./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product13.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46051808-6d06-4ad4-a682-e4cac6efeaa8/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46051808-6d06-4ad4-a682-e4cac6efeaa8/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46051808-6d06-4ad4-a682-e4cac6efeaa8/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46051808-6d06-4ad4-a682-e4cac6efeaa8/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product13.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46051808-6d06-4ad4-a682-e4cac6efeaa8/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46051808-6d06-4ad4-a682-e4cac6efeaa8/bin/uautomizer-verify-bycVGegfSx --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 1b7b562c6a835e9c81bbd978940c7270ae455ff1120bac33da414b2ebf27928d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 20:59:47,282 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 20:59:47,365 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46051808-6d06-4ad4-a682-e4cac6efeaa8/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-21 20:59:47,375 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 20:59:47,376 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 20:59:47,414 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 20:59:47,415 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 20:59:47,415 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 20:59:47,416 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 20:59:47,417 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 20:59:47,418 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 20:59:47,418 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 20:59:47,419 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 20:59:47,420 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 20:59:47,421 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 20:59:47,421 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 20:59:47,422 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 20:59:47,423 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 20:59:47,423 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 20:59:47,424 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 20:59:47,425 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 20:59:47,425 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 20:59:47,426 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 20:59:47,426 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 20:59:47,427 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 20:59:47,428 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 20:59:47,428 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 20:59:47,429 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 20:59:47,429 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 20:59:47,430 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 20:59:47,430 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 20:59:47,431 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 20:59:47,431 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 20:59:47,432 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 20:59:47,432 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 20:59:47,432 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 20:59:47,433 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 20:59:47,433 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 20:59:47,433 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 20:59:47,434 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 20:59:47,434 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 20:59:47,435 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 20:59:47,435 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_46051808-6d06-4ad4-a682-e4cac6efeaa8/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46051808-6d06-4ad4-a682-e4cac6efeaa8/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b7b562c6a835e9c81bbd978940c7270ae455ff1120bac33da414b2ebf27928d [2023-11-21 20:59:47,755 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 20:59:47,790 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 20:59:47,793 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 20:59:47,794 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 20:59:47,795 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 20:59:47,796 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46051808-6d06-4ad4-a682-e4cac6efeaa8/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/product-lines/minepump_spec4_product13.cil.c [2023-11-21 20:59:51,039 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 20:59:51,320 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 20:59:51,321 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46051808-6d06-4ad4-a682-e4cac6efeaa8/sv-benchmarks/c/product-lines/minepump_spec4_product13.cil.c [2023-11-21 20:59:51,334 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46051808-6d06-4ad4-a682-e4cac6efeaa8/bin/uautomizer-verify-bycVGegfSx/data/a8aa69833/b864725747264fd6913360d05d92d1d0/FLAGf1956591e [2023-11-21 20:59:51,353 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46051808-6d06-4ad4-a682-e4cac6efeaa8/bin/uautomizer-verify-bycVGegfSx/data/a8aa69833/b864725747264fd6913360d05d92d1d0 [2023-11-21 20:59:51,355 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 20:59:51,357 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 20:59:51,359 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 20:59:51,360 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 20:59:51,367 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 20:59:51,370 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 08:59:51" (1/1) ... [2023-11-21 20:59:51,371 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cfa5c20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:51, skipping insertion in model container [2023-11-21 20:59:51,372 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 08:59:51" (1/1) ... [2023-11-21 20:59:51,434 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 20:59:51,698 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_46051808-6d06-4ad4-a682-e4cac6efeaa8/sv-benchmarks/c/product-lines/minepump_spec4_product13.cil.c[12494,12507] [2023-11-21 20:59:51,731 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 20:59:51,756 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 20:59:51,770 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] [2023-11-21 20:59:51,772 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [135] [2023-11-21 20:59:51,772 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [501] [2023-11-21 20:59:51,772 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [510] [2023-11-21 20:59:51,772 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [537] [2023-11-21 20:59:51,773 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [639] [2023-11-21 20:59:51,773 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [791] [2023-11-21 20:59:51,773 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [856] [2023-11-21 20:59:51,821 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_46051808-6d06-4ad4-a682-e4cac6efeaa8/sv-benchmarks/c/product-lines/minepump_spec4_product13.cil.c[12494,12507] [2023-11-21 20:59:51,837 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 20:59:51,858 INFO L206 MainTranslator]: Completed translation [2023-11-21 20:59:51,859 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:51 WrapperNode [2023-11-21 20:59:51,859 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 20:59:51,860 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 20:59:51,860 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 20:59:51,860 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 20:59:51,866 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:51" (1/1) ... [2023-11-21 20:59:51,882 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:51" (1/1) ... [2023-11-21 20:59:51,915 INFO L138 Inliner]: procedures = 51, calls = 94, calls flagged for inlining = 20, calls inlined = 16, statements flattened = 160 [2023-11-21 20:59:51,916 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 20:59:51,917 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 20:59:51,917 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 20:59:51,917 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 20:59:51,930 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:51" (1/1) ... [2023-11-21 20:59:51,930 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:51" (1/1) ... [2023-11-21 20:59:51,933 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:51" (1/1) ... [2023-11-21 20:59:51,945 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 20:59:51,946 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:51" (1/1) ... [2023-11-21 20:59:51,946 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:51" (1/1) ... [2023-11-21 20:59:51,951 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:51" (1/1) ... [2023-11-21 20:59:51,956 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:51" (1/1) ... [2023-11-21 20:59:51,957 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:51" (1/1) ... [2023-11-21 20:59:51,959 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:51" (1/1) ... [2023-11-21 20:59:51,962 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 20:59:51,963 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 20:59:51,963 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 20:59:51,963 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 20:59:51,964 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:51" (1/1) ... [2023-11-21 20:59:51,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 20:59:51,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46051808-6d06-4ad4-a682-e4cac6efeaa8/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:59:52,000 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46051808-6d06-4ad4-a682-e4cac6efeaa8/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 20:59:52,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46051808-6d06-4ad4-a682-e4cac6efeaa8/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 20:59:52,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 20:59:52,071 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-21 20:59:52,071 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-21 20:59:52,071 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-21 20:59:52,071 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-21 20:59:52,072 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-21 20:59:52,072 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-21 20:59:52,072 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2023-11-21 20:59:52,072 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2023-11-21 20:59:52,072 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-11-21 20:59:52,073 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-11-21 20:59:52,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 20:59:52,074 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-21 20:59:52,074 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-21 20:59:52,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 20:59:52,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 20:59:52,161 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 20:59:52,164 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 20:59:52,416 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 20:59:52,553 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 20:59:52,553 INFO L308 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-21 20:59:52,555 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 08:59:52 BoogieIcfgContainer [2023-11-21 20:59:52,555 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 20:59:52,558 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 20:59:52,558 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 20:59:52,562 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 20:59:52,562 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 08:59:51" (1/3) ... [2023-11-21 20:59:52,563 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bfa1a20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 08:59:52, skipping insertion in model container [2023-11-21 20:59:52,563 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:51" (2/3) ... [2023-11-21 20:59:52,564 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bfa1a20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 08:59:52, skipping insertion in model container [2023-11-21 20:59:52,564 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 08:59:52" (3/3) ... [2023-11-21 20:59:52,565 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product13.cil.c [2023-11-21 20:59:52,609 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 20:59:52,610 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 20:59:52,662 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 20:59:52,668 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;@17ae783b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 20:59:52,669 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 20:59:52,672 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 31 states have (on average 1.4193548387096775) internal successors, (44), 37 states have internal predecessors, (44), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-21 20:59:52,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-21 20:59:52,681 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:59:52,681 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 20:59:52,682 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 20:59:52,688 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:59:52,688 INFO L85 PathProgramCache]: Analyzing trace with hash 584498880, now seen corresponding path program 1 times [2023-11-21 20:59:52,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:59:52,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4959041] [2023-11-21 20:59:52,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:59:52,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:59:52,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:52,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 20:59:52,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:59:52,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4959041] [2023-11-21 20:59:52,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4959041] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 20:59:52,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 20:59:52,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 20:59:52,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181739858] [2023-11-21 20:59:52,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 20:59:52,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-21 20:59:52,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:59:53,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-21 20:59:53,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-21 20:59:53,018 INFO L87 Difference]: Start difference. First operand has 48 states, 31 states have (on average 1.4193548387096775) internal successors, (44), 37 states have internal predecessors, (44), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 20:59:53,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 20:59:53,122 INFO L93 Difference]: Finished difference Result 94 states and 125 transitions. [2023-11-21 20:59:53,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 20:59:53,125 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-21 20:59:53,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 20:59:53,135 INFO L225 Difference]: With dead ends: 94 [2023-11-21 20:59:53,136 INFO L226 Difference]: Without dead ends: 43 [2023-11-21 20:59:53,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-21 20:59:53,148 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 20:59:53,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 44 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 20:59:53,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2023-11-21 20:59:53,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2023-11-21 20:59:53,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 33 states have internal predecessors, (36), 9 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-21 20:59:53,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 53 transitions. [2023-11-21 20:59:53,202 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 53 transitions. Word has length 12 [2023-11-21 20:59:53,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 20:59:53,203 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 53 transitions. [2023-11-21 20:59:53,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 20:59:53,203 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 53 transitions. [2023-11-21 20:59:53,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-21 20:59:53,206 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:59:53,206 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 20:59:53,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 20:59:53,207 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 20:59:53,207 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:59:53,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1928936004, now seen corresponding path program 1 times [2023-11-21 20:59:53,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:59:53,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962287314] [2023-11-21 20:59:53,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:59:53,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:59:53,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:53,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 20:59:53,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:59:53,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962287314] [2023-11-21 20:59:53,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962287314] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 20:59:53,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 20:59:53,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 20:59:53,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073517257] [2023-11-21 20:59:53,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 20:59:53,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 20:59:53,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:59:53,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 20:59:53,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 20:59:53,381 INFO L87 Difference]: Start difference. First operand 43 states and 53 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 20:59:53,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 20:59:53,439 INFO L93 Difference]: Finished difference Result 63 states and 77 transitions. [2023-11-21 20:59:53,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 20:59:53,440 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-11-21 20:59:53,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 20:59:53,442 INFO L225 Difference]: With dead ends: 63 [2023-11-21 20:59:53,443 INFO L226 Difference]: Without dead ends: 35 [2023-11-21 20:59:53,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 20:59:53,445 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 7 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 51 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 [2023-11-21 20:59:53,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 51 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 20:59:53,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2023-11-21 20:59:53,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2023-11-21 20:59:53,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 28 states have internal predecessors, (30), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-21 20:59:53,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2023-11-21 20:59:53,457 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 42 transitions. Word has length 13 [2023-11-21 20:59:53,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 20:59:53,458 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 42 transitions. [2023-11-21 20:59:53,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 20:59:53,458 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2023-11-21 20:59:53,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-21 20:59:53,461 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:59:53,461 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 20:59:53,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 20:59:53,462 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 20:59:53,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:59:53,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1881113372, now seen corresponding path program 1 times [2023-11-21 20:59:53,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:59:53,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913740524] [2023-11-21 20:59:53,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:59:53,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:59:53,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:53,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 20:59:53,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:59:53,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913740524] [2023-11-21 20:59:53,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913740524] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 20:59:53,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 20:59:53,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 20:59:53,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888444466] [2023-11-21 20:59:53,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 20:59:53,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 20:59:53,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:59:53,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 20:59:53,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 20:59:53,601 INFO L87 Difference]: Start difference. First operand 35 states and 42 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 20:59:53,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 20:59:53,646 INFO L93 Difference]: Finished difference Result 68 states and 83 transitions. [2023-11-21 20:59:53,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 20:59:53,647 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-11-21 20:59:53,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 20:59:53,649 INFO L225 Difference]: With dead ends: 68 [2023-11-21 20:59:53,649 INFO L226 Difference]: Without dead ends: 35 [2023-11-21 20:59:53,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 20:59:53,655 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 31 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 20:59:53,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 28 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 20:59:53,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2023-11-21 20:59:53,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2023-11-21 20:59:53,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 28 states have internal predecessors, (29), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-21 20:59:53,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 41 transitions. [2023-11-21 20:59:53,669 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 41 transitions. Word has length 15 [2023-11-21 20:59:53,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 20:59:53,670 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 41 transitions. [2023-11-21 20:59:53,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 20:59:53,670 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 41 transitions. [2023-11-21 20:59:53,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-21 20:59:53,671 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:59:53,672 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] [2023-11-21 20:59:53,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 20:59:53,672 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 20:59:53,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:59:53,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1215133896, now seen corresponding path program 1 times [2023-11-21 20:59:53,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:59:53,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290665639] [2023-11-21 20:59:53,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:59:53,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:59:53,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:53,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-21 20:59:53,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:53,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 20:59:53,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:59:53,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290665639] [2023-11-21 20:59:53,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290665639] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 20:59:53,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 20:59:53,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-21 20:59:53,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829569335] [2023-11-21 20:59:53,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 20:59:53,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-21 20:59:53,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:59:53,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-21 20:59:53,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-21 20:59:53,937 INFO L87 Difference]: Start difference. First operand 35 states and 41 transitions. Second operand has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 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) [2023-11-21 20:59:54,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 20:59:54,140 INFO L93 Difference]: Finished difference Result 116 states and 143 transitions. [2023-11-21 20:59:54,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 20:59:54,141 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 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 20 [2023-11-21 20:59:54,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 20:59:54,143 INFO L225 Difference]: With dead ends: 116 [2023-11-21 20:59:54,143 INFO L226 Difference]: Without dead ends: 83 [2023-11-21 20:59:54,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-11-21 20:59:54,145 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 93 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 20:59:54,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 123 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 20:59:54,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2023-11-21 20:59:54,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 64. [2023-11-21 20:59:54,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 44 states have (on average 1.25) internal successors, (55), 50 states have internal predecessors, (55), 9 states have call successors, (9), 9 states have call predecessors, (9), 10 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2023-11-21 20:59:54,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 76 transitions. [2023-11-21 20:59:54,184 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 76 transitions. Word has length 20 [2023-11-21 20:59:54,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 20:59:54,185 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 76 transitions. [2023-11-21 20:59:54,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 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) [2023-11-21 20:59:54,187 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 76 transitions. [2023-11-21 20:59:54,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-21 20:59:54,189 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:59:54,189 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] [2023-11-21 20:59:54,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 20:59:54,189 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 20:59:54,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:59:54,190 INFO L85 PathProgramCache]: Analyzing trace with hash -201526247, now seen corresponding path program 1 times [2023-11-21 20:59:54,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:59:54,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124028073] [2023-11-21 20:59:54,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:59:54,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:59:54,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:54,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 20:59:54,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:54,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-21 20:59:54,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:54,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 20:59:54,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:59:54,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124028073] [2023-11-21 20:59:54,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124028073] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 20:59:54,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 20:59:54,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 20:59:54,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949706713] [2023-11-21 20:59:54,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 20:59:54,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 20:59:54,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:59:54,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 20:59:54,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 20:59:54,342 INFO L87 Difference]: Start difference. First operand 64 states and 76 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 20:59:54,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 20:59:54,431 INFO L93 Difference]: Finished difference Result 111 states and 135 transitions. [2023-11-21 20:59:54,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 20:59:54,431 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 23 [2023-11-21 20:59:54,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 20:59:54,432 INFO L225 Difference]: With dead ends: 111 [2023-11-21 20:59:54,433 INFO L226 Difference]: Without dead ends: 0 [2023-11-21 20:59:54,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-21 20:59:54,442 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 33 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 20:59:54,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 38 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 20:59:54,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-21 20:59:54,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-21 20:59:54,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 20:59:54,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-21 20:59:54,445 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2023-11-21 20:59:54,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 20:59:54,445 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-21 20:59:54,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 20:59:54,445 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-21 20:59:54,445 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-21 20:59:54,449 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-21 20:59:54,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 20:59:54,453 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-21 20:59:54,703 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 82 93) the Hoare annotation is: true [2023-11-21 20:59:54,703 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 82 93) no Hoare annotation was computed. [2023-11-21 20:59:54,704 INFO L899 garLoopResultBuilder]: For program point L506(line 506) no Hoare annotation was computed. [2023-11-21 20:59:54,704 INFO L895 garLoopResultBuilder]: At program point L696(line 696) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 1 ~systemActive~0))) [2023-11-21 20:59:54,704 INFO L899 garLoopResultBuilder]: For program point L696-1(lines 677 701) no Hoare annotation was computed. [2023-11-21 20:59:54,705 INFO L899 garLoopResultBuilder]: For program point L656-1(lines 656 662) no Hoare annotation was computed. [2023-11-21 20:59:54,705 INFO L899 garLoopResultBuilder]: For program point L685(lines 685 693) no Hoare annotation was computed. [2023-11-21 20:59:54,706 INFO L899 garLoopResultBuilder]: For program point L524(lines 524 530) no Hoare annotation was computed. [2023-11-21 20:59:54,706 INFO L899 garLoopResultBuilder]: For program point L681(lines 681 698) no Hoare annotation was computed. [2023-11-21 20:59:54,706 INFO L899 garLoopResultBuilder]: For program point L520(lines 520 533) no Hoare annotation was computed. [2023-11-21 20:59:54,711 INFO L899 garLoopResultBuilder]: For program point L520-1(lines 512 536) no Hoare annotation was computed. [2023-11-21 20:59:54,711 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 645 668) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 1 ~systemActive~0))) [2023-11-21 20:59:54,712 INFO L899 garLoopResultBuilder]: For program point L649-1(lines 648 667) no Hoare annotation was computed. [2023-11-21 20:59:54,712 INFO L895 garLoopResultBuilder]: At program point L691(line 691) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0))) [2023-11-21 20:59:54,713 INFO L895 garLoopResultBuilder]: At program point L683(line 683) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0))) [2023-11-21 20:59:54,713 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 645 668) no Hoare annotation was computed. [2023-11-21 20:59:54,713 INFO L899 garLoopResultBuilder]: For program point L683-1(line 683) no Hoare annotation was computed. [2023-11-21 20:59:54,713 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 506) no Hoare annotation was computed. [2023-11-21 20:59:54,713 INFO L899 garLoopResultBuilder]: For program point L546-1(line 546) no Hoare annotation was computed. [2023-11-21 20:59:54,713 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 540 569) no Hoare annotation was computed. [2023-11-21 20:59:54,714 INFO L899 garLoopResultBuilder]: For program point L565(lines 540 569) no Hoare annotation was computed. [2023-11-21 20:59:54,714 INFO L899 garLoopResultBuilder]: For program point L561(line 561) no Hoare annotation was computed. [2023-11-21 20:59:54,715 INFO L899 garLoopResultBuilder]: For program point L554(lines 554 558) no Hoare annotation was computed. [2023-11-21 20:59:54,716 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 540 569) the Hoare annotation is: true [2023-11-21 20:59:54,716 INFO L902 garLoopResultBuilder]: At program point L554-1(lines 554 558) the Hoare annotation is: true [2023-11-21 20:59:54,716 INFO L902 garLoopResultBuilder]: At program point L550-2(lines 550 564) the Hoare annotation is: true [2023-11-21 20:59:54,716 INFO L902 garLoopResultBuilder]: At program point L546(line 546) the Hoare annotation is: true [2023-11-21 20:59:54,716 INFO L895 garLoopResultBuilder]: At program point L824(line 824) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2023-11-21 20:59:54,716 INFO L899 garLoopResultBuilder]: For program point L626(lines 626 633) no Hoare annotation was computed. [2023-11-21 20:59:54,717 INFO L899 garLoopResultBuilder]: For program point L626-2(lines 626 633) no Hoare annotation was computed. [2023-11-21 20:59:54,717 INFO L895 garLoopResultBuilder]: At program point L845(lines 802 847) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2023-11-21 20:59:54,717 INFO L899 garLoopResultBuilder]: For program point L812(lines 812 818) no Hoare annotation was computed. [2023-11-21 20:59:54,717 INFO L899 garLoopResultBuilder]: For program point L812-1(lines 812 818) no Hoare annotation was computed. [2023-11-21 20:59:54,717 INFO L895 garLoopResultBuilder]: At program point L838-2(lines 832 843) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2023-11-21 20:59:54,717 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-21 20:59:54,717 INFO L899 garLoopResultBuilder]: For program point L822(lines 822 828) no Hoare annotation was computed. [2023-11-21 20:59:54,717 INFO L899 garLoopResultBuilder]: For program point L822-1(lines 822 828) no Hoare annotation was computed. [2023-11-21 20:59:54,718 INFO L899 garLoopResultBuilder]: For program point L851(lines 792 855) no Hoare annotation was computed. [2023-11-21 20:59:54,718 INFO L895 garLoopResultBuilder]: At program point L814(line 814) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2023-11-21 20:59:54,718 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-21 20:59:54,718 INFO L895 garLoopResultBuilder]: At program point L848(lines 801 849) the Hoare annotation is: false [2023-11-21 20:59:54,718 INFO L899 garLoopResultBuilder]: For program point L803(lines 802 847) no Hoare annotation was computed. [2023-11-21 20:59:54,718 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 70 81) no Hoare annotation was computed. [2023-11-21 20:59:54,718 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 70 81) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (not (= 1 ~systemActive~0)) (= |old(~waterLevel~0)| ~waterLevel~0)) [2023-11-21 20:59:54,720 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 669 675) no Hoare annotation was computed. [2023-11-21 20:59:54,721 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryFINAL(lines 669 675) the Hoare annotation is: true [2023-11-21 20:59:54,721 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 735 745) no Hoare annotation was computed. [2023-11-21 20:59:54,721 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 735 745) the Hoare annotation is: true [2023-11-21 20:59:54,724 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-21 20:59:54,728 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 20:59:54,745 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 08:59:54 BoogieIcfgContainer [2023-11-21 20:59:54,745 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 20:59:54,746 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 20:59:54,746 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 20:59:54,746 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 20:59:54,746 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 08:59:52" (3/4) ... [2023-11-21 20:59:54,748 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-21 20:59:54,753 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2023-11-21 20:59:54,753 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2023-11-21 20:59:54,753 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2023-11-21 20:59:54,753 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2023-11-21 20:59:54,753 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2023-11-21 20:59:54,754 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2023-11-21 20:59:54,767 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 38 nodes and edges [2023-11-21 20:59:54,767 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-21 20:59:54,768 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-21 20:59:54,768 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-21 20:59:54,769 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-21 20:59:54,799 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!((\old(pumpRunning) == 0)) || ((pumpRunning == 0) && (\old(waterLevel) == waterLevel))) || !((1 == systemActive))) [2023-11-21 20:59:54,827 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!((\old(pumpRunning) == 0)) || ((pumpRunning == 0) && (\old(waterLevel) == waterLevel))) || !((1 == systemActive))) [2023-11-21 20:59:54,878 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46051808-6d06-4ad4-a682-e4cac6efeaa8/bin/uautomizer-verify-bycVGegfSx/witness.graphml [2023-11-21 20:59:54,879 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46051808-6d06-4ad4-a682-e4cac6efeaa8/bin/uautomizer-verify-bycVGegfSx/witness.yml [2023-11-21 20:59:54,879 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 20:59:54,880 INFO L158 Benchmark]: Toolchain (without parser) took 3522.91ms. Allocated memory is still 153.1MB. Free memory was 110.6MB in the beginning and 81.9MB in the end (delta: 28.7MB). Peak memory consumption was 31.9MB. Max. memory is 16.1GB. [2023-11-21 20:59:54,880 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 153.1MB. Free memory is still 108.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 20:59:54,880 INFO L158 Benchmark]: CACSL2BoogieTranslator took 499.73ms. Allocated memory is still 153.1MB. Free memory was 110.6MB in the beginning and 91.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-21 20:59:54,881 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.23ms. Allocated memory is still 153.1MB. Free memory was 91.8MB in the beginning and 89.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 20:59:54,881 INFO L158 Benchmark]: Boogie Preprocessor took 44.89ms. Allocated memory is still 153.1MB. Free memory was 89.7MB in the beginning and 87.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 20:59:54,881 INFO L158 Benchmark]: RCFGBuilder took 592.59ms. Allocated memory is still 153.1MB. Free memory was 87.6MB in the beginning and 64.8MB in the end (delta: 22.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-21 20:59:54,882 INFO L158 Benchmark]: TraceAbstraction took 2187.27ms. Allocated memory is still 153.1MB. Free memory was 64.1MB in the beginning and 88.2MB in the end (delta: -24.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 20:59:54,882 INFO L158 Benchmark]: Witness Printer took 133.43ms. Allocated memory is still 153.1MB. Free memory was 88.2MB in the beginning and 81.9MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-21 20:59:54,884 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 153.1MB. Free memory is still 108.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 499.73ms. Allocated memory is still 153.1MB. Free memory was 110.6MB in the beginning and 91.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.23ms. Allocated memory is still 153.1MB. Free memory was 91.8MB in the beginning and 89.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.89ms. Allocated memory is still 153.1MB. Free memory was 89.7MB in the beginning and 87.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 592.59ms. Allocated memory is still 153.1MB. Free memory was 87.6MB in the beginning and 64.8MB in the end (delta: 22.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 2187.27ms. Allocated memory is still 153.1MB. Free memory was 64.1MB in the beginning and 88.2MB in the end (delta: -24.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 133.43ms. Allocated memory is still 153.1MB. Free memory was 88.2MB in the beginning and 81.9MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] - GenericResultAtLocation [Line: 135]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [135] - GenericResultAtLocation [Line: 501]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [501] - GenericResultAtLocation [Line: 510]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [510] - GenericResultAtLocation [Line: 537]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [537] - GenericResultAtLocation [Line: 639]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [639] - GenericResultAtLocation [Line: 791]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [791] - GenericResultAtLocation [Line: 856]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [856] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 506]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 48 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.1s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 168 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 164 mSDsluCounter, 284 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 138 mSDsCounter, 65 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 180 IncrementalHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 65 mSolverCounterUnsat, 146 mSDtfsCounter, 180 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=64occurred in iteration=4, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 19 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 17 LocationsWithAnnotation, 87 PreInvPairs, 94 NumberOfFragments, 110 HoareAnnotationTreeSize, 87 FomulaSimplifications, 213 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 17 FomulaSimplificationsInter, 388 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 78 ConstructedInterpolants, 0 QuantifiedInterpolants, 159 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 550]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 735]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 801]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 645]: Loop Invariant Derived loop invariant: ((!((\old(pumpRunning) == 0)) || ((pumpRunning == 0) && (\old(waterLevel) == waterLevel))) || !((1 == systemActive))) - InvariantResult [Line: 802]: Loop Invariant Derived loop invariant: (((pumpRunning == 0) && (1 == systemActive)) && (splverifierCounter == 0)) RESULT: Ultimate proved your program to be correct! [2023-11-21 20:59:54,916 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46051808-6d06-4ad4-a682-e4cac6efeaa8/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE