./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product33.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_4159113d-f5bf-4cbd-82dc-bb8137b332d1/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4159113d-f5bf-4cbd-82dc-bb8137b332d1/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4159113d-f5bf-4cbd-82dc-bb8137b332d1/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4159113d-f5bf-4cbd-82dc-bb8137b332d1/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product33.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4159113d-f5bf-4cbd-82dc-bb8137b332d1/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4159113d-f5bf-4cbd-82dc-bb8137b332d1/bin/utaipan-verify-t7M7D8N6sZ --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 fff07e5b9817da9e6fd154070162cff001ebe527349ae31a2f1e574ef0fb9f98 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:16:51,285 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:16:51,435 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4159113d-f5bf-4cbd-82dc-bb8137b332d1/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 05:16:51,443 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:16:51,444 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:16:51,490 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:16:51,491 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:16:51,492 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:16:51,493 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:16:51,499 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:16:51,500 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:16:51,501 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:16:51,502 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:16:51,504 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:16:51,504 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:16:51,505 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:16:51,505 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:16:51,506 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:16:51,507 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:16:51,507 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:16:51,508 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:16:51,509 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:16:51,510 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:16:51,511 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:16:51,511 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:16:51,512 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:16:51,513 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:16:51,513 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:16:51,514 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:16:51,514 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:16:51,516 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:16:51,516 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:16:51,516 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:16:51,517 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:16:51,517 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:16:51,517 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:16:51,518 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:16:51,518 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:16:51,518 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:16:51,519 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:16:51,519 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:16:51,520 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:16:51,520 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:16:51,520 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:16:51,521 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:16:51,521 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_4159113d-f5bf-4cbd-82dc-bb8137b332d1/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4159113d-f5bf-4cbd-82dc-bb8137b332d1/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fff07e5b9817da9e6fd154070162cff001ebe527349ae31a2f1e574ef0fb9f98 [2023-11-19 05:16:51,848 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:16:51,877 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:16:51,881 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:16:51,882 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:16:51,883 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:16:51,886 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4159113d-f5bf-4cbd-82dc-bb8137b332d1/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/product-lines/minepump_spec5_product33.cil.c [2023-11-19 05:16:55,426 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:16:55,803 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:16:55,804 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4159113d-f5bf-4cbd-82dc-bb8137b332d1/sv-benchmarks/c/product-lines/minepump_spec5_product33.cil.c [2023-11-19 05:16:55,822 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4159113d-f5bf-4cbd-82dc-bb8137b332d1/bin/utaipan-verify-t7M7D8N6sZ/data/ae4dda016/1348d47423c942258c43d5f7515b8a9e/FLAG11df3d7a9 [2023-11-19 05:16:55,843 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4159113d-f5bf-4cbd-82dc-bb8137b332d1/bin/utaipan-verify-t7M7D8N6sZ/data/ae4dda016/1348d47423c942258c43d5f7515b8a9e [2023-11-19 05:16:55,851 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:16:55,853 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:16:55,858 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:16:55,858 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:16:55,865 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:16:55,866 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:16:55" (1/1) ... [2023-11-19 05:16:55,867 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74f3d00c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:55, skipping insertion in model container [2023-11-19 05:16:55,868 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:16:55" (1/1) ... [2023-11-19 05:16:55,929 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:16:56,244 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_4159113d-f5bf-4cbd-82dc-bb8137b332d1/sv-benchmarks/c/product-lines/minepump_spec5_product33.cil.c[16170,16183] [2023-11-19 05:16:56,257 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:16:56,282 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:16:56,296 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] [2023-11-19 05:16:56,298 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [415] [2023-11-19 05:16:56,299 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [484] [2023-11-19 05:16:56,299 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [649] [2023-11-19 05:16:56,300 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [687] [2023-11-19 05:16:56,300 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [785] [2023-11-19 05:16:56,300 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [794] [2023-11-19 05:16:56,301 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [889] [2023-11-19 05:16:56,441 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_4159113d-f5bf-4cbd-82dc-bb8137b332d1/sv-benchmarks/c/product-lines/minepump_spec5_product33.cil.c[16170,16183] [2023-11-19 05:16:56,460 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:16:56,489 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:16:56,490 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:56 WrapperNode [2023-11-19 05:16:56,490 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:16:56,492 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:16:56,492 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:16:56,493 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:16:56,502 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:56" (1/1) ... [2023-11-19 05:16:56,534 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:56" (1/1) ... [2023-11-19 05:16:56,578 INFO L138 Inliner]: procedures = 54, calls = 96, calls flagged for inlining = 22, calls inlined = 18, statements flattened = 175 [2023-11-19 05:16:56,579 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:16:56,580 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:16:56,580 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:16:56,581 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:16:56,592 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:56" (1/1) ... [2023-11-19 05:16:56,593 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:56" (1/1) ... [2023-11-19 05:16:56,610 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:56" (1/1) ... [2023-11-19 05:16:56,613 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:56" (1/1) ... [2023-11-19 05:16:56,619 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:56" (1/1) ... [2023-11-19 05:16:56,624 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:56" (1/1) ... [2023-11-19 05:16:56,626 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:56" (1/1) ... [2023-11-19 05:16:56,628 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:56" (1/1) ... [2023-11-19 05:16:56,632 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:16:56,633 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:16:56,633 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:16:56,633 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:16:56,635 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:56" (1/1) ... [2023-11-19 05:16:56,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:16:56,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4159113d-f5bf-4cbd-82dc-bb8137b332d1/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:16:56,676 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4159113d-f5bf-4cbd-82dc-bb8137b332d1/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:16:56,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4159113d-f5bf-4cbd-82dc-bb8137b332d1/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:16:56,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:16:56,736 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-11-19 05:16:56,737 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-11-19 05:16:56,737 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-19 05:16:56,737 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-19 05:16:56,737 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-19 05:16:56,738 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-19 05:16:56,738 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-19 05:16:56,738 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-19 05:16:56,739 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-11-19 05:16:56,740 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-11-19 05:16:56,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:16:56,741 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-19 05:16:56,741 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-19 05:16:56,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:16:56,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:16:56,874 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:16:56,878 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:16:57,241 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:16:57,474 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:16:57,476 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 05:16:57,482 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:16:57 BoogieIcfgContainer [2023-11-19 05:16:57,482 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:16:57,485 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:16:57,486 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:16:57,490 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:16:57,490 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:16:55" (1/3) ... [2023-11-19 05:16:57,491 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3124d718 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:16:57, skipping insertion in model container [2023-11-19 05:16:57,491 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:56" (2/3) ... [2023-11-19 05:16:57,492 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3124d718 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:16:57, skipping insertion in model container [2023-11-19 05:16:57,492 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:16:57" (3/3) ... [2023-11-19 05:16:57,494 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product33.cil.c [2023-11-19 05:16:57,517 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:16:57,518 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:16:57,581 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:16:57,589 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;@499a510d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:16:57,590 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:16:57,595 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 39 states have internal predecessors, (47), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-19 05:16:57,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-19 05:16:57,607 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:16:57,608 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:16:57,608 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:16:57,615 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:16:57,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1227650562, now seen corresponding path program 1 times [2023-11-19 05:16:57,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:16:57,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11788944] [2023-11-19 05:16:57,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:16:57,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:16:57,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:16:57,861 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 05:16:57,862 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:16:57,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11788944] [2023-11-19 05:16:57,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11788944] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:16:57,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:16:57,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:16:57,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794206991] [2023-11-19 05:16:57,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:16:57,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 05:16:57,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:16:57,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 05:16:57,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:16:57,920 INFO L87 Difference]: Start difference. First operand has 51 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 39 states have internal predecessors, (47), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 05:16:58,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:16:58,008 INFO L93 Difference]: Finished difference Result 100 states and 135 transitions. [2023-11-19 05:16:58,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 05:16:58,011 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2023-11-19 05:16:58,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:16:58,021 INFO L225 Difference]: With dead ends: 100 [2023-11-19 05:16:58,021 INFO L226 Difference]: Without dead ends: 46 [2023-11-19 05:16:58,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:16:58,029 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:16:58,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 49 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:16:58,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2023-11-19 05:16:58,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2023-11-19 05:16:58,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 30 states have (on average 1.3) internal successors, (39), 35 states have internal predecessors, (39), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 05:16:58,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 58 transitions. [2023-11-19 05:16:58,082 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 58 transitions. Word has length 21 [2023-11-19 05:16:58,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:16:58,083 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 58 transitions. [2023-11-19 05:16:58,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 05:16:58,083 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 58 transitions. [2023-11-19 05:16:58,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-19 05:16:58,086 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:16:58,087 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:16:58,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 05:16:58,087 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:16:58,088 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:16:58,088 INFO L85 PathProgramCache]: Analyzing trace with hash 244797496, now seen corresponding path program 1 times [2023-11-19 05:16:58,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:16:58,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490921167] [2023-11-19 05:16:58,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:16:58,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:16:58,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:16:58,259 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 05:16:58,260 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:16:58,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490921167] [2023-11-19 05:16:58,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490921167] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:16:58,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:16:58,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:16:58,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837032274] [2023-11-19 05:16:58,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:16:58,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:16:58,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:16:58,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:16:58,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:16:58,266 INFO L87 Difference]: Start difference. First operand 46 states and 58 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 05:16:58,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:16:58,312 INFO L93 Difference]: Finished difference Result 69 states and 87 transitions. [2023-11-19 05:16:58,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:16:58,313 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2023-11-19 05:16:58,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:16:58,315 INFO L225 Difference]: With dead ends: 69 [2023-11-19 05:16:58,315 INFO L226 Difference]: Without dead ends: 38 [2023-11-19 05:16:58,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:16:58,318 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 7 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:16:58,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 61 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:16:58,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-11-19 05:16:58,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2023-11-19 05:16:58,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 25 states have (on average 1.32) internal successors, (33), 30 states have internal predecessors, (33), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-19 05:16:58,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 47 transitions. [2023-11-19 05:16:58,330 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 47 transitions. Word has length 22 [2023-11-19 05:16:58,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:16:58,331 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 47 transitions. [2023-11-19 05:16:58,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 05:16:58,332 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 47 transitions. [2023-11-19 05:16:58,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-19 05:16:58,333 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:16:58,334 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:16:58,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 05:16:58,334 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:16:58,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:16:58,335 INFO L85 PathProgramCache]: Analyzing trace with hash 574772692, now seen corresponding path program 1 times [2023-11-19 05:16:58,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:16:58,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656453366] [2023-11-19 05:16:58,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:16:58,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:16:58,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:16:58,525 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 05:16:58,529 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:16:58,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656453366] [2023-11-19 05:16:58,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656453366] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:16:58,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:16:58,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 05:16:58,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271736161] [2023-11-19 05:16:58,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:16:58,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:16:58,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:16:58,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:16:58,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 05:16:58,536 INFO L87 Difference]: Start difference. First operand 38 states and 47 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 05:16:58,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:16:58,673 INFO L93 Difference]: Finished difference Result 74 states and 93 transitions. [2023-11-19 05:16:58,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 05:16:58,674 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 24 [2023-11-19 05:16:58,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:16:58,676 INFO L225 Difference]: With dead ends: 74 [2023-11-19 05:16:58,676 INFO L226 Difference]: Without dead ends: 38 [2023-11-19 05:16:58,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:16:58,679 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 41 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:16:58,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 43 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:16:58,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-11-19 05:16:58,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2023-11-19 05:16:58,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 25 states have (on average 1.28) internal successors, (32), 30 states have internal predecessors, (32), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-19 05:16:58,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 46 transitions. [2023-11-19 05:16:58,691 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 46 transitions. Word has length 24 [2023-11-19 05:16:58,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:16:58,693 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 46 transitions. [2023-11-19 05:16:58,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 05:16:58,694 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions. [2023-11-19 05:16:58,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-19 05:16:58,696 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:16:58,696 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:16:58,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 05:16:58,697 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:16:58,698 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:16:58,698 INFO L85 PathProgramCache]: Analyzing trace with hash -1022589468, now seen corresponding path program 1 times [2023-11-19 05:16:58,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:16:58,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080524629] [2023-11-19 05:16:58,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:16:58,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:16:58,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:16:59,163 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 05:16:59,164 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:16:59,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080524629] [2023-11-19 05:16:59,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080524629] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:16:59,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:16:59,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 05:16:59,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838855700] [2023-11-19 05:16:59,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:16:59,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 05:16:59,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:16:59,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 05:16:59,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:16:59,173 INFO L87 Difference]: Start difference. First operand 38 states and 46 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 05:16:59,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:16:59,326 INFO L93 Difference]: Finished difference Result 109 states and 134 transitions. [2023-11-19 05:16:59,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 05:16:59,327 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 27 [2023-11-19 05:16:59,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:16:59,329 INFO L225 Difference]: With dead ends: 109 [2023-11-19 05:16:59,344 INFO L226 Difference]: Without dead ends: 73 [2023-11-19 05:16:59,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-19 05:16:59,348 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 28 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:16:59,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 130 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:16:59,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2023-11-19 05:16:59,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 68. [2023-11-19 05:16:59,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 46 states have (on average 1.2608695652173914) internal successors, (58), 52 states have internal predecessors, (58), 12 states have call successors, (12), 9 states have call predecessors, (12), 9 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-19 05:16:59,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 82 transitions. [2023-11-19 05:16:59,380 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 82 transitions. Word has length 27 [2023-11-19 05:16:59,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:16:59,381 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 82 transitions. [2023-11-19 05:16:59,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 05:16:59,382 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 82 transitions. [2023-11-19 05:16:59,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-19 05:16:59,386 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:16:59,386 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] [2023-11-19 05:16:59,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 05:16:59,387 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:16:59,387 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:16:59,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1762089657, now seen corresponding path program 1 times [2023-11-19 05:16:59,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:16:59,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967182733] [2023-11-19 05:16:59,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:16:59,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:16:59,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:16:59,540 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 05:16:59,540 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:16:59,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967182733] [2023-11-19 05:16:59,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967182733] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:16:59,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:16:59,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 05:16:59,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196667312] [2023-11-19 05:16:59,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:16:59,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 05:16:59,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:16:59,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 05:16:59,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 05:16:59,548 INFO L87 Difference]: Start difference. First operand 68 states and 82 transitions. Second operand has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 05:16:59,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:16:59,740 INFO L93 Difference]: Finished difference Result 166 states and 203 transitions. [2023-11-19 05:16:59,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 05:16:59,741 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 30 [2023-11-19 05:16:59,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:16:59,749 INFO L225 Difference]: With dead ends: 166 [2023-11-19 05:16:59,750 INFO L226 Difference]: Without dead ends: 100 [2023-11-19 05:16:59,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-19 05:16:59,757 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 19 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:16:59,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 148 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:16:59,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2023-11-19 05:16:59,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 97. [2023-11-19 05:16:59,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 65 states have (on average 1.2) internal successors, (78), 72 states have internal predecessors, (78), 17 states have call successors, (17), 14 states have call predecessors, (17), 14 states have return successors, (19), 17 states have call predecessors, (19), 17 states have call successors, (19) [2023-11-19 05:16:59,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 114 transitions. [2023-11-19 05:16:59,784 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 114 transitions. Word has length 30 [2023-11-19 05:16:59,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:16:59,785 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 114 transitions. [2023-11-19 05:16:59,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 05:16:59,785 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 114 transitions. [2023-11-19 05:16:59,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-19 05:16:59,787 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:16:59,787 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] [2023-11-19 05:16:59,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 05:16:59,787 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:16:59,788 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:16:59,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1678817711, now seen corresponding path program 1 times [2023-11-19 05:16:59,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:16:59,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74211619] [2023-11-19 05:16:59,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:16:59,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:16:59,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:17:00,141 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 05:17:00,142 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:17:00,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74211619] [2023-11-19 05:17:00,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74211619] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:17:00,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:17:00,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 05:17:00,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301343093] [2023-11-19 05:17:00,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:17:00,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 05:17:00,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:17:00,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 05:17:00,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-19 05:17:00,158 INFO L87 Difference]: Start difference. First operand 97 states and 114 transitions. Second operand has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 05:17:00,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:17:00,663 INFO L93 Difference]: Finished difference Result 247 states and 295 transitions. [2023-11-19 05:17:00,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 05:17:00,664 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 30 [2023-11-19 05:17:00,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:17:00,667 INFO L225 Difference]: With dead ends: 247 [2023-11-19 05:17:00,667 INFO L226 Difference]: Without dead ends: 181 [2023-11-19 05:17:00,669 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2023-11-19 05:17:00,670 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 119 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 05:17:00,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 229 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 05:17:00,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2023-11-19 05:17:00,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 171. [2023-11-19 05:17:00,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 115 states have (on average 1.208695652173913) internal successors, (139), 129 states have internal predecessors, (139), 30 states have call successors, (30), 23 states have call predecessors, (30), 25 states have return successors, (34), 30 states have call predecessors, (34), 30 states have call successors, (34) [2023-11-19 05:17:00,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 203 transitions. [2023-11-19 05:17:00,715 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 203 transitions. Word has length 30 [2023-11-19 05:17:00,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:17:00,715 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 203 transitions. [2023-11-19 05:17:00,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 05:17:00,716 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 203 transitions. [2023-11-19 05:17:00,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-19 05:17:00,719 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:17:00,719 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:17:00,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 05:17:00,720 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:17:00,720 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:17:00,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1812920475, now seen corresponding path program 1 times [2023-11-19 05:17:00,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:17:00,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232022410] [2023-11-19 05:17:00,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:17:00,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:17:00,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:17:00,917 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-19 05:17:00,917 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:17:00,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232022410] [2023-11-19 05:17:00,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232022410] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:17:00,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:17:00,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 05:17:00,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196215979] [2023-11-19 05:17:00,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:17:00,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 05:17:00,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:17:00,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 05:17:00,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:17:00,921 INFO L87 Difference]: Start difference. First operand 171 states and 203 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-19 05:17:01,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:17:01,022 INFO L93 Difference]: Finished difference Result 214 states and 258 transitions. [2023-11-19 05:17:01,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 05:17:01,023 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 50 [2023-11-19 05:17:01,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:17:01,025 INFO L225 Difference]: With dead ends: 214 [2023-11-19 05:17:01,025 INFO L226 Difference]: Without dead ends: 129 [2023-11-19 05:17:01,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-19 05:17:01,031 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 41 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:17:01,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 143 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:17:01,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2023-11-19 05:17:01,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2023-11-19 05:17:01,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 87 states have (on average 1.1839080459770115) internal successors, (103), 96 states have internal predecessors, (103), 22 states have call successors, (22), 18 states have call predecessors, (22), 19 states have return successors, (23), 22 states have call predecessors, (23), 22 states have call successors, (23) [2023-11-19 05:17:01,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 148 transitions. [2023-11-19 05:17:01,081 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 148 transitions. Word has length 50 [2023-11-19 05:17:01,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:17:01,081 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 148 transitions. [2023-11-19 05:17:01,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-19 05:17:01,082 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 148 transitions. [2023-11-19 05:17:01,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-19 05:17:01,085 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:17:01,085 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:17:01,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 05:17:01,086 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:17:01,086 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:17:01,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1030679084, now seen corresponding path program 1 times [2023-11-19 05:17:01,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:17:01,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166424763] [2023-11-19 05:17:01,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:17:01,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:17:01,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:17:01,276 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 05:17:01,276 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:17:01,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166424763] [2023-11-19 05:17:01,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166424763] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:17:01,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [890138628] [2023-11-19 05:17:01,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:17:01,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:17:01,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4159113d-f5bf-4cbd-82dc-bb8137b332d1/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:17:01,280 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4159113d-f5bf-4cbd-82dc-bb8137b332d1/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:17:01,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4159113d-f5bf-4cbd-82dc-bb8137b332d1/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 05:17:01,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:17:01,421 INFO L262 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 05:17:01,429 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:17:01,660 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 16 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:17:01,660 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:17:01,887 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 05:17:01,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [890138628] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:17:01,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1299979773] [2023-11-19 05:17:01,917 INFO L159 IcfgInterpreter]: Started Sifa with 34 locations of interest [2023-11-19 05:17:01,917 INFO L166 IcfgInterpreter]: Building call graph [2023-11-19 05:17:01,923 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-19 05:17:01,930 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-19 05:17:01,931 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-19 05:17:06,349 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 143 for LOIs [2023-11-19 05:17:06,612 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 27 for LOIs [2023-11-19 05:17:06,960 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 34 for LOIs [2023-11-19 05:17:06,972 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 29 for LOIs [2023-11-19 05:17:06,980 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-19 05:17:10,120 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2541#(and (= ~waterLevel~0 |timeShift_getWaterLevel_#res#1|) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 0)) (<= ~pumpRunning~0 2147483647) (<= 0 (+ 2147483648 |old(~pumpRunning~0)|)) (<= |old(~pumpRunning~0)| 2147483647) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1|) (= |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1| |timeShift_getWaterLevel_#res#1|) (<= 0 (+ 2147483648 |timeShift_getWaterLevel_#res#1|)) (<= 0 (+ ~pumpRunning~0 2147483648)) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1| 2)) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1| 2147483647) (= ~switchedOnBeforeTS~0 0))' at error location [2023-11-19 05:17:10,121 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-19 05:17:10,121 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 05:17:10,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 13 [2023-11-19 05:17:10,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413818582] [2023-11-19 05:17:10,122 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 05:17:10,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-19 05:17:10,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:17:10,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-19 05:17:10,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=1414, Unknown=0, NotChecked=0, Total=1560 [2023-11-19 05:17:10,132 INFO L87 Difference]: Start difference. First operand 129 states and 148 transitions. Second operand has 13 states, 10 states have (on average 6.5) internal successors, (65), 11 states have internal predecessors, (65), 5 states have call successors, (14), 4 states have call predecessors, (14), 7 states have return successors, (13), 7 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-19 05:17:10,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:17:10,620 INFO L93 Difference]: Finished difference Result 143 states and 171 transitions. [2023-11-19 05:17:10,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-19 05:17:10,621 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 6.5) internal successors, (65), 11 states have internal predecessors, (65), 5 states have call successors, (14), 4 states have call predecessors, (14), 7 states have return successors, (13), 7 states have call predecessors, (13), 5 states have call successors, (13) Word has length 52 [2023-11-19 05:17:10,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:17:10,621 INFO L225 Difference]: With dead ends: 143 [2023-11-19 05:17:10,622 INFO L226 Difference]: Without dead ends: 0 [2023-11-19 05:17:10,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 123 SyntacticMatches, 7 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 730 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=212, Invalid=2044, Unknown=0, NotChecked=0, Total=2256 [2023-11-19 05:17:10,625 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 90 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 05:17:10,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 424 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 05:17:10,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-19 05:17:10,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-19 05:17:10,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:17:10,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 05:17:10,633 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 52 [2023-11-19 05:17:10,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:17:10,633 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 05:17:10,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 6.5) internal successors, (65), 11 states have internal predecessors, (65), 5 states have call successors, (14), 4 states have call predecessors, (14), 7 states have return successors, (13), 7 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-19 05:17:10,634 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-19 05:17:10,634 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 05:17:10,637 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 05:17:10,669 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4159113d-f5bf-4cbd-82dc-bb8137b332d1/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 05:17:10,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4159113d-f5bf-4cbd-82dc-bb8137b332d1/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:17:10,865 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-19 05:17:11,931 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 525 531) no Hoare annotation was computed. [2023-11-19 05:17:11,932 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 525 531) the Hoare annotation is: true [2023-11-19 05:17:11,932 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 822 833) the Hoare annotation is: true [2023-11-19 05:17:11,932 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 822 833) no Hoare annotation was computed. [2023-11-19 05:17:11,933 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 689 718) no Hoare annotation was computed. [2023-11-19 05:17:11,933 INFO L899 garLoopResultBuilder]: For program point L703(lines 703 707) no Hoare annotation was computed. [2023-11-19 05:17:11,933 INFO L902 garLoopResultBuilder]: At program point L703-1(lines 703 707) the Hoare annotation is: true [2023-11-19 05:17:11,933 INFO L902 garLoopResultBuilder]: At program point L699-2(lines 699 713) the Hoare annotation is: true [2023-11-19 05:17:11,933 INFO L902 garLoopResultBuilder]: At program point L695(line 695) the Hoare annotation is: true [2023-11-19 05:17:11,933 INFO L899 garLoopResultBuilder]: For program point L695-1(line 695) no Hoare annotation was computed. [2023-11-19 05:17:11,933 INFO L899 garLoopResultBuilder]: For program point L714(lines 689 718) no Hoare annotation was computed. [2023-11-19 05:17:11,934 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 689 718) the Hoare annotation is: true [2023-11-19 05:17:11,934 INFO L899 garLoopResultBuilder]: For program point L710(line 710) no Hoare annotation was computed. [2023-11-19 05:17:11,934 INFO L895 garLoopResultBuilder]: At program point L919(line 919) the Hoare annotation is: (let ((.cse0 (<= 1 ~switchedOnBeforeTS~0)) (.cse1 (= ~pumpRunning~0 1)) (.cse2 (not (= |old(~pumpRunning~0)| 1))) (.cse5 (not (= |old(~waterLevel~0)| 2))) (.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (= ~waterLevel~0 1)) (.cse3 (= 0 ~systemActive~0))) (and (or (< |old(~switchedOnBeforeTS~0)| 1) (and .cse0 .cse1) .cse2 .cse3) (or .cse4 .cse5 .cse3) (or (and (or (= |old(~waterLevel~0)| ~waterLevel~0) .cse6) .cse0 .cse1) .cse2 .cse5 .cse3) (or .cse4 (not (= |old(~waterLevel~0)| 1)) (and (= ~pumpRunning~0 0) .cse6) .cse3))) [2023-11-19 05:17:11,934 INFO L899 garLoopResultBuilder]: For program point L919-1(line 919) no Hoare annotation was computed. [2023-11-19 05:17:11,935 INFO L895 garLoopResultBuilder]: At program point L552(line 552) the Hoare annotation is: (let ((.cse0 (<= 1 ~switchedOnBeforeTS~0)) (.cse1 (= ~pumpRunning~0 1)) (.cse2 (not (= |old(~pumpRunning~0)| 1))) (.cse5 (not (= |old(~waterLevel~0)| 2))) (.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (= 0 ~systemActive~0))) (and (or (< |old(~switchedOnBeforeTS~0)| 1) (and .cse0 .cse1) .cse2 .cse3) (or .cse4 .cse5 .cse3) (or (and (or (= |old(~waterLevel~0)| ~waterLevel~0) (= ~waterLevel~0 1)) .cse0 .cse1) .cse2 .cse5 .cse3) (or .cse4 (not (= |old(~waterLevel~0)| 1)) .cse3))) [2023-11-19 05:17:11,935 INFO L899 garLoopResultBuilder]: For program point L552-1(lines 533 557) no Hoare annotation was computed. [2023-11-19 05:17:11,935 INFO L895 garLoopResultBuilder]: At program point L904(line 904) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 1))) (.cse1 (= ~pumpRunning~0 1)) (.cse5 (= 2 ~waterLevel~0)) (.cse4 (not (= |old(~waterLevel~0)| 2))) (.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse7 (= ~pumpRunning~0 0)) (.cse0 (= ~waterLevel~0 1)) (.cse3 (= 0 ~systemActive~0))) (and (or (and (or (= |old(~waterLevel~0)| ~waterLevel~0) .cse0) (<= 1 ~switchedOnBeforeTS~0) .cse1) (< |old(~switchedOnBeforeTS~0)| 1) .cse2 .cse3) (or .cse2 .cse4 .cse3 (and .cse5 .cse1)) (or .cse6 (and .cse7 .cse5) .cse4 .cse3) (or .cse6 (not (= |old(~waterLevel~0)| 1)) (and .cse7 .cse0) .cse3))) [2023-11-19 05:17:11,935 INFO L899 garLoopResultBuilder]: For program point L904-1(line 904) no Hoare annotation was computed. [2023-11-19 05:17:11,935 INFO L899 garLoopResultBuilder]: For program point L512-1(lines 512 518) no Hoare annotation was computed. [2023-11-19 05:17:11,936 INFO L899 garLoopResultBuilder]: For program point L541(lines 541 549) no Hoare annotation was computed. [2023-11-19 05:17:11,936 INFO L899 garLoopResultBuilder]: For program point L537(lines 537 554) no Hoare annotation was computed. [2023-11-19 05:17:11,936 INFO L899 garLoopResultBuilder]: For program point L921(lines 921 931) no Hoare annotation was computed. [2023-11-19 05:17:11,936 INFO L899 garLoopResultBuilder]: For program point L917(lines 917 934) no Hoare annotation was computed. [2023-11-19 05:17:11,936 INFO L899 garLoopResultBuilder]: For program point L917-1(lines 909 937) no Hoare annotation was computed. [2023-11-19 05:17:11,937 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 498 524) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 1))) (.cse1 (= ~pumpRunning~0 1)) (.cse5 (= 2 ~waterLevel~0)) (.cse4 (not (= |old(~waterLevel~0)| 2))) (.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse7 (= ~pumpRunning~0 0)) (.cse0 (= ~waterLevel~0 1)) (.cse3 (= 0 ~systemActive~0))) (and (or (and (or (= |old(~waterLevel~0)| ~waterLevel~0) .cse0) (<= 1 ~switchedOnBeforeTS~0) .cse1) (< |old(~switchedOnBeforeTS~0)| 1) .cse2 .cse3) (or .cse2 .cse4 .cse3 (and .cse5 .cse1)) (or .cse6 (and .cse7 .cse5) .cse4 .cse3) (or .cse6 (not (= |old(~waterLevel~0)| 1)) (and .cse7 .cse0) .cse3))) [2023-11-19 05:17:11,937 INFO L899 garLoopResultBuilder]: For program point L922(lines 922 928) no Hoare annotation was computed. [2023-11-19 05:17:11,937 INFO L899 garLoopResultBuilder]: For program point L505-2(lines 501 523) no Hoare annotation was computed. [2023-11-19 05:17:11,937 INFO L899 garLoopResultBuilder]: For program point L790(line 790) no Hoare annotation was computed. [2023-11-19 05:17:11,937 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 498 524) no Hoare annotation was computed. [2023-11-19 05:17:11,938 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 790) no Hoare annotation was computed. [2023-11-19 05:17:11,938 INFO L895 garLoopResultBuilder]: At program point L547(line 547) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= |timeShift_processEnvironment_~tmp~4#1| 0)) (.cse4 (not (= |old(~waterLevel~0)| 2))) (.cse5 (not (= |old(~pumpRunning~0)| 1))) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 (and .cse2 .cse3 (= ~waterLevel~0 1))) (or .cse0 .cse4 .cse1 (and .cse2 (= 2 ~waterLevel~0) .cse3)) (or .cse5 .cse4 .cse1) (or (< |old(~switchedOnBeforeTS~0)| 1) .cse5 .cse1))) [2023-11-19 05:17:11,938 INFO L895 garLoopResultBuilder]: At program point L473(lines 430 475) the Hoare annotation is: (let ((.cse4 (= ~pumpRunning~0 1)) (.cse0 (= |ULTIMATE.start_main_~tmp~6#1| 1)) (.cse5 (= ~pumpRunning~0 0)) (.cse1 (= 2 ~waterLevel~0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse2 .cse3 (= ~waterLevel~0 1)) (and .cse0 .cse2 .cse3 (<= 1 ~switchedOnBeforeTS~0) .cse4) (and .cse0 .cse5 .cse1 .cse2 .cse3))) [2023-11-19 05:17:11,938 INFO L899 garLoopResultBuilder]: For program point L440(lines 440 446) no Hoare annotation was computed. [2023-11-19 05:17:11,938 INFO L899 garLoopResultBuilder]: For program point L440-1(lines 440 446) no Hoare annotation was computed. [2023-11-19 05:17:11,939 INFO L895 garLoopResultBuilder]: At program point L466-2(lines 460 471) the Hoare annotation is: (let ((.cse4 (= ~pumpRunning~0 1)) (.cse0 (= |ULTIMATE.start_main_~tmp~6#1| 1)) (.cse5 (= ~pumpRunning~0 0)) (.cse1 (= 2 ~waterLevel~0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse2 .cse3 (= ~waterLevel~0 1)) (and .cse0 .cse2 .cse3 (<= 1 ~switchedOnBeforeTS~0) .cse4) (and .cse0 .cse5 .cse1 .cse2 .cse3))) [2023-11-19 05:17:11,939 INFO L899 garLoopResultBuilder]: For program point L772(lines 772 779) no Hoare annotation was computed. [2023-11-19 05:17:11,939 INFO L899 garLoopResultBuilder]: For program point L450(lines 450 456) no Hoare annotation was computed. [2023-11-19 05:17:11,939 INFO L899 garLoopResultBuilder]: For program point L772-2(lines 772 779) no Hoare annotation was computed. [2023-11-19 05:17:11,939 INFO L899 garLoopResultBuilder]: For program point L450-1(lines 450 456) no Hoare annotation was computed. [2023-11-19 05:17:11,939 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-19 05:17:11,939 INFO L899 garLoopResultBuilder]: For program point L479(lines 420 483) no Hoare annotation was computed. [2023-11-19 05:17:11,940 INFO L895 garLoopResultBuilder]: At program point L442(line 442) the Hoare annotation is: (let ((.cse4 (= ~pumpRunning~0 1)) (.cse0 (= |ULTIMATE.start_main_~tmp~6#1| 1)) (.cse1 (= 2 ~waterLevel~0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse2 .cse3 (<= 1 ~switchedOnBeforeTS~0) .cse4) (and .cse0 (let ((.cse5 (= ~pumpRunning~0 0))) (or (and .cse5 .cse2 .cse3 (= ~waterLevel~0 1)) (and .cse5 .cse1 .cse2 .cse3)))))) [2023-11-19 05:17:11,940 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-19 05:17:11,940 INFO L895 garLoopResultBuilder]: At program point L476(lines 429 477) the Hoare annotation is: false [2023-11-19 05:17:11,940 INFO L899 garLoopResultBuilder]: For program point L431(lines 430 475) no Hoare annotation was computed. [2023-11-19 05:17:11,940 INFO L895 garLoopResultBuilder]: At program point L452(line 452) the Hoare annotation is: (let ((.cse4 (= ~pumpRunning~0 1)) (.cse0 (= |ULTIMATE.start_main_~tmp~6#1| 1)) (.cse5 (= ~pumpRunning~0 0)) (.cse1 (= 2 ~waterLevel~0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse2 .cse3 (= ~waterLevel~0 1)) (and .cse0 .cse2 .cse3 (<= 1 ~switchedOnBeforeTS~0) .cse4) (and .cse0 .cse5 .cse1 .cse2 .cse3))) [2023-11-19 05:17:11,940 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 810 821) no Hoare annotation was computed. [2023-11-19 05:17:11,941 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 810 821) the Hoare annotation is: (let ((.cse1 (= |old(~waterLevel~0)| 2))) (let ((.cse0 (= 2 ~waterLevel~0)) (.cse3 (not .cse1)) (.cse6 (not (= ~pumpRunning~0 1))) (.cse4 (= 0 ~systemActive~0)) (.cse5 (= ~waterLevel~0 1))) (and (or (and .cse0 .cse1) (let ((.cse2 (not (= ~pumpRunning~0 0)))) (and (or .cse2 .cse3 .cse4) (or .cse2 (not (= |old(~waterLevel~0)| 1)) .cse4))) .cse5) (or .cse0 .cse6 .cse3 .cse4) (or (< ~switchedOnBeforeTS~0 1) .cse6 (= |old(~waterLevel~0)| ~waterLevel~0) .cse4 .cse5)))) [2023-11-19 05:17:11,941 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 585 593) no Hoare annotation was computed. [2023-11-19 05:17:11,941 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 585 593) the Hoare annotation is: true [2023-11-19 05:17:11,944 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:17:11,947 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 05:17:11,960 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:17:11 BoogieIcfgContainer [2023-11-19 05:17:11,961 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 05:17:11,961 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 05:17:11,961 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 05:17:11,962 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 05:17:11,962 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:16:57" (3/4) ... [2023-11-19 05:17:11,964 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 05:17:11,968 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2023-11-19 05:17:11,968 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2023-11-19 05:17:11,968 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2023-11-19 05:17:11,969 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2023-11-19 05:17:11,969 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2023-11-19 05:17:11,969 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2023-11-19 05:17:11,978 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 40 nodes and edges [2023-11-19 05:17:11,979 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2023-11-19 05:17:11,980 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-19 05:17:11,980 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 05:17:11,981 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 05:17:12,112 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4159113d-f5bf-4cbd-82dc-bb8137b332d1/bin/utaipan-verify-t7M7D8N6sZ/witness.graphml [2023-11-19 05:17:12,113 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4159113d-f5bf-4cbd-82dc-bb8137b332d1/bin/utaipan-verify-t7M7D8N6sZ/witness.yml [2023-11-19 05:17:12,113 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 05:17:12,114 INFO L158 Benchmark]: Toolchain (without parser) took 16260.57ms. Allocated memory was 184.5MB in the beginning and 478.2MB in the end (delta: 293.6MB). Free memory was 149.6MB in the beginning and 331.8MB in the end (delta: -182.2MB). Peak memory consumption was 113.4MB. Max. memory is 16.1GB. [2023-11-19 05:17:12,114 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 134.2MB. Free memory is still 78.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:17:12,115 INFO L158 Benchmark]: CACSL2BoogieTranslator took 632.82ms. Allocated memory is still 184.5MB. Free memory was 149.1MB in the beginning and 130.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 05:17:12,115 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.48ms. Allocated memory is still 184.5MB. Free memory was 130.2MB in the beginning and 128.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:17:12,116 INFO L158 Benchmark]: Boogie Preprocessor took 51.86ms. Allocated memory is still 184.5MB. Free memory was 128.1MB in the beginning and 126.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:17:12,116 INFO L158 Benchmark]: RCFGBuilder took 849.61ms. Allocated memory is still 184.5MB. Free memory was 126.5MB in the beginning and 152.5MB in the end (delta: -26.0MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. [2023-11-19 05:17:12,117 INFO L158 Benchmark]: TraceAbstraction took 14475.34ms. Allocated memory was 184.5MB in the beginning and 478.2MB in the end (delta: 293.6MB). Free memory was 152.5MB in the beginning and 338.1MB in the end (delta: -185.6MB). Peak memory consumption was 108.0MB. Max. memory is 16.1GB. [2023-11-19 05:17:12,117 INFO L158 Benchmark]: Witness Printer took 152.07ms. Allocated memory is still 478.2MB. Free memory was 338.1MB in the beginning and 331.8MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 05:17:12,120 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 134.2MB. Free memory is still 78.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 632.82ms. Allocated memory is still 184.5MB. Free memory was 149.1MB in the beginning and 130.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 87.48ms. Allocated memory is still 184.5MB. Free memory was 130.2MB in the beginning and 128.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.86ms. Allocated memory is still 184.5MB. Free memory was 128.1MB in the beginning and 126.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 849.61ms. Allocated memory is still 184.5MB. Free memory was 126.5MB in the beginning and 152.5MB in the end (delta: -26.0MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. * TraceAbstraction took 14475.34ms. Allocated memory was 184.5MB in the beginning and 478.2MB in the end (delta: 293.6MB). Free memory was 152.5MB in the beginning and 338.1MB in the end (delta: -185.6MB). Peak memory consumption was 108.0MB. Max. memory is 16.1GB. * Witness Printer took 152.07ms. Allocated memory is still 478.2MB. Free memory was 338.1MB in the beginning and 331.8MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] - GenericResultAtLocation [Line: 415]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [415] - GenericResultAtLocation [Line: 484]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [484] - GenericResultAtLocation [Line: 649]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [649] - GenericResultAtLocation [Line: 687]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [687] - GenericResultAtLocation [Line: 785]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [785] - GenericResultAtLocation [Line: 794]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [794] - GenericResultAtLocation [Line: 889]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [889] * 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: 790]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 51 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 14.4s, OverallIterations: 8, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 363 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 345 mSDsluCounter, 1227 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 869 mSDsCounter, 101 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 881 IncrementalHoareTripleChecker+Invalid, 982 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 101 mSolverCounterUnsat, 358 mSDtfsCounter, 881 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 231 GetRequests, 146 SyntacticMatches, 7 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 763 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=171occurred in iteration=6, InterpolantAutomatonStates: 56, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 18 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 18 LocationsWithAnnotation, 184 PreInvPairs, 209 NumberOfFragments, 715 HoareAnnotationTreeSize, 184 FomulaSimplifications, 435 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 18 FomulaSimplificationsInter, 461 FormulaSimplificationTreeSizeReductionInter, 1.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 308 NumberOfCodeBlocks, 308 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 350 ConstructedInterpolants, 0 QuantifiedInterpolants, 846 SizeOfPredicates, 3 NumberOfNonLiveVariables, 245 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 10 InterpolantComputations, 7 PerfectInterpolantSequences, 84/97 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: 430]: Loop Invariant Derived loop invariant: ((((((((tmp == 1) && (2 == waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0)) && (pumpRunning == 1)) || (((((tmp == 1) && (pumpRunning == 0)) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel == 1))) || (((((tmp == 1) && (1 == systemActive)) && (splverifierCounter == 0)) && (1 <= switchedOnBeforeTS)) && (pumpRunning == 1))) || (((((tmp == 1) && (pumpRunning == 0)) && (2 == waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0))) - InvariantResult [Line: 429]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 699]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-11-19 05:17:12,157 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4159113d-f5bf-4cbd-82dc-bb8137b332d1/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE