./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e8231b8-babe-4e6c-a7a8-82dc2f31ea48/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e8231b8-babe-4e6c-a7a8-82dc2f31ea48/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e8231b8-babe-4e6c-a7a8-82dc2f31ea48/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e8231b8-babe-4e6c-a7a8-82dc2f31ea48/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e8231b8-babe-4e6c-a7a8-82dc2f31ea48/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e8231b8-babe-4e6c-a7a8-82dc2f31ea48/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2efd89abea8f395c763606eb884193ead53dd4c60c121d08f464917c0ce7119b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:47:13,242 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:47:13,370 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e8231b8-babe-4e6c-a7a8-82dc2f31ea48/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 04:47:13,381 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:47:13,382 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:47:13,425 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:47:13,426 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:47:13,427 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:47:13,428 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:47:13,433 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:47:13,433 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:47:13,434 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:47:13,435 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:47:13,437 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:47:13,437 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:47:13,437 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:47:13,438 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:47:13,438 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:47:13,439 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:47:13,439 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:47:13,440 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:47:13,440 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:47:13,441 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:47:13,442 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:47:13,442 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:47:13,443 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:47:13,443 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:47:13,444 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:47:13,444 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:47:13,444 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:47:13,446 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:47:13,446 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:47:13,446 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:47:13,446 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:47:13,447 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:47:13,447 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:47:13,447 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:47:13,448 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:47:13,448 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:47:13,448 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:47:13,448 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:47:13,449 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:47:13,449 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:47:13,449 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:47:13,450 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:47:13,450 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_1e8231b8-babe-4e6c-a7a8-82dc2f31ea48/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e8231b8-babe-4e6c-a7a8-82dc2f31ea48/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2efd89abea8f395c763606eb884193ead53dd4c60c121d08f464917c0ce7119b [2023-11-19 04:47:13,751 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:47:13,777 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:47:13,782 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:47:13,784 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:47:13,784 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:47:13,787 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e8231b8-babe-4e6c-a7a8-82dc2f31ea48/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c [2023-11-19 04:47:17,129 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:47:17,419 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:47:17,420 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e8231b8-babe-4e6c-a7a8-82dc2f31ea48/sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c [2023-11-19 04:47:17,440 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e8231b8-babe-4e6c-a7a8-82dc2f31ea48/bin/utaipan-verify-t7M7D8N6sZ/data/316f82835/2c5702268a314488a088457cdb2c135d/FLAG1375e8da5 [2023-11-19 04:47:17,460 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e8231b8-babe-4e6c-a7a8-82dc2f31ea48/bin/utaipan-verify-t7M7D8N6sZ/data/316f82835/2c5702268a314488a088457cdb2c135d [2023-11-19 04:47:17,463 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:47:17,466 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:47:17,467 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:47:17,467 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:47:17,474 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:47:17,474 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:47:17" (1/1) ... [2023-11-19 04:47:17,476 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e009441 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:17, skipping insertion in model container [2023-11-19 04:47:17,476 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:47:17" (1/1) ... [2023-11-19 04:47:17,549 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:47:17,934 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_1e8231b8-babe-4e6c-a7a8-82dc2f31ea48/sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c[16122,16135] [2023-11-19 04:47:17,964 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:47:17,988 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:47:17,997 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [49] [2023-11-19 04:47:17,999 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [124] [2023-11-19 04:47:17,999 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [372] [2023-11-19 04:47:18,000 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [408] [2023-11-19 04:47:18,000 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [774] [2023-11-19 04:47:18,000 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [783] [2023-11-19 04:47:18,000 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [821] [2023-11-19 04:47:18,001 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [924] [2023-11-19 04:47:18,093 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_1e8231b8-babe-4e6c-a7a8-82dc2f31ea48/sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c[16122,16135] [2023-11-19 04:47:18,113 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:47:18,133 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:47:18,134 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:18 WrapperNode [2023-11-19 04:47:18,134 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:47:18,135 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:47:18,135 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:47:18,135 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:47:18,143 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:18" (1/1) ... [2023-11-19 04:47:18,165 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:18" (1/1) ... [2023-11-19 04:47:18,210 INFO L138 Inliner]: procedures = 58, calls = 104, calls flagged for inlining = 26, calls inlined = 23, statements flattened = 233 [2023-11-19 04:47:18,211 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:47:18,211 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:47:18,212 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:47:18,212 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:47:18,221 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:18" (1/1) ... [2023-11-19 04:47:18,222 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:18" (1/1) ... [2023-11-19 04:47:18,225 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:18" (1/1) ... [2023-11-19 04:47:18,225 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:18" (1/1) ... [2023-11-19 04:47:18,245 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:18" (1/1) ... [2023-11-19 04:47:18,250 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:18" (1/1) ... [2023-11-19 04:47:18,252 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:18" (1/1) ... [2023-11-19 04:47:18,254 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:18" (1/1) ... [2023-11-19 04:47:18,257 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:47:18,257 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:47:18,258 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:47:18,258 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:47:18,259 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:18" (1/1) ... [2023-11-19 04:47:18,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:47:18,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e8231b8-babe-4e6c-a7a8-82dc2f31ea48/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:47:18,287 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e8231b8-babe-4e6c-a7a8-82dc2f31ea48/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:47:18,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e8231b8-babe-4e6c-a7a8-82dc2f31ea48/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:47:18,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:47:18,336 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-11-19 04:47:18,336 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-11-19 04:47:18,336 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-11-19 04:47:18,337 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-11-19 04:47:18,337 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-19 04:47:18,337 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-19 04:47:18,337 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-19 04:47:18,338 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-19 04:47:18,338 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-11-19 04:47:18,338 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-11-19 04:47:18,340 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-19 04:47:18,340 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-19 04:47:18,340 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-11-19 04:47:18,341 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-11-19 04:47:18,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:47:18,342 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-19 04:47:18,342 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-19 04:47:18,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:47:18,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:47:18,463 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:47:18,465 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:47:18,772 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:47:18,936 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:47:18,936 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 04:47:18,953 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:47:18 BoogieIcfgContainer [2023-11-19 04:47:18,953 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:47:18,956 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:47:18,957 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:47:18,960 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:47:18,964 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:47:17" (1/3) ... [2023-11-19 04:47:18,965 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cb73785 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:47:18, skipping insertion in model container [2023-11-19 04:47:18,970 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:18" (2/3) ... [2023-11-19 04:47:18,970 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cb73785 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:47:18, skipping insertion in model container [2023-11-19 04:47:18,971 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:47:18" (3/3) ... [2023-11-19 04:47:18,972 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product60.cil.c [2023-11-19 04:47:18,992 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:47:18,992 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:47:19,053 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:47:19,060 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;@1359b5a2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:47:19,061 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:47:19,067 INFO L276 IsEmpty]: Start isEmpty. Operand has 66 states, 42 states have (on average 1.4523809523809523) internal successors, (61), 51 states have internal predecessors, (61), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-19 04:47:19,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-19 04:47:19,077 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:47:19,078 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:47:19,078 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:47:19,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:47:19,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1863648825, now seen corresponding path program 1 times [2023-11-19 04:47:19,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:47:19,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705476173] [2023-11-19 04:47:19,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:47:19,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:47:19,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:47:19,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:47:19,319 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:47:19,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705476173] [2023-11-19 04:47:19,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705476173] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:47:19,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:47:19,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:47:19,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687232854] [2023-11-19 04:47:19,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:47:19,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 04:47:19,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:47:19,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 04:47:19,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:47:19,376 INFO L87 Difference]: Start difference. First operand has 66 states, 42 states have (on average 1.4523809523809523) internal successors, (61), 51 states have internal predecessors, (61), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 04:47:19,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:47:19,491 INFO L93 Difference]: Finished difference Result 130 states and 179 transitions. [2023-11-19 04:47:19,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 04:47:19,496 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2023-11-19 04:47:19,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:47:19,507 INFO L225 Difference]: With dead ends: 130 [2023-11-19 04:47:19,507 INFO L226 Difference]: Without dead ends: 61 [2023-11-19 04:47:19,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:47:19,517 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:47:19,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 67 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:47:19,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2023-11-19 04:47:19,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2023-11-19 04:47:19,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 39 states have (on average 1.358974358974359) internal successors, (53), 47 states have internal predecessors, (53), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-19 04:47:19,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 80 transitions. [2023-11-19 04:47:19,569 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 80 transitions. Word has length 17 [2023-11-19 04:47:19,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:47:19,570 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 80 transitions. [2023-11-19 04:47:19,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 04:47:19,570 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 80 transitions. [2023-11-19 04:47:19,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-19 04:47:19,573 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:47:19,573 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:47:19,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:47:19,574 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:47:19,575 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:47:19,576 INFO L85 PathProgramCache]: Analyzing trace with hash 567575331, now seen corresponding path program 1 times [2023-11-19 04:47:19,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:47:19,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059623142] [2023-11-19 04:47:19,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:47:19,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:47:19,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:47:19,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:47:19,719 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:47:19,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059623142] [2023-11-19 04:47:19,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059623142] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:47:19,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:47:19,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:47:19,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142629017] [2023-11-19 04:47:19,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:47:19,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:47:19,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:47:19,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:47:19,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:47:19,728 INFO L87 Difference]: Start difference. First operand 61 states and 80 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 04:47:19,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:47:19,822 INFO L93 Difference]: Finished difference Result 94 states and 122 transitions. [2023-11-19 04:47:19,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:47:19,827 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2023-11-19 04:47:19,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:47:19,829 INFO L225 Difference]: With dead ends: 94 [2023-11-19 04:47:19,829 INFO L226 Difference]: Without dead ends: 53 [2023-11-19 04:47:19,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:47:19,832 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 14 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:47:19,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 90 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:47:19,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2023-11-19 04:47:19,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2023-11-19 04:47:19,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 34 states have (on average 1.3823529411764706) internal successors, (47), 42 states have internal predecessors, (47), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 8 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-19 04:47:19,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 69 transitions. [2023-11-19 04:47:19,844 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 69 transitions. Word has length 18 [2023-11-19 04:47:19,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:47:19,846 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 69 transitions. [2023-11-19 04:47:19,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 04:47:19,846 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 69 transitions. [2023-11-19 04:47:19,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-19 04:47:19,850 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:47:19,850 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:47:19,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 04:47:19,851 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:47:19,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:47:19,853 INFO L85 PathProgramCache]: Analyzing trace with hash -112889653, now seen corresponding path program 1 times [2023-11-19 04:47:19,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:47:19,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337699275] [2023-11-19 04:47:19,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:47:19,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:47:19,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:47:20,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:47:20,001 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:47:20,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337699275] [2023-11-19 04:47:20,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337699275] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:47:20,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:47:20,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:47:20,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847609861] [2023-11-19 04:47:20,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:47:20,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:47:20,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:47:20,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:47:20,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:47:20,006 INFO L87 Difference]: Start difference. First operand 53 states and 69 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 04:47:20,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:47:20,128 INFO L93 Difference]: Finished difference Result 155 states and 204 transitions. [2023-11-19 04:47:20,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:47:20,129 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2023-11-19 04:47:20,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:47:20,134 INFO L225 Difference]: With dead ends: 155 [2023-11-19 04:47:20,134 INFO L226 Difference]: Without dead ends: 104 [2023-11-19 04:47:20,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:47:20,143 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 63 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:47:20,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 115 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:47:20,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2023-11-19 04:47:20,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 101. [2023-11-19 04:47:20,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 64 states have (on average 1.390625) internal successors, (89), 79 states have internal predecessors, (89), 22 states have call successors, (22), 14 states have call predecessors, (22), 14 states have return successors, (22), 15 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-19 04:47:20,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 133 transitions. [2023-11-19 04:47:20,171 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 133 transitions. Word has length 21 [2023-11-19 04:47:20,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:47:20,172 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 133 transitions. [2023-11-19 04:47:20,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 04:47:20,172 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 133 transitions. [2023-11-19 04:47:20,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-19 04:47:20,175 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:47:20,175 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:47:20,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 04:47:20,175 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:47:20,176 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:47:20,176 INFO L85 PathProgramCache]: Analyzing trace with hash -2067982303, now seen corresponding path program 1 times [2023-11-19 04:47:20,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:47:20,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708438413] [2023-11-19 04:47:20,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:47:20,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:47:20,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:47:20,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:47:20,512 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:47:20,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708438413] [2023-11-19 04:47:20,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708438413] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:47:20,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:47:20,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 04:47:20,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630638630] [2023-11-19 04:47:20,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:47:20,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:47:20,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:47:20,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:47:20,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:47:20,516 INFO L87 Difference]: Start difference. First operand 101 states and 133 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 04:47:20,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:47:20,698 INFO L93 Difference]: Finished difference Result 345 states and 456 transitions. [2023-11-19 04:47:20,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 04:47:20,699 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2023-11-19 04:47:20,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:47:20,702 INFO L225 Difference]: With dead ends: 345 [2023-11-19 04:47:20,702 INFO L226 Difference]: Without dead ends: 246 [2023-11-19 04:47:20,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-19 04:47:20,705 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 67 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:47:20,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 220 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:47:20,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2023-11-19 04:47:20,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 225. [2023-11-19 04:47:20,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 152 states have (on average 1.3223684210526316) internal successors, (201), 172 states have internal predecessors, (201), 39 states have call successors, (39), 29 states have call predecessors, (39), 33 states have return successors, (43), 36 states have call predecessors, (43), 39 states have call successors, (43) [2023-11-19 04:47:20,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 283 transitions. [2023-11-19 04:47:20,747 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 283 transitions. Word has length 24 [2023-11-19 04:47:20,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:47:20,748 INFO L495 AbstractCegarLoop]: Abstraction has 225 states and 283 transitions. [2023-11-19 04:47:20,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 04:47:20,748 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 283 transitions. [2023-11-19 04:47:20,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-19 04:47:20,751 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:47:20,751 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:47:20,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 04:47:20,751 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:47:20,752 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:47:20,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1130089870, now seen corresponding path program 1 times [2023-11-19 04:47:20,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:47:20,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729536540] [2023-11-19 04:47:20,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:47:20,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:47:20,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:47:20,770 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:47:20,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:47:20,810 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 04:47:20,811 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 04:47:20,812 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 04:47:20,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 04:47:20,817 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-19 04:47:20,820 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 04:47:20,844 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret22 could not be translated [2023-11-19 04:47:20,861 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:47:20 BoogieIcfgContainer [2023-11-19 04:47:20,862 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 04:47:20,863 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:47:20,864 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:47:20,864 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:47:20,865 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:47:18" (3/4) ... [2023-11-19 04:47:20,865 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-19 04:47:20,880 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret22 could not be translated [2023-11-19 04:47:20,934 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e8231b8-babe-4e6c-a7a8-82dc2f31ea48/bin/utaipan-verify-t7M7D8N6sZ/witness.graphml [2023-11-19 04:47:20,934 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:47:20,935 INFO L158 Benchmark]: Toolchain (without parser) took 3469.74ms. Allocated memory was 136.3MB in the beginning and 192.9MB in the end (delta: 56.6MB). Free memory was 100.2MB in the beginning and 52.0MB in the end (delta: 48.2MB). Peak memory consumption was 106.4MB. Max. memory is 16.1GB. [2023-11-19 04:47:20,935 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 136.3MB. Free memory is still 84.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:47:20,936 INFO L158 Benchmark]: CACSL2BoogieTranslator took 667.12ms. Allocated memory is still 136.3MB. Free memory was 99.9MB in the beginning and 80.1MB in the end (delta: 19.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-19 04:47:20,943 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.90ms. Allocated memory is still 136.3MB. Free memory was 80.1MB in the beginning and 77.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:47:20,944 INFO L158 Benchmark]: Boogie Preprocessor took 45.42ms. Allocated memory is still 136.3MB. Free memory was 77.8MB in the beginning and 76.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:47:20,944 INFO L158 Benchmark]: RCFGBuilder took 695.99ms. Allocated memory was 136.3MB in the beginning and 192.9MB in the end (delta: 56.6MB). Free memory was 76.0MB in the beginning and 156.9MB in the end (delta: -80.9MB). Peak memory consumption was 30.9MB. Max. memory is 16.1GB. [2023-11-19 04:47:20,945 INFO L158 Benchmark]: TraceAbstraction took 1905.71ms. Allocated memory is still 192.9MB. Free memory was 156.9MB in the beginning and 55.2MB in the end (delta: 101.7MB). Peak memory consumption was 102.8MB. Max. memory is 16.1GB. [2023-11-19 04:47:20,945 INFO L158 Benchmark]: Witness Printer took 71.91ms. Allocated memory is still 192.9MB. Free memory was 55.2MB in the beginning and 52.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:47:20,948 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 136.3MB. Free memory is still 84.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 667.12ms. Allocated memory is still 136.3MB. Free memory was 99.9MB in the beginning and 80.1MB in the end (delta: 19.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.90ms. Allocated memory is still 136.3MB. Free memory was 80.1MB in the beginning and 77.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.42ms. Allocated memory is still 136.3MB. Free memory was 77.8MB in the beginning and 76.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 695.99ms. Allocated memory was 136.3MB in the beginning and 192.9MB in the end (delta: 56.6MB). Free memory was 76.0MB in the beginning and 156.9MB in the end (delta: -80.9MB). Peak memory consumption was 30.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1905.71ms. Allocated memory is still 192.9MB. Free memory was 156.9MB in the beginning and 55.2MB in the end (delta: 101.7MB). Peak memory consumption was 102.8MB. Max. memory is 16.1GB. * Witness Printer took 71.91ms. Allocated memory is still 192.9MB. Free memory was 55.2MB in the beginning and 52.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. 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,"scenario.i","") [49] - GenericResultAtLocation [Line: 124]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [124] - GenericResultAtLocation [Line: 372]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [372] - GenericResultAtLocation [Line: 408]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [408] - GenericResultAtLocation [Line: 774]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [774] - GenericResultAtLocation [Line: 783]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [783] - GenericResultAtLocation [Line: 821]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [821] - GenericResultAtLocation [Line: 924]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [924] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret22 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret22 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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: 779]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L134] int pumpRunning = 0; [L135] int systemActive = 1; [L578] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L822] int waterLevel = 1; [L823] int methaneLevelCritical = 0; [L925] int cleanupTimeShifts = 4; [L998] int retValue_acc ; [L999] int tmp ; [L1003] FCALL select_helpers() [L1004] FCALL select_features() [L1005] CALL, EXPR valid_product() [L813] int retValue_acc ; [L816] retValue_acc = 1 [L817] return (retValue_acc); [L1005] RET, EXPR valid_product() [L1005] tmp = valid_product() [L1007] COND TRUE \read(tmp) [L1009] FCALL setup() [L1010] CALL runTest() [L992] CALL test() [L57] int splverifierCounter ; [L58] int tmp ; [L59] int tmp___0 ; [L60] int tmp___1 ; [L61] int tmp___2 ; [L64] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L66] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L68] COND TRUE splverifierCounter < 4 [L74] tmp = __VERIFIER_nondet_int() [L76] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L78] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L840] COND TRUE waterLevel < 2 [L841] waterLevel = waterLevel + 1 [L78] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L84] tmp___0 = __VERIFIER_nondet_int() [L86] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L94] tmp___2 = __VERIFIER_nondet_int() [L96] COND FALSE !(\read(tmp___2)) [L102] tmp___1 = __VERIFIER_nondet_int() [L104] COND TRUE \read(tmp___1) [L106] CALL stopSystem() [L353] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L360] systemActive = 0 [L106] RET stopSystem() [L113] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L142] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L149] COND FALSE !(\read(systemActive)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L157] CALL __utac_acc__Specification3_spec__1() [L376] int tmp ; [L377] int tmp___0 ; [L378] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L382] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L861] int retValue_acc ; [L864] retValue_acc = methaneLevelCritical [L865] return (retValue_acc); [L382] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L382] tmp = isMethaneLevelCritical() [L384] COND FALSE !(\read(tmp)) [L388] CALL, EXPR getWaterLevel() [L893] int retValue_acc ; [L896] retValue_acc = waterLevel [L897] return (retValue_acc); [L388] RET, EXPR getWaterLevel() [L388] tmp___0 = getWaterLevel() [L390] COND TRUE tmp___0 == 2 [L392] CALL, EXPR isPumpRunning() [L267] int retValue_acc ; [L270] retValue_acc = pumpRunning [L271] return (retValue_acc); [L392] RET, EXPR isPumpRunning() [L392] tmp___1 = isPumpRunning() [L394] COND FALSE !(\read(tmp___1)) [L398] CALL __automaton_fail() [L779] reach_error() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 66 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 148 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 144 mSDsluCounter, 492 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 255 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 179 IncrementalHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 237 mSDtfsCounter, 179 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=225occurred in iteration=4, InterpolantAutomatonStates: 14, 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, 4 MinimizatonAttempts, 24 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 107 NumberOfCodeBlocks, 107 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 76 ConstructedInterpolants, 0 QuantifiedInterpolants, 176 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 RESULT: Ultimate proved your program to be incorrect! [2023-11-19 04:47:21,005 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e8231b8-babe-4e6c-a7a8-82dc2f31ea48/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE