./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product30.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 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_1dbe86a3-719d-44a7-946b-7e7af193f43d/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dbe86a3-719d-44a7-946b-7e7af193f43d/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dbe86a3-719d-44a7-946b-7e7af193f43d/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dbe86a3-719d-44a7-946b-7e7af193f43d/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product30.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dbe86a3-719d-44a7-946b-7e7af193f43d/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dbe86a3-719d-44a7-946b-7e7af193f43d/bin/utaipan-verify-mE87zJ7Ire --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 57b9da01117a2ba17baea08a2ca63a083a2352f35e4a8b92086e48b0ce29e696 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:40:11,661 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:40:11,775 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dbe86a3-719d-44a7-946b-7e7af193f43d/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 20:40:11,780 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:40:11,781 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:40:11,807 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:40:11,808 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:40:11,809 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:40:11,809 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:40:11,810 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:40:11,811 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:40:11,811 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:40:11,812 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:40:11,813 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:40:11,813 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:40:11,814 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:40:11,815 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:40:11,815 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:40:11,816 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:40:11,817 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:40:11,817 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:40:11,818 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:40:11,819 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:40:11,820 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:40:11,820 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:40:11,821 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:40:11,821 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:40:11,822 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:40:11,822 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:40:11,823 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:40:11,823 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:40:11,824 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:40:11,824 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:40:11,824 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:40:11,825 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:40:11,825 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:40:11,826 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:40:11,826 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:40:11,827 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:40:11,827 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:40:11,828 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:40:11,828 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:40:11,829 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:40:11,829 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:40:11,830 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:40:11,830 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:40:11,831 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:40:11,831 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_1dbe86a3-719d-44a7-946b-7e7af193f43d/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dbe86a3-719d-44a7-946b-7e7af193f43d/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 57b9da01117a2ba17baea08a2ca63a083a2352f35e4a8b92086e48b0ce29e696 [2023-11-23 20:40:12,078 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:40:12,111 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:40:12,113 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:40:12,116 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:40:12,116 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:40:12,118 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dbe86a3-719d-44a7-946b-7e7af193f43d/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/product-lines/minepump_spec4_product30.cil.c [2023-11-23 20:40:15,265 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:40:15,574 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:40:15,575 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dbe86a3-719d-44a7-946b-7e7af193f43d/sv-benchmarks/c/product-lines/minepump_spec4_product30.cil.c [2023-11-23 20:40:15,601 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dbe86a3-719d-44a7-946b-7e7af193f43d/bin/utaipan-verify-mE87zJ7Ire/data/db48c9235/b738995a6d94430eb2de143c7a6c0de1/FLAGaec4bc322 [2023-11-23 20:40:15,614 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dbe86a3-719d-44a7-946b-7e7af193f43d/bin/utaipan-verify-mE87zJ7Ire/data/db48c9235/b738995a6d94430eb2de143c7a6c0de1 [2023-11-23 20:40:15,616 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:40:15,618 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:40:15,620 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:40:15,620 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:40:15,626 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:40:15,626 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:40:15" (1/1) ... [2023-11-23 20:40:15,628 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@534e33a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:40:15, skipping insertion in model container [2023-11-23 20:40:15,628 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:40:15" (1/1) ... [2023-11-23 20:40:15,685 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:40:16,045 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_1dbe86a3-719d-44a7-946b-7e7af193f43d/sv-benchmarks/c/product-lines/minepump_spec4_product30.cil.c[18223,18236] [2023-11-23 20:40:16,050 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:40:16,066 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:40:16,077 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] [2023-11-23 20:40:16,079 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [145] [2023-11-23 20:40:16,079 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [173] [2023-11-23 20:40:16,080 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [381] [2023-11-23 20:40:16,080 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [449] [2023-11-23 20:40:16,080 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [815] [2023-11-23 20:40:16,080 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [914] [2023-11-23 20:40:16,081 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [949] [2023-11-23 20:40:16,182 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_1dbe86a3-719d-44a7-946b-7e7af193f43d/sv-benchmarks/c/product-lines/minepump_spec4_product30.cil.c[18223,18236] [2023-11-23 20:40:16,183 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:40:16,204 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:40:16,205 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:40:16 WrapperNode [2023-11-23 20:40:16,205 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:40:16,206 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:40:16,207 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:40:16,207 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:40:16,215 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:40:16" (1/1) ... [2023-11-23 20:40:16,235 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:40:16" (1/1) ... [2023-11-23 20:40:16,264 INFO L138 Inliner]: procedures = 55, calls = 100, calls flagged for inlining = 22, calls inlined = 18, statements flattened = 193 [2023-11-23 20:40:16,265 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:40:16,265 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:40:16,266 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:40:16,266 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:40:16,278 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:40:16" (1/1) ... [2023-11-23 20:40:16,278 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:40:16" (1/1) ... [2023-11-23 20:40:16,281 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:40:16" (1/1) ... [2023-11-23 20:40:16,282 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:40:16" (1/1) ... [2023-11-23 20:40:16,288 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:40:16" (1/1) ... [2023-11-23 20:40:16,293 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:40:16" (1/1) ... [2023-11-23 20:40:16,295 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:40:16" (1/1) ... [2023-11-23 20:40:16,296 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:40:16" (1/1) ... [2023-11-23 20:40:16,300 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:40:16,301 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:40:16,301 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:40:16,301 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:40:16,302 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:40:16" (1/1) ... [2023-11-23 20:40:16,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:40:16,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dbe86a3-719d-44a7-946b-7e7af193f43d/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:40:16,338 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dbe86a3-719d-44a7-946b-7e7af193f43d/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:40:16,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dbe86a3-719d-44a7-946b-7e7af193f43d/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:40:16,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:40:16,415 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-11-23 20:40:16,415 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-11-23 20:40:16,416 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-23 20:40:16,416 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-23 20:40:16,416 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-23 20:40:16,416 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-23 20:40:16,417 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-23 20:40:16,418 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-23 20:40:16,418 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2023-11-23 20:40:16,419 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2023-11-23 20:40:16,419 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-11-23 20:40:16,420 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-11-23 20:40:16,421 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-11-23 20:40:16,424 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-11-23 20:40:16,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:40:16,425 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-23 20:40:16,425 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-23 20:40:16,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:40:16,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:40:16,547 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:40:16,549 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:40:16,858 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:40:17,018 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:40:17,021 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-23 20:40:17,023 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:40:17 BoogieIcfgContainer [2023-11-23 20:40:17,024 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:40:17,028 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:40:17,028 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:40:17,031 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:40:17,032 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:40:15" (1/3) ... [2023-11-23 20:40:17,033 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32741df7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:40:17, skipping insertion in model container [2023-11-23 20:40:17,033 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:40:16" (2/3) ... [2023-11-23 20:40:17,034 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32741df7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:40:17, skipping insertion in model container [2023-11-23 20:40:17,034 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:40:17" (3/3) ... [2023-11-23 20:40:17,035 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product30.cil.c [2023-11-23 20:40:17,058 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:40:17,059 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:40:17,115 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:40:17,122 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;@c98f662, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:40:17,123 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:40:17,128 INFO L276 IsEmpty]: Start isEmpty. Operand has 59 states, 36 states have (on average 1.4166666666666667) internal successors, (51), 44 states have internal predecessors, (51), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-23 20:40:17,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-23 20:40:17,138 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:40:17,139 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:40:17,139 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:40:17,146 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:40:17,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1277988439, now seen corresponding path program 1 times [2023-11-23 20:40:17,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:40:17,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782956513] [2023-11-23 20:40:17,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:40:17,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:40:17,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:40:17,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:40:17,338 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:40:17,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782956513] [2023-11-23 20:40:17,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782956513] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:40:17,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:40:17,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 20:40:17,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146896619] [2023-11-23 20:40:17,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:40:17,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 20:40:17,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:40:17,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 20:40:17,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 20:40:17,433 INFO L87 Difference]: Start difference. First operand has 59 states, 36 states have (on average 1.4166666666666667) internal successors, (51), 44 states have internal predecessors, (51), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 20:40:17,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:40:17,543 INFO L93 Difference]: Finished difference Result 116 states and 155 transitions. [2023-11-23 20:40:17,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 20:40:17,546 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-23 20:40:17,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:40:17,555 INFO L225 Difference]: With dead ends: 116 [2023-11-23 20:40:17,555 INFO L226 Difference]: Without dead ends: 54 [2023-11-23 20:40:17,559 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 [2023-11-23 20:40:17,563 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 20:40:17,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 20:40:17,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2023-11-23 20:40:17,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2023-11-23 20:40:17,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 33 states have (on average 1.303030303030303) internal successors, (43), 40 states have internal predecessors, (43), 13 states have call successors, (13), 8 states have call predecessors, (13), 7 states have return successors, (12), 8 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-23 20:40:17,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 68 transitions. [2023-11-23 20:40:17,611 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 68 transitions. Word has length 12 [2023-11-23 20:40:17,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:40:17,612 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 68 transitions. [2023-11-23 20:40:17,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 20:40:17,612 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 68 transitions. [2023-11-23 20:40:17,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-23 20:40:17,614 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:40:17,615 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:40:17,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 20:40:17,615 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:40:17,616 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:40:17,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1790802538, now seen corresponding path program 1 times [2023-11-23 20:40:17,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:40:17,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363195098] [2023-11-23 20:40:17,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:40:17,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:40:17,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:40:17,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:40:17,856 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:40:17,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363195098] [2023-11-23 20:40:17,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363195098] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:40:17,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:40:17,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:40:17,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603348001] [2023-11-23 20:40:17,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:40:17,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:40:17,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:40:17,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:40:17,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:40:17,865 INFO L87 Difference]: Start difference. First operand 54 states and 68 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 20:40:17,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:40:17,931 INFO L93 Difference]: Finished difference Result 85 states and 107 transitions. [2023-11-23 20:40:17,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:40:17,932 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-11-23 20:40:17,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:40:17,934 INFO L225 Difference]: With dead ends: 85 [2023-11-23 20:40:17,936 INFO L226 Difference]: Without dead ends: 46 [2023-11-23 20:40:17,937 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 [2023-11-23 20:40:17,939 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 7 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 20:40:17,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 79 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 20:40:17,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2023-11-23 20:40:17,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2023-11-23 20:40:17,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 28 states have (on average 1.3214285714285714) internal successors, (37), 35 states have internal predecessors, (37), 10 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-23 20:40:17,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 57 transitions. [2023-11-23 20:40:17,960 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 57 transitions. Word has length 13 [2023-11-23 20:40:17,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:40:17,960 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 57 transitions. [2023-11-23 20:40:17,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 20:40:17,961 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 57 transitions. [2023-11-23 20:40:17,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-23 20:40:17,963 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:40:17,963 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:40:17,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 20:40:17,963 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:40:17,964 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:40:17,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1277245863, now seen corresponding path program 1 times [2023-11-23 20:40:17,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:40:17,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868932770] [2023-11-23 20:40:17,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:40:17,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:40:18,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:40:18,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:40:18,199 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:40:18,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868932770] [2023-11-23 20:40:18,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868932770] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:40:18,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:40:18,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:40:18,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170485474] [2023-11-23 20:40:18,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:40:18,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 20:40:18,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:40:18,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 20:40:18,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 20:40:18,202 INFO L87 Difference]: Start difference. First operand 46 states and 57 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 20:40:18,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:40:18,307 INFO L93 Difference]: Finished difference Result 90 states and 113 transitions. [2023-11-23 20:40:18,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 20:40:18,307 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-11-23 20:40:18,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:40:18,309 INFO L225 Difference]: With dead ends: 90 [2023-11-23 20:40:18,309 INFO L226 Difference]: Without dead ends: 46 [2023-11-23 20:40:18,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 20:40:18,311 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 52 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 20:40:18,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 55 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 20:40:18,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2023-11-23 20:40:18,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2023-11-23 20:40:18,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 35 states have internal predecessors, (36), 10 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-23 20:40:18,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 56 transitions. [2023-11-23 20:40:18,328 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 56 transitions. Word has length 15 [2023-11-23 20:40:18,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:40:18,329 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 56 transitions. [2023-11-23 20:40:18,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 20:40:18,329 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 56 transitions. [2023-11-23 20:40:18,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-23 20:40:18,331 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:40:18,331 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:40:18,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 20:40:18,332 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:40:18,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:40:18,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1911652606, now seen corresponding path program 1 times [2023-11-23 20:40:18,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:40:18,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12389021] [2023-11-23 20:40:18,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:40:18,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:40:18,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:40:18,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:40:18,638 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:40:18,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12389021] [2023-11-23 20:40:18,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12389021] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:40:18,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:40:18,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 20:40:18,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956807483] [2023-11-23 20:40:18,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:40:18,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 20:40:18,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:40:18,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 20:40:18,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 20:40:18,641 INFO L87 Difference]: Start difference. First operand 46 states and 56 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 3 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) [2023-11-23 20:40:18,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:40:18,794 INFO L93 Difference]: Finished difference Result 118 states and 146 transitions. [2023-11-23 20:40:18,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 20:40:18,800 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 3 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 25 [2023-11-23 20:40:18,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:40:18,802 INFO L225 Difference]: With dead ends: 118 [2023-11-23 20:40:18,802 INFO L226 Difference]: Without dead ends: 74 [2023-11-23 20:40:18,803 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 [2023-11-23 20:40:18,804 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 22 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 20:40:18,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 162 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 20:40:18,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2023-11-23 20:40:18,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 72. [2023-11-23 20:40:18,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 46 states have (on average 1.2173913043478262) internal successors, (56), 54 states have internal predecessors, (56), 14 states have call successors, (14), 11 states have call predecessors, (14), 11 states have return successors, (14), 10 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-23 20:40:18,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 84 transitions. [2023-11-23 20:40:18,835 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 84 transitions. Word has length 25 [2023-11-23 20:40:18,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:40:18,835 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 84 transitions. [2023-11-23 20:40:18,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 3 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) [2023-11-23 20:40:18,836 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 84 transitions. [2023-11-23 20:40:18,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-23 20:40:18,846 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:40:18,846 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:40:18,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 20:40:18,847 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:40:18,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:40:18,848 INFO L85 PathProgramCache]: Analyzing trace with hash 509058599, now seen corresponding path program 1 times [2023-11-23 20:40:18,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:40:18,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535390079] [2023-11-23 20:40:18,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:40:18,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:40:18,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:40:19,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:40:19,181 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:40:19,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535390079] [2023-11-23 20:40:19,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535390079] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:40:19,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:40:19,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 20:40:19,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627853983] [2023-11-23 20:40:19,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:40:19,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 20:40:19,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:40:19,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 20:40:19,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-23 20:40:19,191 INFO L87 Difference]: Start difference. First operand 72 states and 84 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-23 20:40:19,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:40:19,390 INFO L93 Difference]: Finished difference Result 104 states and 123 transitions. [2023-11-23 20:40:19,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 20:40:19,391 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 28 [2023-11-23 20:40:19,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:40:19,392 INFO L225 Difference]: With dead ends: 104 [2023-11-23 20:40:19,393 INFO L226 Difference]: Without dead ends: 0 [2023-11-23 20:40:19,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2023-11-23 20:40:19,404 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 68 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 20:40:19,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 100 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 20:40:19,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-23 20:40:19,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-23 20:40:19,408 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) [2023-11-23 20:40:19,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-23 20:40:19,409 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2023-11-23 20:40:19,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:40:19,409 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 20:40:19,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-23 20:40:19,410 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-23 20:40:19,410 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 20:40:19,412 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 20:40:19,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 20:40:19,418 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-23 20:40:19,961 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 290 297) no Hoare annotation was computed. [2023-11-23 20:40:19,962 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 290 297) the Hoare annotation is: true [2023-11-23 20:40:19,962 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 206 212) no Hoare annotation was computed. [2023-11-23 20:40:19,962 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 206 212) the Hoare annotation is: true [2023-11-23 20:40:19,962 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 83 94) the Hoare annotation is: true [2023-11-23 20:40:19,963 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 83 94) no Hoare annotation was computed. [2023-11-23 20:40:19,963 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 817 846) no Hoare annotation was computed. [2023-11-23 20:40:19,963 INFO L899 garLoopResultBuilder]: For program point L831(lines 831 835) no Hoare annotation was computed. [2023-11-23 20:40:19,963 INFO L902 garLoopResultBuilder]: At program point L831-1(lines 831 835) the Hoare annotation is: true [2023-11-23 20:40:19,964 INFO L902 garLoopResultBuilder]: At program point L827-2(lines 827 841) the Hoare annotation is: true [2023-11-23 20:40:19,964 INFO L902 garLoopResultBuilder]: At program point L823(line 823) the Hoare annotation is: true [2023-11-23 20:40:19,964 INFO L899 garLoopResultBuilder]: For program point L823-1(line 823) no Hoare annotation was computed. [2023-11-23 20:40:19,964 INFO L899 garLoopResultBuilder]: For program point L842(lines 817 846) no Hoare annotation was computed. [2023-11-23 20:40:19,964 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 817 846) the Hoare annotation is: true [2023-11-23 20:40:19,964 INFO L899 garLoopResultBuilder]: For program point L838(line 838) no Hoare annotation was computed. [2023-11-23 20:40:19,965 INFO L895 garLoopResultBuilder]: At program point L254(line 254) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (< |old(~waterLevel~0)| 2) .cse1) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1))) [2023-11-23 20:40:19,965 INFO L895 garLoopResultBuilder]: At program point L250(line 250) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (< |old(~waterLevel~0)| 2) .cse1) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1))) [2023-11-23 20:40:19,965 INFO L895 garLoopResultBuilder]: At program point L246(line 246) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (< |old(~waterLevel~0)| 2) .cse1) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1))) [2023-11-23 20:40:19,966 INFO L899 garLoopResultBuilder]: For program point L246-1(line 246) no Hoare annotation was computed. [2023-11-23 20:40:19,966 INFO L895 garLoopResultBuilder]: At program point L259(line 259) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 (and .cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (< |old(~waterLevel~0)| 2) .cse2) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and .cse1 (= ~waterLevel~0 1)) .cse2))) [2023-11-23 20:40:19,967 INFO L899 garLoopResultBuilder]: For program point L259-1(lines 240 264) no Hoare annotation was computed. [2023-11-23 20:40:19,967 INFO L899 garLoopResultBuilder]: For program point L193-1(lines 193 199) no Hoare annotation was computed. [2023-11-23 20:40:19,967 INFO L899 garLoopResultBuilder]: For program point L160(lines 160 166) no Hoare annotation was computed. [2023-11-23 20:40:19,967 INFO L899 garLoopResultBuilder]: For program point L156(lines 156 169) no Hoare annotation was computed. [2023-11-23 20:40:19,967 INFO L899 garLoopResultBuilder]: For program point L156-1(lines 148 172) no Hoare annotation was computed. [2023-11-23 20:40:19,968 INFO L899 garLoopResultBuilder]: For program point L954(line 954) no Hoare annotation was computed. [2023-11-23 20:40:19,968 INFO L899 garLoopResultBuilder]: For program point L186-1(lines 185 204) no Hoare annotation was computed. [2023-11-23 20:40:19,968 INFO L899 garLoopResultBuilder]: For program point L248(lines 248 256) no Hoare annotation was computed. [2023-11-23 20:40:19,968 INFO L899 garLoopResultBuilder]: For program point L244(lines 244 261) no Hoare annotation was computed. [2023-11-23 20:40:19,969 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 182 205) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 (and .cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (< |old(~waterLevel~0)| 2) .cse2) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and .cse1 (= ~waterLevel~0 1)) .cse2))) [2023-11-23 20:40:19,969 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 182 205) no Hoare annotation was computed. [2023-11-23 20:40:19,969 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 954) no Hoare annotation was computed. [2023-11-23 20:40:19,970 INFO L895 garLoopResultBuilder]: At program point L415(line 415) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_main_~tmp~9#1| 1)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 (= ~waterLevel~0 1)) (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2 .cse3))) [2023-11-23 20:40:19,970 INFO L899 garLoopResultBuilder]: For program point L444(lines 383 448) no Hoare annotation was computed. [2023-11-23 20:40:19,970 INFO L899 garLoopResultBuilder]: For program point L403(lines 403 409) no Hoare annotation was computed. [2023-11-23 20:40:19,970 INFO L899 garLoopResultBuilder]: For program point L403-1(lines 403 409) no Hoare annotation was computed. [2023-11-23 20:40:19,971 INFO L895 garLoopResultBuilder]: At program point L441(lines 392 442) the Hoare annotation is: false [2023-11-23 20:40:19,971 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-23 20:40:19,971 INFO L899 garLoopResultBuilder]: For program point L413(lines 413 419) no Hoare annotation was computed. [2023-11-23 20:40:19,971 INFO L899 garLoopResultBuilder]: For program point L413-1(lines 413 419) no Hoare annotation was computed. [2023-11-23 20:40:19,971 INFO L895 garLoopResultBuilder]: At program point L438(lines 393 440) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_main_~tmp~9#1| 1)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 (= ~waterLevel~0 1)) (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2 .cse3))) [2023-11-23 20:40:19,972 INFO L895 garLoopResultBuilder]: At program point L405(line 405) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_main_~tmp~9#1| 1)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 (= ~waterLevel~0 1)) (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2 .cse3))) [2023-11-23 20:40:19,972 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-23 20:40:19,972 INFO L899 garLoopResultBuilder]: For program point L901(lines 901 908) no Hoare annotation was computed. [2023-11-23 20:40:19,972 INFO L899 garLoopResultBuilder]: For program point L901-2(lines 901 908) no Hoare annotation was computed. [2023-11-23 20:40:19,973 INFO L895 garLoopResultBuilder]: At program point L431-2(lines 423 436) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_main_~tmp~9#1| 1)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 (= ~waterLevel~0 1)) (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2 .cse3))) [2023-11-23 20:40:19,973 INFO L899 garLoopResultBuilder]: For program point L394(lines 393 440) no Hoare annotation was computed. [2023-11-23 20:40:19,973 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 71 82) no Hoare annotation was computed. [2023-11-23 20:40:19,973 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 71 82) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (< |old(~waterLevel~0)| 2) (= |old(~waterLevel~0)| ~waterLevel~0) .cse1) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 (= ~waterLevel~0 1)))) [2023-11-23 20:40:19,974 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 214 238) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= 0 ~systemActive~0))) (and (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2) (or .cse0 .cse1 (< ~waterLevel~0 2) .cse2))) [2023-11-23 20:40:19,974 INFO L895 garLoopResultBuilder]: At program point L228(line 228) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= 0 ~systemActive~0))) (and (or (not (= ~waterLevel~0 1)) .cse0 .cse1) (or .cse0 (< ~waterLevel~0 2) .cse1))) [2023-11-23 20:40:19,974 INFO L895 garLoopResultBuilder]: At program point L224(line 224) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= 0 ~systemActive~0))) (and (or (not (= ~waterLevel~0 1)) .cse0 .cse1) (or .cse0 (< ~waterLevel~0 2) .cse1))) [2023-11-23 20:40:19,975 INFO L899 garLoopResultBuilder]: For program point L222(lines 222 230) no Hoare annotation was computed. [2023-11-23 20:40:19,975 INFO L899 garLoopResultBuilder]: For program point L218(lines 218 235) no Hoare annotation was computed. [2023-11-23 20:40:19,975 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 214 238) no Hoare annotation was computed. [2023-11-23 20:40:19,975 INFO L895 garLoopResultBuilder]: At program point L233(line 233) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= 0 ~systemActive~0))) (and (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2) (or .cse0 .cse1 (< ~waterLevel~0 2) .cse2))) [2023-11-23 20:40:19,976 INFO L899 garLoopResultBuilder]: For program point L233-1(lines 214 238) no Hoare annotation was computed. [2023-11-23 20:40:19,976 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 298 308) no Hoare annotation was computed. [2023-11-23 20:40:19,976 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 298 308) the Hoare annotation is: true [2023-11-23 20:40:19,979 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-23 20:40:19,981 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 20:40:19,995 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 08:40:19 BoogieIcfgContainer [2023-11-23 20:40:19,996 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 20:40:19,996 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:40:19,997 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:40:19,997 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:40:19,997 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:40:17" (3/4) ... [2023-11-23 20:40:20,000 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 20:40:20,003 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2023-11-23 20:40:20,004 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2023-11-23 20:40:20,004 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2023-11-23 20:40:20,004 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2023-11-23 20:40:20,004 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2023-11-23 20:40:20,005 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2023-11-23 20:40:20,005 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2023-11-23 20:40:20,005 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2023-11-23 20:40:20,013 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 43 nodes and edges [2023-11-23 20:40:20,014 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-23 20:40:20,015 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-23 20:40:20,015 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 20:40:20,016 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 20:40:20,046 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!((\old(pumpRunning) == 0)) || ((pumpRunning == 0) && (\old(waterLevel) == waterLevel))) || (\old(waterLevel) < 2)) || (0 == systemActive)) && (((!((\old(pumpRunning) == 0)) || !((\old(waterLevel) == 1))) || ((pumpRunning == 0) && (waterLevel == 1))) || (0 == systemActive))) [2023-11-23 20:40:20,082 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!((\old(pumpRunning) == 0)) || ((pumpRunning == 0) && (\old(waterLevel) == waterLevel))) || (\old(waterLevel) < 2)) || (0 == systemActive)) && (((!((\old(pumpRunning) == 0)) || !((\old(waterLevel) == 1))) || ((pumpRunning == 0) && (waterLevel == 1))) || (0 == systemActive))) [2023-11-23 20:40:20,157 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dbe86a3-719d-44a7-946b-7e7af193f43d/bin/utaipan-verify-mE87zJ7Ire/witness.graphml [2023-11-23 20:40:20,158 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dbe86a3-719d-44a7-946b-7e7af193f43d/bin/utaipan-verify-mE87zJ7Ire/witness.yml [2023-11-23 20:40:20,158 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:40:20,158 INFO L158 Benchmark]: Toolchain (without parser) took 4540.70ms. Allocated memory is still 153.1MB. Free memory was 121.3MB in the beginning and 121.1MB in the end (delta: 181.6kB). Peak memory consumption was 78.2MB. Max. memory is 16.1GB. [2023-11-23 20:40:20,159 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 117.4MB. Free memory is still 72.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:40:20,159 INFO L158 Benchmark]: CACSL2BoogieTranslator took 586.09ms. Allocated memory is still 153.1MB. Free memory was 121.3MB in the beginning and 101.6MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-23 20:40:20,160 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.31ms. Allocated memory is still 153.1MB. Free memory was 101.6MB in the beginning and 99.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:40:20,160 INFO L158 Benchmark]: Boogie Preprocessor took 34.50ms. Allocated memory is still 153.1MB. Free memory was 99.4MB in the beginning and 98.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:40:20,160 INFO L158 Benchmark]: RCFGBuilder took 723.13ms. Allocated memory is still 153.1MB. Free memory was 97.8MB in the beginning and 72.7MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-23 20:40:20,161 INFO L158 Benchmark]: TraceAbstraction took 2967.76ms. Allocated memory is still 153.1MB. Free memory was 71.9MB in the beginning and 51.2MB in the end (delta: 20.6MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. [2023-11-23 20:40:20,161 INFO L158 Benchmark]: Witness Printer took 161.53ms. Allocated memory is still 153.1MB. Free memory was 51.2MB in the beginning and 121.1MB in the end (delta: -69.9MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. [2023-11-23 20:40:20,163 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 117.4MB. Free memory is still 72.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 586.09ms. Allocated memory is still 153.1MB. Free memory was 121.3MB in the beginning and 101.6MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.31ms. Allocated memory is still 153.1MB. Free memory was 101.6MB in the beginning and 99.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.50ms. Allocated memory is still 153.1MB. Free memory was 99.4MB in the beginning and 98.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 723.13ms. Allocated memory is still 153.1MB. Free memory was 97.8MB in the beginning and 72.7MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 2967.76ms. Allocated memory is still 153.1MB. Free memory was 71.9MB in the beginning and 51.2MB in the end (delta: 20.6MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. * Witness Printer took 161.53ms. Allocated memory is still 153.1MB. Free memory was 51.2MB in the beginning and 121.1MB in the end (delta: -69.9MB). Peak memory consumption was 6.6MB. 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,"Environment.i","") [49] - GenericResultAtLocation [Line: 145]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [145] - GenericResultAtLocation [Line: 173]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [173] - GenericResultAtLocation [Line: 381]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [381] - GenericResultAtLocation [Line: 449]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [449] - GenericResultAtLocation [Line: 815]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [815] - GenericResultAtLocation [Line: 914]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [914] - GenericResultAtLocation [Line: 949]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [949] * 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: 954]: 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 9 procedures, 59 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.9s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 156 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 149 mSDsluCounter, 454 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 240 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 275 IncrementalHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 214 mSDtfsCounter, 275 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=72occurred in iteration=4, InterpolantAutomatonStates: 19, 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, 5 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 23 LocationsWithAnnotation, 150 PreInvPairs, 158 NumberOfFragments, 427 HoareAnnotationTreeSize, 150 FomulaSimplifications, 60 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 23 FomulaSimplificationsInter, 189 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 93 NumberOfCodeBlocks, 93 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 88 ConstructedInterpolants, 0 QuantifiedInterpolants, 276 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 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: 298]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 392]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 827]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 393]: Loop Invariant Derived loop invariant: ((((((pumpRunning == 0) && (tmp == 1)) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel == 1)) || (((((pumpRunning == 0) && (2 <= waterLevel)) && (tmp == 1)) && (1 == systemActive)) && (splverifierCounter == 0))) - InvariantResult [Line: 182]: Loop Invariant Derived loop invariant: ((((!((\old(pumpRunning) == 0)) || ((pumpRunning == 0) && (\old(waterLevel) == waterLevel))) || (\old(waterLevel) < 2)) || (0 == systemActive)) && (((!((\old(pumpRunning) == 0)) || !((\old(waterLevel) == 1))) || ((pumpRunning == 0) && (waterLevel == 1))) || (0 == systemActive))) RESULT: Ultimate proved your program to be correct! [2023-11-23 20:40:20,203 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dbe86a3-719d-44a7-946b-7e7af193f43d/bin/utaipan-verify-mE87zJ7Ire/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