./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product05.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_e3183351-0319-4967-973a-11d0c02ed147/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3183351-0319-4967-973a-11d0c02ed147/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_e3183351-0319-4967-973a-11d0c02ed147/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3183351-0319-4967-973a-11d0c02ed147/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product05.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3183351-0319-4967-973a-11d0c02ed147/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_e3183351-0319-4967-973a-11d0c02ed147/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 b865f5e931ffaacb6a81afac914a10a47a42bb42c424711b6672929c081952ea --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-28 20:39:04,868 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 20:39:04,931 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3183351-0319-4967-973a-11d0c02ed147/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-28 20:39:04,936 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 20:39:04,936 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 20:39:04,960 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 20:39:04,960 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 20:39:04,961 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 20:39:04,961 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-28 20:39:04,962 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-28 20:39:04,962 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-28 20:39:04,963 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-28 20:39:04,964 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 20:39:04,964 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 20:39:04,965 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 20:39:04,965 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 20:39:04,966 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-28 20:39:04,966 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-28 20:39:04,967 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-28 20:39:04,967 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-28 20:39:04,968 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 20:39:04,969 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-28 20:39:04,969 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-28 20:39:04,970 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-28 20:39:04,970 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-28 20:39:04,970 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-28 20:39:04,971 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 20:39:04,971 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 20:39:04,972 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 20:39:04,972 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-28 20:39:04,973 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-28 20:39:04,973 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 20:39:04,973 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 20:39:04,973 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-28 20:39:04,974 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-28 20:39:04,974 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-28 20:39:04,974 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-28 20:39:04,974 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-28 20:39:04,974 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-28 20:39:04,975 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-28 20:39:04,975 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-28 20:39:04,975 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-28 20:39:04,975 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_e3183351-0319-4967-973a-11d0c02ed147/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3183351-0319-4967-973a-11d0c02ed147/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b865f5e931ffaacb6a81afac914a10a47a42bb42c424711b6672929c081952ea [2023-11-28 20:39:05,178 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 20:39:05,200 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 20:39:05,202 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 20:39:05,204 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 20:39:05,204 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 20:39:05,205 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3183351-0319-4967-973a-11d0c02ed147/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/product-lines/minepump_spec3_product05.cil.c [2023-11-28 20:39:07,936 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 20:39:08,167 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 20:39:08,168 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3183351-0319-4967-973a-11d0c02ed147/sv-benchmarks/c/product-lines/minepump_spec3_product05.cil.c [2023-11-28 20:39:08,181 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3183351-0319-4967-973a-11d0c02ed147/bin/uautomizer-verify-BQ2R08f2Ya/data/a817377d4/e059fad1b4f7446b90b2752b0950d09e/FLAG9f1c7f090 [2023-11-28 20:39:08,194 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3183351-0319-4967-973a-11d0c02ed147/bin/uautomizer-verify-BQ2R08f2Ya/data/a817377d4/e059fad1b4f7446b90b2752b0950d09e [2023-11-28 20:39:08,195 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 20:39:08,197 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 20:39:08,198 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 20:39:08,198 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 20:39:08,203 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 20:39:08,204 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:39:08" (1/1) ... [2023-11-28 20:39:08,205 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b38ecaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:39:08, skipping insertion in model container [2023-11-28 20:39:08,205 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:39:08" (1/1) ... [2023-11-28 20:39:08,250 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 20:39:08,389 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_e3183351-0319-4967-973a-11d0c02ed147/sv-benchmarks/c/product-lines/minepump_spec3_product05.cil.c[2141,2154] [2023-11-28 20:39:08,481 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:39:08,493 INFO L202 MainTranslator]: Completed pre-run [2023-11-28 20:39:08,503 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] [2023-11-28 20:39:08,505 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [87] [2023-11-28 20:39:08,505 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [96] [2023-11-28 20:39:08,506 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [238] [2023-11-28 20:39:08,506 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [306] [2023-11-28 20:39:08,506 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [402] [2023-11-28 20:39:08,506 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [768] [2023-11-28 20:39:08,507 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [849] [2023-11-28 20:39:08,513 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_e3183351-0319-4967-973a-11d0c02ed147/sv-benchmarks/c/product-lines/minepump_spec3_product05.cil.c[2141,2154] [2023-11-28 20:39:08,562 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:39:08,581 INFO L206 MainTranslator]: Completed translation [2023-11-28 20:39:08,581 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:39:08 WrapperNode [2023-11-28 20:39:08,582 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 20:39:08,583 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-28 20:39:08,583 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-28 20:39:08,583 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-28 20:39:08,591 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:39:08" (1/1) ... [2023-11-28 20:39:08,607 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:39:08" (1/1) ... [2023-11-28 20:39:08,631 INFO L138 Inliner]: procedures = 50, calls = 93, calls flagged for inlining = 19, calls inlined = 16, statements flattened = 160 [2023-11-28 20:39:08,632 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-28 20:39:08,633 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-28 20:39:08,633 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-28 20:39:08,633 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-28 20:39:08,644 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:39:08" (1/1) ... [2023-11-28 20:39:08,645 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:39:08" (1/1) ... [2023-11-28 20:39:08,647 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:39:08" (1/1) ... [2023-11-28 20:39:08,663 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]. [2023-11-28 20:39:08,663 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:39:08" (1/1) ... [2023-11-28 20:39:08,664 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:39:08" (1/1) ... [2023-11-28 20:39:08,669 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:39:08" (1/1) ... [2023-11-28 20:39:08,673 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:39:08" (1/1) ... [2023-11-28 20:39:08,675 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:39:08" (1/1) ... [2023-11-28 20:39:08,676 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:39:08" (1/1) ... [2023-11-28 20:39:08,679 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-28 20:39:08,680 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-28 20:39:08,680 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-28 20:39:08,680 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-28 20:39:08,681 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:39:08" (1/1) ... [2023-11-28 20:39:08,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 20:39:08,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3183351-0319-4967-973a-11d0c02ed147/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:39:08,709 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3183351-0319-4967-973a-11d0c02ed147/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-28 20:39:08,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3183351-0319-4967-973a-11d0c02ed147/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-28 20:39:08,738 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-28 20:39:08,738 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-11-28 20:39:08,739 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-11-28 20:39:08,739 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-28 20:39:08,739 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-28 20:39:08,739 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-11-28 20:39:08,739 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-11-28 20:39:08,739 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-28 20:39:08,739 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-28 20:39:08,739 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-28 20:39:08,740 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-28 20:39:08,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-28 20:39:08,740 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-28 20:39:08,740 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-28 20:39:08,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-28 20:39:08,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-28 20:39:08,820 INFO L241 CfgBuilder]: Building ICFG [2023-11-28 20:39:08,823 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-28 20:39:09,018 INFO L282 CfgBuilder]: Performing block encoding [2023-11-28 20:39:09,074 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-28 20:39:09,074 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-28 20:39:09,075 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:39:09 BoogieIcfgContainer [2023-11-28 20:39:09,075 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-28 20:39:09,077 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-28 20:39:09,078 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-28 20:39:09,081 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-28 20:39:09,081 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:39:08" (1/3) ... [2023-11-28 20:39:09,082 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@626b0aab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:39:09, skipping insertion in model container [2023-11-28 20:39:09,082 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:39:08" (2/3) ... [2023-11-28 20:39:09,082 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@626b0aab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:39:09, skipping insertion in model container [2023-11-28 20:39:09,082 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:39:09" (3/3) ... [2023-11-28 20:39:09,083 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product05.cil.c [2023-11-28 20:39:09,102 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-28 20:39:09,103 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-28 20:39:09,141 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-28 20:39:09,146 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;@39554c99, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-28 20:39:09,147 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-28 20:39:09,150 INFO L276 IsEmpty]: Start isEmpty. Operand has 57 states, 39 states have (on average 1.564102564102564) internal successors, (61), 45 states have internal predecessors, (61), 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) [2023-11-28 20:39:09,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-28 20:39:09,159 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:39:09,159 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:39:09,160 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:39:09,165 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:39:09,165 INFO L85 PathProgramCache]: Analyzing trace with hash 520284164, now seen corresponding path program 1 times [2023-11-28 20:39:09,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:39:09,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038293371] [2023-11-28 20:39:09,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:39:09,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:39:09,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:39:09,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 20:39:09,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:39:09,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:39:09,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:39:09,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038293371] [2023-11-28 20:39:09,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038293371] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:39:09,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:39:09,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 20:39:09,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597307016] [2023-11-28 20:39:09,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:39:09,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-28 20:39:09,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:39:09,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-28 20:39:09,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-28 20:39:09,386 INFO L87 Difference]: Start difference. First operand has 57 states, 39 states have (on average 1.564102564102564) internal successors, (61), 45 states have internal predecessors, (61), 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) [2023-11-28 20:39:09,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:39:09,438 INFO L93 Difference]: Finished difference Result 112 states and 163 transitions. [2023-11-28 20:39:09,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-28 20:39:09,441 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 [2023-11-28 20:39:09,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:39:09,450 INFO L225 Difference]: With dead ends: 112 [2023-11-28 20:39:09,450 INFO L226 Difference]: Without dead ends: 52 [2023-11-28 20:39:09,454 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 [2023-11-28 20:39:09,457 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:39:09,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 64 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:39:09,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2023-11-28 20:39:09,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2023-11-28 20:39:09,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 36 states have (on average 1.4166666666666667) internal successors, (51), 41 states have internal predecessors, (51), 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) [2023-11-28 20:39:09,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 70 transitions. [2023-11-28 20:39:09,500 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 70 transitions. Word has length 17 [2023-11-28 20:39:09,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:39:09,501 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 70 transitions. [2023-11-28 20:39:09,501 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) [2023-11-28 20:39:09,501 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 70 transitions. [2023-11-28 20:39:09,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-28 20:39:09,525 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:39:09,525 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:39:09,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-28 20:39:09,526 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:39:09,527 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:39:09,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1325341402, now seen corresponding path program 1 times [2023-11-28 20:39:09,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:39:09,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018752855] [2023-11-28 20:39:09,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:39:09,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:39:09,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:39:09,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-28 20:39:09,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:39:09,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:39:09,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:39:09,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018752855] [2023-11-28 20:39:09,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018752855] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:39:09,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:39:09,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 20:39:09,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108871260] [2023-11-28 20:39:09,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:39:09,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 20:39:09,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:39:09,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 20:39:09,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 20:39:09,662 INFO L87 Difference]: Start difference. First operand 52 states and 70 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) [2023-11-28 20:39:09,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:39:09,691 INFO L93 Difference]: Finished difference Result 77 states and 103 transitions. [2023-11-28 20:39:09,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 20:39:09,692 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 [2023-11-28 20:39:09,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:39:09,693 INFO L225 Difference]: With dead ends: 77 [2023-11-28 20:39:09,693 INFO L226 Difference]: Without dead ends: 44 [2023-11-28 20:39:09,694 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 [2023-11-28 20:39:09,696 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 11 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 86 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 [2023-11-28 20:39:09,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 86 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:39:09,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2023-11-28 20:39:09,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2023-11-28 20:39:09,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 31 states have (on average 1.4516129032258065) internal successors, (45), 36 states have internal predecessors, (45), 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) [2023-11-28 20:39:09,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 59 transitions. [2023-11-28 20:39:09,704 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 59 transitions. Word has length 18 [2023-11-28 20:39:09,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:39:09,705 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 59 transitions. [2023-11-28 20:39:09,705 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) [2023-11-28 20:39:09,705 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 59 transitions. [2023-11-28 20:39:09,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-28 20:39:09,706 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:39:09,707 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] [2023-11-28 20:39:09,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-28 20:39:09,707 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:39:09,708 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:39:09,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1273503039, now seen corresponding path program 1 times [2023-11-28 20:39:09,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:39:09,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417404994] [2023-11-28 20:39:09,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:39:09,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:39:09,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:39:09,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-28 20:39:09,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:39:09,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:39:09,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:39:09,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417404994] [2023-11-28 20:39:09,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417404994] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:39:09,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:39:09,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 20:39:09,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882818826] [2023-11-28 20:39:09,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:39:09,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 20:39:09,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:39:09,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 20:39:09,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 20:39:09,795 INFO L87 Difference]: Start difference. First operand 44 states and 59 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) [2023-11-28 20:39:09,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:39:09,822 INFO L93 Difference]: Finished difference Result 86 states and 117 transitions. [2023-11-28 20:39:09,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 20:39:09,823 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 [2023-11-28 20:39:09,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:39:09,824 INFO L225 Difference]: With dead ends: 86 [2023-11-28 20:39:09,824 INFO L226 Difference]: Without dead ends: 44 [2023-11-28 20:39:09,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 20:39:09,827 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 47 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:39:09,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 48 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:39:09,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2023-11-28 20:39:09,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2023-11-28 20:39:09,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 31 states have (on average 1.4193548387096775) internal successors, (44), 36 states have internal predecessors, (44), 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) [2023-11-28 20:39:09,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 58 transitions. [2023-11-28 20:39:09,836 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 58 transitions. Word has length 21 [2023-11-28 20:39:09,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:39:09,836 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 58 transitions. [2023-11-28 20:39:09,837 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) [2023-11-28 20:39:09,837 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 58 transitions. [2023-11-28 20:39:09,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-28 20:39:09,838 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:39:09,838 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] [2023-11-28 20:39:09,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-28 20:39:09,838 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:39:09,839 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:39:09,839 INFO L85 PathProgramCache]: Analyzing trace with hash -5589966, now seen corresponding path program 1 times [2023-11-28 20:39:09,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:39:09,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670719434] [2023-11-28 20:39:09,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:39:09,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:39:09,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:39:09,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-28 20:39:09,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:39:09,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-28 20:39:09,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:39:09,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:39:09,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:39:09,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670719434] [2023-11-28 20:39:09,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670719434] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:39:09,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:39:09,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-28 20:39:09,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935367855] [2023-11-28 20:39:09,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:39:09,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 20:39:09,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:39:09,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 20:39:09,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-28 20:39:09,959 INFO L87 Difference]: Start difference. First operand 44 states and 58 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, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-28 20:39:10,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:39:10,035 INFO L93 Difference]: Finished difference Result 123 states and 169 transitions. [2023-11-28 20:39:10,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 20:39:10,036 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, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 26 [2023-11-28 20:39:10,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:39:10,038 INFO L225 Difference]: With dead ends: 123 [2023-11-28 20:39:10,038 INFO L226 Difference]: Without dead ends: 81 [2023-11-28 20:39:10,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-28 20:39:10,040 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 30 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:39:10,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 136 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:39:10,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2023-11-28 20:39:10,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 80. [2023-11-28 20:39:10,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 56 states have (on average 1.3928571428571428) internal successors, (78), 64 states have internal predecessors, (78), 14 states have call successors, (14), 10 states have call predecessors, (14), 9 states have return successors, (15), 11 states have call predecessors, (15), 14 states have call successors, (15) [2023-11-28 20:39:10,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 107 transitions. [2023-11-28 20:39:10,057 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 107 transitions. Word has length 26 [2023-11-28 20:39:10,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:39:10,057 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 107 transitions. [2023-11-28 20:39:10,057 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, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-28 20:39:10,057 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 107 transitions. [2023-11-28 20:39:10,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-28 20:39:10,059 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:39:10,059 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, 1, 1] [2023-11-28 20:39:10,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-28 20:39:10,060 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:39:10,060 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:39:10,060 INFO L85 PathProgramCache]: Analyzing trace with hash 994294680, now seen corresponding path program 1 times [2023-11-28 20:39:10,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:39:10,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365262571] [2023-11-28 20:39:10,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:39:10,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:39:10,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:39:10,077 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 20:39:10,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:39:10,115 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 20:39:10,116 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-28 20:39:10,117 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-28 20:39:10,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-28 20:39:10,121 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-28 20:39:10,125 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-28 20:39:10,145 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret48 could not be translated [2023-11-28 20:39:10,157 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:39:10 BoogieIcfgContainer [2023-11-28 20:39:10,158 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-28 20:39:10,158 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-28 20:39:10,158 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-28 20:39:10,158 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-28 20:39:10,159 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:39:09" (3/4) ... [2023-11-28 20:39:10,160 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-28 20:39:10,172 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret48 could not be translated [2023-11-28 20:39:10,217 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3183351-0319-4967-973a-11d0c02ed147/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-28 20:39:10,217 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-28 20:39:10,218 INFO L158 Benchmark]: Toolchain (without parser) took 2021.21ms. Allocated memory is still 159.4MB. Free memory was 127.6MB in the beginning and 77.0MB in the end (delta: 50.6MB). Peak memory consumption was 51.8MB. Max. memory is 16.1GB. [2023-11-28 20:39:10,218 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 117.4MB. Free memory is still 71.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 20:39:10,219 INFO L158 Benchmark]: CACSL2BoogieTranslator took 384.32ms. Allocated memory is still 159.4MB. Free memory was 127.6MB in the beginning and 108.8MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-28 20:39:10,219 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.31ms. Allocated memory is still 159.4MB. Free memory was 108.8MB in the beginning and 106.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-28 20:39:10,219 INFO L158 Benchmark]: Boogie Preprocessor took 46.30ms. Allocated memory is still 159.4MB. Free memory was 106.8MB in the beginning and 104.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-28 20:39:10,220 INFO L158 Benchmark]: RCFGBuilder took 395.32ms. Allocated memory is still 159.4MB. Free memory was 104.7MB in the beginning and 84.5MB in the end (delta: 20.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-28 20:39:10,220 INFO L158 Benchmark]: TraceAbstraction took 1080.25ms. Allocated memory is still 159.4MB. Free memory was 84.1MB in the beginning and 80.4MB in the end (delta: 3.7MB). Peak memory consumption was 3.6MB. Max. memory is 16.1GB. [2023-11-28 20:39:10,220 INFO L158 Benchmark]: Witness Printer took 59.20ms. Allocated memory is still 159.4MB. Free memory was 80.4MB in the beginning and 77.0MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-28 20:39:10,223 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 117.4MB. Free memory is still 71.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 384.32ms. Allocated memory is still 159.4MB. Free memory was 127.6MB in the beginning and 108.8MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.31ms. Allocated memory is still 159.4MB. Free memory was 108.8MB in the beginning and 106.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.30ms. Allocated memory is still 159.4MB. Free memory was 106.8MB in the beginning and 104.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 395.32ms. Allocated memory is still 159.4MB. Free memory was 104.7MB in the beginning and 84.5MB in the end (delta: 20.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1080.25ms. Allocated memory is still 159.4MB. Free memory was 84.1MB in the beginning and 80.4MB in the end (delta: 3.7MB). Peak memory consumption was 3.6MB. Max. memory is 16.1GB. * Witness Printer took 59.20ms. Allocated memory is still 159.4MB. Free memory was 80.4MB in the beginning and 77.0MB in the end (delta: 3.4MB). 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,"featureselect.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [87] - GenericResultAtLocation [Line: 96]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [96] - GenericResultAtLocation [Line: 238]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [238] - GenericResultAtLocation [Line: 306]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [306] - GenericResultAtLocation [Line: 402]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [402] - GenericResultAtLocation [Line: 768]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [768] - GenericResultAtLocation [Line: 849]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [849] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret48 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret48 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: 92]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L105] int pumpRunning = 0; [L106] int systemActive = 1; [L307] int cleanupTimeShifts = 4; [L572] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L770] int waterLevel = 1; [L771] int methaneLevelCritical = 0; [L380] int retValue_acc ; [L381] int tmp ; [L385] FCALL select_helpers() [L386] FCALL select_features() [L387] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); [L387] RET, EXPR valid_product() [L387] tmp = valid_product() [L389] COND TRUE \read(tmp) [L391] FCALL setup() [L392] CALL runTest() [L374] CALL test() [L243] int splverifierCounter ; [L244] int tmp ; [L245] int tmp___0 ; [L246] int tmp___1 ; [L247] int tmp___2 ; [L250] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L252] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L254] COND TRUE splverifierCounter < 4 [L260] tmp = __VERIFIER_nondet_int() [L262] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L264] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L788] COND TRUE waterLevel < 2 [L789] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L264] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L270] tmp___0 = __VERIFIER_nondet_int() [L272] 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] [L280] tmp___2 = __VERIFIER_nondet_int() [L282] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L295] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L113] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L120] COND TRUE \read(systemActive) [L122] CALL processEnvironment() [L142] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L145] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L160] FCALL processEnvironment__wrappee__base() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L122] RET processEnvironment() [L128] CALL __utac_acc__Specification3_spec__1() [L851] int tmp ; [L852] int tmp___0 ; [L853] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L857] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L809] int retValue_acc ; [L812] retValue_acc = methaneLevelCritical [L813] return (retValue_acc); [L857] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L857] tmp = isMethaneLevelCritical() [L859] COND FALSE !(\read(tmp)) [L863] CALL, EXPR getWaterLevel() [L841] int retValue_acc ; [L844] retValue_acc = waterLevel [L845] return (retValue_acc); [L863] RET, EXPR getWaterLevel() [L863] tmp___0 = getWaterLevel() [L865] COND TRUE tmp___0 == 2 [L867] CALL, EXPR isPumpRunning() [L194] int retValue_acc ; [L197] retValue_acc = pumpRunning [L198] return (retValue_acc); [L867] RET, EXPR isPumpRunning() [L867] tmp___1 = isPumpRunning() [L869] COND FALSE !(\read(tmp___1)) [L873] CALL __automaton_fail() [L92] reach_error() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 57 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 91 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 88 mSDsluCounter, 334 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 126 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 76 IncrementalHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 208 mSDtfsCounter, 76 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=80occurred in iteration=4, InterpolantAutomatonStates: 12, 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, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 78 ConstructedInterpolants, 0 QuantifiedInterpolants, 142 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! [2023-11-28 20:39:10,245 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3183351-0319-4967-973a-11d0c02ed147/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