./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product56.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73726008-512c-4a74-81f6-661c7b012817/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73726008-512c-4a74-81f6-661c7b012817/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_73726008-512c-4a74-81f6-661c7b012817/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73726008-512c-4a74-81f6-661c7b012817/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product56.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73726008-512c-4a74-81f6-661c7b012817/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_73726008-512c-4a74-81f6-661c7b012817/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 fa0eab3945757815cbe114f72b31b9c97b3f41e20a7d5f245c817ae82afdf9aa --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:11:57,913 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:11:58,038 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73726008-512c-4a74-81f6-661c7b012817/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 05:11:58,048 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:11:58,049 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:11:58,088 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:11:58,089 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:11:58,089 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:11:58,090 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:11:58,096 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:11:58,096 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:11:58,097 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:11:58,098 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:11:58,100 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:11:58,100 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:11:58,101 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:11:58,101 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:11:58,101 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:11:58,102 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:11:58,102 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:11:58,104 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:11:58,105 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:11:58,106 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:11:58,107 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:11:58,107 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:11:58,107 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:11:58,108 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:11:58,108 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:11:58,109 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:11:58,109 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:11:58,110 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:11:58,111 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:11:58,111 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:11:58,111 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:11:58,112 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:11:58,112 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:11:58,112 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:11:58,112 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:11:58,113 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:11:58,113 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:11:58,113 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:11:58,114 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:11:58,114 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:11:58,114 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:11:58,115 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:11:58,115 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_73726008-512c-4a74-81f6-661c7b012817/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73726008-512c-4a74-81f6-661c7b012817/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa0eab3945757815cbe114f72b31b9c97b3f41e20a7d5f245c817ae82afdf9aa [2023-11-19 05:11:58,433 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:11:58,467 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:11:58,470 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:11:58,472 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:11:58,473 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:11:58,475 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73726008-512c-4a74-81f6-661c7b012817/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/product-lines/minepump_spec2_product56.cil.c [2023-11-19 05:12:01,660 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:12:01,904 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:12:01,920 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73726008-512c-4a74-81f6-661c7b012817/sv-benchmarks/c/product-lines/minepump_spec2_product56.cil.c [2023-11-19 05:12:01,934 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73726008-512c-4a74-81f6-661c7b012817/bin/utaipan-verify-t7M7D8N6sZ/data/4c44c623c/88d3a45474464cc7a8786284d9f307d3/FLAG189151055 [2023-11-19 05:12:01,955 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73726008-512c-4a74-81f6-661c7b012817/bin/utaipan-verify-t7M7D8N6sZ/data/4c44c623c/88d3a45474464cc7a8786284d9f307d3 [2023-11-19 05:12:01,960 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:12:01,962 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:12:01,967 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:12:01,968 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:12:01,973 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:12:01,974 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:12:01" (1/1) ... [2023-11-19 05:12:01,975 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f88fe2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:01, skipping insertion in model container [2023-11-19 05:12:01,975 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:12:01" (1/1) ... [2023-11-19 05:12:02,049 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:12:02,380 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_73726008-512c-4a74-81f6-661c7b012817/sv-benchmarks/c/product-lines/minepump_spec2_product56.cil.c[11292,11305] [2023-11-19 05:12:02,426 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:12:02,438 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:12:02,449 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] [2023-11-19 05:12:02,450 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [415] [2023-11-19 05:12:02,451 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [424] [2023-11-19 05:12:02,451 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [535] [2023-11-19 05:12:02,451 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [575] [2023-11-19 05:12:02,452 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [827] [2023-11-19 05:12:02,452 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [897] [2023-11-19 05:12:02,452 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [935] [2023-11-19 05:12:02,483 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_73726008-512c-4a74-81f6-661c7b012817/sv-benchmarks/c/product-lines/minepump_spec2_product56.cil.c[11292,11305] [2023-11-19 05:12:02,503 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:12:02,525 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:12:02,525 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:02 WrapperNode [2023-11-19 05:12:02,525 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:12:02,527 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:12:02,527 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:12:02,527 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:12:02,535 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:02" (1/1) ... [2023-11-19 05:12:02,549 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:02" (1/1) ... [2023-11-19 05:12:02,579 INFO L138 Inliner]: procedures = 59, calls = 106, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 232 [2023-11-19 05:12:02,580 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:12:02,580 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:12:02,581 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:12:02,581 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:12:02,595 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:02" (1/1) ... [2023-11-19 05:12:02,595 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:02" (1/1) ... [2023-11-19 05:12:02,607 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:02" (1/1) ... [2023-11-19 05:12:02,613 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:02" (1/1) ... [2023-11-19 05:12:02,619 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:02" (1/1) ... [2023-11-19 05:12:02,636 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:02" (1/1) ... [2023-11-19 05:12:02,638 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:02" (1/1) ... [2023-11-19 05:12:02,639 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:02" (1/1) ... [2023-11-19 05:12:02,642 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:12:02,648 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:12:02,648 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:12:02,648 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:12:02,649 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:02" (1/1) ... [2023-11-19 05:12:02,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:12:02,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73726008-512c-4a74-81f6-661c7b012817/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:12:02,689 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73726008-512c-4a74-81f6-661c7b012817/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:12:02,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73726008-512c-4a74-81f6-661c7b012817/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:12:02,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:12:02,728 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-11-19 05:12:02,729 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-11-19 05:12:02,729 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-19 05:12:02,729 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-19 05:12:02,729 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-19 05:12:02,729 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-19 05:12:02,730 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-11-19 05:12:02,730 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-11-19 05:12:02,730 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-11-19 05:12:02,730 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-11-19 05:12:02,731 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-19 05:12:02,731 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-19 05:12:02,731 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2023-11-19 05:12:02,731 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2023-11-19 05:12:02,732 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-11-19 05:12:02,732 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-11-19 05:12:02,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:12:02,732 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-19 05:12:02,733 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-19 05:12:02,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:12:02,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:12:02,820 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:12:02,822 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:12:03,182 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:12:03,384 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:12:03,384 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 05:12:03,390 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:12:03 BoogieIcfgContainer [2023-11-19 05:12:03,390 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:12:03,394 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:12:03,394 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:12:03,397 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:12:03,398 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:12:01" (1/3) ... [2023-11-19 05:12:03,398 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43c1016f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:12:03, skipping insertion in model container [2023-11-19 05:12:03,399 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:02" (2/3) ... [2023-11-19 05:12:03,400 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43c1016f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:12:03, skipping insertion in model container [2023-11-19 05:12:03,401 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:12:03" (3/3) ... [2023-11-19 05:12:03,402 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product56.cil.c [2023-11-19 05:12:03,422 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:12:03,422 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:12:03,488 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:12:03,497 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;@21e8b03f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:12:03,497 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:12:03,502 INFO L276 IsEmpty]: Start isEmpty. Operand has 74 states, 46 states have (on average 1.4565217391304348) internal successors, (67), 57 states have internal predecessors, (67), 17 states have call successors, (17), 9 states have call predecessors, (17), 9 states have return successors, (17), 12 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-19 05:12:03,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-19 05:12:03,514 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:12:03,515 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:12:03,516 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:12:03,523 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:12:03,524 INFO L85 PathProgramCache]: Analyzing trace with hash -521420809, now seen corresponding path program 1 times [2023-11-19 05:12:03,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:12:03,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008358473] [2023-11-19 05:12:03,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:03,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:12:03,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:03,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:12:03,718 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:12:03,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008358473] [2023-11-19 05:12:03,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008358473] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:12:03,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:12:03,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:12:03,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810837346] [2023-11-19 05:12:03,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:12:03,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 05:12:03,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:12:03,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 05:12:03,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:12:03,759 INFO L87 Difference]: Start difference. First operand has 74 states, 46 states have (on average 1.4565217391304348) internal successors, (67), 57 states have internal predecessors, (67), 17 states have call successors, (17), 9 states have call predecessors, (17), 9 states have return successors, (17), 12 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 05:12:03,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:12:03,825 INFO L93 Difference]: Finished difference Result 146 states and 203 transitions. [2023-11-19 05:12:03,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 05:12:03,828 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2023-11-19 05:12:03,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:12:03,837 INFO L225 Difference]: With dead ends: 146 [2023-11-19 05:12:03,838 INFO L226 Difference]: Without dead ends: 69 [2023-11-19 05:12:03,842 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 05:12:03,845 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:12:03,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 79 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:12:03,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2023-11-19 05:12:03,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2023-11-19 05:12:03,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 43 states have (on average 1.372093023255814) internal successors, (59), 53 states have internal predecessors, (59), 17 states have call successors, (17), 9 states have call predecessors, (17), 8 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-19 05:12:03,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 92 transitions. [2023-11-19 05:12:03,893 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 92 transitions. Word has length 17 [2023-11-19 05:12:03,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:12:03,894 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 92 transitions. [2023-11-19 05:12:03,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 05:12:03,895 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 92 transitions. [2023-11-19 05:12:03,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-19 05:12:03,897 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:12:03,898 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:12:03,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 05:12:03,898 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:12:03,899 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:12:03,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1782911583, now seen corresponding path program 1 times [2023-11-19 05:12:03,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:12:03,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943144738] [2023-11-19 05:12:03,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:03,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:12:03,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:04,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:12:04,022 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:12:04,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943144738] [2023-11-19 05:12:04,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943144738] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:12:04,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:12:04,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:12:04,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574528100] [2023-11-19 05:12:04,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:12:04,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:12:04,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:12:04,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:12:04,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:12:04,027 INFO L87 Difference]: Start difference. First operand 69 states and 92 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 05:12:04,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:12:04,106 INFO L93 Difference]: Finished difference Result 110 states and 146 transitions. [2023-11-19 05:12:04,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:12:04,107 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2023-11-19 05:12:04,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:12:04,109 INFO L225 Difference]: With dead ends: 110 [2023-11-19 05:12:04,109 INFO L226 Difference]: Without dead ends: 61 [2023-11-19 05:12:04,110 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 05:12:04,113 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 14 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:12:04,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 114 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:12:04,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2023-11-19 05:12:04,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2023-11-19 05:12:04,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 38 states have (on average 1.394736842105263) internal successors, (53), 48 states have internal predecessors, (53), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 9 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-19 05:12:04,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 81 transitions. [2023-11-19 05:12:04,131 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 81 transitions. Word has length 18 [2023-11-19 05:12:04,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:12:04,131 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 81 transitions. [2023-11-19 05:12:04,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 05:12:04,132 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 81 transitions. [2023-11-19 05:12:04,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-19 05:12:04,133 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:12:04,133 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:12:04,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 05:12:04,134 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:12:04,134 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:12:04,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1812099237, now seen corresponding path program 1 times [2023-11-19 05:12:04,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:12:04,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399935699] [2023-11-19 05:12:04,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:04,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:12:04,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:04,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:12:04,226 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:12:04,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399935699] [2023-11-19 05:12:04,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399935699] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:12:04,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:12:04,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:12:04,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631845875] [2023-11-19 05:12:04,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:12:04,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:12:04,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:12:04,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:12:04,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:12:04,229 INFO L87 Difference]: Start difference. First operand 61 states and 81 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 05:12:04,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:12:04,301 INFO L93 Difference]: Finished difference Result 179 states and 240 transitions. [2023-11-19 05:12:04,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:12:04,301 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2023-11-19 05:12:04,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:12:04,304 INFO L225 Difference]: With dead ends: 179 [2023-11-19 05:12:04,304 INFO L226 Difference]: Without dead ends: 120 [2023-11-19 05:12:04,305 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 05:12:04,307 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 75 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:12:04,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 139 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:12:04,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2023-11-19 05:12:04,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 117. [2023-11-19 05:12:04,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 72 states have (on average 1.4027777777777777) internal successors, (101), 91 states have internal predecessors, (101), 28 states have call successors, (28), 16 states have call predecessors, (28), 16 states have return successors, (28), 17 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-19 05:12:04,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 157 transitions. [2023-11-19 05:12:04,345 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 157 transitions. Word has length 21 [2023-11-19 05:12:04,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:12:04,346 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 157 transitions. [2023-11-19 05:12:04,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 05:12:04,346 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 157 transitions. [2023-11-19 05:12:04,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-19 05:12:04,353 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:12:04,353 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:12:04,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 05:12:04,354 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:12:04,354 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:12:04,354 INFO L85 PathProgramCache]: Analyzing trace with hash -773986151, now seen corresponding path program 1 times [2023-11-19 05:12:04,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:12:04,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359260214] [2023-11-19 05:12:04,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:04,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:12:04,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:04,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:12:04,567 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:12:04,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359260214] [2023-11-19 05:12:04,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359260214] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:12:04,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:12:04,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 05:12:04,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213209806] [2023-11-19 05:12:04,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:12:04,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 05:12:04,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:12:04,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 05:12:04,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 05:12:04,571 INFO L87 Difference]: Start difference. First operand 117 states and 157 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 05:12:04,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:12:04,809 INFO L93 Difference]: Finished difference Result 341 states and 462 transitions. [2023-11-19 05:12:04,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 05:12:04,810 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2023-11-19 05:12:04,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:12:04,818 INFO L225 Difference]: With dead ends: 341 [2023-11-19 05:12:04,818 INFO L226 Difference]: Without dead ends: 226 [2023-11-19 05:12:04,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-19 05:12:04,821 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 56 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 05:12:04,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 285 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 05:12:04,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2023-11-19 05:12:04,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 220. [2023-11-19 05:12:04,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 135 states have (on average 1.385185185185185) internal successors, (187), 170 states have internal predecessors, (187), 54 states have call successors, (54), 30 states have call predecessors, (54), 30 states have return successors, (54), 32 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-19 05:12:04,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 295 transitions. [2023-11-19 05:12:04,867 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 295 transitions. Word has length 24 [2023-11-19 05:12:04,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:12:04,868 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 295 transitions. [2023-11-19 05:12:04,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 05:12:04,868 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 295 transitions. [2023-11-19 05:12:04,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-19 05:12:04,871 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:12:04,871 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:12:04,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 05:12:04,872 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:12:04,872 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:12:04,872 INFO L85 PathProgramCache]: Analyzing trace with hash 864190087, now seen corresponding path program 1 times [2023-11-19 05:12:04,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:12:04,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834931001] [2023-11-19 05:12:04,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:04,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:12:04,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:04,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:12:04,983 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:12:04,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834931001] [2023-11-19 05:12:04,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834931001] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:12:04,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:12:04,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:12:04,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278354433] [2023-11-19 05:12:04,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:12:04,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:12:04,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:12:04,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:12:04,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:12:04,986 INFO L87 Difference]: Start difference. First operand 220 states and 295 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 05:12:05,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:12:05,097 INFO L93 Difference]: Finished difference Result 335 states and 454 transitions. [2023-11-19 05:12:05,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:12:05,097 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 27 [2023-11-19 05:12:05,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:12:05,102 INFO L225 Difference]: With dead ends: 335 [2023-11-19 05:12:05,102 INFO L226 Difference]: Without dead ends: 333 [2023-11-19 05:12:05,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:12:05,104 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 56 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:12:05,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 125 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:12:05,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2023-11-19 05:12:05,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 333. [2023-11-19 05:12:05,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 204 states have (on average 1.3872549019607843) internal successors, (283), 257 states have internal predecessors, (283), 82 states have call successors, (82), 46 states have call predecessors, (82), 46 states have return successors, (86), 49 states have call predecessors, (86), 82 states have call successors, (86) [2023-11-19 05:12:05,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 451 transitions. [2023-11-19 05:12:05,169 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 451 transitions. Word has length 27 [2023-11-19 05:12:05,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:12:05,169 INFO L495 AbstractCegarLoop]: Abstraction has 333 states and 451 transitions. [2023-11-19 05:12:05,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 05:12:05,170 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 451 transitions. [2023-11-19 05:12:05,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-19 05:12:05,174 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:12:05,174 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:12:05,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 05:12:05,175 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:12:05,175 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:12:05,175 INFO L85 PathProgramCache]: Analyzing trace with hash -1613341106, now seen corresponding path program 1 times [2023-11-19 05:12:05,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:12:05,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559413773] [2023-11-19 05:12:05,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:05,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:12:05,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:05,421 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 05:12:05,424 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:12:05,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559413773] [2023-11-19 05:12:05,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559413773] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:12:05,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:12:05,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 05:12:05,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362007600] [2023-11-19 05:12:05,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:12:05,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 05:12:05,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:12:05,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 05:12:05,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 05:12:05,429 INFO L87 Difference]: Start difference. First operand 333 states and 451 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-19 05:12:05,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:12:05,861 INFO L93 Difference]: Finished difference Result 1073 states and 1446 transitions. [2023-11-19 05:12:05,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 05:12:05,863 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 48 [2023-11-19 05:12:05,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:12:05,874 INFO L225 Difference]: With dead ends: 1073 [2023-11-19 05:12:05,875 INFO L226 Difference]: Without dead ends: 742 [2023-11-19 05:12:05,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-11-19 05:12:05,892 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 119 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 05:12:05,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 215 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 05:12:05,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2023-11-19 05:12:06,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 700. [2023-11-19 05:12:06,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 700 states, 460 states have (on average 1.2456521739130435) internal successors, (573), 505 states have internal predecessors, (573), 116 states have call successors, (116), 95 states have call predecessors, (116), 123 states have return successors, (174), 123 states have call predecessors, (174), 116 states have call successors, (174) [2023-11-19 05:12:06,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 863 transitions. [2023-11-19 05:12:06,015 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 863 transitions. Word has length 48 [2023-11-19 05:12:06,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:12:06,016 INFO L495 AbstractCegarLoop]: Abstraction has 700 states and 863 transitions. [2023-11-19 05:12:06,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-19 05:12:06,017 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 863 transitions. [2023-11-19 05:12:06,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-19 05:12:06,022 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:12:06,023 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:12:06,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 05:12:06,023 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:12:06,024 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:12:06,024 INFO L85 PathProgramCache]: Analyzing trace with hash -2052022862, now seen corresponding path program 1 times [2023-11-19 05:12:06,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:12:06,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617391912] [2023-11-19 05:12:06,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:06,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:12:06,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:06,125 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 05:12:06,126 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:12:06,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617391912] [2023-11-19 05:12:06,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617391912] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:12:06,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:12:06,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 05:12:06,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682614252] [2023-11-19 05:12:06,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:12:06,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:12:06,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:12:06,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:12:06,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 05:12:06,131 INFO L87 Difference]: Start difference. First operand 700 states and 863 transitions. Second operand has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-19 05:12:06,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:12:06,346 INFO L93 Difference]: Finished difference Result 1115 states and 1377 transitions. [2023-11-19 05:12:06,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 05:12:06,347 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) Word has length 61 [2023-11-19 05:12:06,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:12:06,354 INFO L225 Difference]: With dead ends: 1115 [2023-11-19 05:12:06,354 INFO L226 Difference]: Without dead ends: 417 [2023-11-19 05:12:06,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 05:12:06,360 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 97 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:12:06,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 136 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:12:06,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2023-11-19 05:12:06,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 400. [2023-11-19 05:12:06,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 266 states have (on average 1.236842105263158) internal successors, (329), 291 states have internal predecessors, (329), 64 states have call successors, (64), 55 states have call predecessors, (64), 69 states have return successors, (93), 69 states have call predecessors, (93), 64 states have call successors, (93) [2023-11-19 05:12:06,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 486 transitions. [2023-11-19 05:12:06,431 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 486 transitions. Word has length 61 [2023-11-19 05:12:06,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:12:06,431 INFO L495 AbstractCegarLoop]: Abstraction has 400 states and 486 transitions. [2023-11-19 05:12:06,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-19 05:12:06,432 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 486 transitions. [2023-11-19 05:12:06,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-19 05:12:06,435 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:12:06,435 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:12:06,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 05:12:06,436 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:12:06,436 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:12:06,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1269058979, now seen corresponding path program 1 times [2023-11-19 05:12:06,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:12:06,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304748873] [2023-11-19 05:12:06,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:06,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:12:06,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:06,635 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-11-19 05:12:06,635 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:12:06,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304748873] [2023-11-19 05:12:06,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304748873] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:12:06,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:12:06,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 05:12:06,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717259209] [2023-11-19 05:12:06,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:12:06,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:12:06,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:12:06,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:12:06,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 05:12:06,638 INFO L87 Difference]: Start difference. First operand 400 states and 486 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-19 05:12:06,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:12:06,751 INFO L93 Difference]: Finished difference Result 648 states and 791 transitions. [2023-11-19 05:12:06,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 05:12:06,751 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 67 [2023-11-19 05:12:06,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:12:06,755 INFO L225 Difference]: With dead ends: 648 [2023-11-19 05:12:06,755 INFO L226 Difference]: Without dead ends: 383 [2023-11-19 05:12:06,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:12:06,757 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 52 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:12:06,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 182 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:12:06,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2023-11-19 05:12:06,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 367. [2023-11-19 05:12:06,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 242 states have (on average 1.2272727272727273) internal successors, (297), 266 states have internal predecessors, (297), 59 states have call successors, (59), 51 states have call predecessors, (59), 65 states have return successors, (84), 63 states have call predecessors, (84), 59 states have call successors, (84) [2023-11-19 05:12:06,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 440 transitions. [2023-11-19 05:12:06,806 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 440 transitions. Word has length 67 [2023-11-19 05:12:06,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:12:06,806 INFO L495 AbstractCegarLoop]: Abstraction has 367 states and 440 transitions. [2023-11-19 05:12:06,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-19 05:12:06,807 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 440 transitions. [2023-11-19 05:12:06,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-19 05:12:06,809 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:12:06,809 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:12:06,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 05:12:06,810 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:12:06,810 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:12:06,811 INFO L85 PathProgramCache]: Analyzing trace with hash 225906049, now seen corresponding path program 1 times [2023-11-19 05:12:06,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:12:06,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556228915] [2023-11-19 05:12:06,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:06,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:12:06,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:06,955 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 17 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-19 05:12:06,956 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:12:06,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556228915] [2023-11-19 05:12:06,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556228915] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:12:06,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1972745133] [2023-11-19 05:12:06,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:06,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:12:06,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73726008-512c-4a74-81f6-661c7b012817/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:12:06,960 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73726008-512c-4a74-81f6-661c7b012817/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:12:06,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73726008-512c-4a74-81f6-661c7b012817/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 05:12:07,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:07,104 INFO L262 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 05:12:07,111 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:12:07,240 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:12:07,241 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:12:07,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1972745133] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:12:07,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 05:12:07,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2023-11-19 05:12:07,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707356588] [2023-11-19 05:12:07,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:12:07,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:12:07,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:12:07,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:12:07,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-11-19 05:12:07,245 INFO L87 Difference]: Start difference. First operand 367 states and 440 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-19 05:12:07,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:12:07,335 INFO L93 Difference]: Finished difference Result 705 states and 847 transitions. [2023-11-19 05:12:07,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:12:07,335 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 70 [2023-11-19 05:12:07,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:12:07,343 INFO L225 Difference]: With dead ends: 705 [2023-11-19 05:12:07,344 INFO L226 Difference]: Without dead ends: 340 [2023-11-19 05:12:07,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-11-19 05:12:07,347 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 38 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:12:07,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 132 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:12:07,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2023-11-19 05:12:07,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2023-11-19 05:12:07,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 225 states have (on average 1.2044444444444444) internal successors, (271), 248 states have internal predecessors, (271), 55 states have call successors, (55), 47 states have call predecessors, (55), 59 states have return successors, (70), 58 states have call predecessors, (70), 55 states have call successors, (70) [2023-11-19 05:12:07,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 396 transitions. [2023-11-19 05:12:07,395 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 396 transitions. Word has length 70 [2023-11-19 05:12:07,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:12:07,395 INFO L495 AbstractCegarLoop]: Abstraction has 340 states and 396 transitions. [2023-11-19 05:12:07,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-19 05:12:07,396 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 396 transitions. [2023-11-19 05:12:07,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-19 05:12:07,398 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:12:07,398 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:12:07,421 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73726008-512c-4a74-81f6-661c7b012817/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 05:12:07,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73726008-512c-4a74-81f6-661c7b012817/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:12:07,612 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:12:07,612 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:12:07,613 INFO L85 PathProgramCache]: Analyzing trace with hash 805858897, now seen corresponding path program 1 times [2023-11-19 05:12:07,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:12:07,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705224751] [2023-11-19 05:12:07,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:07,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:12:07,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:07,825 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-19 05:12:07,825 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:12:07,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705224751] [2023-11-19 05:12:07,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705224751] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:12:07,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1811818314] [2023-11-19 05:12:07,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:07,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:12:07,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73726008-512c-4a74-81f6-661c7b012817/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:12:07,827 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73726008-512c-4a74-81f6-661c7b012817/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:12:07,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73726008-512c-4a74-81f6-661c7b012817/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 05:12:07,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:07,947 INFO L262 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-19 05:12:07,955 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:12:08,472 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 05:12:08,472 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:12:08,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1811818314] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:12:08,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 05:12:08,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 17 [2023-11-19 05:12:08,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450677702] [2023-11-19 05:12:08,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:12:08,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 05:12:08,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:12:08,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 05:12:08,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2023-11-19 05:12:08,475 INFO L87 Difference]: Start difference. First operand 340 states and 396 transitions. Second operand has 10 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 6 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (10), 4 states have call predecessors, (10), 6 states have call successors, (10) [2023-11-19 05:12:09,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:12:09,101 INFO L93 Difference]: Finished difference Result 840 states and 1006 transitions. [2023-11-19 05:12:09,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 05:12:09,102 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 6 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (10), 4 states have call predecessors, (10), 6 states have call successors, (10) Word has length 78 [2023-11-19 05:12:09,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:12:09,106 INFO L225 Difference]: With dead ends: 840 [2023-11-19 05:12:09,106 INFO L226 Difference]: Without dead ends: 502 [2023-11-19 05:12:09,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 69 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=87, Invalid=419, Unknown=0, NotChecked=0, Total=506 [2023-11-19 05:12:09,108 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 245 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 05:12:09,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 278 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 05:12:09,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2023-11-19 05:12:09,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 431. [2023-11-19 05:12:09,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 296 states have (on average 1.212837837837838) internal successors, (359), 319 states have internal predecessors, (359), 67 states have call successors, (67), 61 states have call predecessors, (67), 67 states have return successors, (82), 66 states have call predecessors, (82), 67 states have call successors, (82) [2023-11-19 05:12:09,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 508 transitions. [2023-11-19 05:12:09,158 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 508 transitions. Word has length 78 [2023-11-19 05:12:09,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:12:09,158 INFO L495 AbstractCegarLoop]: Abstraction has 431 states and 508 transitions. [2023-11-19 05:12:09,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 6 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (10), 4 states have call predecessors, (10), 6 states have call successors, (10) [2023-11-19 05:12:09,159 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 508 transitions. [2023-11-19 05:12:09,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-19 05:12:09,161 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:12:09,161 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:12:09,182 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73726008-512c-4a74-81f6-661c7b012817/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 05:12:09,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73726008-512c-4a74-81f6-661c7b012817/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-19 05:12:09,378 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:12:09,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:12:09,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1159382133, now seen corresponding path program 1 times [2023-11-19 05:12:09,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:12:09,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333550085] [2023-11-19 05:12:09,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:09,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:12:09,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:09,611 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-19 05:12:09,611 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:12:09,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333550085] [2023-11-19 05:12:09,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333550085] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:12:09,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1618016588] [2023-11-19 05:12:09,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:09,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:12:09,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73726008-512c-4a74-81f6-661c7b012817/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:12:09,613 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73726008-512c-4a74-81f6-661c7b012817/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:12:09,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73726008-512c-4a74-81f6-661c7b012817/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 05:12:09,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:09,730 INFO L262 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-19 05:12:09,742 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:12:10,187 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 21 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:12:10,188 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:12:10,791 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-11-19 05:12:10,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1618016588] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:12:10,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [235194659] [2023-11-19 05:12:10,818 INFO L159 IcfgInterpreter]: Started Sifa with 52 locations of interest [2023-11-19 05:12:10,819 INFO L166 IcfgInterpreter]: Building call graph [2023-11-19 05:12:10,825 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-19 05:12:10,831 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-19 05:12:10,831 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-19 05:12:14,523 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 142 for LOIs [2023-11-19 05:12:14,686 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 27 for LOIs [2023-11-19 05:12:14,953 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__lowWaterSensor with input of size 8 for LOIs [2023-11-19 05:12:15,005 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 21 for LOIs [2023-11-19 05:12:15,060 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 8 for LOIs [2023-11-19 05:12:15,062 INFO L197 IcfgInterpreter]: Interpreting procedure changeMethaneLevel with input of size 27 for LOIs [2023-11-19 05:12:15,069 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 13 for LOIs [2023-11-19 05:12:15,070 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-19 05:12:19,108 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '12546#(and (<= 0 (+ |timeShift___utac_acc__Specification2_spec__2_~tmp___0~0#1| 2147483648)) (= |timeShift___utac_acc__Specification2_spec__2_~tmp~3#1| ~methaneLevelCritical~0) (= |timeShift_isPumpRunning_#res#1| |timeShift___utac_acc__Specification2_spec__2_~tmp___0~0#1|) (= 1 ~systemActive~0) (= |timeShift_isPumpRunning_#res#1| ~pumpRunning~0) (<= 0 |timeShift___utac_acc__Specification2_spec__2_~tmp~3#1|) (not (= |timeShift___utac_acc__Specification2_spec__2_~tmp~3#1| 0)) (not (= |timeShift___utac_acc__Specification2_spec__2_~tmp___0~0#1| 0)) (not (= ~methAndRunningLastTime~0 0)) (<= |timeShift___utac_acc__Specification2_spec__2_~tmp___0~0#1| 2147483647) (<= |timeShift___utac_acc__Specification2_spec__2_~tmp~3#1| 1))' at error location [2023-11-19 05:12:19,109 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-19 05:12:19,109 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 05:12:19,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12, 13] total 28 [2023-11-19 05:12:19,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266515278] [2023-11-19 05:12:19,110 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 05:12:19,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-11-19 05:12:19,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:12:19,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-11-19 05:12:19,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=364, Invalid=3926, Unknown=0, NotChecked=0, Total=4290 [2023-11-19 05:12:19,115 INFO L87 Difference]: Start difference. First operand 431 states and 508 transitions. Second operand has 28 states, 24 states have (on average 5.0) internal successors, (120), 23 states have internal predecessors, (120), 12 states have call successors, (32), 12 states have call predecessors, (32), 11 states have return successors, (29), 12 states have call predecessors, (29), 12 states have call successors, (29) [2023-11-19 05:12:26,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:12:26,114 INFO L93 Difference]: Finished difference Result 2793 states and 3466 transitions. [2023-11-19 05:12:26,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2023-11-19 05:12:26,115 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 24 states have (on average 5.0) internal successors, (120), 23 states have internal predecessors, (120), 12 states have call successors, (32), 12 states have call predecessors, (32), 11 states have return successors, (29), 12 states have call predecessors, (29), 12 states have call successors, (29) Word has length 81 [2023-11-19 05:12:26,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:12:26,132 INFO L225 Difference]: With dead ends: 2793 [2023-11-19 05:12:26,132 INFO L226 Difference]: Without dead ends: 2364 [2023-11-19 05:12:26,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 223 SyntacticMatches, 3 SemanticMatches, 179 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12053 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=2750, Invalid=29830, Unknown=0, NotChecked=0, Total=32580 [2023-11-19 05:12:26,152 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 1458 mSDsluCounter, 1483 mSDsCounter, 0 mSdLazyCounter, 4987 mSolverCounterSat, 816 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1462 SdHoareTripleChecker+Valid, 1611 SdHoareTripleChecker+Invalid, 5803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 816 IncrementalHoareTripleChecker+Valid, 4987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-11-19 05:12:26,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1462 Valid, 1611 Invalid, 5803 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [816 Valid, 4987 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-11-19 05:12:26,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2364 states. [2023-11-19 05:12:26,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2364 to 1797. [2023-11-19 05:12:26,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1797 states, 1269 states have (on average 1.2379826635145783) internal successors, (1571), 1347 states have internal predecessors, (1571), 268 states have call successors, (268), 248 states have call predecessors, (268), 259 states have return successors, (320), 268 states have call predecessors, (320), 268 states have call successors, (320) [2023-11-19 05:12:26,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1797 states to 1797 states and 2159 transitions. [2023-11-19 05:12:26,400 INFO L78 Accepts]: Start accepts. Automaton has 1797 states and 2159 transitions. Word has length 81 [2023-11-19 05:12:26,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:12:26,400 INFO L495 AbstractCegarLoop]: Abstraction has 1797 states and 2159 transitions. [2023-11-19 05:12:26,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 24 states have (on average 5.0) internal successors, (120), 23 states have internal predecessors, (120), 12 states have call successors, (32), 12 states have call predecessors, (32), 11 states have return successors, (29), 12 states have call predecessors, (29), 12 states have call successors, (29) [2023-11-19 05:12:26,401 INFO L276 IsEmpty]: Start isEmpty. Operand 1797 states and 2159 transitions. [2023-11-19 05:12:26,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-19 05:12:26,410 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:12:26,411 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:12:26,436 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73726008-512c-4a74-81f6-661c7b012817/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 05:12:26,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73726008-512c-4a74-81f6-661c7b012817/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-19 05:12:26,624 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:12:26,624 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:12:26,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1113581906, now seen corresponding path program 1 times [2023-11-19 05:12:26,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:12:26,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315933456] [2023-11-19 05:12:26,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:26,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:12:26,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:26,837 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 33 proven. 9 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-11-19 05:12:26,837 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:12:26,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315933456] [2023-11-19 05:12:26,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315933456] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:12:26,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [808284590] [2023-11-19 05:12:26,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:26,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:12:26,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73726008-512c-4a74-81f6-661c7b012817/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:12:26,839 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73726008-512c-4a74-81f6-661c7b012817/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:12:26,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73726008-512c-4a74-81f6-661c7b012817/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 05:12:26,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:26,961 INFO L262 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-19 05:12:26,970 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:12:27,059 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-19 05:12:27,060 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:12:27,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [808284590] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:12:27,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 05:12:27,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 14 [2023-11-19 05:12:27,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542282873] [2023-11-19 05:12:27,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:12:27,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 05:12:27,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:12:27,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 05:12:27,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2023-11-19 05:12:27,064 INFO L87 Difference]: Start difference. First operand 1797 states and 2159 transitions. Second operand has 9 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-19 05:12:27,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:12:27,495 INFO L93 Difference]: Finished difference Result 4123 states and 5007 transitions. [2023-11-19 05:12:27,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-19 05:12:27,496 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) Word has length 105 [2023-11-19 05:12:27,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:12:27,498 INFO L225 Difference]: With dead ends: 4123 [2023-11-19 05:12:27,498 INFO L226 Difference]: Without dead ends: 0 [2023-11-19 05:12:27,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2023-11-19 05:12:27,507 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 53 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 05:12:27,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 350 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 05:12:27,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-19 05:12:27,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-19 05:12:27,509 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 05:12:27,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 05:12:27,511 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 105 [2023-11-19 05:12:27,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:12:27,511 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 05:12:27,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-19 05:12:27,511 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-19 05:12:27,511 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 05:12:27,514 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 05:12:27,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73726008-512c-4a74-81f6-661c7b012817/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-19 05:12:27,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73726008-512c-4a74-81f6-661c7b012817/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:12:27,733 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-19 05:12:41,339 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 702 709) no Hoare annotation was computed. [2023-11-19 05:12:41,340 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 702 709) the Hoare annotation is: (let ((.cse3 (= 1 ~systemActive~0))) (let ((.cse0 (and (<= 1 ~pumpRunning~0) (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse3)) (.cse1 (not .cse3)) (.cse2 (< |old(~pumpRunning~0)| 1))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) .cse2) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 1)) .cse2)))) [2023-11-19 05:12:41,340 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 609 615) no Hoare annotation was computed. [2023-11-19 05:12:41,340 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 609 615) the Hoare annotation is: true [2023-11-19 05:12:41,341 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 459 470) the Hoare annotation is: (let ((.cse0 (< ~pumpRunning~0 1)) (.cse3 (not (= 1 ~systemActive~0))) (.cse6 (= ~methaneLevelCritical~0 1)) (.cse7 (not (= |old(~methaneLevelCritical~0)| 1))) (.cse1 (not (= |old(~methaneLevelCritical~0)| 0))) (.cse4 (not (= ~pumpRunning~0 0))) (.cse2 (= ~methaneLevelCritical~0 0)) (.cse5 (not (= ~methAndRunningLastTime~0 0))) (.cse8 (not (= 0 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse4 .cse2 .cse3 .cse5) (or .cse4 .cse6 .cse7 .cse5 .cse8) (or .cse0 .cse3 .cse6 .cse7) (or .cse4 .cse3 .cse6 .cse7 .cse5) (or .cse1 .cse4 .cse2 .cse5 .cse8))) [2023-11-19 05:12:41,341 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 459 470) no Hoare annotation was computed. [2023-11-19 05:12:41,341 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 937 966) no Hoare annotation was computed. [2023-11-19 05:12:41,341 INFO L899 garLoopResultBuilder]: For program point L958(line 958) no Hoare annotation was computed. [2023-11-19 05:12:41,341 INFO L899 garLoopResultBuilder]: For program point L951(lines 951 955) no Hoare annotation was computed. [2023-11-19 05:12:41,341 INFO L902 garLoopResultBuilder]: At program point L951-1(lines 951 955) the Hoare annotation is: true [2023-11-19 05:12:41,342 INFO L902 garLoopResultBuilder]: At program point L947-2(lines 947 961) the Hoare annotation is: true [2023-11-19 05:12:41,342 INFO L902 garLoopResultBuilder]: At program point L943(line 943) the Hoare annotation is: true [2023-11-19 05:12:41,342 INFO L899 garLoopResultBuilder]: For program point L943-1(line 943) no Hoare annotation was computed. [2023-11-19 05:12:41,342 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 937 966) the Hoare annotation is: true [2023-11-19 05:12:41,342 INFO L899 garLoopResultBuilder]: For program point L962(lines 937 966) no Hoare annotation was computed. [2023-11-19 05:12:41,343 INFO L895 garLoopResultBuilder]: At program point L688(line 688) the Hoare annotation is: (let ((.cse2 (not (= 0 ~systemActive~0))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse7 (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |old(~waterLevel~0)| ~waterLevel~0))) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse3 (not (= 1 ~systemActive~0))) (.cse1 (not (= ~methaneLevelCritical~0 1))) (.cse5 (< |old(~pumpRunning~0)| 1))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse5) (or .cse0 .cse4 .cse2) (or .cse0 .cse6 .cse3 .cse7 .cse1) (or .cse0 .cse6 .cse3 .cse7 .cse4) (or .cse3 .cse1 .cse5))) [2023-11-19 05:12:41,343 INFO L899 garLoopResultBuilder]: For program point L688-1(lines 669 693) no Hoare annotation was computed. [2023-11-19 05:12:41,343 INFO L899 garLoopResultBuilder]: For program point L589-1(lines 588 607) no Hoare annotation was computed. [2023-11-19 05:12:41,343 INFO L895 garLoopResultBuilder]: At program point L552(line 552) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (= ~pumpRunning~0 0)) (.cse6 (= ~methAndRunningLastTime~0 0)) (.cse8 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse10 (and (<= 1 ~pumpRunning~0) .cse6 (<= 2 ~waterLevel~0) .cse8)) (.cse2 (and .cse5 (<= |old(~waterLevel~0)| ~waterLevel~0))) (.cse14 (and .cse0 .cse5 (or (and .cse5 .cse8) (< ~waterLevel~0 |old(~waterLevel~0)|)))) (.cse17 (< |old(~waterLevel~0)| 2)) (.cse18 (< 1 ~waterLevel~0)) (.cse19 (= ~waterLevel~0 1)) (.cse4 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse11 (not (= ~methaneLevelCritical~0 0))) (.cse16 (< 1 |old(~waterLevel~0)|)) (.cse7 (<= ~waterLevel~0 1)) (.cse3 (not (= 0 ~systemActive~0))) (.cse9 (not (= 1 ~systemActive~0))) (.cse12 (not (= |old(~waterLevel~0)| 0))) (.cse1 (not (= ~methaneLevelCritical~0 1))) (.cse15 (< |old(~pumpRunning~0)| 1)) (.cse13 (= ~waterLevel~0 0))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse4 (and .cse5 .cse6 .cse7 .cse8) .cse9 .cse10 .cse11) (or .cse0 .cse4 .cse6 .cse11 .cse3) (or (and .cse5 .cse7 .cse8) .cse0 .cse4 .cse9 .cse10 .cse1) (or .cse0 .cse11 .cse12 .cse13 .cse3) (or .cse14 .cse9 .cse1 .cse15) (or .cse9 .cse11 .cse12 .cse15 .cse13) (or .cse0 .cse11 .cse2 .cse3) (or .cse14 .cse9 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 0 |old(~waterLevel~0)|) .cse13) .cse11 .cse15) (or .cse16 .cse0 .cse7 .cse11 .cse3) (or .cse9 .cse17 .cse18 .cse1 .cse15 .cse19) (or .cse9 .cse17 .cse18 .cse11 .cse15 .cse19) (or .cse4 .cse6 .cse9 .cse11 .cse15) (or .cse16 .cse0 .cse7 .cse1 .cse3) (or .cse0 .cse12 .cse1 .cse13 .cse3) (or .cse9 .cse12 .cse1 .cse15 .cse13)))) [2023-11-19 05:12:41,343 INFO L899 garLoopResultBuilder]: For program point L552-1(line 552) no Hoare annotation was computed. [2023-11-19 05:12:41,344 INFO L899 garLoopResultBuilder]: For program point L420(line 420) no Hoare annotation was computed. [2023-11-19 05:12:41,344 INFO L899 garLoopResultBuilder]: For program point L677(lines 677 685) no Hoare annotation was computed. [2023-11-19 05:12:41,344 INFO L899 garLoopResultBuilder]: For program point L673(lines 673 690) no Hoare annotation was computed. [2023-11-19 05:12:41,344 INFO L899 garLoopResultBuilder]: For program point L558(lines 558 568) no Hoare annotation was computed. [2023-11-19 05:12:41,344 INFO L895 garLoopResultBuilder]: At program point L715(line 715) the Hoare annotation is: (let ((.cse2 (not (= 0 ~systemActive~0))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse5 (not (= 1 ~systemActive~0))) (.cse6 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse8 (+ ~waterLevel~0 1))) (or (and (= |old(~waterLevel~0)| .cse8) (<= 0 ~waterLevel~0)) (< |old(~waterLevel~0)| .cse8))) (or (and (<= ~waterLevel~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) (< ~waterLevel~0 |old(~waterLevel~0)|)))) (.cse1 (not (= ~methaneLevelCritical~0 1))) (.cse7 (< |old(~pumpRunning~0)| 1))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse3 .cse2) (or .cse0 .cse4 .cse5 .cse3) (or .cse0 .cse4 .cse5 .cse1) (or .cse5 .cse3 .cse6 .cse7) (or .cse4 (= ~methAndRunningLastTime~0 0) .cse5 .cse3 .cse7) (or .cse5 .cse6 .cse1 .cse7))) [2023-11-19 05:12:41,345 INFO L899 garLoopResultBuilder]: For program point L715-1(line 715) no Hoare annotation was computed. [2023-11-19 05:12:41,345 INFO L899 garLoopResultBuilder]: For program point L554(lines 554 571) no Hoare annotation was computed. [2023-11-19 05:12:41,345 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 585 608) the Hoare annotation is: (let ((.cse5 (= ~methAndRunningLastTime~0 0)) (.cse11 (= 1 ~systemActive~0)) (.cse12 (= ~pumpRunning~0 0)) (.cse13 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse1 (and .cse12 .cse13)) (.cse3 (not (= 0 ~systemActive~0))) (.cse8 (not (= ~methaneLevelCritical~0 1))) (.cse9 (and (<= 1 ~pumpRunning~0) (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse11 .cse13)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse7 (and .cse12 .cse5 .cse13)) (.cse4 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse6 (not .cse11)) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse10 (< |old(~pumpRunning~0)| 1))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse4 .cse5 .cse2 .cse3) (or .cse0 .cse4 .cse6 .cse7 .cse8) (or .cse0 .cse1 .cse8 .cse3) (or .cse9 .cse6 .cse8 .cse10) (or .cse9 .cse6 .cse2 .cse10) (or .cse0 .cse4 .cse6 .cse7 .cse2) (or .cse4 .cse5 .cse6 .cse2 .cse10)))) [2023-11-19 05:12:41,345 INFO L899 garLoopResultBuilder]: For program point L554-1(lines 546 574) no Hoare annotation was computed. [2023-11-19 05:12:41,345 INFO L899 garLoopResultBuilder]: For program point L596-1(lines 596 602) no Hoare annotation was computed. [2023-11-19 05:12:41,346 INFO L899 garLoopResultBuilder]: For program point L559(lines 559 565) no Hoare annotation was computed. [2023-11-19 05:12:41,346 INFO L895 garLoopResultBuilder]: At program point L683(line 683) the Hoare annotation is: (let ((.cse6 (not (= 0 ~systemActive~0))) (.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (not (= ~methaneLevelCritical~0 1))) (.cse7 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse3 (< |old(~pumpRunning~0)| 1))) (and (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift_processEnvironment_~tmp~6#1| 0) (let ((.cse1 (+ ~waterLevel~0 1))) (or (and (= |old(~waterLevel~0)| .cse1) (<= 0 ~waterLevel~0)) (< |old(~waterLevel~0)| .cse1))) (or (and (<= ~waterLevel~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) (< ~waterLevel~0 |old(~waterLevel~0)|))) .cse2 .cse3) (or .cse4 .cse5 .cse6) (or .cse4 .cse2 .cse6) (or .cse4 .cse7 .cse0 .cse2) (or .cse4 .cse7 .cse0 .cse5) (or .cse0 .cse5 .cse3) (or .cse7 (= ~methAndRunningLastTime~0 0) .cse0 .cse2 .cse3))) [2023-11-19 05:12:41,346 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 585 608) no Hoare annotation was computed. [2023-11-19 05:12:41,346 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 420) no Hoare annotation was computed. [2023-11-19 05:12:41,347 INFO L895 garLoopResultBuilder]: At program point L679(line 679) the Hoare annotation is: (let ((.cse7 (not (= 0 ~systemActive~0))) (.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse5 (not (= ~methaneLevelCritical~0 1))) (.cse4 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift_processEnvironment_~tmp~6#1| ~methaneLevelCritical~0) (let ((.cse8 (+ ~waterLevel~0 1))) (or (and (= |old(~waterLevel~0)| .cse8) (<= 0 ~waterLevel~0)) (< |old(~waterLevel~0)| .cse8))) (or (and (<= ~waterLevel~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) (< ~waterLevel~0 |old(~waterLevel~0)|)))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse3 (< |old(~pumpRunning~0)| 1))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse4 .cse5 .cse3) (or .cse6 .cse5 .cse7) (or .cse6 .cse2 .cse7) (or .cse6 .cse0 .cse1 .cse2) (or .cse6 .cse0 .cse1 .cse5) (or .cse1 .cse2 .cse4 .cse3) (or .cse1 (< |old(~waterLevel~0)| 2) .cse2 .cse3))) [2023-11-19 05:12:41,347 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 471 479) the Hoare annotation is: true [2023-11-19 05:12:41,347 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 471 479) no Hoare annotation was computed. [2023-11-19 05:12:41,347 INFO L895 garLoopResultBuilder]: At program point L861(line 861) the Hoare annotation is: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse6 (= ~methaneLevelCritical~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse4 (= ~pumpRunning~0 0)) (.cse5 (= ~methAndRunningLastTime~0 0)) (.cse2 (= ~methaneLevelCritical~0 1)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse7 (= 0 ~systemActive~0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse6 .cse1 .cse3) (and .cse4 .cse5 .cse6 .cse3 .cse7) (and .cse0 .cse6 .cse1 .cse3) (and .cse4 .cse5 .cse2 .cse3 .cse7))) [2023-11-19 05:12:41,347 INFO L895 garLoopResultBuilder]: At program point L886(lines 839 888) the Hoare annotation is: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse6 (= ~methaneLevelCritical~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse4 (= ~pumpRunning~0 0)) (.cse5 (= ~methAndRunningLastTime~0 0)) (.cse2 (= ~methaneLevelCritical~0 1)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse7 (= 0 ~systemActive~0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse6 .cse1 .cse3) (and .cse4 .cse5 .cse6 .cse3 .cse7) (and .cse0 .cse6 .cse1 .cse3) (and .cse4 .cse5 .cse2 .cse3 .cse7))) [2023-11-19 05:12:41,348 INFO L899 garLoopResultBuilder]: For program point L849(lines 849 855) no Hoare annotation was computed. [2023-11-19 05:12:41,348 INFO L899 garLoopResultBuilder]: For program point L849-1(lines 849 855) no Hoare annotation was computed. [2023-11-19 05:12:41,348 INFO L899 garLoopResultBuilder]: For program point L808(lines 808 814) no Hoare annotation was computed. [2023-11-19 05:12:41,348 INFO L899 garLoopResultBuilder]: For program point L808-1(lines 808 814) no Hoare annotation was computed. [2023-11-19 05:12:41,348 INFO L899 garLoopResultBuilder]: For program point L1019(lines 1019 1026) no Hoare annotation was computed. [2023-11-19 05:12:41,348 INFO L899 garLoopResultBuilder]: For program point L1019-2(lines 1019 1026) no Hoare annotation was computed. [2023-11-19 05:12:41,348 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-19 05:12:41,349 INFO L899 garLoopResultBuilder]: For program point L892(lines 829 896) no Hoare annotation was computed. [2023-11-19 05:12:41,349 INFO L899 garLoopResultBuilder]: For program point L859(lines 859 865) no Hoare annotation was computed. [2023-11-19 05:12:41,349 INFO L899 garLoopResultBuilder]: For program point L859-1(lines 859 865) no Hoare annotation was computed. [2023-11-19 05:12:41,349 INFO L895 garLoopResultBuilder]: At program point L851(line 851) the Hoare annotation is: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse6 (= ~methaneLevelCritical~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse4 (= ~pumpRunning~0 0)) (.cse5 (= ~methAndRunningLastTime~0 0)) (.cse2 (= ~methaneLevelCritical~0 1)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse7 (= 0 ~systemActive~0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse6 .cse1 .cse3) (and .cse4 .cse5 .cse6 .cse3 .cse7) (and .cse0 .cse6 .cse1 .cse3) (and .cse4 .cse5 .cse2 .cse3 .cse7))) [2023-11-19 05:12:41,349 INFO L895 garLoopResultBuilder]: At program point L810(line 810) the Hoare annotation is: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (= ~methaneLevelCritical~0 1) .cse2) (and .cse0 (= ~methaneLevelCritical~0 0) .cse1 .cse2))) [2023-11-19 05:12:41,350 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-19 05:12:41,350 INFO L895 garLoopResultBuilder]: At program point L889(lines 838 890) the Hoare annotation is: false [2023-11-19 05:12:41,350 INFO L899 garLoopResultBuilder]: For program point L877(lines 877 883) no Hoare annotation was computed. [2023-11-19 05:12:41,350 INFO L895 garLoopResultBuilder]: At program point L877-2(lines 869 884) the Hoare annotation is: (let ((.cse5 (= ~methAndRunningLastTime~0 0)) (.cse0 (<= 1 ~pumpRunning~0)) (.cse6 (= ~methaneLevelCritical~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse4 (= ~pumpRunning~0 0)) (.cse2 (= ~methaneLevelCritical~0 1)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse7 (= 0 ~systemActive~0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse6 .cse1 .cse3) (and .cse4 .cse6 .cse3 .cse7) (and .cse0 .cse6 .cse1 .cse3) (and .cse4 .cse2 .cse3 .cse7))) [2023-11-19 05:12:41,350 INFO L899 garLoopResultBuilder]: For program point L840(lines 839 888) no Hoare annotation was computed. [2023-11-19 05:12:41,350 INFO L899 garLoopResultBuilder]: For program point L869(lines 869 884) no Hoare annotation was computed. [2023-11-19 05:12:41,351 INFO L895 garLoopResultBuilder]: At program point L636(line 636) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse2 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 1)) .cse2) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 (not (= ~waterLevel~0 0)) .cse3 (< |old(~pumpRunning~0)| 1)) (or .cse0 .cse1 .cse3 .cse2))) [2023-11-19 05:12:41,351 INFO L899 garLoopResultBuilder]: For program point L636-1(lines 617 641) no Hoare annotation was computed. [2023-11-19 05:12:41,351 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 617 641) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0))) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse3 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 1)) .cse3) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2 (not (= ~waterLevel~0 0)) .cse4 (< |old(~pumpRunning~0)| 1)) (or .cse0 .cse1 .cse2 .cse4 .cse3))) [2023-11-19 05:12:41,351 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 617 641) no Hoare annotation was computed. [2023-11-19 05:12:41,351 INFO L895 garLoopResultBuilder]: At program point L631(line 631) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (and (= ~pumpRunning~0 0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~4#1| 0) (<= ~waterLevel~0 1))) (.cse4 (not (= ~methAndRunningLastTime~0 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 1)) .cse3 .cse4) (or .cse1 (not (= ~waterLevel~0 0)) .cse2 (< |old(~pumpRunning~0)| 1)))) [2023-11-19 05:12:41,352 INFO L899 garLoopResultBuilder]: For program point L625(lines 625 633) no Hoare annotation was computed. [2023-11-19 05:12:41,352 INFO L899 garLoopResultBuilder]: For program point L621(lines 621 638) no Hoare annotation was computed. [2023-11-19 05:12:41,352 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 447 458) no Hoare annotation was computed. [2023-11-19 05:12:41,352 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 447 458) the Hoare annotation is: (let ((.cse4 (not (= 0 ~systemActive~0))) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse0 (not (= ~pumpRunning~0 0))) (.cse3 (not (= ~methAndRunningLastTime~0 0))) (.cse6 (< ~pumpRunning~0 1)) (.cse7 (not (= 1 ~systemActive~0))) (.cse5 (not (= ~methaneLevelCritical~0 1))) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse5 .cse2 .cse3 .cse4) (or .cse6 .cse7 .cse1 .cse2) (or .cse0 .cse7 .cse1 .cse2 .cse3) (or .cse0 .cse7 .cse5 .cse2 .cse3) (or .cse6 .cse7 .cse5 .cse2))) [2023-11-19 05:12:41,352 INFO L895 garLoopResultBuilder]: At program point L657(line 657) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= ~methAndRunningLastTime~0 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse3 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 1)) .cse2) (or .cse0 .cse1 .cse3 .cse2) (or .cse1 .cse3 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~waterLevel~0 0)) (< |old(~pumpRunning~0)| 1)))) [2023-11-19 05:12:41,353 INFO L895 garLoopResultBuilder]: At program point L653(line 653) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse2 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 1)) .cse2) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (or (= ~waterLevel~0 0) (< 0 |processEnvironment__wrappee__lowWaterSensor_~tmp~5#1|))) .cse1 .cse3 (< |old(~pumpRunning~0)| 1)) (or .cse0 .cse1 .cse3 .cse2))) [2023-11-19 05:12:41,353 INFO L899 garLoopResultBuilder]: For program point L651(lines 651 659) no Hoare annotation was computed. [2023-11-19 05:12:41,353 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 643 667) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (= ~pumpRunning~0 0)) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse4 (not (= ~methAndRunningLastTime~0 0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 .cse1 (< |old(~pumpRunning~0)| 1)) (or .cse2 .cse3 .cse0 (not (= ~methaneLevelCritical~0 1)) .cse4) (or .cse2 .cse3 .cse0 .cse1 .cse4))) [2023-11-19 05:12:41,353 INFO L899 garLoopResultBuilder]: For program point L647(lines 647 664) no Hoare annotation was computed. [2023-11-19 05:12:41,353 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__lowWaterSensorEXIT(lines 643 667) no Hoare annotation was computed. [2023-11-19 05:12:41,354 INFO L895 garLoopResultBuilder]: At program point L662(line 662) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0))) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse3 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 1)) .cse3) (or .cse2 .cse4 (< |old(~pumpRunning~0)| 1)) (or .cse0 .cse1 .cse2 .cse4 .cse3))) [2023-11-19 05:12:41,354 INFO L899 garLoopResultBuilder]: For program point L662-1(lines 643 667) no Hoare annotation was computed. [2023-11-19 05:12:41,356 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:12:41,359 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 05:12:41,392 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:12:41 BoogieIcfgContainer [2023-11-19 05:12:41,392 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 05:12:41,393 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 05:12:41,393 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 05:12:41,393 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 05:12:41,394 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:12:03" (3/4) ... [2023-11-19 05:12:41,398 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 05:12:41,401 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2023-11-19 05:12:41,402 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2023-11-19 05:12:41,402 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2023-11-19 05:12:41,402 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2023-11-19 05:12:41,402 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2023-11-19 05:12:41,402 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2023-11-19 05:12:41,402 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2023-11-19 05:12:41,403 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2023-11-19 05:12:41,403 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__lowWaterSensor [2023-11-19 05:12:41,422 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 44 nodes and edges [2023-11-19 05:12:41,422 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2023-11-19 05:12:41,423 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-19 05:12:41,424 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 05:12:41,425 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 05:12:41,460 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((!((\old(pumpRunning) == 0)) || ((pumpRunning == 0) && (\old(waterLevel) == waterLevel))) || !((methaneLevelCritical == 0))) || !((0 == systemActive))) && ((((!((\old(pumpRunning) == 0)) || !((\old(methAndRunningLastTime) == 0))) || (methAndRunningLastTime == 0)) || !((methaneLevelCritical == 0))) || !((0 == systemActive)))) && ((((!((\old(pumpRunning) == 0)) || !((\old(methAndRunningLastTime) == 0))) || !((1 == systemActive))) || (((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (\old(waterLevel) == waterLevel))) || !((methaneLevelCritical == 1)))) && (((!((\old(pumpRunning) == 0)) || ((pumpRunning == 0) && (\old(waterLevel) == waterLevel))) || !((methaneLevelCritical == 1))) || !((0 == systemActive)))) && (((((((1 <= pumpRunning) && (pumpRunning == \old(pumpRunning))) && (1 == systemActive)) && (\old(waterLevel) == waterLevel)) || !((1 == systemActive))) || !((methaneLevelCritical == 1))) || (\old(pumpRunning) < 1))) && (((((((1 <= pumpRunning) && (pumpRunning == \old(pumpRunning))) && (1 == systemActive)) && (\old(waterLevel) == waterLevel)) || !((1 == systemActive))) || !((methaneLevelCritical == 0))) || (\old(pumpRunning) < 1))) && ((((!((\old(pumpRunning) == 0)) || !((\old(methAndRunningLastTime) == 0))) || !((1 == systemActive))) || (((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (\old(waterLevel) == waterLevel))) || !((methaneLevelCritical == 0)))) && ((((!((\old(methAndRunningLastTime) == 0)) || (methAndRunningLastTime == 0)) || !((1 == systemActive))) || !((methaneLevelCritical == 0))) || (\old(pumpRunning) < 1))) [2023-11-19 05:12:41,531 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((!((\old(pumpRunning) == 0)) || ((pumpRunning == 0) && (\old(waterLevel) == waterLevel))) || !((methaneLevelCritical == 0))) || !((0 == systemActive))) && ((((!((\old(pumpRunning) == 0)) || !((\old(methAndRunningLastTime) == 0))) || (methAndRunningLastTime == 0)) || !((methaneLevelCritical == 0))) || !((0 == systemActive)))) && ((((!((\old(pumpRunning) == 0)) || !((\old(methAndRunningLastTime) == 0))) || !((1 == systemActive))) || (((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (\old(waterLevel) == waterLevel))) || !((methaneLevelCritical == 1)))) && (((!((\old(pumpRunning) == 0)) || ((pumpRunning == 0) && (\old(waterLevel) == waterLevel))) || !((methaneLevelCritical == 1))) || !((0 == systemActive)))) && (((((((1 <= pumpRunning) && (pumpRunning == \old(pumpRunning))) && (1 == systemActive)) && (\old(waterLevel) == waterLevel)) || !((1 == systemActive))) || !((methaneLevelCritical == 1))) || (\old(pumpRunning) < 1))) && (((((((1 <= pumpRunning) && (pumpRunning == \old(pumpRunning))) && (1 == systemActive)) && (\old(waterLevel) == waterLevel)) || !((1 == systemActive))) || !((methaneLevelCritical == 0))) || (\old(pumpRunning) < 1))) && ((((!((\old(pumpRunning) == 0)) || !((\old(methAndRunningLastTime) == 0))) || !((1 == systemActive))) || (((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (\old(waterLevel) == waterLevel))) || !((methaneLevelCritical == 0)))) && ((((!((\old(methAndRunningLastTime) == 0)) || (methAndRunningLastTime == 0)) || !((1 == systemActive))) || !((methaneLevelCritical == 0))) || (\old(pumpRunning) < 1))) [2023-11-19 05:12:41,589 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73726008-512c-4a74-81f6-661c7b012817/bin/utaipan-verify-t7M7D8N6sZ/witness.graphml [2023-11-19 05:12:41,590 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73726008-512c-4a74-81f6-661c7b012817/bin/utaipan-verify-t7M7D8N6sZ/witness.yml [2023-11-19 05:12:41,590 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 05:12:41,590 INFO L158 Benchmark]: Toolchain (without parser) took 39628.38ms. Allocated memory was 180.4MB in the beginning and 836.8MB in the end (delta: 656.4MB). Free memory was 133.4MB in the beginning and 730.4MB in the end (delta: -597.0MB). Peak memory consumption was 61.0MB. Max. memory is 16.1GB. [2023-11-19 05:12:41,591 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 117.4MB. Free memory is still 63.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:12:41,591 INFO L158 Benchmark]: CACSL2BoogieTranslator took 558.69ms. Allocated memory is still 180.4MB. Free memory was 133.4MB in the beginning and 113.3MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-19 05:12:41,591 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.13ms. Allocated memory is still 180.4MB. Free memory was 113.3MB in the beginning and 111.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:12:41,592 INFO L158 Benchmark]: Boogie Preprocessor took 66.31ms. Allocated memory is still 180.4MB. Free memory was 111.2MB in the beginning and 109.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:12:41,592 INFO L158 Benchmark]: RCFGBuilder took 743.05ms. Allocated memory is still 180.4MB. Free memory was 109.5MB in the beginning and 144.3MB in the end (delta: -34.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-19 05:12:41,592 INFO L158 Benchmark]: TraceAbstraction took 37998.78ms. Allocated memory was 180.4MB in the beginning and 836.8MB in the end (delta: 656.4MB). Free memory was 143.7MB in the beginning and 738.8MB in the end (delta: -595.1MB). Peak memory consumption was 505.9MB. Max. memory is 16.1GB. [2023-11-19 05:12:41,593 INFO L158 Benchmark]: Witness Printer took 196.87ms. Allocated memory is still 836.8MB. Free memory was 738.8MB in the beginning and 730.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 05:12:41,595 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 117.4MB. Free memory is still 63.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 558.69ms. Allocated memory is still 180.4MB. Free memory was 133.4MB in the beginning and 113.3MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.13ms. Allocated memory is still 180.4MB. Free memory was 113.3MB in the beginning and 111.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.31ms. Allocated memory is still 180.4MB. Free memory was 111.2MB in the beginning and 109.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 743.05ms. Allocated memory is still 180.4MB. Free memory was 109.5MB in the beginning and 144.3MB in the end (delta: -34.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 37998.78ms. Allocated memory was 180.4MB in the beginning and 836.8MB in the end (delta: 656.4MB). Free memory was 143.7MB in the beginning and 738.8MB in the end (delta: -595.1MB). Peak memory consumption was 505.9MB. Max. memory is 16.1GB. * Witness Printer took 196.87ms. Allocated memory is still 836.8MB. Free memory was 738.8MB in the beginning and 730.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] - GenericResultAtLocation [Line: 415]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [415] - GenericResultAtLocation [Line: 424]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [424] - GenericResultAtLocation [Line: 535]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [535] - GenericResultAtLocation [Line: 575]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [575] - GenericResultAtLocation [Line: 827]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [827] - GenericResultAtLocation [Line: 897]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [897] - GenericResultAtLocation [Line: 935]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [935] * 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: 420]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 37.9s, OverallIterations: 12, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 9.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 13.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2290 SdHoareTripleChecker+Valid, 4.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2263 mSDsluCounter, 3646 SdHoareTripleChecker+Invalid, 4.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2732 mSDsCounter, 1008 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6290 IncrementalHoareTripleChecker+Invalid, 7298 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1008 mSolverCounterUnsat, 914 mSDtfsCounter, 6290 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 736 GetRequests, 485 SyntacticMatches, 5 SemanticMatches, 246 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12153 ImplicationChecksByTransitivity, 8.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1797occurred in iteration=11, InterpolantAutomatonStates: 187, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 12 MinimizatonAttempts, 722 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 28 LocationsWithAnnotation, 2564 PreInvPairs, 2847 NumberOfFragments, 2230 HoareAnnotationTreeSize, 2564 FomulaSimplifications, 25727 FormulaSimplificationTreeSizeReduction, 2.6s HoareSimplificationTime, 28 FomulaSimplificationsInter, 57361 FormulaSimplificationTreeSizeReductionInter, 10.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 951 NumberOfCodeBlocks, 951 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1015 ConstructedInterpolants, 0 QuantifiedInterpolants, 2226 SizeOfPredicates, 17 NumberOfNonLiveVariables, 1302 ConjunctsInSsa, 60 ConjunctsInUnsatCore, 17 InterpolantComputations, 11 PerfectInterpolantSequences, 385/426 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: 947]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 838]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 839]: Loop Invariant Derived loop invariant: (((((((((1 <= pumpRunning) && (1 == systemActive)) && (methaneLevelCritical == 1)) && (splverifierCounter == 0)) || (((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 == systemActive)) && (methaneLevelCritical == 1)) && (splverifierCounter == 0))) || (((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (splverifierCounter == 0))) || (((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (methaneLevelCritical == 0)) && (splverifierCounter == 0)) && (0 == systemActive))) || ((((1 <= pumpRunning) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (splverifierCounter == 0))) || (((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (methaneLevelCritical == 1)) && (splverifierCounter == 0)) && (0 == systemActive))) - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: ((((((((((!((\old(pumpRunning) == 0)) || ((pumpRunning == 0) && (\old(waterLevel) == waterLevel))) || !((methaneLevelCritical == 0))) || !((0 == systemActive))) && ((((!((\old(pumpRunning) == 0)) || !((\old(methAndRunningLastTime) == 0))) || (methAndRunningLastTime == 0)) || !((methaneLevelCritical == 0))) || !((0 == systemActive)))) && ((((!((\old(pumpRunning) == 0)) || !((\old(methAndRunningLastTime) == 0))) || !((1 == systemActive))) || (((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (\old(waterLevel) == waterLevel))) || !((methaneLevelCritical == 1)))) && (((!((\old(pumpRunning) == 0)) || ((pumpRunning == 0) && (\old(waterLevel) == waterLevel))) || !((methaneLevelCritical == 1))) || !((0 == systemActive)))) && (((((((1 <= pumpRunning) && (pumpRunning == \old(pumpRunning))) && (1 == systemActive)) && (\old(waterLevel) == waterLevel)) || !((1 == systemActive))) || !((methaneLevelCritical == 1))) || (\old(pumpRunning) < 1))) && (((((((1 <= pumpRunning) && (pumpRunning == \old(pumpRunning))) && (1 == systemActive)) && (\old(waterLevel) == waterLevel)) || !((1 == systemActive))) || !((methaneLevelCritical == 0))) || (\old(pumpRunning) < 1))) && ((((!((\old(pumpRunning) == 0)) || !((\old(methAndRunningLastTime) == 0))) || !((1 == systemActive))) || (((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (\old(waterLevel) == waterLevel))) || !((methaneLevelCritical == 0)))) && ((((!((\old(methAndRunningLastTime) == 0)) || (methAndRunningLastTime == 0)) || !((1 == systemActive))) || !((methaneLevelCritical == 0))) || (\old(pumpRunning) < 1))) RESULT: Ultimate proved your program to be correct! [2023-11-19 05:12:41,624 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73726008-512c-4a74-81f6-661c7b012817/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE