-02 13:44:14,613 INFO L899 garLoopResultBuilder]: For program point L633(lines 633 639) no Hoare annotation was computed. [2023-12-02 13:44:14,613 INFO L899 garLoopResultBuilder]: For program point L629(lines 629 642) no Hoare annotation was computed. [2023-12-02 13:44:14,614 INFO L899 garLoopResultBuilder]: For program point L629-1(lines 621 645) no Hoare annotation was computed. [2023-12-02 13:44:14,614 INFO L899 garLoopResultBuilder]: For program point L658-1(lines 657 676) no Hoare annotation was computed. [2023-12-02 13:44:14,614 INFO L899 garLoopResultBuilder]: For program point L720(lines 720 728) no Hoare annotation was computed. [2023-12-02 13:44:14,614 INFO L899 garLoopResultBuilder]: For program point L716(lines 716 733) no Hoare annotation was computed. [2023-12-02 13:44:14,614 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 654 677) no Hoare annotation was computed. [2023-12-02 13:44:14,614 INFO L899 garLoopResultBuilder]: For program point L873(line 873) no Hoare annotation was computed. [2023-12-02 13:44:14,615 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 873) no Hoare annotation was computed. [2023-12-02 13:44:14,615 INFO L902 garLoopResultBuilder]: At program point L163-2(lines 163 177) the Hoare annotation is: true [2023-12-02 13:44:14,615 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 153 182) no Hoare annotation was computed. [2023-12-02 13:44:14,615 INFO L902 garLoopResultBuilder]: At program point L159(line 159) the Hoare annotation is: true [2023-12-02 13:44:14,615 INFO L899 garLoopResultBuilder]: For program point L159-1(line 159) no Hoare annotation was computed. [2023-12-02 13:44:14,615 INFO L899 garLoopResultBuilder]: For program point L178(lines 153 182) no Hoare annotation was computed. [2023-12-02 13:44:14,616 INFO L899 garLoopResultBuilder]: For program point L174(line 174) no Hoare annotation was computed. [2023-12-02 13:44:14,616 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 153 182) the Hoare annotation is: true [2023-12-02 13:44:14,616 INFO L899 garLoopResultBuilder]: For program point L167(lines 167 171) no Hoare annotation was computed. [2023-12-02 13:44:14,616 INFO L902 garLoopResultBuilder]: At program point L167-1(lines 167 171) the Hoare annotation is: true [2023-12-02 13:44:14,616 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 95 103) the Hoare annotation is: true [2023-12-02 13:44:14,616 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 95 103) no Hoare annotation was computed. [2023-12-02 13:44:14,617 INFO L899 garLoopResultBuilder]: For program point L898-1(lines 898 904) no Hoare annotation was computed. [2023-12-02 13:44:14,617 INFO L899 garLoopResultBuilder]: For program point L849(lines 849 855) no Hoare annotation was computed. [2023-12-02 13:44:14,617 INFO L899 garLoopResultBuilder]: For program point L849-1(lines 849 855) no Hoare annotation was computed. [2023-12-02 13:44:14,617 INFO L899 garLoopResultBuilder]: For program point L239(lines 239 246) no Hoare annotation was computed. [2023-12-02 13:44:14,617 INFO L899 garLoopResultBuilder]: For program point L941(lines 878 945) no Hoare annotation was computed. [2023-12-02 13:44:14,617 INFO L899 garLoopResultBuilder]: For program point L239-2(lines 239 246) no Hoare annotation was computed. [2023-12-02 13:44:14,618 INFO L899 garLoopResultBuilder]: For program point L908(lines 908 914) no Hoare annotation was computed. [2023-12-02 13:44:14,618 INFO L899 garLoopResultBuilder]: For program point L908-1(lines 908 914) no Hoare annotation was computed. [2023-12-02 13:44:14,618 INFO L895 garLoopResultBuilder]: At program point L900(line 900) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= 1 ~systemActive~0) .cse0 (or .cse1 (= ~methaneLevelCritical~0 0))) (and .cse1 .cse0 (= 0 ~systemActive~0)))) [2023-12-02 13:44:14,618 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-02 13:44:14,618 INFO L895 garLoopResultBuilder]: At program point L851(line 851) the Hoare annotation is: (and (= 1 ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2023-12-02 13:44:14,619 INFO L895 garLoopResultBuilder]: At program point L938(lines 887 939) the Hoare annotation is: false [2023-12-02 13:44:14,619 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-02 13:44:14,619 INFO L899 garLoopResultBuilder]: For program point L926(lines 926 932) no Hoare annotation was computed. [2023-12-02 13:44:14,619 INFO L895 garLoopResultBuilder]: At program point L926-2(lines 918 933) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= 1 ~systemActive~0) .cse0) (and (= ~pumpRunning~0 0) .cse0 (= 0 ~systemActive~0)))) [2023-12-02 13:44:14,619 INFO L899 garLoopResultBuilder]: For program point L889(lines 888 937) no Hoare annotation was computed. [2023-12-02 13:44:14,619 INFO L899 garLoopResultBuilder]: For program point L918(lines 918 933) no Hoare annotation was computed. [2023-12-02 13:44:14,619 INFO L895 garLoopResultBuilder]: At program point L910(line 910) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= 1 ~systemActive~0) .cse0) (and (= ~pumpRunning~0 0) .cse0 (= 0 ~systemActive~0)))) [2023-12-02 13:44:14,619 INFO L895 garLoopResultBuilder]: At program point L935(lines 888 937) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= 1 ~systemActive~0) .cse0 (or .cse1 (= ~methaneLevelCritical~0 0))) (and .cse1 .cse0 (= 0 ~systemActive~0)))) [2023-12-02 13:44:14,619 INFO L899 garLoopResultBuilder]: For program point L898(lines 898 904) no Hoare annotation was computed. [2023-12-02 13:44:14,620 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 71 82) no Hoare annotation was computed. [2023-12-02 13:44:14,620 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 71 82) the Hoare annotation is: true [2023-12-02 13:44:14,620 INFO L895 garLoopResultBuilder]: At program point L700(line 700) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| 0)) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or (not .cse1) (= ~pumpRunning~0 0) .cse0))) [2023-12-02 13:44:14,620 INFO L899 garLoopResultBuilder]: For program point L694(lines 694 702) no Hoare annotation was computed. [2023-12-02 13:44:14,620 INFO L899 garLoopResultBuilder]: For program point L690(lines 690 707) no Hoare annotation was computed. [2023-12-02 13:44:14,620 INFO L895 garLoopResultBuilder]: At program point L750(line 750) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| 0)) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or (not .cse1) (= ~pumpRunning~0 0) .cse0))) [2023-12-02 13:44:14,620 INFO L899 garLoopResultBuilder]: For program point L750-1(line 750) no Hoare annotation was computed. [2023-12-02 13:44:14,621 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 686 710) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (= ~methaneLevelCritical~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0))) [2023-12-02 13:44:14,621 INFO L895 garLoopResultBuilder]: At program point L705(line 705) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (= ~methaneLevelCritical~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) .cse0))) [2023-12-02 13:44:14,621 INFO L899 garLoopResultBuilder]: For program point L705-1(lines 686 710) no Hoare annotation was computed. [2023-12-02 13:44:14,621 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 686 710) no Hoare annotation was computed. [2023-12-02 13:44:14,621 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 770 780) no Hoare annotation was computed. [2023-12-02 13:44:14,621 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 770 780) the Hoare annotation is: true [2023-12-02 13:44:14,621 INFO L902 garLoopResultBuilder]: At program point L775(line 775) the Hoare annotation is: true [2023-12-02 13:44:14,621 INFO L899 garLoopResultBuilder]: For program point L775-1(line 775) no Hoare annotation was computed. [2023-12-02 13:44:14,624 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:44:14,627 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 13:44:14,640 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 01:44:14 BoogieIcfgContainer [2023-12-02 13:44:14,640 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 13:44:14,641 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 13:44:14,641 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 13:44:14,641 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 13:44:14,641 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:44:09" (3/4) ... [2023-12-02 13:44:14,643 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 13:44:14,647 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2023-12-02 13:44:14,647 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2023-12-02 13:44:14,647 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2023-12-02 13:44:14,647 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2023-12-02 13:44:14,647 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2023-12-02 13:44:14,648 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2023-12-02 13:44:14,648 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2023-12-02 13:44:14,648 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2023-12-02 13:44:14,648 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2023-12-02 13:44:14,657 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 43 nodes and edges [2023-12-02 13:44:14,658 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-12-02 13:44:14,659 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-12-02 13:44:14,659 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 13:44:14,660 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 13:44:14,689 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!((\old(pumpRunning) == 0)) || (pumpRunning == 0)) || !((0 == systemActive))) && ((pumpRunning == \old(pumpRunning)) || !((1 == systemActive)))) [2023-12-02 13:44:14,722 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!((\old(pumpRunning) == 0)) || (pumpRunning == 0)) || !((0 == systemActive))) && ((pumpRunning == \old(pumpRunning)) || !((1 == systemActive)))) [2023-12-02 13:44:14,764 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22a9a72-dc36-48e4-88cc-e45d75f69053/bin/utaipan-verify-nQ1chXbOIh/witness.graphml [2023-12-02 13:44:14,764 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22a9a72-dc36-48e4-88cc-e45d75f69053/bin/utaipan-verify-nQ1chXbOIh/witness.yml [2023-12-02 13:44:14,764 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 13:44:14,765 INFO L158 Benchmark]: Toolchain (without parser) took 5882.60ms. Allocated memory was 169.9MB in the beginning and 205.5MB in the end (delta: 35.7MB). Free memory was 136.7MB in the beginning and 65.4MB in the end (delta: 71.3MB). Peak memory consumption was 108.0MB. Max. memory is 16.1GB. [2023-12-02 13:44:14,765 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 117.4MB. Free memory is still 91.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 13:44:14,766 INFO L158 Benchmark]: CACSL2BoogieTranslator took 437.70ms. Allocated memory is still 169.9MB. Free memory was 136.7MB in the beginning and 117.2MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-12-02 13:44:14,766 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.65ms. Allocated memory is still 169.9MB. Free memory was 117.2MB in the beginning and 115.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 13:44:14,767 INFO L158 Benchmark]: Boogie Preprocessor took 31.99ms. Allocated memory is still 169.9MB. Free memory was 115.1MB in the beginning and 113.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 13:44:14,767 INFO L158 Benchmark]: RCFGBuilder took 487.70ms. Allocated memory is still 169.9MB. Free memory was 113.2MB in the beginning and 87.5MB in the end (delta: 25.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-12-02 13:44:14,768 INFO L158 Benchmark]: TraceAbstraction took 4741.55ms. Allocated memory was 169.9MB in the beginning and 205.5MB in the end (delta: 35.7MB). Free memory was 86.9MB in the beginning and 72.7MB in the end (delta: 14.2MB). Peak memory consumption was 70.5MB. Max. memory is 16.1GB. [2023-12-02 13:44:14,768 INFO L158 Benchmark]: Witness Printer took 123.93ms. Allocated memory is still 205.5MB. Free memory was 72.7MB in the beginning and 65.4MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-12-02 13:44:14,770 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 117.4MB. Free memory is still 91.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 437.70ms. Allocated memory is still 169.9MB. Free memory was 136.7MB in the beginning and 117.2MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.65ms. Allocated memory is still 169.9MB. Free memory was 117.2MB in the beginning and 115.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.99ms. Allocated memory is still 169.9MB. Free memory was 115.1MB in the beginning and 113.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 487.70ms. Allocated memory is still 169.9MB. Free memory was 113.2MB in the beginning and 87.5MB in the end (delta: 25.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 4741.55ms. Allocated memory was 169.9MB in the beginning and 205.5MB in the end (delta: 35.7MB). Free memory was 86.9MB in the beginning and 72.7MB in the end (delta: 14.2MB). Peak memory consumption was 70.5MB. Max. memory is 16.1GB. * Witness Printer took 123.93ms. Allocated memory is still 205.5MB. Free memory was 72.7MB in the beginning and 65.4MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] - GenericResultAtLocation [Line: 150]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [150] - GenericResultAtLocation [Line: 252]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [252] - GenericResultAtLocation [Line: 618]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [618] - GenericResultAtLocation [Line: 646]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [646] - GenericResultAtLocation [Line: 868]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [868] - GenericResultAtLocation [Line: 877]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [877] - GenericResultAtLocation [Line: 946]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [946] * 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: 873]: 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, 71 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.7s, OverallIterations: 8, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 614 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 596 mSDsluCounter, 1517 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1026 mSDsCounter, 184 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1145 IncrementalHoareTripleChecker+Invalid, 1329 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 184 mSolverCounterUnsat, 491 mSDtfsCounter, 1145 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 85 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 304 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=555occurred in iteration=6, InterpolantAutomatonStates: 69, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 8 MinimizatonAttempts, 136 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 27 LocationsWithAnnotation, 765 PreInvPairs, 836 NumberOfFragments, 401 HoareAnnotationTreeSize, 765 FomulaSimplifications, 1829 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 27 FomulaSimplificationsInter, 2933 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 288 NumberOfCodeBlocks, 288 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 280 ConstructedInterpolants, 0 QuantifiedInterpolants, 513 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 61/61 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: 163]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 888]: Loop Invariant Derived loop invariant: ((((1 == systemActive) && (splverifierCounter == 0)) && ((pumpRunning == 0) || (methaneLevelCritical == 0))) || (((pumpRunning == 0) && (splverifierCounter == 0)) && (0 == systemActive))) - InvariantResult [Line: 887]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 654]: Loop Invariant Derived loop invariant: (((!((\old(pumpRunning) == 0)) || (pumpRunning == 0)) || !((0 == systemActive))) && ((pumpRunning == \old(pumpRunning)) || !((1 == systemActive)))) RESULT: Ultimate proved your program to be correct! [2023-12-02 13:44:14,788 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22a9a72-dc36-48e4-88cc-e45d75f69053/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE