./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product42.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_162c26bc-06b3-48ea-a24f-c274c9c7c6e0/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162c26bc-06b3-48ea-a24f-c274c9c7c6e0/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_162c26bc-06b3-48ea-a24f-c274c9c7c6e0/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162c26bc-06b3-48ea-a24f-c274c9c7c6e0/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product42.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162c26bc-06b3-48ea-a24f-c274c9c7c6e0/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_162c26bc-06b3-48ea-a24f-c274c9c7c6e0/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 449370313253a0d5d7b509b2cd15e912fe8e85dcb7140575e7078385cf7fc6cf --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:13:05,301 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:13:05,400 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162c26bc-06b3-48ea-a24f-c274c9c7c6e0/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 04:13:05,408 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:13:05,409 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:13:05,463 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:13:05,464 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:13:05,465 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:13:05,466 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:13:05,467 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:13:05,472 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:13:05,474 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:13:05,475 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:13:05,482 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:13:05,483 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:13:05,483 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:13:05,485 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:13:05,486 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:13:05,487 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:13:05,487 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:13:05,489 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:13:05,490 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:13:05,491 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:13:05,492 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:13:05,492 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:13:05,493 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:13:05,494 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:13:05,494 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:13:05,495 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:13:05,495 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:13:05,496 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:13:05,496 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:13:05,497 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:13:05,497 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:13:05,497 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:13:05,498 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:13:05,498 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:13:05,498 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:13:05,499 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:13:05,499 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:13:05,499 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:13:05,500 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:13:05,500 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:13:05,500 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:13:05,501 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:13:05,501 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_162c26bc-06b3-48ea-a24f-c274c9c7c6e0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162c26bc-06b3-48ea-a24f-c274c9c7c6e0/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 449370313253a0d5d7b509b2cd15e912fe8e85dcb7140575e7078385cf7fc6cf [2023-11-19 04:13:05,907 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:13:05,957 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:13:05,960 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:13:05,962 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:13:05,963 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:13:05,966 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162c26bc-06b3-48ea-a24f-c274c9c7c6e0/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/product-lines/minepump_spec3_product42.cil.c [2023-11-19 04:13:09,732 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:13:09,984 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:13:09,985 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162c26bc-06b3-48ea-a24f-c274c9c7c6e0/sv-benchmarks/c/product-lines/minepump_spec3_product42.cil.c [2023-11-19 04:13:10,002 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162c26bc-06b3-48ea-a24f-c274c9c7c6e0/bin/utaipan-verify-t7M7D8N6sZ/data/589226e02/2b6510e8af254e9f84a6062989b11562/FLAG7d7e22416 [2023-11-19 04:13:10,017 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162c26bc-06b3-48ea-a24f-c274c9c7c6e0/bin/utaipan-verify-t7M7D8N6sZ/data/589226e02/2b6510e8af254e9f84a6062989b11562 [2023-11-19 04:13:10,020 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:13:10,023 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:13:10,027 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:13:10,027 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:13:10,033 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:13:10,034 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:13:10" (1/1) ... [2023-11-19 04:13:10,036 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bb338a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:13:10, skipping insertion in model container [2023-11-19 04:13:10,036 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:13:10" (1/1) ... [2023-11-19 04:13:10,118 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:13:10,378 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_162c26bc-06b3-48ea-a24f-c274c9c7c6e0/sv-benchmarks/c/product-lines/minepump_spec3_product42.cil.c[7477,7490] [2023-11-19 04:13:10,463 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:13:10,477 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:13:10,489 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [49] [2023-11-19 04:13:10,491 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [153] [2023-11-19 04:13:10,491 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [221] [2023-11-19 04:13:10,492 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [407] [2023-11-19 04:13:10,492 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [502] [2023-11-19 04:13:10,492 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [511] [2023-11-19 04:13:10,493 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [546] [2023-11-19 04:13:10,493 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [912] [2023-11-19 04:13:10,519 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_162c26bc-06b3-48ea-a24f-c274c9c7c6e0/sv-benchmarks/c/product-lines/minepump_spec3_product42.cil.c[7477,7490] [2023-11-19 04:13:10,561 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:13:10,583 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:13:10,584 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:13:10 WrapperNode [2023-11-19 04:13:10,584 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:13:10,585 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:13:10,586 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:13:10,586 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:13:10,594 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:13:10" (1/1) ... [2023-11-19 04:13:10,631 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:13:10" (1/1) ... [2023-11-19 04:13:10,666 INFO L138 Inliner]: procedures = 54, calls = 97, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 196 [2023-11-19 04:13:10,667 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:13:10,668 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:13:10,668 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:13:10,668 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:13:10,678 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:13:10" (1/1) ... [2023-11-19 04:13:10,679 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:13:10" (1/1) ... [2023-11-19 04:13:10,682 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:13:10" (1/1) ... [2023-11-19 04:13:10,682 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:13:10" (1/1) ... [2023-11-19 04:13:10,692 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:13:10" (1/1) ... [2023-11-19 04:13:10,698 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:13:10" (1/1) ... [2023-11-19 04:13:10,700 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:13:10" (1/1) ... [2023-11-19 04:13:10,702 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:13:10" (1/1) ... [2023-11-19 04:13:10,705 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:13:10,706 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:13:10,706 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:13:10,706 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:13:10,707 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:13:10" (1/1) ... [2023-11-19 04:13:10,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:13:10,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162c26bc-06b3-48ea-a24f-c274c9c7c6e0/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:13:10,747 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162c26bc-06b3-48ea-a24f-c274c9c7c6e0/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:13:10,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162c26bc-06b3-48ea-a24f-c274c9c7c6e0/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:13:10,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:13:10,820 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-11-19 04:13:10,820 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-11-19 04:13:10,820 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-11-19 04:13:10,820 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-11-19 04:13:10,820 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-19 04:13:10,821 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-19 04:13:10,821 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-19 04:13:10,821 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-19 04:13:10,822 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-19 04:13:10,823 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-19 04:13:10,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:13:10,823 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-19 04:13:10,824 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-19 04:13:10,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:13:10,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:13:10,962 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:13:10,965 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:13:11,331 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:13:11,440 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:13:11,441 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 04:13:11,446 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:13:11 BoogieIcfgContainer [2023-11-19 04:13:11,446 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:13:11,449 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:13:11,449 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:13:11,453 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:13:11,453 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:13:10" (1/3) ... [2023-11-19 04:13:11,454 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3030d6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:13:11, skipping insertion in model container [2023-11-19 04:13:11,454 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:13:10" (2/3) ... [2023-11-19 04:13:11,454 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3030d6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:13:11, skipping insertion in model container [2023-11-19 04:13:11,455 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:13:11" (3/3) ... [2023-11-19 04:13:11,456 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product42.cil.c [2023-11-19 04:13:11,478 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:13:11,478 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:13:11,537 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:13:11,545 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;@13f4b7e4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:13:11,545 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:13:11,550 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 39 states have internal predecessors, (47), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-19 04:13:11,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-19 04:13:11,559 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:13:11,560 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 04:13:11,561 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:13:11,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:13:11,567 INFO L85 PathProgramCache]: Analyzing trace with hash -174126915, now seen corresponding path program 1 times [2023-11-19 04:13:11,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:13:11,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139809792] [2023-11-19 04:13:11,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:13:11,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:13:11,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:13:11,833 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 04:13:11,834 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:13:11,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139809792] [2023-11-19 04:13:11,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139809792] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:13:11,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:13:11,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:13:11,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672106206] [2023-11-19 04:13:11,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:13:11,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 04:13:11,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:13:11,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 04:13:11,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:13:11,914 INFO L87 Difference]: Start difference. First operand has 51 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 39 states have internal predecessors, (47), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 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 04:13:12,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:13:12,036 INFO L93 Difference]: Finished difference Result 100 states and 135 transitions. [2023-11-19 04:13:12,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 04:13:12,042 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 04:13:12,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:13:12,053 INFO L225 Difference]: With dead ends: 100 [2023-11-19 04:13:12,054 INFO L226 Difference]: Without dead ends: 46 [2023-11-19 04:13:12,059 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 04:13:12,064 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:13:12,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 48 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:13:12,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2023-11-19 04:13:12,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2023-11-19 04:13:12,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 30 states have (on average 1.3) internal successors, (39), 35 states have internal predecessors, (39), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 04:13:12,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 58 transitions. [2023-11-19 04:13:12,114 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 58 transitions. Word has length 17 [2023-11-19 04:13:12,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:13:12,115 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 58 transitions. [2023-11-19 04:13:12,115 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 04:13:12,116 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 58 transitions. [2023-11-19 04:13:12,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-19 04:13:12,118 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:13:12,118 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 04:13:12,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:13:12,119 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:13:12,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:13:12,120 INFO L85 PathProgramCache]: Analyzing trace with hash -567626919, now seen corresponding path program 1 times [2023-11-19 04:13:12,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:13:12,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570052454] [2023-11-19 04:13:12,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:13:12,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:13:12,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:13:12,245 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 04:13:12,246 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:13:12,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570052454] [2023-11-19 04:13:12,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570052454] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:13:12,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:13:12,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:13:12,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677597579] [2023-11-19 04:13:12,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:13:12,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:13:12,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:13:12,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:13:12,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:13:12,251 INFO L87 Difference]: Start difference. First operand 46 states and 58 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 04:13:12,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:13:12,304 INFO L93 Difference]: Finished difference Result 69 states and 87 transitions. [2023-11-19 04:13:12,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:13:12,305 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 04:13:12,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:13:12,307 INFO L225 Difference]: With dead ends: 69 [2023-11-19 04:13:12,308 INFO L226 Difference]: Without dead ends: 38 [2023-11-19 04:13:12,309 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 04:13:12,313 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 7 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:13:12,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 59 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:13:12,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-11-19 04:13:12,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2023-11-19 04:13:12,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 25 states have (on average 1.32) internal successors, (33), 30 states have internal predecessors, (33), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-19 04:13:12,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 47 transitions. [2023-11-19 04:13:12,331 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 47 transitions. Word has length 18 [2023-11-19 04:13:12,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:13:12,332 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 47 transitions. [2023-11-19 04:13:12,332 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 04:13:12,333 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 47 transitions. [2023-11-19 04:13:12,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-19 04:13:12,336 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:13:12,336 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:13:12,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 04:13:12,337 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:13:12,338 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:13:12,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1391873564, now seen corresponding path program 1 times [2023-11-19 04:13:12,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:13:12,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893599870] [2023-11-19 04:13:12,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:13:12,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:13:12,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:13:12,763 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 04:13:12,764 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:13:12,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893599870] [2023-11-19 04:13:12,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893599870] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:13:12,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:13:12,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 04:13:12,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909114293] [2023-11-19 04:13:12,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:13:12,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:13:12,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:13:12,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:13:12,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:13:12,773 INFO L87 Difference]: Start difference. First operand 38 states and 47 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 04:13:12,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:13:12,917 INFO L93 Difference]: Finished difference Result 74 states and 93 transitions. [2023-11-19 04:13:12,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 04:13:12,918 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2023-11-19 04:13:12,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:13:12,919 INFO L225 Difference]: With dead ends: 74 [2023-11-19 04:13:12,920 INFO L226 Difference]: Without dead ends: 38 [2023-11-19 04:13:12,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:13:12,923 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 37 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:13:12,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 41 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:13:12,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-11-19 04:13:12,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2023-11-19 04:13:12,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 25 states have (on average 1.28) internal successors, (32), 30 states have internal predecessors, (32), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-19 04:13:12,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 46 transitions. [2023-11-19 04:13:12,935 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 46 transitions. Word has length 20 [2023-11-19 04:13:12,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:13:12,936 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 46 transitions. [2023-11-19 04:13:12,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 04:13:12,936 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions. [2023-11-19 04:13:12,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-19 04:13:12,938 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:13:12,938 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] [2023-11-19 04:13:12,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 04:13:12,939 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:13:12,939 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:13:12,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1299960711, now seen corresponding path program 1 times [2023-11-19 04:13:12,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:13:12,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800081723] [2023-11-19 04:13:12,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:13:12,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:13:12,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:13:13,030 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 04:13:13,031 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:13:13,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800081723] [2023-11-19 04:13:13,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800081723] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:13:13,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:13:13,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:13:13,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385860874] [2023-11-19 04:13:13,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:13:13,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:13:13,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:13:13,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:13:13,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:13:13,034 INFO L87 Difference]: Start difference. First operand 38 states and 46 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 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 04:13:13,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:13:13,094 INFO L93 Difference]: Finished difference Result 105 states and 128 transitions. [2023-11-19 04:13:13,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:13:13,095 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 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 25 [2023-11-19 04:13:13,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:13:13,097 INFO L225 Difference]: With dead ends: 105 [2023-11-19 04:13:13,097 INFO L226 Difference]: Without dead ends: 69 [2023-11-19 04:13:13,098 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 04:13:13,100 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 32 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:13:13,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 67 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:13:13,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2023-11-19 04:13:13,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 67. [2023-11-19 04:13:13,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 45 states have (on average 1.2666666666666666) internal successors, (57), 51 states have internal predecessors, (57), 11 states have call successors, (11), 10 states have call predecessors, (11), 10 states have return successors, (13), 11 states have call predecessors, (13), 11 states have call successors, (13) [2023-11-19 04:13:13,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 81 transitions. [2023-11-19 04:13:13,121 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 81 transitions. Word has length 25 [2023-11-19 04:13:13,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:13:13,122 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 81 transitions. [2023-11-19 04:13:13,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 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 04:13:13,123 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 81 transitions. [2023-11-19 04:13:13,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-19 04:13:13,124 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:13:13,124 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] [2023-11-19 04:13:13,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 04:13:13,125 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:13:13,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:13:13,126 INFO L85 PathProgramCache]: Analyzing trace with hash -676911168, now seen corresponding path program 1 times [2023-11-19 04:13:13,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:13:13,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191498193] [2023-11-19 04:13:13,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:13:13,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:13:13,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:13:13,353 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 04:13:13,354 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:13:13,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191498193] [2023-11-19 04:13:13,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191498193] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:13:13,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:13:13,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 04:13:13,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031816307] [2023-11-19 04:13:13,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:13:13,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:13:13,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:13:13,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:13:13,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:13:13,357 INFO L87 Difference]: Start difference. First operand 67 states and 81 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 04:13:13,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:13:13,497 INFO L93 Difference]: Finished difference Result 188 states and 232 transitions. [2023-11-19 04:13:13,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 04:13:13,497 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 26 [2023-11-19 04:13:13,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:13:13,500 INFO L225 Difference]: With dead ends: 188 [2023-11-19 04:13:13,500 INFO L226 Difference]: Without dead ends: 123 [2023-11-19 04:13:13,501 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-19 04:13:13,503 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 48 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:13:13,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 134 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:13:13,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2023-11-19 04:13:13,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 106. [2023-11-19 04:13:13,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 72 states have (on average 1.2361111111111112) internal successors, (89), 80 states have internal predecessors, (89), 17 states have call successors, (17), 15 states have call predecessors, (17), 16 states have return successors, (20), 17 states have call predecessors, (20), 17 states have call successors, (20) [2023-11-19 04:13:13,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 126 transitions. [2023-11-19 04:13:13,529 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 126 transitions. Word has length 26 [2023-11-19 04:13:13,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:13:13,530 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 126 transitions. [2023-11-19 04:13:13,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 04:13:13,530 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 126 transitions. [2023-11-19 04:13:13,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-19 04:13:13,538 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:13:13,538 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, 1, 1] [2023-11-19 04:13:13,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 04:13:13,539 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:13:13,539 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:13:13,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1163530306, now seen corresponding path program 1 times [2023-11-19 04:13:13,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:13:13,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689567239] [2023-11-19 04:13:13,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:13:13,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:13:13,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:13:13,893 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 04:13:13,893 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:13:13,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689567239] [2023-11-19 04:13:13,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689567239] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:13:13,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:13:13,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 04:13:13,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427788241] [2023-11-19 04:13:13,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:13:13,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 04:13:13,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:13:13,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 04:13:13,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-19 04:13:13,897 INFO L87 Difference]: Start difference. First operand 106 states and 126 transitions. Second operand has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 04:13:14,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:13:14,387 INFO L93 Difference]: Finished difference Result 257 states and 320 transitions. [2023-11-19 04:13:14,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-19 04:13:14,388 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 29 [2023-11-19 04:13:14,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:13:14,392 INFO L225 Difference]: With dead ends: 257 [2023-11-19 04:13:14,392 INFO L226 Difference]: Without dead ends: 192 [2023-11-19 04:13:14,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-11-19 04:13:14,394 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 128 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 04:13:14,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 251 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 04:13:14,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2023-11-19 04:13:14,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 174. [2023-11-19 04:13:14,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 118 states have (on average 1.2627118644067796) internal successors, (149), 132 states have internal predecessors, (149), 30 states have call successors, (30), 23 states have call predecessors, (30), 25 states have return successors, (34), 29 states have call predecessors, (34), 30 states have call successors, (34) [2023-11-19 04:13:14,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 213 transitions. [2023-11-19 04:13:14,436 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 213 transitions. Word has length 29 [2023-11-19 04:13:14,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:13:14,436 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 213 transitions. [2023-11-19 04:13:14,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 04:13:14,437 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 213 transitions. [2023-11-19 04:13:14,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-19 04:13:14,438 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:13:14,438 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:13:14,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 04:13:14,439 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:13:14,439 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:13:14,440 INFO L85 PathProgramCache]: Analyzing trace with hash -417840833, now seen corresponding path program 1 times [2023-11-19 04:13:14,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:13:14,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340566447] [2023-11-19 04:13:14,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:13:14,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:13:14,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:13:14,621 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 04:13:14,622 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:13:14,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340566447] [2023-11-19 04:13:14,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340566447] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 04:13:14,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [861307238] [2023-11-19 04:13:14,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:13:14,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:13:14,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162c26bc-06b3-48ea-a24f-c274c9c7c6e0/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:13:14,625 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162c26bc-06b3-48ea-a24f-c274c9c7c6e0/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 04:13:14,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162c26bc-06b3-48ea-a24f-c274c9c7c6e0/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 04:13:14,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:13:14,733 INFO L262 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-19 04:13:14,739 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:13:14,852 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:13:14,853 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 04:13:14,958 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 04:13:14,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [861307238] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 04:13:14,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1733293412] [2023-11-19 04:13:14,981 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2023-11-19 04:13:14,981 INFO L166 IcfgInterpreter]: Building call graph [2023-11-19 04:13:14,986 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-19 04:13:14,992 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-19 04:13:14,992 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-19 04:13:16,415 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 120 for LOIs [2023-11-19 04:13:16,478 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 136 for LOIs [2023-11-19 04:13:18,190 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 141 for LOIs [2023-11-19 04:13:18,407 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-19 04:13:26,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1733293412] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:13:26,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-11-19 04:13:26,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [7, 6, 7] total 32 [2023-11-19 04:13:26,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372940903] [2023-11-19 04:13:26,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:13:26,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-19 04:13:26,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:13:26,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-19 04:13:26,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=854, Unknown=0, NotChecked=0, Total=992 [2023-11-19 04:13:26,125 INFO L87 Difference]: Start difference. First operand 174 states and 213 transitions. Second operand has 24 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 18 states have internal predecessors, (22), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 04:13:31,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:13:31,699 INFO L93 Difference]: Finished difference Result 364 states and 448 transitions. [2023-11-19 04:13:31,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-19 04:13:31,700 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 18 states have internal predecessors, (22), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 30 [2023-11-19 04:13:31,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:13:31,713 INFO L225 Difference]: With dead ends: 364 [2023-11-19 04:13:31,713 INFO L226 Difference]: Without dead ends: 244 [2023-11-19 04:13:31,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 63 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 396 ImplicationChecksByTransitivity, 11.5s TimeCoverageRelationStatistics Valid=208, Invalid=1432, Unknown=0, NotChecked=0, Total=1640 [2023-11-19 04:13:31,719 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 50 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 856 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-19 04:13:31,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 291 Invalid, 888 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 856 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-19 04:13:31,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2023-11-19 04:13:31,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 224. [2023-11-19 04:13:31,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 154 states have (on average 1.2337662337662338) internal successors, (190), 169 states have internal predecessors, (190), 37 states have call successors, (37), 30 states have call predecessors, (37), 32 states have return successors, (41), 35 states have call predecessors, (41), 37 states have call successors, (41) [2023-11-19 04:13:31,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 268 transitions. [2023-11-19 04:13:31,808 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 268 transitions. Word has length 30 [2023-11-19 04:13:31,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:13:31,809 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 268 transitions. [2023-11-19 04:13:31,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 18 states have internal predecessors, (22), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 04:13:31,809 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 268 transitions. [2023-11-19 04:13:31,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-19 04:13:31,811 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:13:31,811 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:13:31,827 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162c26bc-06b3-48ea-a24f-c274c9c7c6e0/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 04:13:32,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162c26bc-06b3-48ea-a24f-c274c9c7c6e0/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:13:32,019 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:13:32,020 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:13:32,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1288118345, now seen corresponding path program 1 times [2023-11-19 04:13:32,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:13:32,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179189738] [2023-11-19 04:13:32,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:13:32,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:13:32,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:13:32,229 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 04:13:32,230 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:13:32,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179189738] [2023-11-19 04:13:32,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179189738] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:13:32,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:13:32,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-19 04:13:32,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005889761] [2023-11-19 04:13:32,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:13:32,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 04:13:32,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:13:32,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 04:13:32,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-11-19 04:13:32,237 INFO L87 Difference]: Start difference. First operand 224 states and 268 transitions. Second operand has 10 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 04:13:32,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:13:32,782 INFO L93 Difference]: Finished difference Result 591 states and 733 transitions. [2023-11-19 04:13:32,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-19 04:13:32,783 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 33 [2023-11-19 04:13:32,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:13:32,797 INFO L225 Difference]: With dead ends: 591 [2023-11-19 04:13:32,797 INFO L226 Difference]: Without dead ends: 419 [2023-11-19 04:13:32,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2023-11-19 04:13:32,799 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 113 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 04:13:32,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 108 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 04:13:32,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2023-11-19 04:13:32,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 382. [2023-11-19 04:13:32,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 257 states have (on average 1.1945525291828794) internal successors, (307), 285 states have internal predecessors, (307), 67 states have call successors, (67), 53 states have call predecessors, (67), 57 states have return successors, (75), 64 states have call predecessors, (75), 67 states have call successors, (75) [2023-11-19 04:13:32,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 449 transitions. [2023-11-19 04:13:32,900 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 449 transitions. Word has length 33 [2023-11-19 04:13:32,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:13:32,901 INFO L495 AbstractCegarLoop]: Abstraction has 382 states and 449 transitions. [2023-11-19 04:13:32,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 04:13:32,901 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 449 transitions. [2023-11-19 04:13:32,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-19 04:13:32,911 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:13:32,911 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2023-11-19 04:13:32,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 04:13:32,912 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:13:32,913 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:13:32,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1225816066, now seen corresponding path program 1 times [2023-11-19 04:13:32,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:13:32,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843137525] [2023-11-19 04:13:32,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:13:32,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:13:32,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:13:33,122 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-19 04:13:33,122 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:13:33,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843137525] [2023-11-19 04:13:33,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843137525] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 04:13:33,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1243696169] [2023-11-19 04:13:33,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:13:33,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:13:33,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162c26bc-06b3-48ea-a24f-c274c9c7c6e0/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:13:33,128 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162c26bc-06b3-48ea-a24f-c274c9c7c6e0/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 04:13:33,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162c26bc-06b3-48ea-a24f-c274c9c7c6e0/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 04:13:33,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:13:33,225 INFO L262 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-19 04:13:33,229 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:13:33,439 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 04:13:33,439 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:13:33,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1243696169] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:13:33,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 04:13:33,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 15 [2023-11-19 04:13:33,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681665752] [2023-11-19 04:13:33,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:13:33,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 04:13:33,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:13:33,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 04:13:33,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2023-11-19 04:13:33,443 INFO L87 Difference]: Start difference. First operand 382 states and 449 transitions. Second operand has 9 states, 8 states have (on average 4.875) internal successors, (39), 9 states have internal predecessors, (39), 4 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-19 04:13:33,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:13:33,931 INFO L93 Difference]: Finished difference Result 745 states and 921 transitions. [2023-11-19 04:13:33,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-19 04:13:33,932 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.875) internal successors, (39), 9 states have internal predecessors, (39), 4 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) Word has length 53 [2023-11-19 04:13:33,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:13:33,938 INFO L225 Difference]: With dead ends: 745 [2023-11-19 04:13:33,938 INFO L226 Difference]: Without dead ends: 550 [2023-11-19 04:13:33,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=113, Invalid=537, Unknown=0, NotChecked=0, Total=650 [2023-11-19 04:13:33,942 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 70 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 04:13:33,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 171 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 04:13:33,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2023-11-19 04:13:34,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 514. [2023-11-19 04:13:34,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 345 states have (on average 1.1971014492753622) internal successors, (413), 389 states have internal predecessors, (413), 91 states have call successors, (91), 65 states have call predecessors, (91), 77 states have return successors, (131), 88 states have call predecessors, (131), 91 states have call successors, (131) [2023-11-19 04:13:34,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 635 transitions. [2023-11-19 04:13:34,044 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 635 transitions. Word has length 53 [2023-11-19 04:13:34,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:13:34,044 INFO L495 AbstractCegarLoop]: Abstraction has 514 states and 635 transitions. [2023-11-19 04:13:34,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.875) internal successors, (39), 9 states have internal predecessors, (39), 4 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-19 04:13:34,045 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 635 transitions. [2023-11-19 04:13:34,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-19 04:13:34,047 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:13:34,048 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:13:34,071 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162c26bc-06b3-48ea-a24f-c274c9c7c6e0/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 04:13:34,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162c26bc-06b3-48ea-a24f-c274c9c7c6e0/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-19 04:13:34,268 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:13:34,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:13:34,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1403616916, now seen corresponding path program 1 times [2023-11-19 04:13:34,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:13:34,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000110317] [2023-11-19 04:13:34,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:13:34,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:13:34,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:13:34,426 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 6 proven. 11 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-19 04:13:34,426 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:13:34,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000110317] [2023-11-19 04:13:34,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000110317] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 04:13:34,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [486867007] [2023-11-19 04:13:34,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:13:34,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:13:34,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162c26bc-06b3-48ea-a24f-c274c9c7c6e0/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:13:34,432 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162c26bc-06b3-48ea-a24f-c274c9c7c6e0/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 04:13:34,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162c26bc-06b3-48ea-a24f-c274c9c7c6e0/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 04:13:34,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:13:34,521 INFO L262 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-19 04:13:34,524 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:13:34,615 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 20 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 04:13:34,615 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 04:13:34,769 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-19 04:13:34,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [486867007] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-19 04:13:34,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-19 04:13:34,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 17 [2023-11-19 04:13:34,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533780967] [2023-11-19 04:13:34,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:13:34,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 04:13:34,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:13:34,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 04:13:34,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2023-11-19 04:13:34,773 INFO L87 Difference]: Start difference. First operand 514 states and 635 transitions. Second operand has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-19 04:13:35,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:13:35,028 INFO L93 Difference]: Finished difference Result 874 states and 1107 transitions. [2023-11-19 04:13:35,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 04:13:35,029 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 54 [2023-11-19 04:13:35,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:13:35,036 INFO L225 Difference]: With dead ends: 874 [2023-11-19 04:13:35,036 INFO L226 Difference]: Without dead ends: 671 [2023-11-19 04:13:35,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 100 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2023-11-19 04:13:35,038 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 96 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:13:35,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 121 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:13:35,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states. [2023-11-19 04:13:35,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 614. [2023-11-19 04:13:35,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 614 states, 415 states have (on average 1.1879518072289157) internal successors, (493), 463 states have internal predecessors, (493), 107 states have call successors, (107), 79 states have call predecessors, (107), 91 states have return successors, (149), 104 states have call predecessors, (149), 107 states have call successors, (149) [2023-11-19 04:13:35,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 749 transitions. [2023-11-19 04:13:35,187 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 749 transitions. Word has length 54 [2023-11-19 04:13:35,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:13:35,187 INFO L495 AbstractCegarLoop]: Abstraction has 614 states and 749 transitions. [2023-11-19 04:13:35,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-19 04:13:35,188 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 749 transitions. [2023-11-19 04:13:35,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-19 04:13:35,190 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:13:35,190 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] [2023-11-19 04:13:35,221 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162c26bc-06b3-48ea-a24f-c274c9c7c6e0/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 04:13:35,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162c26bc-06b3-48ea-a24f-c274c9c7c6e0/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-19 04:13:35,404 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:13:35,404 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:13:35,404 INFO L85 PathProgramCache]: Analyzing trace with hash 1411528315, now seen corresponding path program 1 times [2023-11-19 04:13:35,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:13:35,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678620851] [2023-11-19 04:13:35,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:13:35,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:13:35,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:13:35,543 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-19 04:13:35,544 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:13:35,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678620851] [2023-11-19 04:13:35,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678620851] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:13:35,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:13:35,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 04:13:35,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713255669] [2023-11-19 04:13:35,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:13:35,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:13:35,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:13:35,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:13:35,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:13:35,547 INFO L87 Difference]: Start difference. First operand 614 states and 749 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-19 04:13:35,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:13:35,732 INFO L93 Difference]: Finished difference Result 982 states and 1209 transitions. [2023-11-19 04:13:35,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 04:13:35,733 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), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 55 [2023-11-19 04:13:35,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:13:35,738 INFO L225 Difference]: With dead ends: 982 [2023-11-19 04:13:35,738 INFO L226 Difference]: Without dead ends: 455 [2023-11-19 04:13:35,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:13:35,741 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 34 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:13:35,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 80 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:13:35,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2023-11-19 04:13:35,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 304. [2023-11-19 04:13:35,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 203 states have (on average 1.1379310344827587) internal successors, (231), 222 states have internal predecessors, (231), 52 states have call successors, (52), 46 states have call predecessors, (52), 48 states have return successors, (54), 46 states have call predecessors, (54), 52 states have call successors, (54) [2023-11-19 04:13:35,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 337 transitions. [2023-11-19 04:13:35,814 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 337 transitions. Word has length 55 [2023-11-19 04:13:35,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:13:35,815 INFO L495 AbstractCegarLoop]: Abstraction has 304 states and 337 transitions. [2023-11-19 04:13:35,815 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), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-19 04:13:35,816 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 337 transitions. [2023-11-19 04:13:35,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-19 04:13:35,818 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:13:35,819 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:13:35,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-19 04:13:35,819 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:13:35,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:13:35,824 INFO L85 PathProgramCache]: Analyzing trace with hash 881915982, now seen corresponding path program 1 times [2023-11-19 04:13:35,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:13:35,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920071130] [2023-11-19 04:13:35,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:13:35,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:13:35,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:13:36,266 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-19 04:13:36,266 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:13:36,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920071130] [2023-11-19 04:13:36,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920071130] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 04:13:36,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1009297995] [2023-11-19 04:13:36,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:13:36,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:13:36,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162c26bc-06b3-48ea-a24f-c274c9c7c6e0/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:13:36,272 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162c26bc-06b3-48ea-a24f-c274c9c7c6e0/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 04:13:36,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162c26bc-06b3-48ea-a24f-c274c9c7c6e0/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 04:13:36,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:13:36,364 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 04:13:36,367 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:13:36,450 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-19 04:13:36,450 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:13:36,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1009297995] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:13:36,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 04:13:36,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 14 [2023-11-19 04:13:36,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465285881] [2023-11-19 04:13:36,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:13:36,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:13:36,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:13:36,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:13:36,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-11-19 04:13:36,457 INFO L87 Difference]: Start difference. First operand 304 states and 337 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-19 04:13:36,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:13:36,638 INFO L93 Difference]: Finished difference Result 370 states and 413 transitions. [2023-11-19 04:13:36,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 04:13:36,639 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 59 [2023-11-19 04:13:36,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:13:36,645 INFO L225 Difference]: With dead ends: 370 [2023-11-19 04:13:36,646 INFO L226 Difference]: Without dead ends: 366 [2023-11-19 04:13:36,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2023-11-19 04:13:36,647 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 32 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:13:36,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 81 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:13:36,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2023-11-19 04:13:36,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 358. [2023-11-19 04:13:36,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 241 states have (on average 1.1410788381742738) internal successors, (275), 262 states have internal predecessors, (275), 60 states have call successors, (60), 54 states have call predecessors, (60), 56 states have return successors, (64), 54 states have call predecessors, (64), 60 states have call successors, (64) [2023-11-19 04:13:36,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 399 transitions. [2023-11-19 04:13:36,739 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 399 transitions. Word has length 59 [2023-11-19 04:13:36,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:13:36,740 INFO L495 AbstractCegarLoop]: Abstraction has 358 states and 399 transitions. [2023-11-19 04:13:36,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-19 04:13:36,740 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 399 transitions. [2023-11-19 04:13:36,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-19 04:13:36,742 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:13:36,742 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:13:36,769 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162c26bc-06b3-48ea-a24f-c274c9c7c6e0/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-19 04:13:36,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162c26bc-06b3-48ea-a24f-c274c9c7c6e0/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-19 04:13:36,955 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:13:36,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:13:36,956 INFO L85 PathProgramCache]: Analyzing trace with hash -718314354, now seen corresponding path program 2 times [2023-11-19 04:13:36,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:13:36,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827398928] [2023-11-19 04:13:36,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:13:36,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:13:36,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:13:37,291 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 10 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-19 04:13:37,292 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:13:37,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827398928] [2023-11-19 04:13:37,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827398928] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 04:13:37,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [348163830] [2023-11-19 04:13:37,292 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-19 04:13:37,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:13:37,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162c26bc-06b3-48ea-a24f-c274c9c7c6e0/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:13:37,296 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162c26bc-06b3-48ea-a24f-c274c9c7c6e0/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 04:13:37,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162c26bc-06b3-48ea-a24f-c274c9c7c6e0/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-19 04:13:37,383 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-19 04:13:37,384 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 04:13:37,386 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-19 04:13:37,389 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:13:37,504 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-19 04:13:37,504 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:13:37,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [348163830] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:13:37,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 04:13:37,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [12] total 17 [2023-11-19 04:13:37,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842045403] [2023-11-19 04:13:37,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:13:37,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 04:13:37,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:13:37,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 04:13:37,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2023-11-19 04:13:37,508 INFO L87 Difference]: Start difference. First operand 358 states and 399 transitions. Second operand has 10 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-19 04:13:37,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:13:37,890 INFO L93 Difference]: Finished difference Result 739 states and 851 transitions. [2023-11-19 04:13:37,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-19 04:13:37,890 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 59 [2023-11-19 04:13:37,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:13:37,891 INFO L225 Difference]: With dead ends: 739 [2023-11-19 04:13:37,891 INFO L226 Difference]: Without dead ends: 0 [2023-11-19 04:13:37,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=357, Unknown=0, NotChecked=0, Total=420 [2023-11-19 04:13:37,894 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 62 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 04:13:37,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 329 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 04:13:37,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-19 04:13:37,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-19 04:13:37,895 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 04:13:37,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 04:13:37,896 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 59 [2023-11-19 04:13:37,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:13:37,896 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 04:13:37,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-19 04:13:37,897 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-19 04:13:37,897 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 04:13:37,900 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 04:13:37,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162c26bc-06b3-48ea-a24f-c274c9c7c6e0/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-19 04:13:38,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162c26bc-06b3-48ea-a24f-c274c9c7c6e0/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-19 04:13:38,121 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-19 04:13:55,976 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 257 263) no Hoare annotation was computed. [2023-11-19 04:13:55,976 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 257 263) the Hoare annotation is: true [2023-11-19 04:13:55,977 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 435 446) the Hoare annotation is: (let ((.cse1 (<= 3 ~waterLevel~0)) (.cse0 (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 (< ~waterLevel~0 2) .cse2) (or (= ~pumpRunning~0 0) .cse0 .cse1 .cse2) (or (not (= ~waterLevel~0 1)) .cse0 .cse2))) [2023-11-19 04:13:55,977 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 435 446) no Hoare annotation was computed. [2023-11-19 04:13:55,977 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 447 455) the Hoare annotation is: true [2023-11-19 04:13:55,977 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 447 455) no Hoare annotation was computed. [2023-11-19 04:13:55,978 INFO L895 garLoopResultBuilder]: At program point L279(line 279) the Hoare annotation is: (let ((.cse6 (= |timeShift_processEnvironment_~tmp~2#1| 0)) (.cse7 (= ~methaneLevelCritical~0 0))) (let ((.cse2 (not .cse7)) (.cse0 (<= 3 |old(~waterLevel~0)|)) (.cse4 (and (= ~pumpRunning~0 0) (<= ~waterLevel~0 1) (or .cse6 (< 0 |timeShift_processEnvironment_~tmp~2#1|)) (= |old(~waterLevel~0)| ~waterLevel~0))) (.cse1 (= |old(~pumpRunning~0)| 0)) (.cse3 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse2 .cse3 .cse4) (let ((.cse5 (select |#memory_int| 1))) (or (not (= (select |#length| 12) 25)) (not (= (select .cse5 0) 48)) (not (= 9 (select |#length| 11))) (not (= 9 (select |#length| 5))) (not (= 30 (select |#length| 7))) (not (= 31 (select |#length| 2))) (not (= (select |#valid| 12) 1)) (not (= 2 (select |#length| 1))) (not (= 9 (select |#length| 14))) (not (= |old(~waterLevel~0)| 1)) (not (= 1 ~systemActive~0)) (not (= (select |#length| 15) 25)) (not (= (select |#valid| 6) 1)) (not (= (select |#valid| 3) 1)) (not (= ~head~0.offset 0)) (not (= (select |#valid| 11) 1)) (not (= (select |#length| 9) 21)) (not (= 30 (select |#length| 10))) (not (= (select |#valid| 15) 1)) (not (= (select |#length| 6) 21)) (not (= 1 (select |#valid| 5))) (not (= (select |#length| 8) 9)) (not (= (select |#length| 3) 12)) (not (= (select |#valid| 0) 0)) .cse2 (not (= (select .cse5 1) 0)) (not (= (select |#valid| 1) 1)) (and (= |timeShift_isHighWaterSensorDry_#res#1| 1) .cse6 (= |timeShift_isHighWaterLevel_#res#1| 0)) (not (= (select |#valid| 8) 1)) (not (= 30 (select |#length| 13))) (not (= (select |#valid| 4) 1)) (not (= (select |#valid| 7) 1)) (not (= (select |#valid| 10) 1)) (not (= (select |#valid| 14) 1)) (not (= (select |#valid| 13) 1)) (< |#StackHeapBarrier| 1) (not (= 30 (select |#length| 4))) (not (= (select |#valid| 2) 1)) (not (= (select |#valid| 9) 1)) (not (= ~head~0.base 0)) (not (= ~cleanupTimeShifts~0 4)))) (or .cse7 .cse0 .cse3 .cse4) (or .cse7 .cse1 (<= 2 |old(~waterLevel~0)|) .cse3)))) [2023-11-19 04:13:55,979 INFO L895 garLoopResultBuilder]: At program point L329(line 329) the Hoare annotation is: (let ((.cse6 (= ~methaneLevelCritical~0 0)) (.cse47 (select |#memory_int| 1))) (let ((.cse0 (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0))) (.cse7 (= |timeShift_processEnvironment_~tmp~2#1| 0)) (.cse1 (<= 3 |old(~waterLevel~0)|)) (.cse8 (< 0 |timeShift_processEnvironment_~tmp~2#1|)) (.cse5 (not (= |old(~waterLevel~0)| 2))) (.cse4 (= |old(~pumpRunning~0)| 0)) (.cse3 (= 0 ~systemActive~0)) (.cse9 (not (= (select |#length| 12) 25))) (.cse10 (not (= (select .cse47 0) 48))) (.cse11 (not (= 9 (select |#length| 11)))) (.cse13 (not (= 9 (select |#length| 5)))) (.cse14 (not (= 30 (select |#length| 7)))) (.cse15 (not (= 31 (select |#length| 2)))) (.cse16 (not (= (select |#valid| 12) 1))) (.cse17 (not (= 2 (select |#length| 1)))) (.cse18 (not (= 9 (select |#length| 14)))) (.cse12 (not (= 1 ~systemActive~0))) (.cse19 (not (= (select |#length| 15) 25))) (.cse20 (not (= (select |#valid| 6) 1))) (.cse21 (not (= (select |#valid| 3) 1))) (.cse22 (not (= ~head~0.offset 0))) (.cse23 (not (= (select |#valid| 11) 1))) (.cse24 (not (= (select |#length| 9) 21))) (.cse25 (not (= 30 (select |#length| 10)))) (.cse26 (not (= (select |#valid| 15) 1))) (.cse27 (not (= (select |#length| 6) 21))) (.cse28 (not (= 1 (select |#valid| 5)))) (.cse29 (not (= (select |#length| 8) 9))) (.cse30 (not (= (select |#length| 3) 12))) (.cse31 (not (= (select |#valid| 0) 0))) (.cse2 (not .cse6)) (.cse32 (not (= (select .cse47 1) 0))) (.cse33 (not (= (select |#valid| 1) 1))) (.cse34 (not (= (select |#valid| 8) 1))) (.cse35 (not (= 30 (select |#length| 13)))) (.cse36 (not (= (select |#valid| 4) 1))) (.cse37 (not (= (select |#valid| 7) 1))) (.cse38 (not (= (select |#valid| 10) 1))) (.cse39 (not (= (select |#valid| 14) 1))) (.cse40 (not (= (select |#valid| 13) 1))) (.cse41 (< |#StackHeapBarrier| 1)) (.cse42 (not (= 30 (select |#length| 4)))) (.cse43 (not (= (select |#valid| 2) 1))) (.cse44 (not (= (select |#valid| 9) 1))) (.cse45 (not (= ~head~0.base 0))) (.cse46 (not (= ~cleanupTimeShifts~0 4)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse4 .cse2 .cse3) (or .cse4 .cse5 .cse3) (or .cse6 .cse7 .cse1 .cse3 .cse8) (or .cse0 .cse6 .cse1 .cse3) (or .cse7 .cse1 .cse2 .cse3 .cse8) (or .cse9 .cse10 .cse11 (forall ((|v_ULTIMATE.start_test_~tmp___1~0#1_BEFORE_CALL_1| Int) (|v_ULTIMATE.start_test_~tmp___2~0#1_BEFORE_CALL_1| Int)) (or (< (+ 2147483648 |v_ULTIMATE.start_test_~tmp___2~0#1_BEFORE_CALL_1|) 0) (and (or .cse12 (< 2147483647 |v_ULTIMATE.start_test_~tmp___1~0#1_BEFORE_CALL_1|) (< (+ |v_ULTIMATE.start_test_~tmp___1~0#1_BEFORE_CALL_1| 2147483648) 0)) (or (= |v_ULTIMATE.start_test_~tmp___2~0#1_BEFORE_CALL_1| 0) .cse12)) (< 2147483647 |v_ULTIMATE.start_test_~tmp___2~0#1_BEFORE_CALL_1|))) .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 .cse24 .cse25 .cse26 .cse27 .cse28 .cse29 .cse30 .cse31 .cse2 .cse32 .cse33 .cse34 .cse35 .cse36 .cse37 .cse38 (and (= |timeShift_isHighWaterLevel_#res#1| 1) (= |timeShift_isHighWaterSensorDry_#res#1| 0)) .cse5 .cse39 .cse40 .cse41 .cse42 .cse43 .cse44 .cse45 .cse46) (or (= |timeShift_processEnvironment_~tmp~2#1| 1) .cse5 .cse3) (or .cse6 .cse4 (<= 2 |old(~waterLevel~0)|) .cse3) (or .cse9 .cse10 .cse11 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 (not (= |old(~waterLevel~0)| 1)) .cse12 .cse19 .cse20 .cse21 .cse22 .cse23 .cse24 .cse25 .cse26 .cse27 .cse28 .cse29 .cse30 .cse31 .cse2 .cse32 .cse33 .cse34 .cse35 .cse36 .cse37 .cse38 .cse39 .cse40 .cse41 .cse42 .cse43 .cse44 .cse45 .cse46)))) [2023-11-19 04:13:55,979 INFO L899 garLoopResultBuilder]: For program point L329-1(line 329) no Hoare annotation was computed. [2023-11-19 04:13:55,980 INFO L899 garLoopResultBuilder]: For program point L932(lines 932 938) no Hoare annotation was computed. [2023-11-19 04:13:55,980 INFO L899 garLoopResultBuilder]: For program point L928(lines 928 941) no Hoare annotation was computed. [2023-11-19 04:13:55,980 INFO L899 garLoopResultBuilder]: For program point L928-1(lines 913 945) no Hoare annotation was computed. [2023-11-19 04:13:55,980 INFO L895 garLoopResultBuilder]: At program point L284(line 284) the Hoare annotation is: (let ((.cse0 (and (not (= ~pumpRunning~0 0)) (or (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) (<= 1 |old(~waterLevel~0)|)) (and (<= |old(~waterLevel~0)| 0) (= |old(~waterLevel~0)| ~waterLevel~0))))) (.cse1 (not (= |old(~waterLevel~0)| 2))) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2) (or (= ~methaneLevelCritical~0 0) (<= 3 |old(~waterLevel~0)|) .cse2) (or (<= 2 |old(~waterLevel~0)|) .cse0 .cse2) (or .cse3 .cse1 .cse2) (or .cse3 (not (= |old(~waterLevel~0)| 1)) .cse2))) [2023-11-19 04:13:55,980 INFO L899 garLoopResultBuilder]: For program point L284-1(lines 265 289) no Hoare annotation was computed. [2023-11-19 04:13:55,981 INFO L899 garLoopResultBuilder]: For program point L507(line 507) no Hoare annotation was computed. [2023-11-19 04:13:55,982 INFO L895 garLoopResultBuilder]: At program point L920(line 920) the Hoare annotation is: (let ((.cse12 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse8 (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) (<= 1 |old(~waterLevel~0)|))) (.cse10 (and (<= |old(~waterLevel~0)| 0) .cse12)) (.cse52 (= ~pumpRunning~0 0))) (let ((.cse6 (not .cse52)) (.cse54 (<= ~waterLevel~0 1)) (.cse7 (or .cse8 .cse10)) (.cse4 (= 0 ~systemActive~0)) (.cse5 (= ~methaneLevelCritical~0 0)) (.cse0 (= |old(~pumpRunning~0)| 0)) (.cse55 (select |#memory_int| 1))) (let ((.cse2 (<= 2 |old(~waterLevel~0)|)) (.cse9 (not (= |old(~waterLevel~0)| 2))) (.cse14 (not (= (select |#length| 12) 25))) (.cse15 (not (= (select .cse55 0) 48))) (.cse16 (not (= 9 (select |#length| 11)))) (.cse18 (not (= 9 (select |#length| 5)))) (.cse19 (not (= 30 (select |#length| 7)))) (.cse20 (not (= 31 (select |#length| 2)))) (.cse21 (not (= (select |#valid| 12) 1))) (.cse22 (not (= 2 (select |#length| 1)))) (.cse23 (not (= 9 (select |#length| 14)))) (.cse17 (not (= 1 ~systemActive~0))) (.cse24 (not (= (select |#length| 15) 25))) (.cse25 (not (= (select |#valid| 6) 1))) (.cse26 (not (= (select |#valid| 3) 1))) (.cse27 (not (= ~head~0.offset 0))) (.cse28 (not (= (select |#valid| 11) 1))) (.cse29 (not (= (select |#length| 9) 21))) (.cse30 (not (= 30 (select |#length| 10)))) (.cse31 (not (= (select |#valid| 15) 1))) (.cse32 (not (= (select |#length| 6) 21))) (.cse33 (not (= 1 (select |#valid| 5)))) (.cse34 (not (= (select |#length| 8) 9))) (.cse35 (not (= (select |#length| 3) 12))) (.cse36 (not (= (select |#valid| 0) 0))) (.cse37 (not (= (select .cse55 1) 0))) (.cse38 (not (= (select |#valid| 1) 1))) (.cse39 (not (= (select |#valid| 8) 1))) (.cse40 (not (= 30 (select |#length| 13)))) (.cse41 (not (= (select |#valid| 4) 1))) (.cse42 (not (= (select |#valid| 7) 1))) (.cse43 (not (= (select |#valid| 10) 1))) (.cse44 (not (= (select |#valid| 14) 1))) (.cse45 (not (= (select |#valid| 13) 1))) (.cse46 (< |#StackHeapBarrier| 1)) (.cse47 (not (= 30 (select |#length| 4)))) (.cse48 (not (= (select |#valid| 2) 1))) (.cse49 (not (= (select |#valid| 9) 1))) (.cse50 (not (= ~head~0.base 0))) (.cse51 (not (= ~cleanupTimeShifts~0 4))) (.cse13 (not .cse0)) (.cse53 (not (= |old(~waterLevel~0)| 1))) (.cse11 (<= 3 |old(~waterLevel~0)|)) (.cse1 (not .cse5)) (.cse3 (and .cse6 .cse5 .cse54 .cse7 (not .cse4)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse0 .cse2 (and .cse6 .cse7) .cse4) (or .cse8 .cse0 .cse9 .cse10 .cse4) (or .cse5 .cse11 .cse12 .cse4) (or .cse13 .cse9 .cse12 .cse4) (or .cse14 .cse13 .cse15 .cse16 (forall ((|v_ULTIMATE.start_test_~tmp___1~0#1_BEFORE_CALL_1| Int) (|v_ULTIMATE.start_test_~tmp___2~0#1_BEFORE_CALL_1| Int)) (or (< (+ 2147483648 |v_ULTIMATE.start_test_~tmp___2~0#1_BEFORE_CALL_1|) 0) (and (or .cse17 (< 2147483647 |v_ULTIMATE.start_test_~tmp___1~0#1_BEFORE_CALL_1|) (< (+ |v_ULTIMATE.start_test_~tmp___1~0#1_BEFORE_CALL_1| 2147483648) 0)) (or (= |v_ULTIMATE.start_test_~tmp___2~0#1_BEFORE_CALL_1| 0) .cse17)) (< 2147483647 |v_ULTIMATE.start_test_~tmp___2~0#1_BEFORE_CALL_1|))) .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 .cse24 .cse25 .cse26 .cse27 .cse28 .cse29 .cse30 .cse31 .cse32 .cse33 .cse34 .cse35 .cse36 .cse1 .cse37 .cse38 .cse39 .cse40 .cse41 .cse42 .cse43 .cse9 .cse44 .cse45 .cse46 .cse47 .cse48 (and (= |timeShift_isHighWaterLevel_#res#1| 1) (= |timeShift_isMethaneAlarm_#res#1| 0) (= |timeShift_isHighWaterSensorDry_#res#1| 0)) .cse49 .cse50 .cse51) (or .cse5 .cse11 (not (= |old(~pumpRunning~0)| 1)) .cse4) (or .cse14 .cse13 .cse15 .cse52 .cse16 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 .cse53 .cse17 .cse24 .cse25 .cse26 .cse27 .cse28 .cse29 .cse30 .cse31 .cse32 .cse33 .cse34 .cse35 .cse36 .cse1 .cse37 .cse38 .cse39 .cse40 .cse41 .cse42 .cse43 .cse44 .cse45 .cse46 .cse47 .cse48 .cse49 .cse50 .cse51) (or .cse13 .cse53 .cse4 (= ~waterLevel~0 1)) (or (and .cse52 .cse54 .cse12) .cse11 .cse1 .cse3 .cse4 (and .cse12 (= ~pumpRunning~0 1)))))))) [2023-11-19 04:13:55,982 INFO L899 garLoopResultBuilder]: For program point L920-1(line 920) no Hoare annotation was computed. [2023-11-19 04:13:55,982 INFO L899 garLoopResultBuilder]: For program point L244-1(lines 244 250) no Hoare annotation was computed. [2023-11-19 04:13:55,982 INFO L899 garLoopResultBuilder]: For program point L273(lines 273 281) no Hoare annotation was computed. [2023-11-19 04:13:55,982 INFO L899 garLoopResultBuilder]: For program point L269(lines 269 286) no Hoare annotation was computed. [2023-11-19 04:13:55,983 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 233 256) the Hoare annotation is: (let ((.cse7 (= ~methaneLevelCritical~0 0)) (.cse5 (= |old(~pumpRunning~0)| 0)) (.cse1 (= ~pumpRunning~0 0))) (let ((.cse8 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse3 (not .cse1)) (.cse0 (not .cse5)) (.cse6 (not .cse7)) (.cse4 (<= 3 |old(~waterLevel~0)|)) (.cse9 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (= 0 ~systemActive~0)) (.cse10 (= ~pumpRunning~0 1))) (and (or .cse0 .cse1 (not (= |old(~waterLevel~0)| 2)) .cse2) (or .cse3 .cse4 .cse5 .cse6 .cse2) (or .cse7 .cse4 .cse8 .cse2) (or .cse4 .cse6 .cse8 .cse2) (or .cse3 .cse7 .cse4 .cse5 .cse2) (or .cse0 .cse1 (not (= |old(~waterLevel~0)| 1)) .cse2) (or .cse4 .cse6 .cse9 .cse2 .cse10) (or .cse7 .cse4 .cse9 .cse2 .cse10)))) [2023-11-19 04:13:55,983 INFO L899 garLoopResultBuilder]: For program point L922(lines 922 942) no Hoare annotation was computed. [2023-11-19 04:13:55,983 INFO L899 garLoopResultBuilder]: For program point L237-1(lines 236 255) no Hoare annotation was computed. [2023-11-19 04:13:55,983 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 233 256) no Hoare annotation was computed. [2023-11-19 04:13:55,984 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 507) no Hoare annotation was computed. [2023-11-19 04:13:55,984 INFO L902 garLoopResultBuilder]: At program point L66-1(lines 66 70) the Hoare annotation is: true [2023-11-19 04:13:55,984 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 52 81) no Hoare annotation was computed. [2023-11-19 04:13:55,984 INFO L902 garLoopResultBuilder]: At program point L62-2(lines 62 76) the Hoare annotation is: true [2023-11-19 04:13:55,984 INFO L902 garLoopResultBuilder]: At program point L58(line 58) the Hoare annotation is: true [2023-11-19 04:13:55,984 INFO L899 garLoopResultBuilder]: For program point L58-1(line 58) no Hoare annotation was computed. [2023-11-19 04:13:55,985 INFO L899 garLoopResultBuilder]: For program point L77(lines 52 81) no Hoare annotation was computed. [2023-11-19 04:13:55,985 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 52 81) the Hoare annotation is: true [2023-11-19 04:13:55,985 INFO L899 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2023-11-19 04:13:55,985 INFO L899 garLoopResultBuilder]: For program point L66(lines 66 70) no Hoare annotation was computed. [2023-11-19 04:13:55,985 INFO L895 garLoopResultBuilder]: At program point L213(lines 164 214) the Hoare annotation is: false [2023-11-19 04:13:55,985 INFO L899 garLoopResultBuilder]: For program point L185(lines 185 191) no Hoare annotation was computed. [2023-11-19 04:13:55,986 INFO L899 garLoopResultBuilder]: For program point L185-1(lines 185 191) no Hoare annotation was computed. [2023-11-19 04:13:55,986 INFO L895 garLoopResultBuilder]: At program point L210(lines 165 212) the Hoare annotation is: (let ((.cse3 (<= ~waterLevel~0 1)) (.cse0 (not (= ~pumpRunning~0 0))) (.cse8 (= 2 ~waterLevel~0)) (.cse1 (= ~methaneLevelCritical~0 0)) (.cse7 (or (not (= |old(~methaneLevelCritical~0)| 0)) (= ~methaneLevelCritical~0 1))) (.cse2 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse4 (= 1 ~systemActive~0)) (.cse5 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse6 (= ~waterLevel~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse1 .cse2 .cse4 .cse5 .cse6) (and .cse0 .cse7 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse8 .cse1 .cse2 .cse4 .cse5) (and .cse8 .cse7 .cse2 .cse4 (not .cse1) .cse5) (and .cse7 .cse2 .cse4 .cse5 .cse6))) [2023-11-19 04:13:55,986 INFO L895 garLoopResultBuilder]: At program point L177(line 177) the Hoare annotation is: (let ((.cse6 (= ~waterLevel~0 1)) (.cse0 (not (= ~pumpRunning~0 0))) (.cse7 (or (not (= |old(~methaneLevelCritical~0)| 0)) (= ~methaneLevelCritical~0 1))) (.cse5 (<= ~waterLevel~0 2)) (.cse8 (= 2 ~waterLevel~0)) (.cse1 (= ~methaneLevelCritical~0 0)) (.cse2 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse3 (= 1 ~systemActive~0)) (.cse4 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse1 .cse2 .cse3 .cse4 .cse6) (and .cse7 .cse2 .cse3 .cse4 .cse6) (and .cse8 .cse7 .cse2 .cse3 .cse4) (and .cse0 .cse7 .cse2 .cse3 .cse4 .cse5) (and .cse8 .cse1 .cse2 .cse3 .cse4))) [2023-11-19 04:13:55,986 INFO L899 garLoopResultBuilder]: For program point L140(lines 140 147) no Hoare annotation was computed. [2023-11-19 04:13:55,987 INFO L899 garLoopResultBuilder]: For program point L140-2(lines 140 147) no Hoare annotation was computed. [2023-11-19 04:13:55,987 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-19 04:13:55,987 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-19 04:13:55,987 INFO L895 garLoopResultBuilder]: At program point L203-2(lines 195 208) the Hoare annotation is: (let ((.cse6 (= ~waterLevel~0 1)) (.cse0 (not (= ~pumpRunning~0 0))) (.cse7 (or (not (= |old(~methaneLevelCritical~0)| 0)) (= ~methaneLevelCritical~0 1))) (.cse5 (<= ~waterLevel~0 2)) (.cse8 (= 2 ~waterLevel~0)) (.cse1 (= ~methaneLevelCritical~0 0)) (.cse2 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse3 (= 1 ~systemActive~0)) (.cse4 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse1 .cse2 .cse3 .cse4 .cse6) (and .cse7 .cse2 .cse3 .cse4 .cse6) (and .cse8 .cse7 .cse2 .cse3 .cse4) (and .cse0 .cse7 .cse2 .cse3 .cse4 .cse5) (and .cse8 .cse1 .cse2 .cse3 .cse4))) [2023-11-19 04:13:55,987 INFO L899 garLoopResultBuilder]: For program point L166(lines 165 212) no Hoare annotation was computed. [2023-11-19 04:13:55,988 INFO L895 garLoopResultBuilder]: At program point L187(line 187) the Hoare annotation is: (let ((.cse6 (= ~waterLevel~0 1)) (.cse0 (not (= ~pumpRunning~0 0))) (.cse7 (or (not (= |old(~methaneLevelCritical~0)| 0)) (= ~methaneLevelCritical~0 1))) (.cse5 (<= ~waterLevel~0 2)) (.cse8 (= 2 ~waterLevel~0)) (.cse1 (= ~methaneLevelCritical~0 0)) (.cse2 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse3 (= 1 ~systemActive~0)) (.cse4 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse1 .cse2 .cse3 .cse4 .cse6) (and .cse7 .cse2 .cse3 .cse4 .cse6) (and .cse8 .cse7 .cse2 .cse3 .cse4) (and .cse0 .cse7 .cse2 .cse3 .cse4 .cse5) (and .cse8 .cse1 .cse2 .cse3 .cse4))) [2023-11-19 04:13:55,988 INFO L899 garLoopResultBuilder]: For program point L216(lines 155 220) no Hoare annotation was computed. [2023-11-19 04:13:55,988 INFO L899 garLoopResultBuilder]: For program point L175(lines 175 181) no Hoare annotation was computed. [2023-11-19 04:13:55,988 INFO L899 garLoopResultBuilder]: For program point L175-1(lines 175 181) no Hoare annotation was computed. [2023-11-19 04:13:55,988 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 423 434) no Hoare annotation was computed. [2023-11-19 04:13:55,989 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 423 434) the Hoare annotation is: (let ((.cse1 (= 0 ~systemActive~0))) (and (let ((.cse0 (= |old(~waterLevel~0)| 1)) (.cse2 (= |old(~waterLevel~0)| 2))) (or (and .cse0 (= ~waterLevel~0 1)) (and (or (not .cse0) .cse1) (or (not .cse2) .cse1)) (and (= 2 ~waterLevel~0) .cse2))) (or (= ~pumpRunning~0 0) (<= 3 |old(~waterLevel~0)|) (= |old(~waterLevel~0)| ~waterLevel~0) .cse1))) [2023-11-19 04:13:55,990 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:13:55,993 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 04:13:56,009 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:13:56 BoogieIcfgContainer [2023-11-19 04:13:56,009 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 04:13:56,010 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:13:56,010 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:13:56,010 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:13:56,011 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:13:11" (3/4) ... [2023-11-19 04:13:56,013 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 04:13:56,016 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2023-11-19 04:13:56,016 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2023-11-19 04:13:56,016 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2023-11-19 04:13:56,016 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2023-11-19 04:13:56,017 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2023-11-19 04:13:56,017 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2023-11-19 04:13:56,026 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 43 nodes and edges [2023-11-19 04:13:56,027 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-11-19 04:13:56,028 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-19 04:13:56,028 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 04:13:56,029 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 04:13:56,058 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((!((pumpRunning == 0)) && (methaneLevelCritical == 0)) && (tmp == 1)) && (waterLevel <= 1)) && (1 == systemActive)) && (splverifierCounter == 0)) || (((((methaneLevelCritical == 0) && (tmp == 1)) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel == 1))) || (((((!((pumpRunning == 0)) && (!((\old(methaneLevelCritical) == 0)) || (methaneLevelCritical == 1))) && (tmp == 1)) && (waterLevel <= 1)) && (1 == systemActive)) && (splverifierCounter == 0))) || (((((!((pumpRunning == 0)) && (2 == waterLevel)) && (methaneLevelCritical == 0)) && (tmp == 1)) && (1 == systemActive)) && (splverifierCounter == 0))) || ((((((2 == waterLevel) && (!((\old(methaneLevelCritical) == 0)) || (methaneLevelCritical == 1))) && (tmp == 1)) && (1 == systemActive)) && !((methaneLevelCritical == 0))) && (splverifierCounter == 0))) || (((((!((\old(methaneLevelCritical) == 0)) || (methaneLevelCritical == 1)) && (tmp == 1)) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel == 1))) [2023-11-19 04:13:56,058 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((!((\old(pumpRunning) == 0)) || (pumpRunning == 0)) || !((\old(waterLevel) == 2))) || (0 == systemActive)) && ((((!((pumpRunning == 0)) || (3 <= \old(waterLevel))) || (\old(pumpRunning) == 0)) || !((methaneLevelCritical == 0))) || (0 == systemActive))) && ((((methaneLevelCritical == 0) || (3 <= \old(waterLevel))) || (\old(waterLevel) == waterLevel)) || (0 == systemActive))) && ((((3 <= \old(waterLevel)) || !((methaneLevelCritical == 0))) || (\old(waterLevel) == waterLevel)) || (0 == systemActive))) && ((((!((pumpRunning == 0)) || (methaneLevelCritical == 0)) || (3 <= \old(waterLevel))) || (\old(pumpRunning) == 0)) || (0 == systemActive))) && (((!((\old(pumpRunning) == 0)) || (pumpRunning == 0)) || !((\old(waterLevel) == 1))) || (0 == systemActive))) && (((((3 <= \old(waterLevel)) || !((methaneLevelCritical == 0))) || !((\old(pumpRunning) == 1))) || (0 == systemActive)) || (pumpRunning == 1))) && (((((methaneLevelCritical == 0) || (3 <= \old(waterLevel))) || !((\old(pumpRunning) == 1))) || (0 == systemActive)) || (pumpRunning == 1))) [2023-11-19 04:13:56,089 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((!((pumpRunning == 0)) && (methaneLevelCritical == 0)) && (tmp == 1)) && (waterLevel <= 1)) && (1 == systemActive)) && (splverifierCounter == 0)) || (((((methaneLevelCritical == 0) && (tmp == 1)) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel == 1))) || (((((!((pumpRunning == 0)) && (!((\old(methaneLevelCritical) == 0)) || (methaneLevelCritical == 1))) && (tmp == 1)) && (waterLevel <= 1)) && (1 == systemActive)) && (splverifierCounter == 0))) || (((((!((pumpRunning == 0)) && (2 == waterLevel)) && (methaneLevelCritical == 0)) && (tmp == 1)) && (1 == systemActive)) && (splverifierCounter == 0))) || ((((((2 == waterLevel) && (!((\old(methaneLevelCritical) == 0)) || (methaneLevelCritical == 1))) && (tmp == 1)) && (1 == systemActive)) && !((methaneLevelCritical == 0))) && (splverifierCounter == 0))) || (((((!((\old(methaneLevelCritical) == 0)) || (methaneLevelCritical == 1)) && (tmp == 1)) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel == 1))) [2023-11-19 04:13:56,091 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((!((\old(pumpRunning) == 0)) || (pumpRunning == 0)) || !((\old(waterLevel) == 2))) || (0 == systemActive)) && ((((!((pumpRunning == 0)) || (3 <= \old(waterLevel))) || (\old(pumpRunning) == 0)) || !((methaneLevelCritical == 0))) || (0 == systemActive))) && ((((methaneLevelCritical == 0) || (3 <= \old(waterLevel))) || (\old(waterLevel) == waterLevel)) || (0 == systemActive))) && ((((3 <= \old(waterLevel)) || !((methaneLevelCritical == 0))) || (\old(waterLevel) == waterLevel)) || (0 == systemActive))) && ((((!((pumpRunning == 0)) || (methaneLevelCritical == 0)) || (3 <= \old(waterLevel))) || (\old(pumpRunning) == 0)) || (0 == systemActive))) && (((!((\old(pumpRunning) == 0)) || (pumpRunning == 0)) || !((\old(waterLevel) == 1))) || (0 == systemActive))) && (((((3 <= \old(waterLevel)) || !((methaneLevelCritical == 0))) || !((\old(pumpRunning) == 1))) || (0 == systemActive)) || (pumpRunning == 1))) && (((((methaneLevelCritical == 0) || (3 <= \old(waterLevel))) || !((\old(pumpRunning) == 1))) || (0 == systemActive)) || (pumpRunning == 1))) [2023-11-19 04:13:56,138 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162c26bc-06b3-48ea-a24f-c274c9c7c6e0/bin/utaipan-verify-t7M7D8N6sZ/witness.graphml [2023-11-19 04:13:56,139 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162c26bc-06b3-48ea-a24f-c274c9c7c6e0/bin/utaipan-verify-t7M7D8N6sZ/witness.yml [2023-11-19 04:13:56,139 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:13:56,140 INFO L158 Benchmark]: Toolchain (without parser) took 46116.91ms. Allocated memory was 190.8MB in the beginning and 494.9MB in the end (delta: 304.1MB). Free memory was 146.9MB in the beginning and 310.8MB in the end (delta: -163.9MB). Peak memory consumption was 142.2MB. Max. memory is 16.1GB. [2023-11-19 04:13:56,140 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 111.1MB. Free memory is still 58.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:13:56,140 INFO L158 Benchmark]: CACSL2BoogieTranslator took 557.99ms. Allocated memory is still 190.8MB. Free memory was 146.4MB in the beginning and 127.5MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 04:13:56,141 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.81ms. Allocated memory is still 190.8MB. Free memory was 127.5MB in the beginning and 125.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:13:56,141 INFO L158 Benchmark]: Boogie Preprocessor took 37.29ms. Allocated memory is still 190.8MB. Free memory was 125.4MB in the beginning and 123.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:13:56,141 INFO L158 Benchmark]: RCFGBuilder took 740.42ms. Allocated memory is still 190.8MB. Free memory was 123.8MB in the beginning and 150.6MB in the end (delta: -26.8MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. [2023-11-19 04:13:56,142 INFO L158 Benchmark]: TraceAbstraction took 44560.91ms. Allocated memory was 190.8MB in the beginning and 494.9MB in the end (delta: 304.1MB). Free memory was 149.5MB in the beginning and 318.1MB in the end (delta: -168.6MB). Peak memory consumption was 287.6MB. Max. memory is 16.1GB. [2023-11-19 04:13:56,142 INFO L158 Benchmark]: Witness Printer took 128.91ms. Allocated memory is still 494.9MB. Free memory was 318.1MB in the beginning and 310.8MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 04:13:56,144 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 111.1MB. Free memory is still 58.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 557.99ms. Allocated memory is still 190.8MB. Free memory was 146.4MB in the beginning and 127.5MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.81ms. Allocated memory is still 190.8MB. Free memory was 127.5MB in the beginning and 125.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.29ms. Allocated memory is still 190.8MB. Free memory was 125.4MB in the beginning and 123.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 740.42ms. Allocated memory is still 190.8MB. Free memory was 123.8MB in the beginning and 150.6MB in the end (delta: -26.8MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. * TraceAbstraction took 44560.91ms. Allocated memory was 190.8MB in the beginning and 494.9MB in the end (delta: 304.1MB). Free memory was 149.5MB in the beginning and 318.1MB in the end (delta: -168.6MB). Peak memory consumption was 287.6MB. Max. memory is 16.1GB. * Witness Printer took 128.91ms. Allocated memory is still 494.9MB. Free memory was 318.1MB in the beginning and 310.8MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [49] - GenericResultAtLocation [Line: 153]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [153] - GenericResultAtLocation [Line: 221]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [221] - GenericResultAtLocation [Line: 407]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [407] - GenericResultAtLocation [Line: 502]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [502] - GenericResultAtLocation [Line: 511]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [511] - GenericResultAtLocation [Line: 546]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [546] - GenericResultAtLocation [Line: 912]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [912] * 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: 507]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 51 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 44.5s, OverallIterations: 13, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 8.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 17.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 735 SdHoareTripleChecker+Valid, 3.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 709 mSDsluCounter, 1781 SdHoareTripleChecker+Invalid, 2.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1265 mSDsCounter, 238 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2523 IncrementalHoareTripleChecker+Invalid, 2761 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 238 mSolverCounterUnsat, 516 mSDtfsCounter, 2523 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 507 GetRequests, 353 SyntacticMatches, 3 SemanticMatches, 151 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 650 ImplicationChecksByTransitivity, 12.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=614occurred in iteration=10, InterpolantAutomatonStates: 115, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 13 MinimizatonAttempts, 346 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 18 LocationsWithAnnotation, 741 PreInvPairs, 884 NumberOfFragments, 2472 HoareAnnotationTreeSize, 741 FomulaSimplifications, 52058 FormulaSimplificationTreeSizeReduction, 3.2s HoareSimplificationTime, 18 FomulaSimplificationsInter, 73546 FormulaSimplificationTreeSizeReductionInter, 14.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 733 NumberOfCodeBlocks, 733 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 797 ConstructedInterpolants, 0 QuantifiedInterpolants, 2240 SizeOfPredicates, 28 NumberOfNonLiveVariables, 1195 ConjunctsInSsa, 77 ConjunctsInUnsatCore, 20 InterpolantComputations, 12 PerfectInterpolantSequences, 197/245 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: OVERALL_TIME: 3.4s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 4, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 29, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 23, TOOLS_POST_TIME: 1.5s, TOOLS_POST_CALL_APPLICATIONS: 10, TOOLS_POST_CALL_TIME: 0.9s, TOOLS_POST_RETURN_APPLICATIONS: 6, TOOLS_POST_RETURN_TIME: 0.6s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 39, TOOLS_QUANTIFIERELIM_TIME: 2.9s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.2s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 68, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 7, DOMAIN_JOIN_TIME: 0.3s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 0, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 29, DOMAIN_ISBOTTOM_TIME: 0.1s, LOOP_SUMMARIZER_APPLICATIONS: 0, LOOP_SUMMARIZER_CACHE_MISSES: 0, LOOP_SUMMARIZER_OVERALL_TIME: 0.0s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 0, CALL_SUMMARIZER_APPLICATIONS: 6, CALL_SUMMARIZER_CACHE_MISSES: 2, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 275, DAG_COMPRESSION_RETAINED_NODES: 78, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 164]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 165]: Loop Invariant Derived loop invariant: ((((((((((!((pumpRunning == 0)) && (methaneLevelCritical == 0)) && (tmp == 1)) && (waterLevel <= 1)) && (1 == systemActive)) && (splverifierCounter == 0)) || (((((methaneLevelCritical == 0) && (tmp == 1)) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel == 1))) || (((((!((pumpRunning == 0)) && (!((\old(methaneLevelCritical) == 0)) || (methaneLevelCritical == 1))) && (tmp == 1)) && (waterLevel <= 1)) && (1 == systemActive)) && (splverifierCounter == 0))) || (((((!((pumpRunning == 0)) && (2 == waterLevel)) && (methaneLevelCritical == 0)) && (tmp == 1)) && (1 == systemActive)) && (splverifierCounter == 0))) || ((((((2 == waterLevel) && (!((\old(methaneLevelCritical) == 0)) || (methaneLevelCritical == 1))) && (tmp == 1)) && (1 == systemActive)) && !((methaneLevelCritical == 0))) && (splverifierCounter == 0))) || (((((!((\old(methaneLevelCritical) == 0)) || (methaneLevelCritical == 1)) && (tmp == 1)) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel == 1))) - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 233]: Loop Invariant Derived loop invariant: ((((((((((!((\old(pumpRunning) == 0)) || (pumpRunning == 0)) || !((\old(waterLevel) == 2))) || (0 == systemActive)) && ((((!((pumpRunning == 0)) || (3 <= \old(waterLevel))) || (\old(pumpRunning) == 0)) || !((methaneLevelCritical == 0))) || (0 == systemActive))) && ((((methaneLevelCritical == 0) || (3 <= \old(waterLevel))) || (\old(waterLevel) == waterLevel)) || (0 == systemActive))) && ((((3 <= \old(waterLevel)) || !((methaneLevelCritical == 0))) || (\old(waterLevel) == waterLevel)) || (0 == systemActive))) && ((((!((pumpRunning == 0)) || (methaneLevelCritical == 0)) || (3 <= \old(waterLevel))) || (\old(pumpRunning) == 0)) || (0 == systemActive))) && (((!((\old(pumpRunning) == 0)) || (pumpRunning == 0)) || !((\old(waterLevel) == 1))) || (0 == systemActive))) && (((((3 <= \old(waterLevel)) || !((methaneLevelCritical == 0))) || !((\old(pumpRunning) == 1))) || (0 == systemActive)) || (pumpRunning == 1))) && (((((methaneLevelCritical == 0) || (3 <= \old(waterLevel))) || !((\old(pumpRunning) == 1))) || (0 == systemActive)) || (pumpRunning == 1))) RESULT: Ultimate proved your program to be correct! [2023-11-19 04:13:56,184 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162c26bc-06b3-48ea-a24f-c274c9c7c6e0/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0