./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product34.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa287f94-5f9f-4e61-bc18-623c860c5eb0/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa287f94-5f9f-4e61-bc18-623c860c5eb0/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_aa287f94-5f9f-4e61-bc18-623c860c5eb0/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa287f94-5f9f-4e61-bc18-623c860c5eb0/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product34.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa287f94-5f9f-4e61-bc18-623c860c5eb0/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_aa287f94-5f9f-4e61-bc18-623c860c5eb0/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 86e7038cbd7079ed991c0d8924416f9d170b15a53536a052f3097e1f394171ef --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:13:13,319 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:13:13,433 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa287f94-5f9f-4e61-bc18-623c860c5eb0/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 05:13:13,442 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:13:13,443 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:13:13,480 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:13:13,481 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:13:13,482 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:13:13,482 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:13:13,483 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:13:13,484 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:13:13,484 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:13:13,485 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:13:13,485 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:13:13,486 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:13:13,487 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:13:13,487 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:13:13,488 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:13:13,488 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:13:13,489 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:13:13,490 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:13:13,490 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:13:13,491 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:13:13,491 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:13:13,492 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:13:13,493 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:13:13,493 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:13:13,494 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:13:13,494 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:13:13,495 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:13:13,495 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:13:13,496 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:13:13,496 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:13:13,496 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:13:13,497 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:13:13,497 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:13:13,498 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:13:13,498 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:13:13,499 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:13:13,499 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:13:13,500 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:13:13,500 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:13:13,501 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:13:13,501 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:13:13,501 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:13:13,502 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_aa287f94-5f9f-4e61-bc18-623c860c5eb0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa287f94-5f9f-4e61-bc18-623c860c5eb0/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 86e7038cbd7079ed991c0d8924416f9d170b15a53536a052f3097e1f394171ef [2023-11-19 05:13:13,803 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:13:13,830 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:13:13,833 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:13:13,836 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:13:13,836 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:13:13,839 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa287f94-5f9f-4e61-bc18-623c860c5eb0/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/product-lines/minepump_spec5_product34.cil.c [2023-11-19 05:13:17,068 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:13:17,482 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:13:17,483 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa287f94-5f9f-4e61-bc18-623c860c5eb0/sv-benchmarks/c/product-lines/minepump_spec5_product34.cil.c [2023-11-19 05:13:17,510 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa287f94-5f9f-4e61-bc18-623c860c5eb0/bin/utaipan-verify-t7M7D8N6sZ/data/d3df121e8/5f2926d735f6486d9c027b95ab4f3717/FLAGbdf6cdffe [2023-11-19 05:13:17,532 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa287f94-5f9f-4e61-bc18-623c860c5eb0/bin/utaipan-verify-t7M7D8N6sZ/data/d3df121e8/5f2926d735f6486d9c027b95ab4f3717 [2023-11-19 05:13:17,540 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:13:17,542 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:13:17,543 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:13:17,544 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:13:17,552 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:13:17,555 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:13:17" (1/1) ... [2023-11-19 05:13:17,557 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42f09349 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:17, skipping insertion in model container [2023-11-19 05:13:17,557 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:13:17" (1/1) ... [2023-11-19 05:13:17,624 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:13:17,785 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_aa287f94-5f9f-4e61-bc18-623c860c5eb0/sv-benchmarks/c/product-lines/minepump_spec5_product34.cil.c[2141,2154] [2023-11-19 05:13:17,888 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:13:17,899 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:13:17,910 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] [2023-11-19 05:13:17,912 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [87] [2023-11-19 05:13:17,912 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [96] [2023-11-19 05:13:17,912 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [462] [2023-11-19 05:13:17,913 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [563] [2023-11-19 05:13:17,913 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [633] [2023-11-19 05:13:17,913 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [802] [2023-11-19 05:13:17,914 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [851] [2023-11-19 05:13:17,920 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_aa287f94-5f9f-4e61-bc18-623c860c5eb0/sv-benchmarks/c/product-lines/minepump_spec5_product34.cil.c[2141,2154] [2023-11-19 05:13:17,977 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:13:18,009 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:13:18,013 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:18 WrapperNode [2023-11-19 05:13:18,013 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:13:18,015 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:13:18,015 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:13:18,015 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:13:18,022 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:18" (1/1) ... [2023-11-19 05:13:18,047 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:18" (1/1) ... [2023-11-19 05:13:18,085 INFO L138 Inliner]: procedures = 55, calls = 97, calls flagged for inlining = 23, calls inlined = 19, statements flattened = 178 [2023-11-19 05:13:18,086 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:13:18,086 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:13:18,086 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:13:18,087 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:13:18,096 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:18" (1/1) ... [2023-11-19 05:13:18,097 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:18" (1/1) ... [2023-11-19 05:13:18,111 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:18" (1/1) ... [2023-11-19 05:13:18,113 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:18" (1/1) ... [2023-11-19 05:13:18,117 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:18" (1/1) ... [2023-11-19 05:13:18,136 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:18" (1/1) ... [2023-11-19 05:13:18,138 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:18" (1/1) ... [2023-11-19 05:13:18,139 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:18" (1/1) ... [2023-11-19 05:13:18,142 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:13:18,143 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:13:18,143 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:13:18,144 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:13:18,144 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:18" (1/1) ... [2023-11-19 05:13:18,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:13:18,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa287f94-5f9f-4e61-bc18-623c860c5eb0/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:13:18,190 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa287f94-5f9f-4e61-bc18-623c860c5eb0/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:13:18,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa287f94-5f9f-4e61-bc18-623c860c5eb0/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:13:18,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:13:18,241 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-11-19 05:13:18,242 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-11-19 05:13:18,242 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-19 05:13:18,242 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-19 05:13:18,242 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-19 05:13:18,242 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-19 05:13:18,243 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-19 05:13:18,243 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-19 05:13:18,243 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-11-19 05:13:18,244 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-11-19 05:13:18,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:13:18,245 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-19 05:13:18,245 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-19 05:13:18,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:13:18,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:13:18,388 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:13:18,402 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:13:18,670 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:13:18,823 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:13:18,824 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 05:13:18,829 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:13:18 BoogieIcfgContainer [2023-11-19 05:13:18,829 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:13:18,833 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:13:18,833 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:13:18,837 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:13:18,837 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:13:17" (1/3) ... [2023-11-19 05:13:18,838 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9a7088a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:13:18, skipping insertion in model container [2023-11-19 05:13:18,838 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:18" (2/3) ... [2023-11-19 05:13:18,838 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9a7088a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:13:18, skipping insertion in model container [2023-11-19 05:13:18,839 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:13:18" (3/3) ... [2023-11-19 05:13:18,840 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product34.cil.c [2023-11-19 05:13:18,861 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:13:18,862 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:13:18,916 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:13:18,924 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;@4bb826f5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:13:18,925 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:13:18,930 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 39 states have internal predecessors, (47), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-19 05:13:18,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-19 05:13:18,941 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:13:18,942 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:13:18,942 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:13:18,948 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:13:18,948 INFO L85 PathProgramCache]: Analyzing trace with hash 824497954, now seen corresponding path program 1 times [2023-11-19 05:13:18,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:13:18,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125051814] [2023-11-19 05:13:18,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:13:18,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:13:19,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:13:19,174 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 05:13:19,174 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:13:19,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125051814] [2023-11-19 05:13:19,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125051814] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:13:19,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:13:19,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:13:19,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142585165] [2023-11-19 05:13:19,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:13:19,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 05:13:19,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:13:19,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 05:13:19,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:13:19,225 INFO L87 Difference]: Start difference. First operand has 51 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 39 states have internal predecessors, (47), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 05:13:19,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:13:19,311 INFO L93 Difference]: Finished difference Result 100 states and 135 transitions. [2023-11-19 05:13:19,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 05:13:19,317 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2023-11-19 05:13:19,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:13:19,328 INFO L225 Difference]: With dead ends: 100 [2023-11-19 05:13:19,328 INFO L226 Difference]: Without dead ends: 46 [2023-11-19 05:13:19,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:13:19,339 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:13:19,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 49 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:13:19,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2023-11-19 05:13:19,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2023-11-19 05:13:19,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 30 states have (on average 1.3) internal successors, (39), 35 states have internal predecessors, (39), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 05:13:19,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 58 transitions. [2023-11-19 05:13:19,407 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 58 transitions. Word has length 21 [2023-11-19 05:13:19,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:13:19,408 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 58 transitions. [2023-11-19 05:13:19,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 05:13:19,409 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 58 transitions. [2023-11-19 05:13:19,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-19 05:13:19,414 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:13:19,414 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:13:19,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 05:13:19,415 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:13:19,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:13:19,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1160926620, now seen corresponding path program 1 times [2023-11-19 05:13:19,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:13:19,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658255215] [2023-11-19 05:13:19,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:13:19,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:13:19,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:13:19,735 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 05:13:19,735 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:13:19,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658255215] [2023-11-19 05:13:19,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658255215] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:13:19,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:13:19,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 05:13:19,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171903765] [2023-11-19 05:13:19,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:13:19,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 05:13:19,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:13:19,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 05:13:19,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 05:13:19,743 INFO L87 Difference]: Start difference. First operand 46 states and 58 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 05:13:19,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:13:19,951 INFO L93 Difference]: Finished difference Result 130 states and 175 transitions. [2023-11-19 05:13:19,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 05:13:19,952 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 24 [2023-11-19 05:13:19,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:13:19,955 INFO L225 Difference]: With dead ends: 130 [2023-11-19 05:13:19,955 INFO L226 Difference]: Without dead ends: 86 [2023-11-19 05:13:19,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-19 05:13:19,959 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 37 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:13:19,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 211 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:13:19,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-11-19 05:13:19,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 84. [2023-11-19 05:13:19,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 55 states have (on average 1.2545454545454546) internal successors, (69), 61 states have internal predecessors, (69), 18 states have call successors, (18), 12 states have call predecessors, (18), 10 states have return successors, (22), 16 states have call predecessors, (22), 16 states have call successors, (22) [2023-11-19 05:13:19,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 109 transitions. [2023-11-19 05:13:19,986 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 109 transitions. Word has length 24 [2023-11-19 05:13:19,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:13:19,987 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 109 transitions. [2023-11-19 05:13:19,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 05:13:19,987 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 109 transitions. [2023-11-19 05:13:19,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-19 05:13:19,989 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:13:19,990 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:13:19,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 05:13:19,990 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:13:19,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:13:19,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1992853804, now seen corresponding path program 1 times [2023-11-19 05:13:19,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:13:19,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616371672] [2023-11-19 05:13:19,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:13:19,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:13:20,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:13:20,071 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 05:13:20,071 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:13:20,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616371672] [2023-11-19 05:13:20,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616371672] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:13:20,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:13:20,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:13:20,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31155188] [2023-11-19 05:13:20,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:13:20,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:13:20,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:13:20,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:13:20,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:13:20,075 INFO L87 Difference]: Start difference. First operand 84 states and 109 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 05:13:20,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:13:20,116 INFO L93 Difference]: Finished difference Result 124 states and 156 transitions. [2023-11-19 05:13:20,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:13:20,117 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 25 [2023-11-19 05:13:20,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:13:20,119 INFO L225 Difference]: With dead ends: 124 [2023-11-19 05:13:20,119 INFO L226 Difference]: Without dead ends: 68 [2023-11-19 05:13:20,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:13:20,122 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 7 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:13:20,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 61 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:13:20,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2023-11-19 05:13:20,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2023-11-19 05:13:20,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 45 states have (on average 1.2666666666666666) internal successors, (57), 51 states have internal predecessors, (57), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (14), 12 states have call predecessors, (14), 12 states have call successors, (14) [2023-11-19 05:13:20,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 83 transitions. [2023-11-19 05:13:20,138 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 83 transitions. Word has length 25 [2023-11-19 05:13:20,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:13:20,139 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 83 transitions. [2023-11-19 05:13:20,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 05:13:20,139 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 83 transitions. [2023-11-19 05:13:20,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-19 05:13:20,141 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:13:20,141 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:13:20,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 05:13:20,141 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:13:20,142 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:13:20,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1579108656, now seen corresponding path program 1 times [2023-11-19 05:13:20,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:13:20,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782177370] [2023-11-19 05:13:20,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:13:20,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:13:20,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:13:20,581 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 05:13:20,581 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:13:20,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782177370] [2023-11-19 05:13:20,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782177370] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:13:20,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:13:20,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 05:13:20,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320688519] [2023-11-19 05:13:20,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:13:20,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 05:13:20,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:13:20,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 05:13:20,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:13:20,585 INFO L87 Difference]: Start difference. First operand 68 states and 83 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 05:13:20,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:13:20,711 INFO L93 Difference]: Finished difference Result 165 states and 203 transitions. [2023-11-19 05:13:20,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 05:13:20,712 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 27 [2023-11-19 05:13:20,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:13:20,714 INFO L225 Difference]: With dead ends: 165 [2023-11-19 05:13:20,714 INFO L226 Difference]: Without dead ends: 99 [2023-11-19 05:13:20,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-19 05:13:20,717 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 25 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:13:20,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 140 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:13:20,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-11-19 05:13:20,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 97. [2023-11-19 05:13:20,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 65 states have (on average 1.2461538461538462) internal successors, (81), 72 states have internal predecessors, (81), 17 states have call successors, (17), 14 states have call predecessors, (17), 14 states have return successors, (19), 17 states have call predecessors, (19), 17 states have call successors, (19) [2023-11-19 05:13:20,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 117 transitions. [2023-11-19 05:13:20,736 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 117 transitions. Word has length 27 [2023-11-19 05:13:20,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:13:20,736 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 117 transitions. [2023-11-19 05:13:20,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 05:13:20,737 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 117 transitions. [2023-11-19 05:13:20,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-19 05:13:20,738 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:13:20,739 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:13:20,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 05:13:20,739 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:13:20,740 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:13:20,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1444887425, now seen corresponding path program 1 times [2023-11-19 05:13:20,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:13:20,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625579737] [2023-11-19 05:13:20,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:13:20,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:13:20,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:13:21,014 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 05:13:21,015 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:13:21,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625579737] [2023-11-19 05:13:21,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625579737] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:13:21,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:13:21,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 05:13:21,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509411349] [2023-11-19 05:13:21,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:13:21,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 05:13:21,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:13:21,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 05:13:21,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-19 05:13:21,021 INFO L87 Difference]: Start difference. First operand 97 states and 117 transitions. Second operand has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 05:13:21,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:13:21,431 INFO L93 Difference]: Finished difference Result 247 states and 302 transitions. [2023-11-19 05:13:21,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 05:13:21,432 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 30 [2023-11-19 05:13:21,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:13:21,439 INFO L225 Difference]: With dead ends: 247 [2023-11-19 05:13:21,439 INFO L226 Difference]: Without dead ends: 181 [2023-11-19 05:13:21,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2023-11-19 05:13:21,445 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 142 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 05:13:21,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 210 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 05:13:21,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2023-11-19 05:13:21,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 171. [2023-11-19 05:13:21,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 115 states have (on average 1.2521739130434784) internal successors, (144), 129 states have internal predecessors, (144), 30 states have call successors, (30), 23 states have call predecessors, (30), 25 states have return successors, (34), 30 states have call predecessors, (34), 30 states have call successors, (34) [2023-11-19 05:13:21,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 208 transitions. [2023-11-19 05:13:21,477 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 208 transitions. Word has length 30 [2023-11-19 05:13:21,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:13:21,478 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 208 transitions. [2023-11-19 05:13:21,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 05:13:21,478 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 208 transitions. [2023-11-19 05:13:21,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-19 05:13:21,481 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:13:21,481 INFO L195 NwaCegarLoop]: trace histogram [3, 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 05:13:21,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 05:13:21,482 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:13:21,482 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:13:21,482 INFO L85 PathProgramCache]: Analyzing trace with hash -716648960, now seen corresponding path program 1 times [2023-11-19 05:13:21,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:13:21,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094113040] [2023-11-19 05:13:21,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:13:21,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:13:21,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:13:21,759 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 05:13:21,759 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:13:21,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094113040] [2023-11-19 05:13:21,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094113040] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:13:21,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1841253077] [2023-11-19 05:13:21,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:13:21,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:13:21,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa287f94-5f9f-4e61-bc18-623c860c5eb0/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:13:21,769 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa287f94-5f9f-4e61-bc18-623c860c5eb0/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:13:21,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa287f94-5f9f-4e61-bc18-623c860c5eb0/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 05:13:21,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:13:21,901 INFO L262 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 05:13:21,910 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:13:22,040 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:13:22,040 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:13:22,207 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 05:13:22,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1841253077] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:13:22,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [306471283] [2023-11-19 05:13:22,231 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2023-11-19 05:13:22,231 INFO L166 IcfgInterpreter]: Building call graph [2023-11-19 05:13:22,237 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-19 05:13:22,243 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-19 05:13:22,243 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-19 05:13:31,876 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 153 for LOIs [2023-11-19 05:13:32,098 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 31 for LOIs [2023-11-19 05:13:32,296 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 38 for LOIs [2023-11-19 05:13:32,306 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-19 05:13:37,925 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2069#(and (= ~waterLevel~0 |timeShift_getWaterLevel_#res#1|) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 0)) (<= 0 (+ 2147483648 |old(~pumpRunning~0)|)) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp~6#1| 2147483647) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~6#1| 2)) (<= |old(~pumpRunning~0)| 2147483647) (<= 0 (+ ~waterLevel~0 2147483648)) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1|) (<= 0 (+ ~pumpRunning~0 2147483648)) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 2147483647) (= ~switchedOnBeforeTS~0 0) (= |timeShift___utac_acc__Specification5_spec__3_~tmp~6#1| |timeShift_getWaterLevel_#res#1|))' at error location [2023-11-19 05:13:37,925 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-19 05:13:37,926 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 05:13:37,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 13 [2023-11-19 05:13:37,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862736359] [2023-11-19 05:13:37,926 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 05:13:37,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-19 05:13:37,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:13:37,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-19 05:13:37,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=1415, Unknown=0, NotChecked=0, Total=1560 [2023-11-19 05:13:37,929 INFO L87 Difference]: Start difference. First operand 171 states and 208 transitions. Second operand has 13 states, 10 states have (on average 5.9) internal successors, (59), 11 states have internal predecessors, (59), 5 states have call successors, (11), 4 states have call predecessors, (11), 7 states have return successors, (10), 7 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-19 05:13:38,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:13:38,327 INFO L93 Difference]: Finished difference Result 237 states and 301 transitions. [2023-11-19 05:13:38,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-19 05:13:38,332 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 5.9) internal successors, (59), 11 states have internal predecessors, (59), 5 states have call successors, (11), 4 states have call predecessors, (11), 7 states have return successors, (10), 7 states have call predecessors, (10), 5 states have call successors, (10) Word has length 47 [2023-11-19 05:13:38,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:13:38,333 INFO L225 Difference]: With dead ends: 237 [2023-11-19 05:13:38,333 INFO L226 Difference]: Without dead ends: 0 [2023-11-19 05:13:38,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 108 SyntacticMatches, 7 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 725 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=211, Invalid=2045, Unknown=0, NotChecked=0, Total=2256 [2023-11-19 05:13:38,342 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 127 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 05:13:38,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 383 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 05:13:38,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-19 05:13:38,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-19 05:13:38,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:13:38,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 05:13:38,347 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 47 [2023-11-19 05:13:38,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:13:38,350 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 05:13:38,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 5.9) internal successors, (59), 11 states have internal predecessors, (59), 5 states have call successors, (11), 4 states have call predecessors, (11), 7 states have return successors, (10), 7 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-19 05:13:38,350 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-19 05:13:38,350 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 05:13:38,353 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 05:13:38,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa287f94-5f9f-4e61-bc18-623c860c5eb0/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 05:13:38,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa287f94-5f9f-4e61-bc18-623c860c5eb0/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:13:38,571 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-19 05:13:39,298 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 670 676) no Hoare annotation was computed. [2023-11-19 05:13:39,298 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 670 676) the Hoare annotation is: true [2023-11-19 05:13:39,298 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 496 507) the Hoare annotation is: true [2023-11-19 05:13:39,298 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 496 507) no Hoare annotation was computed. [2023-11-19 05:13:39,299 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 853 882) no Hoare annotation was computed. [2023-11-19 05:13:39,299 INFO L902 garLoopResultBuilder]: At program point L863-2(lines 863 877) the Hoare annotation is: true [2023-11-19 05:13:39,299 INFO L902 garLoopResultBuilder]: At program point L859(line 859) the Hoare annotation is: true [2023-11-19 05:13:39,299 INFO L899 garLoopResultBuilder]: For program point L859-1(line 859) no Hoare annotation was computed. [2023-11-19 05:13:39,299 INFO L899 garLoopResultBuilder]: For program point L878(lines 853 882) no Hoare annotation was computed. [2023-11-19 05:13:39,299 INFO L899 garLoopResultBuilder]: For program point L874(line 874) no Hoare annotation was computed. [2023-11-19 05:13:39,299 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 853 882) the Hoare annotation is: true [2023-11-19 05:13:39,299 INFO L899 garLoopResultBuilder]: For program point L867(lines 867 871) no Hoare annotation was computed. [2023-11-19 05:13:39,300 INFO L902 garLoopResultBuilder]: At program point L867-1(lines 867 871) the Hoare annotation is: true [2023-11-19 05:13:39,300 INFO L895 garLoopResultBuilder]: At program point L832(line 832) the Hoare annotation is: (let ((.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (= ~waterLevel~0 1)) (.cse0 (<= 1 ~switchedOnBeforeTS~0)) (.cse1 (= ~pumpRunning~0 1)) (.cse2 (not (= |old(~pumpRunning~0)| 1))) (.cse5 (not (= |old(~waterLevel~0)| 2)))) (and (or (< |old(~switchedOnBeforeTS~0)| 1) (and .cse0 .cse1) .cse2) (or .cse3 (not (= |old(~waterLevel~0)| 1)) (and (= ~pumpRunning~0 0) .cse4)) (or .cse3 .cse5) (or (and (or (= |old(~waterLevel~0)| ~waterLevel~0) .cse4) .cse0 .cse1) .cse2 .cse5))) [2023-11-19 05:13:39,300 INFO L899 garLoopResultBuilder]: For program point L832-1(line 832) no Hoare annotation was computed. [2023-11-19 05:13:39,300 INFO L895 garLoopResultBuilder]: At program point L692(line 692) the Hoare annotation is: (let ((.cse3 (not (= |old(~pumpRunning~0)| 1))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (not (= |old(~waterLevel~0)| 2))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= |timeShift_processEnvironment_~tmp~4#1| 0))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and .cse1 .cse2 (= ~waterLevel~0 1))) (or (< |old(~switchedOnBeforeTS~0)| 1) .cse3) (or .cse3 .cse4) (or .cse0 .cse4 (and .cse1 (= 2 ~waterLevel~0) .cse2)))) [2023-11-19 05:13:39,300 INFO L895 garLoopResultBuilder]: At program point L697(line 697) the Hoare annotation is: (let ((.cse0 (<= 1 ~switchedOnBeforeTS~0)) (.cse1 (= ~pumpRunning~0 1)) (.cse2 (not (= |old(~pumpRunning~0)| 1))) (.cse4 (not (= |old(~waterLevel~0)| 2))) (.cse3 (not (= |old(~pumpRunning~0)| 0)))) (and (or (< |old(~switchedOnBeforeTS~0)| 1) (and .cse0 .cse1) .cse2) (or .cse3 .cse4) (or (and (or (= |old(~waterLevel~0)| ~waterLevel~0) (= ~waterLevel~0 1)) .cse0 .cse1) .cse2 .cse4) (or .cse3 (not (= |old(~waterLevel~0)| 1))))) [2023-11-19 05:13:39,300 INFO L899 garLoopResultBuilder]: For program point L697-1(lines 678 702) no Hoare annotation was computed. [2023-11-19 05:13:39,301 INFO L895 garLoopResultBuilder]: At program point L817(line 817) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse4 (= ~waterLevel~0 1)) (.cse6 (not (= |old(~pumpRunning~0)| 1))) (.cse3 (not (= |old(~waterLevel~0)| 2))) (.cse2 (= 2 ~waterLevel~0)) (.cse5 (= ~pumpRunning~0 1))) (and (or .cse0 (and .cse1 .cse2) .cse3) (or (and (or (= |old(~waterLevel~0)| ~waterLevel~0) .cse4) (<= 1 ~switchedOnBeforeTS~0) .cse5) (< |old(~switchedOnBeforeTS~0)| 1) .cse6) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and .cse1 .cse4)) (or .cse6 .cse3 (and .cse2 .cse5)))) [2023-11-19 05:13:39,301 INFO L899 garLoopResultBuilder]: For program point L817-1(line 817) no Hoare annotation was computed. [2023-11-19 05:13:39,301 INFO L899 garLoopResultBuilder]: For program point L834(lines 834 844) no Hoare annotation was computed. [2023-11-19 05:13:39,301 INFO L899 garLoopResultBuilder]: For program point L830(lines 830 847) no Hoare annotation was computed. [2023-11-19 05:13:39,301 INFO L899 garLoopResultBuilder]: For program point L830-1(lines 822 850) no Hoare annotation was computed. [2023-11-19 05:13:39,301 INFO L899 garLoopResultBuilder]: For program point L657-1(lines 657 663) no Hoare annotation was computed. [2023-11-19 05:13:39,301 INFO L899 garLoopResultBuilder]: For program point L686(lines 686 694) no Hoare annotation was computed. [2023-11-19 05:13:39,302 INFO L899 garLoopResultBuilder]: For program point L682(lines 682 699) no Hoare annotation was computed. [2023-11-19 05:13:39,302 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 643 669) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse4 (= ~waterLevel~0 1)) (.cse6 (not (= |old(~pumpRunning~0)| 1))) (.cse3 (not (= |old(~waterLevel~0)| 2))) (.cse2 (= 2 ~waterLevel~0)) (.cse5 (= ~pumpRunning~0 1))) (and (or .cse0 (and .cse1 .cse2) .cse3) (or (and (or (= |old(~waterLevel~0)| ~waterLevel~0) .cse4) (<= 1 ~switchedOnBeforeTS~0) .cse5) (< |old(~switchedOnBeforeTS~0)| 1) .cse6) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and .cse1 .cse4)) (or .cse6 .cse3 (and .cse2 .cse5)))) [2023-11-19 05:13:39,302 INFO L899 garLoopResultBuilder]: For program point L835(lines 835 841) no Hoare annotation was computed. [2023-11-19 05:13:39,302 INFO L899 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2023-11-19 05:13:39,302 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 643 669) no Hoare annotation was computed. [2023-11-19 05:13:39,302 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 92) no Hoare annotation was computed. [2023-11-19 05:13:39,302 INFO L899 garLoopResultBuilder]: For program point L650-2(lines 646 668) no Hoare annotation was computed. [2023-11-19 05:13:39,303 INFO L899 garLoopResultBuilder]: For program point L597(lines 597 603) no Hoare annotation was computed. [2023-11-19 05:13:39,303 INFO L899 garLoopResultBuilder]: For program point L597-1(lines 597 603) no Hoare annotation was computed. [2023-11-19 05:13:39,303 INFO L895 garLoopResultBuilder]: At program point L622(lines 577 624) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (= |ULTIMATE.start_main_~tmp~7#1| 1)) (.cse4 (= 2 ~waterLevel~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= ~pumpRunning~0 1))) (or (and .cse0 .cse1 .cse2 (= ~waterLevel~0 1)) (and .cse0 .cse2 (<= 1 ~switchedOnBeforeTS~0) .cse3) (and .cse0 .cse1 .cse4 .cse2) (and .cse0 .cse4 .cse2 .cse3))) [2023-11-19 05:13:39,303 INFO L895 garLoopResultBuilder]: At program point L589(line 589) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~7#1| 1)) (.cse3 (= 2 ~waterLevel~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (= ~pumpRunning~0 1))) (or (and .cse0 (let ((.cse1 (= ~pumpRunning~0 0))) (or (and .cse1 .cse2 (= ~waterLevel~0 1)) (and .cse1 .cse3 .cse2)))) (and .cse0 .cse2 (<= 1 ~switchedOnBeforeTS~0) .cse4) (and .cse0 .cse3 .cse2 .cse4))) [2023-11-19 05:13:39,303 INFO L895 garLoopResultBuilder]: At program point L615-2(lines 607 620) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (= |ULTIMATE.start_main_~tmp~7#1| 1)) (.cse4 (= 2 ~waterLevel~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= ~pumpRunning~0 1))) (or (and .cse0 .cse1 .cse2 (= ~waterLevel~0 1)) (and .cse0 .cse2 (<= 1 ~switchedOnBeforeTS~0) .cse3) (and .cse0 .cse1 .cse4 .cse2) (and .cse0 .cse4 .cse2 .cse3))) [2023-11-19 05:13:39,303 INFO L899 garLoopResultBuilder]: For program point L578(lines 577 624) no Hoare annotation was computed. [2023-11-19 05:13:39,303 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-19 05:13:39,304 INFO L895 garLoopResultBuilder]: At program point L599(line 599) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (= |ULTIMATE.start_main_~tmp~7#1| 1)) (.cse4 (= 2 ~waterLevel~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= ~pumpRunning~0 1))) (or (and .cse0 .cse1 .cse2 (= ~waterLevel~0 1)) (and .cse0 .cse2 (<= 1 ~switchedOnBeforeTS~0) .cse3) (and .cse0 .cse1 .cse4 .cse2) (and .cse0 .cse4 .cse2 .cse3))) [2023-11-19 05:13:39,304 INFO L899 garLoopResultBuilder]: For program point L628(lines 567 632) no Hoare annotation was computed. [2023-11-19 05:13:39,310 INFO L899 garLoopResultBuilder]: For program point L587(lines 587 593) no Hoare annotation was computed. [2023-11-19 05:13:39,310 INFO L899 garLoopResultBuilder]: For program point L587-1(lines 587 593) no Hoare annotation was computed. [2023-11-19 05:13:39,311 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-19 05:13:39,311 INFO L895 garLoopResultBuilder]: At program point L625(lines 576 626) the Hoare annotation is: false [2023-11-19 05:13:39,311 INFO L899 garLoopResultBuilder]: For program point L935(lines 935 942) no Hoare annotation was computed. [2023-11-19 05:13:39,311 INFO L899 garLoopResultBuilder]: For program point L935-2(lines 935 942) no Hoare annotation was computed. [2023-11-19 05:13:39,312 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 484 495) no Hoare annotation was computed. [2023-11-19 05:13:39,312 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 484 495) the Hoare annotation is: (let ((.cse4 (= |old(~waterLevel~0)| 2))) (let ((.cse1 (not (= ~pumpRunning~0 1))) (.cse0 (= 2 ~waterLevel~0)) (.cse3 (= ~waterLevel~0 1)) (.cse2 (not .cse4))) (and (or .cse0 .cse1 .cse2) (or (< ~switchedOnBeforeTS~0 1) .cse1 (= |old(~waterLevel~0)| ~waterLevel~0) .cse3) (or (and .cse0 .cse4) .cse3 (let ((.cse5 (not (= ~pumpRunning~0 0)))) (and (or .cse5 .cse2) (or .cse5 (not (= |old(~waterLevel~0)| 1))))))))) [2023-11-19 05:13:39,313 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 730 738) no Hoare annotation was computed. [2023-11-19 05:13:39,313 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 730 738) the Hoare annotation is: true [2023-11-19 05:13:39,316 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-11-19 05:13:39,318 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 05:13:39,333 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:13:39 BoogieIcfgContainer [2023-11-19 05:13:39,333 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 05:13:39,335 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 05:13:39,335 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 05:13:39,335 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 05:13:39,336 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:13:18" (3/4) ... [2023-11-19 05:13:39,338 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 05:13:39,342 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2023-11-19 05:13:39,342 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2023-11-19 05:13:39,342 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2023-11-19 05:13:39,342 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2023-11-19 05:13:39,343 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2023-11-19 05:13:39,343 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2023-11-19 05:13:39,352 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 42 nodes and edges [2023-11-19 05:13:39,352 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-19 05:13:39,353 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-19 05:13:39,354 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 05:13:39,354 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 05:13:39,504 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa287f94-5f9f-4e61-bc18-623c860c5eb0/bin/utaipan-verify-t7M7D8N6sZ/witness.graphml [2023-11-19 05:13:39,504 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa287f94-5f9f-4e61-bc18-623c860c5eb0/bin/utaipan-verify-t7M7D8N6sZ/witness.yml [2023-11-19 05:13:39,506 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 05:13:39,507 INFO L158 Benchmark]: Toolchain (without parser) took 21965.64ms. Allocated memory was 125.8MB in the beginning and 461.4MB in the end (delta: 335.5MB). Free memory was 80.2MB in the beginning and 174.0MB in the end (delta: -93.9MB). Peak memory consumption was 244.2MB. Max. memory is 16.1GB. [2023-11-19 05:13:39,508 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 125.8MB. Free memory is still 72.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:13:39,508 INFO L158 Benchmark]: CACSL2BoogieTranslator took 470.39ms. Allocated memory is still 125.8MB. Free memory was 79.8MB in the beginning and 60.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 05:13:39,509 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.23ms. Allocated memory is still 125.8MB. Free memory was 60.9MB in the beginning and 58.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:13:39,509 INFO L158 Benchmark]: Boogie Preprocessor took 56.00ms. Allocated memory is still 125.8MB. Free memory was 58.8MB in the beginning and 57.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:13:39,510 INFO L158 Benchmark]: RCFGBuilder took 686.26ms. Allocated memory was 125.8MB in the beginning and 159.4MB in the end (delta: 33.6MB). Free memory was 57.1MB in the beginning and 112.3MB in the end (delta: -55.2MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. [2023-11-19 05:13:39,511 INFO L158 Benchmark]: TraceAbstraction took 20500.85ms. Allocated memory was 159.4MB in the beginning and 461.4MB in the end (delta: 302.0MB). Free memory was 111.3MB in the beginning and 181.4MB in the end (delta: -70.1MB). Peak memory consumption was 231.9MB. Max. memory is 16.1GB. [2023-11-19 05:13:39,511 INFO L158 Benchmark]: Witness Printer took 171.85ms. Allocated memory is still 461.4MB. Free memory was 181.4MB in the beginning and 174.0MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 05:13:39,515 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 125.8MB. Free memory is still 72.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 470.39ms. Allocated memory is still 125.8MB. Free memory was 79.8MB in the beginning and 60.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.23ms. Allocated memory is still 125.8MB. Free memory was 60.9MB in the beginning and 58.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.00ms. Allocated memory is still 125.8MB. Free memory was 58.8MB in the beginning and 57.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 686.26ms. Allocated memory was 125.8MB in the beginning and 159.4MB in the end (delta: 33.6MB). Free memory was 57.1MB in the beginning and 112.3MB in the end (delta: -55.2MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. * TraceAbstraction took 20500.85ms. Allocated memory was 159.4MB in the beginning and 461.4MB in the end (delta: 302.0MB). Free memory was 111.3MB in the beginning and 181.4MB in the end (delta: -70.1MB). Peak memory consumption was 231.9MB. Max. memory is 16.1GB. * Witness Printer took 171.85ms. Allocated memory is still 461.4MB. Free memory was 181.4MB in the beginning and 174.0MB 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,"featureselect.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [87] - GenericResultAtLocation [Line: 96]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [96] - GenericResultAtLocation [Line: 462]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [462] - GenericResultAtLocation [Line: 563]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [563] - GenericResultAtLocation [Line: 633]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [633] - GenericResultAtLocation [Line: 802]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [802] - GenericResultAtLocation [Line: 851]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [851] * 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: 92]: 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: 20.4s, OverallIterations: 6, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 352 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 338 mSDsluCounter, 1054 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 757 mSDsCounter, 123 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 632 IncrementalHoareTripleChecker+Invalid, 755 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 123 mSolverCounterUnsat, 297 mSDtfsCounter, 632 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 201 GetRequests, 123 SyntacticMatches, 7 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 759 ImplicationChecksByTransitivity, 6.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=171occurred in iteration=5, InterpolantAutomatonStates: 47, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 14 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 18 LocationsWithAnnotation, 204 PreInvPairs, 231 NumberOfFragments, 595 HoareAnnotationTreeSize, 204 FomulaSimplifications, 262 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 18 FomulaSimplificationsInter, 278 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 221 NumberOfCodeBlocks, 221 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 260 ConstructedInterpolants, 0 QuantifiedInterpolants, 640 SizeOfPredicates, 3 NumberOfNonLiveVariables, 239 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 8 InterpolantComputations, 5 PerfectInterpolantSequences, 57/67 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 576]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 577]: Loop Invariant Derived loop invariant: (((((((tmp == 1) && (pumpRunning == 0)) && (splverifierCounter == 0)) && (waterLevel == 1)) || ((((tmp == 1) && (splverifierCounter == 0)) && (1 <= switchedOnBeforeTS)) && (pumpRunning == 1))) || ((((tmp == 1) && (pumpRunning == 0)) && (2 == waterLevel)) && (splverifierCounter == 0))) || ((((tmp == 1) && (2 == waterLevel)) && (splverifierCounter == 0)) && (pumpRunning == 1))) - InvariantResult [Line: 863]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-11-19 05:13:39,562 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa287f94-5f9f-4e61-bc18-623c860c5eb0/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE