./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product53.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e143877-2023-46fd-ade4-e5f53734cdf1/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e143877-2023-46fd-ade4-e5f53734cdf1/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e143877-2023-46fd-ade4-e5f53734cdf1/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e143877-2023-46fd-ade4-e5f53734cdf1/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product53.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e143877-2023-46fd-ade4-e5f53734cdf1/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e143877-2023-46fd-ade4-e5f53734cdf1/bin/utaipan-verify-YMUCfTKeje --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 55ce316e71b3537e039a3a4d2127e4eace2c49bce87df09105114bd008c08800 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:20:14,666 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:20:14,748 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e143877-2023-46fd-ade4-e5f53734cdf1/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 05:20:14,756 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:20:14,758 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:20:14,797 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:20:14,798 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:20:14,798 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:20:14,799 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:20:14,799 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:20:14,800 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:20:14,800 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:20:14,801 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:20:14,803 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:20:14,803 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:20:14,803 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:20:14,804 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:20:14,804 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:20:14,808 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:20:14,809 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:20:14,809 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:20:14,810 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:20:14,810 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:20:14,811 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:20:14,811 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:20:14,811 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:20:14,811 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:20:14,812 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:20:14,812 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:20:14,812 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:20:14,812 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:20:14,813 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:20:14,813 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:20:14,813 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:20:14,816 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:20:14,816 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:20:14,817 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:20:14,817 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:20:14,817 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:20:14,818 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:20:14,818 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:20:14,818 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:20:14,819 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:20:14,819 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:20:14,819 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:20:14,820 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:20:14,820 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:20:14,820 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_8e143877-2023-46fd-ade4-e5f53734cdf1/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e143877-2023-46fd-ade4-e5f53734cdf1/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 55ce316e71b3537e039a3a4d2127e4eace2c49bce87df09105114bd008c08800 [2024-11-09 05:20:15,120 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:20:15,141 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:20:15,144 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:20:15,146 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:20:15,146 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:20:15,147 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e143877-2023-46fd-ade4-e5f53734cdf1/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/product-lines/minepump_spec1_product53.cil.c Unable to find full path for "g++" [2024-11-09 05:20:17,145 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:20:17,467 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:20:17,467 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e143877-2023-46fd-ade4-e5f53734cdf1/sv-benchmarks/c/product-lines/minepump_spec1_product53.cil.c [2024-11-09 05:20:17,484 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e143877-2023-46fd-ade4-e5f53734cdf1/bin/utaipan-verify-YMUCfTKeje/data/fbe82564f/3b4a43a3f6384645abe4ea18f6c43faa/FLAG35f96a7b8 [2024-11-09 05:20:17,726 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e143877-2023-46fd-ade4-e5f53734cdf1/bin/utaipan-verify-YMUCfTKeje/data/fbe82564f/3b4a43a3f6384645abe4ea18f6c43faa [2024-11-09 05:20:17,729 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:20:17,730 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:20:17,732 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:20:17,732 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:20:17,737 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:20:17,738 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:20:17" (1/1) ... [2024-11-09 05:20:17,739 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44ac32e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:20:17, skipping insertion in model container [2024-11-09 05:20:17,739 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:20:17" (1/1) ... [2024-11-09 05:20:17,784 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:20:17,990 WARN L250 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_8e143877-2023-46fd-ade4-e5f53734cdf1/sv-benchmarks/c/product-lines/minepump_spec1_product53.cil.c[2044,2057] [2024-11-09 05:20:18,145 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:20:18,158 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:20:18,168 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [49] [2024-11-09 05:20:18,170 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [78] [2024-11-09 05:20:18,170 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [87] [2024-11-09 05:20:18,170 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [453] [2024-11-09 05:20:18,171 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [557] [2024-11-09 05:20:18,171 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [786] [2024-11-09 05:20:18,171 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [851] [2024-11-09 05:20:18,171 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [886] [2024-11-09 05:20:18,180 WARN L250 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_8e143877-2023-46fd-ade4-e5f53734cdf1/sv-benchmarks/c/product-lines/minepump_spec1_product53.cil.c[2044,2057] [2024-11-09 05:20:18,260 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:20:18,281 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:20:18,282 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:20:18 WrapperNode [2024-11-09 05:20:18,282 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:20:18,283 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:20:18,283 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:20:18,283 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:20:18,295 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:20:18" (1/1) ... [2024-11-09 05:20:18,315 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:20:18" (1/1) ... [2024-11-09 05:20:18,345 INFO L138 Inliner]: procedures = 56, calls = 102, calls flagged for inlining = 22, calls inlined = 19, statements flattened = 215 [2024-11-09 05:20:18,346 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:20:18,348 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:20:18,349 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:20:18,349 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:20:18,359 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:20:18" (1/1) ... [2024-11-09 05:20:18,359 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:20:18" (1/1) ... [2024-11-09 05:20:18,362 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:20:18" (1/1) ... [2024-11-09 05:20:18,362 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:20:18" (1/1) ... [2024-11-09 05:20:18,367 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:20:18" (1/1) ... [2024-11-09 05:20:18,379 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:20:18" (1/1) ... [2024-11-09 05:20:18,381 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:20:18" (1/1) ... [2024-11-09 05:20:18,382 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:20:18" (1/1) ... [2024-11-09 05:20:18,389 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:20:18,394 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:20:18,394 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:20:18,394 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:20:18,395 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:20:18" (1/1) ... [2024-11-09 05:20:18,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:20:18,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e143877-2023-46fd-ade4-e5f53734cdf1/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:20:18,425 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e143877-2023-46fd-ade4-e5f53734cdf1/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:20:18,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e143877-2023-46fd-ade4-e5f53734cdf1/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:20:18,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:20:18,457 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-09 05:20:18,457 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-09 05:20:18,458 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-09 05:20:18,458 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-09 05:20:18,458 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-09 05:20:18,458 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-09 05:20:18,458 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2024-11-09 05:20:18,458 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2024-11-09 05:20:18,458 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-11-09 05:20:18,459 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-11-09 05:20:18,459 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-09 05:20:18,459 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-09 05:20:18,459 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2024-11-09 05:20:18,459 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2024-11-09 05:20:18,459 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-11-09 05:20:18,460 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-11-09 05:20:18,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 05:20:18,460 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-09 05:20:18,460 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-09 05:20:18,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:20:18,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:20:18,544 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:20:18,546 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:20:18,956 INFO L? ?]: Removed 49 outVars from TransFormulas that were not future-live. [2024-11-09 05:20:18,956 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:20:19,083 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:20:19,083 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-09 05:20:19,084 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:20:19 BoogieIcfgContainer [2024-11-09 05:20:19,084 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:20:19,089 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:20:19,090 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:20:19,093 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:20:19,093 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:20:17" (1/3) ... [2024-11-09 05:20:19,095 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dbde2bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:20:19, skipping insertion in model container [2024-11-09 05:20:19,095 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:20:18" (2/3) ... [2024-11-09 05:20:19,096 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dbde2bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:20:19, skipping insertion in model container [2024-11-09 05:20:19,097 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:20:19" (3/3) ... [2024-11-09 05:20:19,098 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product53.cil.c [2024-11-09 05:20:19,117 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:20:19,117 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 05:20:19,184 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:20:19,190 INFO L333 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, 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;@1c067bee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:20:19,190 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 05:20:19,195 INFO L276 IsEmpty]: Start isEmpty. Operand has 68 states, 41 states have (on average 1.4146341463414633) internal successors, (58), 51 states have internal predecessors, (58), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-09 05:20:19,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-09 05:20:19,204 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:20:19,205 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:20:19,206 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:20:19,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:20:19,212 INFO L85 PathProgramCache]: Analyzing trace with hash -609574852, now seen corresponding path program 1 times [2024-11-09 05:20:19,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:20:19,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907592491] [2024-11-09 05:20:19,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:20:19,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:20:19,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:20:19,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:20:19,390 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:20:19,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907592491] [2024-11-09 05:20:19,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907592491] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:20:19,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:20:19,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:20:19,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847654028] [2024-11-09 05:20:19,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:20:19,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 05:20:19,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:20:19,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 05:20:19,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 05:20:19,432 INFO L87 Difference]: Start difference. First operand has 68 states, 41 states have (on average 1.4146341463414633) internal successors, (58), 51 states have internal predecessors, (58), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:20:19,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:20:19,507 INFO L93 Difference]: Finished difference Result 134 states and 181 transitions. [2024-11-09 05:20:19,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 05:20:19,510 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2024-11-09 05:20:19,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:20:19,518 INFO L225 Difference]: With dead ends: 134 [2024-11-09 05:20:19,518 INFO L226 Difference]: Without dead ends: 63 [2024-11-09 05:20:19,522 INFO L431 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 [2024-11-09 05:20:19,525 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:20:19,526 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 69 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:20:19,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-11-09 05:20:19,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2024-11-09 05:20:19,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 38 states have (on average 1.3157894736842106) internal successors, (50), 47 states have internal predecessors, (50), 16 states have call successors, (16), 9 states have call predecessors, (16), 8 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-09 05:20:19,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 81 transitions. [2024-11-09 05:20:19,568 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 81 transitions. Word has length 16 [2024-11-09 05:20:19,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:20:19,569 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 81 transitions. [2024-11-09 05:20:19,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:20:19,569 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 81 transitions. [2024-11-09 05:20:19,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-09 05:20:19,571 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:20:19,571 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:20:19,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 05:20:19,572 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:20:19,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:20:19,572 INFO L85 PathProgramCache]: Analyzing trace with hash -231033631, now seen corresponding path program 1 times [2024-11-09 05:20:19,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:20:19,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575482125] [2024-11-09 05:20:19,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:20:19,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:20:19,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:20:19,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:20:19,689 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:20:19,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575482125] [2024-11-09 05:20:19,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575482125] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:20:19,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:20:19,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:20:19,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152944316] [2024-11-09 05:20:19,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:20:19,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:20:19,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:20:19,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:20:19,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:20:19,693 INFO L87 Difference]: Start difference. First operand 63 states and 81 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:20:19,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:20:19,749 INFO L93 Difference]: Finished difference Result 103 states and 133 transitions. [2024-11-09 05:20:19,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:20:19,750 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2024-11-09 05:20:19,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:20:19,752 INFO L225 Difference]: With dead ends: 103 [2024-11-09 05:20:19,752 INFO L226 Difference]: Without dead ends: 55 [2024-11-09 05:20:19,753 INFO L431 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 [2024-11-09 05:20:19,754 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 7 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:20:19,755 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 101 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:20:19,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-11-09 05:20:19,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2024-11-09 05:20:19,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 42 states have internal predecessors, (44), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 8 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 05:20:19,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 70 transitions. [2024-11-09 05:20:19,769 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 70 transitions. Word has length 17 [2024-11-09 05:20:19,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:20:19,769 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 70 transitions. [2024-11-09 05:20:19,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:20:19,769 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 70 transitions. [2024-11-09 05:20:19,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-09 05:20:19,773 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:20:19,773 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:20:19,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 05:20:19,774 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:20:19,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:20:19,775 INFO L85 PathProgramCache]: Analyzing trace with hash -613304986, now seen corresponding path program 1 times [2024-11-09 05:20:19,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:20:19,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438026440] [2024-11-09 05:20:19,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:20:19,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:20:19,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:20:19,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:20:19,958 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:20:19,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438026440] [2024-11-09 05:20:19,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438026440] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:20:19,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:20:19,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:20:19,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403363922] [2024-11-09 05:20:19,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:20:19,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:20:19,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:20:19,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:20:19,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:20:19,962 INFO L87 Difference]: Start difference. First operand 55 states and 70 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:20:20,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:20:20,025 INFO L93 Difference]: Finished difference Result 108 states and 139 transitions. [2024-11-09 05:20:20,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:20:20,026 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2024-11-09 05:20:20,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:20:20,027 INFO L225 Difference]: With dead ends: 108 [2024-11-09 05:20:20,027 INFO L226 Difference]: Without dead ends: 55 [2024-11-09 05:20:20,028 INFO L431 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 [2024-11-09 05:20:20,029 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 59 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:20:20,030 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 53 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:20:20,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-11-09 05:20:20,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2024-11-09 05:20:20,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 33 states have (on average 1.303030303030303) internal successors, (43), 42 states have internal predecessors, (43), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 8 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 05:20:20,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 69 transitions. [2024-11-09 05:20:20,044 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 69 transitions. Word has length 19 [2024-11-09 05:20:20,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:20:20,045 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 69 transitions. [2024-11-09 05:20:20,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:20:20,045 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 69 transitions. [2024-11-09 05:20:20,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-09 05:20:20,047 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:20:20,047 INFO L215 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] [2024-11-09 05:20:20,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 05:20:20,047 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:20:20,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:20:20,048 INFO L85 PathProgramCache]: Analyzing trace with hash 827446915, now seen corresponding path program 1 times [2024-11-09 05:20:20,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:20:20,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203804000] [2024-11-09 05:20:20,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:20:20,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:20:20,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:20:20,152 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:20:20,152 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:20:20,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203804000] [2024-11-09 05:20:20,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203804000] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:20:20,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:20:20,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:20:20,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014945944] [2024-11-09 05:20:20,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:20:20,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:20:20,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:20:20,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:20:20,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:20:20,159 INFO L87 Difference]: Start difference. First operand 55 states and 69 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 05:20:20,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:20:20,265 INFO L93 Difference]: Finished difference Result 146 states and 188 transitions. [2024-11-09 05:20:20,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:20:20,269 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 29 [2024-11-09 05:20:20,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:20:20,270 INFO L225 Difference]: With dead ends: 146 [2024-11-09 05:20:20,270 INFO L226 Difference]: Without dead ends: 93 [2024-11-09 05:20:20,271 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:20:20,276 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 41 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:20:20,277 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 111 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:20:20,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-09 05:20:20,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2024-11-09 05:20:20,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 58 states have (on average 1.2413793103448276) internal successors, (72), 66 states have internal predecessors, (72), 17 states have call successors, (17), 15 states have call predecessors, (17), 15 states have return successors, (23), 15 states have call predecessors, (23), 17 states have call successors, (23) [2024-11-09 05:20:20,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 112 transitions. [2024-11-09 05:20:20,314 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 112 transitions. Word has length 29 [2024-11-09 05:20:20,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:20:20,314 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 112 transitions. [2024-11-09 05:20:20,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 05:20:20,315 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 112 transitions. [2024-11-09 05:20:20,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-09 05:20:20,316 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:20:20,316 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:20:20,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 05:20:20,316 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:20:20,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:20:20,318 INFO L85 PathProgramCache]: Analyzing trace with hash -78581840, now seen corresponding path program 1 times [2024-11-09 05:20:20,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:20:20,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884931902] [2024-11-09 05:20:20,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:20:20,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:20:20,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:20:20,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:20:20,659 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:20:20,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884931902] [2024-11-09 05:20:20,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884931902] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:20:20,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:20:20,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 05:20:20,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499953079] [2024-11-09 05:20:20,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:20:20,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:20:20,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:20:20,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:20:20,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:20:20,661 INFO L87 Difference]: Start difference. First operand 91 states and 112 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 05:20:20,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:20:20,892 INFO L93 Difference]: Finished difference Result 259 states and 318 transitions. [2024-11-09 05:20:20,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:20:20,893 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 4 states have call successors, (4), 2 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 32 [2024-11-09 05:20:20,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:20:20,895 INFO L225 Difference]: With dead ends: 259 [2024-11-09 05:20:20,895 INFO L226 Difference]: Without dead ends: 170 [2024-11-09 05:20:20,896 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:20:20,901 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 85 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:20:20,902 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 200 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:20:20,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2024-11-09 05:20:20,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 142. [2024-11-09 05:20:20,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 92 states have (on average 1.2173913043478262) internal successors, (112), 101 states have internal predecessors, (112), 24 states have call successors, (24), 22 states have call predecessors, (24), 25 states have return successors, (33), 24 states have call predecessors, (33), 24 states have call successors, (33) [2024-11-09 05:20:20,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 169 transitions. [2024-11-09 05:20:20,945 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 169 transitions. Word has length 32 [2024-11-09 05:20:20,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:20:20,945 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 169 transitions. [2024-11-09 05:20:20,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 05:20:20,945 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 169 transitions. [2024-11-09 05:20:20,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-09 05:20:20,950 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:20:20,950 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:20:20,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 05:20:20,950 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:20:20,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:20:20,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1574219055, now seen corresponding path program 1 times [2024-11-09 05:20:20,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:20:20,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982667415] [2024-11-09 05:20:20,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:20:20,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:20:20,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:20:21,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:20:21,115 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:20:21,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982667415] [2024-11-09 05:20:21,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982667415] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:20:21,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:20:21,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 05:20:21,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819595955] [2024-11-09 05:20:21,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:20:21,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:20:21,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:20:21,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:20:21,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:20:21,120 INFO L87 Difference]: Start difference. First operand 142 states and 169 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 05:20:21,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:20:21,335 INFO L93 Difference]: Finished difference Result 413 states and 500 transitions. [2024-11-09 05:20:21,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 05:20:21,337 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 35 [2024-11-09 05:20:21,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:20:21,339 INFO L225 Difference]: With dead ends: 413 [2024-11-09 05:20:21,340 INFO L226 Difference]: Without dead ends: 273 [2024-11-09 05:20:21,345 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-09 05:20:21,346 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 45 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:20:21,346 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 232 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:20:21,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2024-11-09 05:20:21,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 267. [2024-11-09 05:20:21,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 174 states have (on average 1.1839080459770115) internal successors, (206), 188 states have internal predecessors, (206), 45 states have call successors, (45), 41 states have call predecessors, (45), 47 states have return successors, (63), 45 states have call predecessors, (63), 45 states have call successors, (63) [2024-11-09 05:20:21,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 314 transitions. [2024-11-09 05:20:21,408 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 314 transitions. Word has length 35 [2024-11-09 05:20:21,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:20:21,409 INFO L471 AbstractCegarLoop]: Abstraction has 267 states and 314 transitions. [2024-11-09 05:20:21,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 05:20:21,410 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 314 transitions. [2024-11-09 05:20:21,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-09 05:20:21,414 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:20:21,414 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:20:21,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 05:20:21,415 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:20:21,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:20:21,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1280541862, now seen corresponding path program 1 times [2024-11-09 05:20:21,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:20:21,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832018635] [2024-11-09 05:20:21,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:20:21,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:20:21,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 05:20:21,436 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 05:20:21,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 05:20:21,486 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 05:20:21,486 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 05:20:21,487 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 05:20:21,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 05:20:21,491 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:20:21,528 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 05:20:21,531 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:20:21 BoogieIcfgContainer [2024-11-09 05:20:21,531 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 05:20:21,532 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 05:20:21,532 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 05:20:21,532 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 05:20:21,533 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:20:19" (3/4) ... [2024-11-09 05:20:21,534 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-09 05:20:21,595 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e143877-2023-46fd-ade4-e5f53734cdf1/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 05:20:21,595 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 05:20:21,596 INFO L158 Benchmark]: Toolchain (without parser) took 3865.55ms. Allocated memory was 155.2MB in the beginning and 192.9MB in the end (delta: 37.7MB). Free memory was 115.5MB in the beginning and 119.7MB in the end (delta: -4.1MB). Peak memory consumption was 34.6MB. Max. memory is 16.1GB. [2024-11-09 05:20:21,596 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 155.2MB. Free memory is still 96.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:20:21,596 INFO L158 Benchmark]: CACSL2BoogieTranslator took 550.80ms. Allocated memory is still 155.2MB. Free memory was 115.2MB in the beginning and 93.5MB in the end (delta: 21.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-09 05:20:21,597 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.90ms. Allocated memory is still 155.2MB. Free memory was 93.5MB in the beginning and 91.1MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 05:20:21,597 INFO L158 Benchmark]: Boogie Preprocessor took 40.29ms. Allocated memory is still 155.2MB. Free memory was 91.1MB in the beginning and 89.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:20:21,597 INFO L158 Benchmark]: RCFGBuilder took 690.52ms. Allocated memory was 155.2MB in the beginning and 192.9MB in the end (delta: 37.7MB). Free memory was 89.4MB in the beginning and 141.5MB in the end (delta: -52.1MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. [2024-11-09 05:20:21,598 INFO L158 Benchmark]: TraceAbstraction took 2442.13ms. Allocated memory is still 192.9MB. Free memory was 141.5MB in the beginning and 123.8MB in the end (delta: 17.6MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. [2024-11-09 05:20:21,598 INFO L158 Benchmark]: Witness Printer took 62.91ms. Allocated memory is still 192.9MB. Free memory was 123.8MB in the beginning and 119.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 05:20:21,600 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 155.2MB. Free memory is still 96.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 550.80ms. Allocated memory is still 155.2MB. Free memory was 115.2MB in the beginning and 93.5MB in the end (delta: 21.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.90ms. Allocated memory is still 155.2MB. Free memory was 93.5MB in the beginning and 91.1MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.29ms. Allocated memory is still 155.2MB. Free memory was 91.1MB in the beginning and 89.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 690.52ms. Allocated memory was 155.2MB in the beginning and 192.9MB in the end (delta: 37.7MB). Free memory was 89.4MB in the beginning and 141.5MB in the end (delta: -52.1MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. * TraceAbstraction took 2442.13ms. Allocated memory is still 192.9MB. Free memory was 141.5MB in the beginning and 123.8MB in the end (delta: 17.6MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. * Witness Printer took 62.91ms. Allocated memory is still 192.9MB. Free memory was 123.8MB in the beginning and 119.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. 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,"Specification1_spec.i","") [49] - GenericResultAtLocation [Line: 78]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [78] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [87] - GenericResultAtLocation [Line: 453]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [453] - GenericResultAtLocation [Line: 557]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [557] - GenericResultAtLocation [Line: 786]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [786] - GenericResultAtLocation [Line: 851]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [851] - GenericResultAtLocation [Line: 886]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [886] * 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 - CounterExampleResult [Line: 83]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L257] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L454] int cleanupTimeShifts = 4; [L564] int pumpRunning = 0; [L565] int systemActive = 1; [L888] int waterLevel = 1; [L889] int methaneLevelCritical = 0; [L535] int retValue_acc ; [L536] int tmp ; [L540] FCALL select_helpers() [L541] FCALL select_features() [L542] CALL, EXPR valid_product() [L878] int retValue_acc ; [L881] retValue_acc = 1 [L882] return (retValue_acc); [L542] RET, EXPR valid_product() [L542] tmp = valid_product() [L544] COND TRUE \read(tmp) [L546] FCALL setup() [L547] CALL runTest() [L526] CALL test() [L788] int splverifierCounter ; [L789] int tmp ; [L790] int tmp___0 ; [L791] int tmp___1 ; [L792] int tmp___2 ; [L795] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L797] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L799] COND TRUE splverifierCounter < 4 [L805] tmp = __VERIFIER_nondet_int() [L807] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L809] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L906] COND TRUE waterLevel < 2 [L907] waterLevel = waterLevel + 1 [L809] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=2] [L815] tmp___0 = __VERIFIER_nondet_int() [L817] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=2] [L819] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L918] COND FALSE !(\read(methaneLevelCritical)) [L921] methaneLevelCritical = 1 [L819] RET changeMethaneLevel() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=2] [L825] tmp___2 = __VERIFIER_nondet_int() [L827] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp___1=50, waterLevel=2] [L840] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L571] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L578] COND TRUE \read(systemActive) [L580] CALL processEnvironment() [L652] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L655] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L670] CALL processEnvironment__wrappee__lowWaterSensor() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L626] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L629] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L644] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L600] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L603] COND TRUE ! pumpRunning [L605] CALL, EXPR isHighWaterLevel() [L749] int retValue_acc ; [L750] int tmp ; [L751] int tmp___0 ; [L755] CALL, EXPR isHighWaterSensorDry() [L968] int retValue_acc ; [L971] COND FALSE !(waterLevel < 2) [L975] retValue_acc = 0 [L976] return (retValue_acc); [L755] RET, EXPR isHighWaterSensorDry() [L755] tmp = isHighWaterSensorDry() [L757] COND FALSE !(\read(tmp)) [L760] tmp___0 = 1 [L762] retValue_acc = tmp___0 [L763] return (retValue_acc); [L605] RET, EXPR isHighWaterLevel() [L605] tmp = isHighWaterLevel() [L607] COND TRUE \read(tmp) [L609] CALL activatePump() [L680] pumpRunning = 1 [L609] RET activatePump() [L644] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L670] RET processEnvironment__wrappee__lowWaterSensor() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L580] RET processEnvironment() [L586] CALL __utac_acc__Specification1_spec__1() [L54] int tmp ; [L55] int tmp___0 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L59] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L927] int retValue_acc ; [L930] retValue_acc = methaneLevelCritical [L931] return (retValue_acc); [L59] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L59] tmp = isMethaneLevelCritical() [L61] COND TRUE \read(tmp) [L63] CALL, EXPR isPumpRunning() [L704] int retValue_acc ; [L707] retValue_acc = pumpRunning [L708] return (retValue_acc); [L63] RET, EXPR isPumpRunning() [L63] tmp___0 = isPumpRunning() [L65] COND TRUE \read(tmp___0) [L67] CALL __automaton_fail() [L83] reach_error() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.3s, OverallIterations: 7, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 242 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 237 mSDsluCounter, 766 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 391 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 320 IncrementalHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 375 mSDtfsCounter, 320 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=267occurred in iteration=6, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 36 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 186 NumberOfCodeBlocks, 186 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 142 ConstructedInterpolants, 0 QuantifiedInterpolants, 305 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 2/2 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 RESULT: Ultimate proved your program to be incorrect! [2024-11-09 05:20:21,636 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e143877-2023-46fd-ade4-e5f53734cdf1/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE