./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_5f5de9d6-5342-40ae-8a42-a20a75fb08ac/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5de9d6-5342-40ae-8a42-a20a75fb08ac/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5de9d6-5342-40ae-8a42-a20a75fb08ac/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5de9d6-5342-40ae-8a42-a20a75fb08ac/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5de9d6-5342-40ae-8a42-a20a75fb08ac/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5de9d6-5342-40ae-8a42-a20a75fb08ac/bin/uautomizer-verify-BQ2R08f2Ya --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 40ec21bd2775f54496a6d376e4b1b562b086a4c18151452e7b83204c384db515 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 06:42:28,885 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 06:42:28,951 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5de9d6-5342-40ae-8a42-a20a75fb08ac/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 06:42:28,956 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 06:42:28,956 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 06:42:28,980 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 06:42:28,981 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 06:42:28,982 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 06:42:28,982 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 06:42:28,983 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 06:42:28,984 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 06:42:28,984 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 06:42:28,985 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 06:42:28,985 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 06:42:28,986 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 06:42:28,986 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 06:42:28,987 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 06:42:28,988 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 06:42:28,988 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 06:42:28,988 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 06:42:28,989 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 06:42:28,990 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 06:42:28,990 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 06:42:28,991 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 06:42:28,991 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 06:42:28,991 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 06:42:28,992 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 06:42:28,992 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 06:42:28,993 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 06:42:28,993 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 06:42:28,993 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 06:42:28,994 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:42:28,994 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 06:42:28,994 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 06:42:28,995 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 06:42:28,995 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 06:42:28,995 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 06:42:28,995 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 06:42:28,995 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 06:42:28,996 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 06:42:28,996 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 06:42:28,996 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 06:42:28,996 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_5f5de9d6-5342-40ae-8a42-a20a75fb08ac/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5de9d6-5342-40ae-8a42-a20a75fb08ac/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 40ec21bd2775f54496a6d376e4b1b562b086a4c18151452e7b83204c384db515 [2023-11-29 06:42:29,211 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 06:42:29,236 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 06:42:29,238 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 06:42:29,240 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 06:42:29,240 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 06:42:29,241 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5de9d6-5342-40ae-8a42-a20a75fb08ac/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c [2023-11-29 06:42:31,972 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 06:42:32,209 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 06:42:32,210 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5de9d6-5342-40ae-8a42-a20a75fb08ac/sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c [2023-11-29 06:42:32,223 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5de9d6-5342-40ae-8a42-a20a75fb08ac/bin/uautomizer-verify-BQ2R08f2Ya/data/9a6b451d9/a16e63212a3142f6b1f8b57321d84a18/FLAG99501ab7c [2023-11-29 06:42:32,238 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5de9d6-5342-40ae-8a42-a20a75fb08ac/bin/uautomizer-verify-BQ2R08f2Ya/data/9a6b451d9/a16e63212a3142f6b1f8b57321d84a18 [2023-11-29 06:42:32,240 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 06:42:32,242 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 06:42:32,243 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 06:42:32,243 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 06:42:32,248 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 06:42:32,249 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:42:32" (1/1) ... [2023-11-29 06:42:32,250 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8a247c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:42:32, skipping insertion in model container [2023-11-29 06:42:32,250 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:42:32" (1/1) ... [2023-11-29 06:42:32,298 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 06:42:32,476 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_5f5de9d6-5342-40ae-8a42-a20a75fb08ac/sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c[5279,5292] [2023-11-29 06:42:32,547 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:42:32,557 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 06:42:32,565 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [49] [2023-11-29 06:42:32,566 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [153] [2023-11-29 06:42:32,567 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [191] [2023-11-29 06:42:32,567 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [288] [2023-11-29 06:42:32,567 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [323] [2023-11-29 06:42:32,567 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [332] [2023-11-29 06:42:32,567 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [698] [2023-11-29 06:42:32,568 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [895] [2023-11-29 06:42:32,583 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_5f5de9d6-5342-40ae-8a42-a20a75fb08ac/sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c[5279,5292] [2023-11-29 06:42:32,621 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:42:32,640 INFO L206 MainTranslator]: Completed translation [2023-11-29 06:42:32,640 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:42:32 WrapperNode [2023-11-29 06:42:32,640 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 06:42:32,641 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 06:42:32,642 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 06:42:32,642 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 06:42:32,647 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:42:32" (1/1) ... [2023-11-29 06:42:32,660 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:42:32" (1/1) ... [2023-11-29 06:42:32,685 INFO L138 Inliner]: procedures = 55, calls = 99, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 203 [2023-11-29 06:42:32,685 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 06:42:32,686 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 06:42:32,686 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 06:42:32,686 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 06:42:32,696 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:42:32" (1/1) ... [2023-11-29 06:42:32,696 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:42:32" (1/1) ... [2023-11-29 06:42:32,698 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:42:32" (1/1) ... [2023-11-29 06:42:32,713 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 06:42:32,713 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:42:32" (1/1) ... [2023-11-29 06:42:32,713 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:42:32" (1/1) ... [2023-11-29 06:42:32,719 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:42:32" (1/1) ... [2023-11-29 06:42:32,724 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:42:32" (1/1) ... [2023-11-29 06:42:32,725 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:42:32" (1/1) ... [2023-11-29 06:42:32,727 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:42:32" (1/1) ... [2023-11-29 06:42:32,730 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 06:42:32,731 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 06:42:32,731 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 06:42:32,731 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 06:42:32,732 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:42:32" (1/1) ... [2023-11-29 06:42:32,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:42:32,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5de9d6-5342-40ae-8a42-a20a75fb08ac/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:42:32,758 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5de9d6-5342-40ae-8a42-a20a75fb08ac/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 06:42:32,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5de9d6-5342-40ae-8a42-a20a75fb08ac/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 06:42:32,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 06:42:32,789 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-11-29 06:42:32,789 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-11-29 06:42:32,789 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-11-29 06:42:32,789 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-11-29 06:42:32,790 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-29 06:42:32,790 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-29 06:42:32,790 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-29 06:42:32,790 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-29 06:42:32,790 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-29 06:42:32,790 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-29 06:42:32,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 06:42:32,791 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-29 06:42:32,791 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-29 06:42:32,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 06:42:32,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 06:42:32,868 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 06:42:32,870 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 06:42:33,096 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 06:42:33,156 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 06:42:33,156 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-29 06:42:33,157 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:42:33 BoogieIcfgContainer [2023-11-29 06:42:33,157 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 06:42:33,160 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 06:42:33,160 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 06:42:33,164 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 06:42:33,164 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:42:32" (1/3) ... [2023-11-29 06:42:33,165 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e3f68b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:42:33, skipping insertion in model container [2023-11-29 06:42:33,165 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:42:32" (2/3) ... [2023-11-29 06:42:33,165 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e3f68b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:42:33, skipping insertion in model container [2023-11-29 06:42:33,166 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:42:33" (3/3) ... [2023-11-29 06:42:33,167 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product44.cil.c [2023-11-29 06:42:33,187 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 06:42:33,188 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 06:42:33,231 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 06:42:33,237 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=PETRI_NET, 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;@59fdb863, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 06:42:33,237 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 06:42:33,240 INFO L276 IsEmpty]: Start isEmpty. Operand has 65 states, 47 states have (on average 1.553191489361702) internal successors, (73), 53 states have internal predecessors, (73), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 06:42:33,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-29 06:42:33,249 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:42:33,250 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:42:33,251 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:42:33,256 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:42:33,256 INFO L85 PathProgramCache]: Analyzing trace with hash -623979305, now seen corresponding path program 1 times [2023-11-29 06:42:33,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:42:33,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459404245] [2023-11-29 06:42:33,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:42:33,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:42:33,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:33,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 06:42:33,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:33,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:42:33,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:42:33,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459404245] [2023-11-29 06:42:33,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459404245] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:42:33,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:42:33,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:42:33,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381366166] [2023-11-29 06:42:33,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:42:33,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 06:42:33,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:42:33,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 06:42:33,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 06:42:33,487 INFO L87 Difference]: Start difference. First operand has 65 states, 47 states have (on average 1.553191489361702) internal successors, (73), 53 states have internal predecessors, (73), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 06:42:33,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:42:33,546 INFO L93 Difference]: Finished difference Result 128 states and 187 transitions. [2023-11-29 06:42:33,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 06:42:33,576 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 [2023-11-29 06:42:33,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:42:33,586 INFO L225 Difference]: With dead ends: 128 [2023-11-29 06:42:33,586 INFO L226 Difference]: Without dead ends: 60 [2023-11-29 06:42:33,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 06:42:33,593 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:42:33,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 72 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:42:33,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2023-11-29 06:42:33,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2023-11-29 06:42:33,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 44 states have (on average 1.4318181818181819) internal successors, (63), 49 states have internal predecessors, (63), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 06:42:33,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 82 transitions. [2023-11-29 06:42:33,638 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 82 transitions. Word has length 17 [2023-11-29 06:42:33,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:42:33,639 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 82 transitions. [2023-11-29 06:42:33,639 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) [2023-11-29 06:42:33,639 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 82 transitions. [2023-11-29 06:42:33,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-29 06:42:33,642 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:42:33,642 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:42:33,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 06:42:33,642 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:42:33,643 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:42:33,643 INFO L85 PathProgramCache]: Analyzing trace with hash 256527581, now seen corresponding path program 1 times [2023-11-29 06:42:33,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:42:33,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300492383] [2023-11-29 06:42:33,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:42:33,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:42:33,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:33,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 06:42:33,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:33,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:42:33,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:42:33,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300492383] [2023-11-29 06:42:33,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300492383] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:42:33,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:42:33,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:42:33,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851039469] [2023-11-29 06:42:33,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:42:33,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:42:33,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:42:33,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:42:33,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:42:33,747 INFO L87 Difference]: Start difference. First operand 60 states and 82 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) [2023-11-29 06:42:33,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:42:33,788 INFO L93 Difference]: Finished difference Result 91 states and 124 transitions. [2023-11-29 06:42:33,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:42:33,789 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 [2023-11-29 06:42:33,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:42:33,790 INFO L225 Difference]: With dead ends: 91 [2023-11-29 06:42:33,790 INFO L226 Difference]: Without dead ends: 52 [2023-11-29 06:42:33,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:42:33,793 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 14 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:42:33,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 102 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:42:33,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2023-11-29 06:42:33,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2023-11-29 06:42:33,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 39 states have (on average 1.4615384615384615) internal successors, (57), 44 states have internal predecessors, (57), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 06:42:33,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 71 transitions. [2023-11-29 06:42:33,803 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 71 transitions. Word has length 18 [2023-11-29 06:42:33,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:42:33,804 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 71 transitions. [2023-11-29 06:42:33,804 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) [2023-11-29 06:42:33,804 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 71 transitions. [2023-11-29 06:42:33,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-29 06:42:33,805 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:42:33,806 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] [2023-11-29 06:42:33,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 06:42:33,806 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:42:33,807 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:42:33,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1094506609, now seen corresponding path program 1 times [2023-11-29 06:42:33,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:42:33,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939405662] [2023-11-29 06:42:33,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:42:33,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:42:33,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:33,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 06:42:33,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:33,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:42:33,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:42:33,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939405662] [2023-11-29 06:42:33,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939405662] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:42:33,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:42:33,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:42:33,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278491784] [2023-11-29 06:42:33,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:42:33,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:42:33,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:42:33,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:42:33,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:42:33,918 INFO L87 Difference]: Start difference. First operand 52 states and 71 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 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) [2023-11-29 06:42:34,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:42:34,004 INFO L93 Difference]: Finished difference Result 137 states and 189 transitions. [2023-11-29 06:42:34,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:42:34,005 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 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 [2023-11-29 06:42:34,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:42:34,007 INFO L225 Difference]: With dead ends: 137 [2023-11-29 06:42:34,007 INFO L226 Difference]: Without dead ends: 87 [2023-11-29 06:42:34,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:42:34,009 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 95 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:42:34,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 153 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:42:34,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2023-11-29 06:42:34,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 83. [2023-11-29 06:42:34,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 62 states have (on average 1.467741935483871) internal successors, (91), 69 states have internal predecessors, (91), 11 states have call successors, (11), 9 states have call predecessors, (11), 9 states have return successors, (12), 10 states have call predecessors, (12), 11 states have call successors, (12) [2023-11-29 06:42:34,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 114 transitions. [2023-11-29 06:42:34,027 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 114 transitions. Word has length 21 [2023-11-29 06:42:34,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:42:34,027 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 114 transitions. [2023-11-29 06:42:34,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 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) [2023-11-29 06:42:34,028 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 114 transitions. [2023-11-29 06:42:34,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-29 06:42:34,029 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:42:34,029 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] [2023-11-29 06:42:34,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 06:42:34,030 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:42:34,030 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:42:34,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1136029359, now seen corresponding path program 1 times [2023-11-29 06:42:34,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:42:34,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797420756] [2023-11-29 06:42:34,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:42:34,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:42:34,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:34,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-29 06:42:34,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:34,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:42:34,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:42:34,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797420756] [2023-11-29 06:42:34,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797420756] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:42:34,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:42:34,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:42:34,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966184804] [2023-11-29 06:42:34,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:42:34,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:42:34,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:42:34,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:42:34,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:42:34,158 INFO L87 Difference]: Start difference. First operand 83 states and 114 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 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) [2023-11-29 06:42:34,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:42:34,249 INFO L93 Difference]: Finished difference Result 245 states and 351 transitions. [2023-11-29 06:42:34,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:42:34,249 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 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 [2023-11-29 06:42:34,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:42:34,252 INFO L225 Difference]: With dead ends: 245 [2023-11-29 06:42:34,252 INFO L226 Difference]: Without dead ends: 164 [2023-11-29 06:42:34,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:42:34,255 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 49 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 153 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 [2023-11-29 06:42:34,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 153 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:42:34,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2023-11-29 06:42:34,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 158. [2023-11-29 06:42:34,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 117 states have (on average 1.4444444444444444) internal successors, (169), 130 states have internal predecessors, (169), 22 states have call successors, (22), 18 states have call predecessors, (22), 18 states have return successors, (32), 20 states have call predecessors, (32), 22 states have call successors, (32) [2023-11-29 06:42:34,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 223 transitions. [2023-11-29 06:42:34,283 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 223 transitions. Word has length 24 [2023-11-29 06:42:34,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:42:34,283 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 223 transitions. [2023-11-29 06:42:34,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 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) [2023-11-29 06:42:34,284 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 223 transitions. [2023-11-29 06:42:34,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-29 06:42:34,287 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:42:34,287 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] [2023-11-29 06:42:34,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 06:42:34,287 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:42:34,288 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:42:34,288 INFO L85 PathProgramCache]: Analyzing trace with hash -771755017, now seen corresponding path program 1 times [2023-11-29 06:42:34,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:42:34,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511824712] [2023-11-29 06:42:34,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:42:34,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:42:34,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:42:34,306 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:42:34,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:42:34,340 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 06:42:34,340 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 06:42:34,341 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 06:42:34,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 06:42:34,346 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-29 06:42:34,349 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 06:42:34,372 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret5 could not be translated [2023-11-29 06:42:34,385 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 06:42:34 BoogieIcfgContainer [2023-11-29 06:42:34,385 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 06:42:34,385 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 06:42:34,385 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 06:42:34,386 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 06:42:34,386 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:42:33" (3/4) ... [2023-11-29 06:42:34,387 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-29 06:42:34,398 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret5 could not be translated [2023-11-29 06:42:34,440 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5de9d6-5342-40ae-8a42-a20a75fb08ac/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 06:42:34,440 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 06:42:34,441 INFO L158 Benchmark]: Toolchain (without parser) took 2199.48ms. Allocated memory was 182.5MB in the beginning and 230.7MB in the end (delta: 48.2MB). Free memory was 143.8MB in the beginning and 132.2MB in the end (delta: 11.6MB). Peak memory consumption was 62.3MB. Max. memory is 16.1GB. [2023-11-29 06:42:34,441 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 182.5MB. Free memory is still 155.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 06:42:34,442 INFO L158 Benchmark]: CACSL2BoogieTranslator took 397.80ms. Allocated memory is still 182.5MB. Free memory was 143.8MB in the beginning and 124.4MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-29 06:42:34,442 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.85ms. Allocated memory is still 182.5MB. Free memory was 124.4MB in the beginning and 122.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 06:42:34,442 INFO L158 Benchmark]: Boogie Preprocessor took 44.01ms. Allocated memory is still 182.5MB. Free memory was 122.3MB in the beginning and 120.0MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 06:42:34,443 INFO L158 Benchmark]: RCFGBuilder took 426.45ms. Allocated memory is still 182.5MB. Free memory was 119.6MB in the beginning and 98.6MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-29 06:42:34,443 INFO L158 Benchmark]: TraceAbstraction took 1224.61ms. Allocated memory was 182.5MB in the beginning and 230.7MB in the end (delta: 48.2MB). Free memory was 97.7MB in the beginning and 136.4MB in the end (delta: -38.7MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. [2023-11-29 06:42:34,444 INFO L158 Benchmark]: Witness Printer took 55.10ms. Allocated memory is still 230.7MB. Free memory was 135.3MB in the beginning and 132.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 06:42:34,446 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 182.5MB. Free memory is still 155.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 397.80ms. Allocated memory is still 182.5MB. Free memory was 143.8MB in the beginning and 124.4MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.85ms. Allocated memory is still 182.5MB. Free memory was 124.4MB in the beginning and 122.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.01ms. Allocated memory is still 182.5MB. Free memory was 122.3MB in the beginning and 120.0MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 426.45ms. Allocated memory is still 182.5MB. Free memory was 119.6MB in the beginning and 98.6MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1224.61ms. Allocated memory was 182.5MB in the beginning and 230.7MB in the end (delta: 48.2MB). Free memory was 97.7MB in the beginning and 136.4MB in the end (delta: -38.7MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. * Witness Printer took 55.10ms. Allocated memory is still 230.7MB. Free memory was 135.3MB in the beginning and 132.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [49] - GenericResultAtLocation [Line: 153]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [153] - GenericResultAtLocation [Line: 191]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [191] - GenericResultAtLocation [Line: 288]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [288] - GenericResultAtLocation [Line: 323]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [323] - GenericResultAtLocation [Line: 332]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [332] - GenericResultAtLocation [Line: 698]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [698] - GenericResultAtLocation [Line: 895]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [895] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret5 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret5 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: 328]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L50] int cleanupTimeShifts = 4; [L195] int waterLevel = 1; [L196] int methaneLevelCritical = 0; [L502] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L703] int pumpRunning = 0; [L704] int systemActive = 1; [L131] int retValue_acc ; [L132] int tmp ; [L136] FCALL select_helpers() [L137] FCALL select_features() [L138] CALL, EXPR valid_product() [L315] int retValue_acc ; [L318] retValue_acc = 1 [L319] return (retValue_acc); [L138] RET, EXPR valid_product() [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L142] FCALL setup() [L143] CALL runTest() [L122] CALL test() [L897] int splverifierCounter ; [L898] int tmp ; [L899] int tmp___0 ; [L900] int tmp___1 ; [L901] int tmp___2 ; [L904] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L906] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L908] COND TRUE splverifierCounter < 4 [L914] tmp = __VERIFIER_nondet_int() [L916] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L918] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L213] COND TRUE waterLevel < 2 [L214] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L918] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L924] tmp___0 = __VERIFIER_nondet_int() [L926] 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] [L934] tmp___2 = __VERIFIER_nondet_int() [L936] COND FALSE !(\read(tmp___2)) [L942] tmp___1 = __VERIFIER_nondet_int() [L944] COND TRUE \read(tmp___1) [L946] CALL stopSystem() [L876] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L883] systemActive = 0 [L946] RET stopSystem() [L953] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L710] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L717] COND FALSE !(\read(systemActive)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L725] CALL __utac_acc__Specification3_spec__1() [L159] int tmp ; [L160] int tmp___0 ; [L161] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L165] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L234] int retValue_acc ; [L237] retValue_acc = methaneLevelCritical [L238] return (retValue_acc); [L165] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L165] tmp = isMethaneLevelCritical() [L167] COND FALSE !(\read(tmp)) [L171] CALL, EXPR getWaterLevel() [L266] int retValue_acc ; [L269] retValue_acc = waterLevel [L270] return (retValue_acc); [L171] RET, EXPR getWaterLevel() [L171] tmp___0 = getWaterLevel() [L173] COND TRUE tmp___0 == 2 [L175] CALL, EXPR isPumpRunning() [L809] int retValue_acc ; [L812] retValue_acc = pumpRunning [L813] return (retValue_acc); [L175] RET, EXPR isPumpRunning() [L175] tmp___1 = isPumpRunning() [L177] COND FALSE !(\read(tmp___1)) [L181] CALL __automaton_fail() [L328] 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 7 procedures, 65 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 164 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 158 mSDsluCounter, 480 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 235 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 136 IncrementalHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 245 mSDtfsCounter, 136 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=158occurred in iteration=4, InterpolantAutomatonStates: 15, 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, 10 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 108 NumberOfCodeBlocks, 108 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 76 ConstructedInterpolants, 0 QuantifiedInterpolants, 148 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! [2023-11-29 06:42:34,462 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5de9d6-5342-40ae-8a42-a20a75fb08ac/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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