./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product46.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a 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_295a118f-1bd5-4377-9b26-5cfe55c4a231/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295a118f-1bd5-4377-9b26-5cfe55c4a231/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295a118f-1bd5-4377-9b26-5cfe55c4a231/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295a118f-1bd5-4377-9b26-5cfe55c4a231/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product46.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295a118f-1bd5-4377-9b26-5cfe55c4a231/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295a118f-1bd5-4377-9b26-5cfe55c4a231/bin/uautomizer-verify-4GaUIPS5ZU --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 02fb1fa00f2030f7900be70496baf2f4c44344da378fa11ef09f1f26dc14ae9d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:02:52,941 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:02:53,059 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295a118f-1bd5-4377-9b26-5cfe55c4a231/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-31 22:02:53,069 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:02:53,071 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:02:53,115 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:02:53,116 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:02:53,116 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:02:53,118 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:02:53,120 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:02:53,120 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:02:53,121 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:02:53,123 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:02:53,125 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:02:53,125 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:02:53,126 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:02:53,126 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:02:53,126 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:02:53,127 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:02:53,127 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:02:53,132 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:02:53,133 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:02:53,133 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:02:53,133 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:02:53,134 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:02:53,134 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:02:53,134 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:02:53,135 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:02:53,135 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:02:53,138 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:02:53,139 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:02:53,139 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:02:53,140 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:02:53,140 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:02:53,141 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:02:53,141 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:02:53,142 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:02:53,143 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:02:53,143 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:02:53,143 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:02:53,144 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:02:53,144 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:02:53,144 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_295a118f-1bd5-4377-9b26-5cfe55c4a231/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295a118f-1bd5-4377-9b26-5cfe55c4a231/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 02fb1fa00f2030f7900be70496baf2f4c44344da378fa11ef09f1f26dc14ae9d [2024-10-31 22:02:53,504 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:02:53,543 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:02:53,547 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:02:53,548 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:02:53,549 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:02:53,551 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295a118f-1bd5-4377-9b26-5cfe55c4a231/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/product-lines/minepump_spec2_product46.cil.c Unable to find full path for "g++" [2024-10-31 22:02:55,750 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:02:56,007 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:02:56,008 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295a118f-1bd5-4377-9b26-5cfe55c4a231/sv-benchmarks/c/product-lines/minepump_spec2_product46.cil.c [2024-10-31 22:02:56,033 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295a118f-1bd5-4377-9b26-5cfe55c4a231/bin/uautomizer-verify-4GaUIPS5ZU/data/42298e616/95d74e2907624e76802c0ca730649eaa/FLAG88550aa74 [2024-10-31 22:02:56,339 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295a118f-1bd5-4377-9b26-5cfe55c4a231/bin/uautomizer-verify-4GaUIPS5ZU/data/42298e616/95d74e2907624e76802c0ca730649eaa [2024-10-31 22:02:56,343 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:02:56,344 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:02:56,346 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:02:56,346 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:02:56,354 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:02:56,355 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:02:56" (1/1) ... [2024-10-31 22:02:56,357 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28fc0845 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:56, skipping insertion in model container [2024-10-31 22:02:56,357 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:02:56" (1/1) ... [2024-10-31 22:02:56,425 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:02:56,857 WARN L251 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_295a118f-1bd5-4377-9b26-5cfe55c4a231/sv-benchmarks/c/product-lines/minepump_spec2_product46.cil.c[17174,17187] [2024-10-31 22:02:56,869 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:02:56,883 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:02:56,895 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] [2024-10-31 22:02:56,897 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [87] [2024-10-31 22:02:56,898 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [453] [2024-10-31 22:02:56,898 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [554] [2024-10-31 22:02:56,898 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [655] [2024-10-31 22:02:56,898 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [863] [2024-10-31 22:02:56,899 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [872] [2024-10-31 22:02:56,899 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [911] [2024-10-31 22:02:57,007 WARN L251 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_295a118f-1bd5-4377-9b26-5cfe55c4a231/sv-benchmarks/c/product-lines/minepump_spec2_product46.cil.c[17174,17187] [2024-10-31 22:02:57,012 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:02:57,037 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:02:57,038 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:57 WrapperNode [2024-10-31 22:02:57,038 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:02:57,040 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:02:57,040 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:02:57,040 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:02:57,049 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:57" (1/1) ... [2024-10-31 22:02:57,069 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:57" (1/1) ... [2024-10-31 22:02:57,109 INFO L138 Inliner]: procedures = 56, calls = 101, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 196 [2024-10-31 22:02:57,109 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:02:57,110 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:02:57,110 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:02:57,110 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:02:57,128 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:57" (1/1) ... [2024-10-31 22:02:57,129 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:57" (1/1) ... [2024-10-31 22:02:57,132 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:57" (1/1) ... [2024-10-31 22:02:57,153 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]. [2024-10-31 22:02:57,153 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:57" (1/1) ... [2024-10-31 22:02:57,153 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:57" (1/1) ... [2024-10-31 22:02:57,158 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:57" (1/1) ... [2024-10-31 22:02:57,163 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:57" (1/1) ... [2024-10-31 22:02:57,165 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:57" (1/1) ... [2024-10-31 22:02:57,166 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:57" (1/1) ... [2024-10-31 22:02:57,173 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:02:57,174 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:02:57,174 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:02:57,174 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:02:57,175 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:57" (1/1) ... [2024-10-31 22:02:57,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:02:57,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295a118f-1bd5-4377-9b26-5cfe55c4a231/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:57,217 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295a118f-1bd5-4377-9b26-5cfe55c4a231/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:02:57,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295a118f-1bd5-4377-9b26-5cfe55c4a231/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:02:57,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:02:57,244 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-10-31 22:02:57,245 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-10-31 22:02:57,245 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-10-31 22:02:57,245 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-10-31 22:02:57,245 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-10-31 22:02:57,245 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-10-31 22:02:57,245 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2024-10-31 22:02:57,245 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2024-10-31 22:02:57,245 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-10-31 22:02:57,246 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-10-31 22:02:57,246 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2024-10-31 22:02:57,246 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2024-10-31 22:02:57,246 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2024-10-31 22:02:57,246 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2024-10-31 22:02:57,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:02:57,247 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-10-31 22:02:57,247 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-10-31 22:02:57,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:02:57,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:02:57,334 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:02:57,336 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:02:57,657 INFO L? ?]: Removed 41 outVars from TransFormulas that were not future-live. [2024-10-31 22:02:57,657 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:02:57,686 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:02:57,687 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-31 22:02:57,688 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:02:57 BoogieIcfgContainer [2024-10-31 22:02:57,689 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:02:57,692 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:02:57,694 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:02:57,698 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:02:57,698 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:02:56" (1/3) ... [2024-10-31 22:02:57,699 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17bc7934 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:02:57, skipping insertion in model container [2024-10-31 22:02:57,700 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:57" (2/3) ... [2024-10-31 22:02:57,701 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17bc7934 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:02:57, skipping insertion in model container [2024-10-31 22:02:57,701 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:02:57" (3/3) ... [2024-10-31 22:02:57,704 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product46.cil.c [2024-10-31 22:02:57,725 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:02:57,726 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-31 22:02:57,806 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:02:57,814 INFO L333 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, 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;@287f42c0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:02:57,814 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-31 22:02:57,819 INFO L276 IsEmpty]: Start isEmpty. Operand has 96 states, 72 states have (on average 1.375) internal successors, (99), 80 states have internal predecessors, (99), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-31 22:02:57,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-10-31 22:02:57,831 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:02:57,832 INFO L215 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] [2024-10-31 22:02:57,833 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:02:57,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:57,839 INFO L85 PathProgramCache]: Analyzing trace with hash 92222794, now seen corresponding path program 1 times [2024-10-31 22:02:57,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:57,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031151588] [2024-10-31 22:02:57,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:57,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:57,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:58,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-31 22:02:58,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:58,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:58,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:58,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031151588] [2024-10-31 22:02:58,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031151588] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:58,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:58,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:02:58,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664475701] [2024-10-31 22:02:58,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:58,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-31 22:02:58,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:58,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 22:02:58,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:02:58,123 INFO L87 Difference]: Start difference. First operand has 96 states, 72 states have (on average 1.375) internal successors, (99), 80 states have internal predecessors, (99), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 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) [2024-10-31 22:02:58,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:02:58,161 INFO L93 Difference]: Finished difference Result 183 states and 248 transitions. [2024-10-31 22:02:58,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 22:02:58,163 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 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 25 [2024-10-31 22:02:58,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:02:58,174 INFO L225 Difference]: With dead ends: 183 [2024-10-31 22:02:58,175 INFO L226 Difference]: Without dead ends: 87 [2024-10-31 22:02:58,179 INFO L431 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 [2024-10-31 22:02:58,183 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:02:58,184 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:02:58,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-10-31 22:02:58,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2024-10-31 22:02:58,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 65 states have (on average 1.3076923076923077) internal successors, (85), 72 states have internal predecessors, (85), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 11 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-31 22:02:58,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 112 transitions. [2024-10-31 22:02:58,240 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 112 transitions. Word has length 25 [2024-10-31 22:02:58,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:02:58,240 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 112 transitions. [2024-10-31 22:02:58,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 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) [2024-10-31 22:02:58,241 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 112 transitions. [2024-10-31 22:02:58,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-10-31 22:02:58,244 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:02:58,244 INFO L215 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] [2024-10-31 22:02:58,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:02:58,245 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:02:58,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:58,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1552792509, now seen corresponding path program 1 times [2024-10-31 22:02:58,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:58,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569080820] [2024-10-31 22:02:58,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:58,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:58,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:58,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-31 22:02:58,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:58,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:58,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:58,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569080820] [2024-10-31 22:02:58,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569080820] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:58,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:58,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:02:58,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990189118] [2024-10-31 22:02:58,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:58,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:02:58,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:58,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:02:58,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:02:58,441 INFO L87 Difference]: Start difference. First operand 87 states and 112 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2024-10-31 22:02:58,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:02:58,461 INFO L93 Difference]: Finished difference Result 138 states and 178 transitions. [2024-10-31 22:02:58,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:02:58,462 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 26 [2024-10-31 22:02:58,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:02:58,463 INFO L225 Difference]: With dead ends: 138 [2024-10-31 22:02:58,463 INFO L226 Difference]: Without dead ends: 78 [2024-10-31 22:02:58,464 INFO L431 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 [2024-10-31 22:02:58,466 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 13 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:02:58,466 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 181 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:02:58,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-10-31 22:02:58,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2024-10-31 22:02:58,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 59 states have (on average 1.3220338983050848) internal successors, (78), 66 states have internal predecessors, (78), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-31 22:02:58,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 100 transitions. [2024-10-31 22:02:58,482 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 100 transitions. Word has length 26 [2024-10-31 22:02:58,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:02:58,483 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 100 transitions. [2024-10-31 22:02:58,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2024-10-31 22:02:58,483 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 100 transitions. [2024-10-31 22:02:58,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-10-31 22:02:58,489 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:02:58,489 INFO L215 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, 1] [2024-10-31 22:02:58,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:02:58,490 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:02:58,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:58,491 INFO L85 PathProgramCache]: Analyzing trace with hash 877193570, now seen corresponding path program 1 times [2024-10-31 22:02:58,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:58,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123786801] [2024-10-31 22:02:58,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:58,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:58,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:58,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-31 22:02:58,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:58,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:58,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:58,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123786801] [2024-10-31 22:02:58,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123786801] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:58,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:58,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:02:58,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544775482] [2024-10-31 22:02:58,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:58,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:02:58,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:58,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:02:58,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:02:58,717 INFO L87 Difference]: Start difference. First operand 78 states and 100 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) [2024-10-31 22:02:58,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:02:58,746 INFO L93 Difference]: Finished difference Result 148 states and 193 transitions. [2024-10-31 22:02:58,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:02:58,747 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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 31 [2024-10-31 22:02:58,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:02:58,749 INFO L225 Difference]: With dead ends: 148 [2024-10-31 22:02:58,753 INFO L226 Difference]: Without dead ends: 78 [2024-10-31 22:02:58,754 INFO L431 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 [2024-10-31 22:02:58,755 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 79 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:02:58,756 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 98 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:02:58,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-10-31 22:02:58,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2024-10-31 22:02:58,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 59 states have (on average 1.305084745762712) internal successors, (77), 66 states have internal predecessors, (77), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-31 22:02:58,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 99 transitions. [2024-10-31 22:02:58,780 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 99 transitions. Word has length 31 [2024-10-31 22:02:58,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:02:58,781 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 99 transitions. [2024-10-31 22:02:58,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) [2024-10-31 22:02:58,782 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 99 transitions. [2024-10-31 22:02:58,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-10-31 22:02:58,783 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:02:58,784 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:02:58,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:02:58,785 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:02:58,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:58,785 INFO L85 PathProgramCache]: Analyzing trace with hash -100681773, now seen corresponding path program 1 times [2024-10-31 22:02:58,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:58,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042141839] [2024-10-31 22:02:58,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:58,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:58,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:58,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-31 22:02:58,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:59,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 22:02:59,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:59,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-31 22:02:59,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:59,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:59,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:59,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042141839] [2024-10-31 22:02:59,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042141839] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:59,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:59,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:02:59,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760510575] [2024-10-31 22:02:59,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:59,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:02:59,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:59,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:02:59,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:02:59,037 INFO L87 Difference]: Start difference. First operand 78 states and 99 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-31 22:02:59,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:02:59,417 INFO L93 Difference]: Finished difference Result 229 states and 291 transitions. [2024-10-31 22:02:59,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 22:02:59,418 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 41 [2024-10-31 22:02:59,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:02:59,420 INFO L225 Difference]: With dead ends: 229 [2024-10-31 22:02:59,421 INFO L226 Difference]: Without dead ends: 159 [2024-10-31 22:02:59,422 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:02:59,423 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 181 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-31 22:02:59,424 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 282 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-31 22:02:59,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2024-10-31 22:02:59,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 153. [2024-10-31 22:02:59,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 116 states have (on average 1.2672413793103448) internal successors, (147), 124 states have internal predecessors, (147), 18 states have call successors, (18), 15 states have call predecessors, (18), 18 states have return successors, (23), 19 states have call predecessors, (23), 18 states have call successors, (23) [2024-10-31 22:02:59,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 188 transitions. [2024-10-31 22:02:59,451 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 188 transitions. Word has length 41 [2024-10-31 22:02:59,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:02:59,451 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 188 transitions. [2024-10-31 22:02:59,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-31 22:02:59,452 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 188 transitions. [2024-10-31 22:02:59,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-10-31 22:02:59,453 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:02:59,453 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:02:59,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:02:59,453 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:02:59,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:59,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1653796005, now seen corresponding path program 1 times [2024-10-31 22:02:59,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:59,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649232330] [2024-10-31 22:02:59,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:59,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:59,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:59,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-31 22:02:59,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:59,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 22:02:59,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:59,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-31 22:02:59,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:59,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:59,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:59,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649232330] [2024-10-31 22:02:59,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649232330] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:59,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:59,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:02:59,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132223478] [2024-10-31 22:02:59,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:59,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:02:59,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:59,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:02:59,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:02:59,663 INFO L87 Difference]: Start difference. First operand 153 states and 188 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-31 22:03:00,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:03:00,093 INFO L93 Difference]: Finished difference Result 298 states and 368 transitions. [2024-10-31 22:03:00,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-31 22:03:00,094 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 47 [2024-10-31 22:03:00,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:03:00,097 INFO L225 Difference]: With dead ends: 298 [2024-10-31 22:03:00,098 INFO L226 Difference]: Without dead ends: 153 [2024-10-31 22:03:00,099 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-10-31 22:03:00,101 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 112 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-31 22:03:00,101 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 339 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-31 22:03:00,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2024-10-31 22:03:00,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 151. [2024-10-31 22:03:00,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 114 states have (on average 1.236842105263158) internal successors, (141), 122 states have internal predecessors, (141), 18 states have call successors, (18), 15 states have call predecessors, (18), 18 states have return successors, (23), 19 states have call predecessors, (23), 18 states have call successors, (23) [2024-10-31 22:03:00,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 182 transitions. [2024-10-31 22:03:00,153 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 182 transitions. Word has length 47 [2024-10-31 22:03:00,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:03:00,153 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 182 transitions. [2024-10-31 22:03:00,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-31 22:03:00,154 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 182 transitions. [2024-10-31 22:03:00,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-10-31 22:03:00,157 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:03:00,158 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:03:00,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:03:00,160 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:03:00,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:00,161 INFO L85 PathProgramCache]: Analyzing trace with hash 2002782272, now seen corresponding path program 1 times [2024-10-31 22:03:00,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:00,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663383557] [2024-10-31 22:03:00,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:00,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:00,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:00,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-31 22:03:00,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:00,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 22:03:00,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:00,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:03:00,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:00,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-31 22:03:00,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:00,336 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-31 22:03:00,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:00,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663383557] [2024-10-31 22:03:00,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663383557] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:00,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:00,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:03:00,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282632038] [2024-10-31 22:03:00,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:00,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:03:00,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:00,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:03:00,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:03:00,344 INFO L87 Difference]: Start difference. First operand 151 states and 182 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-31 22:03:00,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:03:00,598 INFO L93 Difference]: Finished difference Result 299 states and 367 transitions. [2024-10-31 22:03:00,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:03:00,599 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 57 [2024-10-31 22:03:00,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:03:00,601 INFO L225 Difference]: With dead ends: 299 [2024-10-31 22:03:00,601 INFO L226 Difference]: Without dead ends: 156 [2024-10-31 22:03:00,602 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-31 22:03:00,607 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 55 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:03:00,607 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 349 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:03:00,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2024-10-31 22:03:00,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 154. [2024-10-31 22:03:00,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 117 states have (on average 1.2307692307692308) internal successors, (144), 125 states have internal predecessors, (144), 18 states have call successors, (18), 15 states have call predecessors, (18), 18 states have return successors, (23), 19 states have call predecessors, (23), 18 states have call successors, (23) [2024-10-31 22:03:00,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 185 transitions. [2024-10-31 22:03:00,642 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 185 transitions. Word has length 57 [2024-10-31 22:03:00,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:03:00,643 INFO L471 AbstractCegarLoop]: Abstraction has 154 states and 185 transitions. [2024-10-31 22:03:00,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-31 22:03:00,644 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 185 transitions. [2024-10-31 22:03:00,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-10-31 22:03:00,645 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:03:00,645 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:03:00,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:03:00,650 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:03:00,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:00,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1590585150, now seen corresponding path program 1 times [2024-10-31 22:03:00,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:00,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423266205] [2024-10-31 22:03:00,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:00,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:00,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:00,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-31 22:03:00,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:00,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 22:03:00,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:00,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:03:00,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:00,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-31 22:03:00,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:00,873 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-31 22:03:00,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:00,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423266205] [2024-10-31 22:03:00,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423266205] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:00,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:00,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:03:00,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763460347] [2024-10-31 22:03:00,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:00,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:03:00,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:00,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:03:00,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:03:00,880 INFO L87 Difference]: Start difference. First operand 154 states and 185 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-31 22:03:01,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:03:01,124 INFO L93 Difference]: Finished difference Result 304 states and 372 transitions. [2024-10-31 22:03:01,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:03:01,125 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 57 [2024-10-31 22:03:01,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:03:01,127 INFO L225 Difference]: With dead ends: 304 [2024-10-31 22:03:01,127 INFO L226 Difference]: Without dead ends: 158 [2024-10-31 22:03:01,128 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-10-31 22:03:01,129 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 122 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:03:01,129 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 271 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:03:01,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2024-10-31 22:03:01,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 156. [2024-10-31 22:03:01,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 119 states have (on average 1.226890756302521) internal successors, (146), 127 states have internal predecessors, (146), 18 states have call successors, (18), 15 states have call predecessors, (18), 18 states have return successors, (23), 19 states have call predecessors, (23), 18 states have call successors, (23) [2024-10-31 22:03:01,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 187 transitions. [2024-10-31 22:03:01,148 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 187 transitions. Word has length 57 [2024-10-31 22:03:01,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:03:01,149 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 187 transitions. [2024-10-31 22:03:01,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-31 22:03:01,150 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 187 transitions. [2024-10-31 22:03:01,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-10-31 22:03:01,151 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:03:01,151 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:03:01,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:03:01,152 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:03:01,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:01,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1662971708, now seen corresponding path program 1 times [2024-10-31 22:03:01,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:01,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137330252] [2024-10-31 22:03:01,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:01,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:01,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:01,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-31 22:03:01,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:01,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 22:03:01,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:01,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:03:01,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:01,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-31 22:03:01,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:01,266 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-31 22:03:01,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:01,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137330252] [2024-10-31 22:03:01,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137330252] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:01,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:01,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:03:01,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699847737] [2024-10-31 22:03:01,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:01,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:03:01,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:01,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:03:01,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:03:01,286 INFO L87 Difference]: Start difference. First operand 156 states and 187 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 4 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-31 22:03:01,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:03:01,641 INFO L93 Difference]: Finished difference Result 421 states and 530 transitions. [2024-10-31 22:03:01,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 22:03:01,642 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 4 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 57 [2024-10-31 22:03:01,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:03:01,645 INFO L225 Difference]: With dead ends: 421 [2024-10-31 22:03:01,645 INFO L226 Difference]: Without dead ends: 273 [2024-10-31 22:03:01,647 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:03:01,650 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 202 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-31 22:03:01,651 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 283 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-31 22:03:01,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2024-10-31 22:03:01,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 271. [2024-10-31 22:03:01,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 206 states have (on average 1.2184466019417475) internal successors, (251), 218 states have internal predecessors, (251), 33 states have call successors, (33), 30 states have call predecessors, (33), 31 states have return successors, (48), 33 states have call predecessors, (48), 33 states have call successors, (48) [2024-10-31 22:03:01,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 332 transitions. [2024-10-31 22:03:01,702 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 332 transitions. Word has length 57 [2024-10-31 22:03:01,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:03:01,702 INFO L471 AbstractCegarLoop]: Abstraction has 271 states and 332 transitions. [2024-10-31 22:03:01,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 4 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-31 22:03:01,703 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 332 transitions. [2024-10-31 22:03:01,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-10-31 22:03:01,704 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:03:01,704 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 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, 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] [2024-10-31 22:03:01,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:03:01,705 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:03:01,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:01,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1862242326, now seen corresponding path program 1 times [2024-10-31 22:03:01,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:01,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668361591] [2024-10-31 22:03:01,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:01,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:01,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:01,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-31 22:03:01,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:01,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-31 22:03:01,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:02,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 22:03:02,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:02,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:03:02,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:02,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-31 22:03:02,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:02,210 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-31 22:03:02,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:02,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668361591] [2024-10-31 22:03:02,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668361591] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:02,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:02,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-31 22:03:02,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688309519] [2024-10-31 22:03:02,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:02,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-31 22:03:02,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:02,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-31 22:03:02,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-10-31 22:03:02,213 INFO L87 Difference]: Start difference. First operand 271 states and 332 transitions. Second operand has 12 states, 12 states have (on average 4.0) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-31 22:03:03,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:03:03,306 INFO L93 Difference]: Finished difference Result 816 states and 1035 transitions. [2024-10-31 22:03:03,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-10-31 22:03:03,307 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 2 states have call successors, (5) Word has length 61 [2024-10-31 22:03:03,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:03:03,311 INFO L225 Difference]: With dead ends: 816 [2024-10-31 22:03:03,311 INFO L226 Difference]: Without dead ends: 553 [2024-10-31 22:03:03,313 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=208, Invalid=784, Unknown=0, NotChecked=0, Total=992 [2024-10-31 22:03:03,314 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 367 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-31 22:03:03,314 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [374 Valid, 486 Invalid, 663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 530 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-31 22:03:03,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-10-31 22:03:03,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 551. [2024-10-31 22:03:03,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 413 states have (on average 1.1864406779661016) internal successors, (490), 441 states have internal predecessors, (490), 72 states have call successors, (72), 58 states have call predecessors, (72), 65 states have return successors, (111), 71 states have call predecessors, (111), 72 states have call successors, (111) [2024-10-31 22:03:03,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 673 transitions. [2024-10-31 22:03:03,395 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 673 transitions. Word has length 61 [2024-10-31 22:03:03,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:03:03,396 INFO L471 AbstractCegarLoop]: Abstraction has 551 states and 673 transitions. [2024-10-31 22:03:03,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-31 22:03:03,396 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 673 transitions. [2024-10-31 22:03:03,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-10-31 22:03:03,399 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:03:03,399 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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] [2024-10-31 22:03:03,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:03:03,399 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:03:03,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:03,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1520356328, now seen corresponding path program 1 times [2024-10-31 22:03:03,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:03,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159102983] [2024-10-31 22:03:03,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:03,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:03,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:03,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-31 22:03:03,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:03,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-31 22:03:03,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:03,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 22:03:03,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:03,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 22:03:03,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:03,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:03:03,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:03,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-31 22:03:03,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:03,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-31 22:03:03,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:03,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-31 22:03:03,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:03,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:03:03,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:03,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-31 22:03:03,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:03,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 22:03:03,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:03,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-31 22:03:03,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:03,757 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 14 proven. 13 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-31 22:03:03,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:03,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159102983] [2024-10-31 22:03:03,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159102983] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:03:03,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2039913623] [2024-10-31 22:03:03,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:03,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:03:03,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295a118f-1bd5-4377-9b26-5cfe55c4a231/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:03,784 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295a118f-1bd5-4377-9b26-5cfe55c4a231/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:03:03,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295a118f-1bd5-4377-9b26-5cfe55c4a231/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 22:03:03,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:03,917 INFO L255 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-31 22:03:03,932 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:03:04,175 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-31 22:03:04,179 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:03:04,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2039913623] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:04,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:03:04,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [14] total 19 [2024-10-31 22:03:04,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649312107] [2024-10-31 22:03:04,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:04,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-31 22:03:04,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:04,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-31 22:03:04,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2024-10-31 22:03:04,182 INFO L87 Difference]: Start difference. First operand 551 states and 673 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 6 states have internal predecessors, (79), 3 states have call successors, (13), 3 states have call predecessors, (13), 5 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) [2024-10-31 22:03:04,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:03:04,397 INFO L93 Difference]: Finished difference Result 1198 states and 1460 transitions. [2024-10-31 22:03:04,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 22:03:04,398 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 6 states have internal predecessors, (79), 3 states have call successors, (13), 3 states have call predecessors, (13), 5 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) Word has length 110 [2024-10-31 22:03:04,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:03:04,399 INFO L225 Difference]: With dead ends: 1198 [2024-10-31 22:03:04,399 INFO L226 Difference]: Without dead ends: 0 [2024-10-31 22:03:04,402 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2024-10-31 22:03:04,403 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 57 mSDsluCounter, 574 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:03:04,403 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 739 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:03:04,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-31 22:03:04,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-31 22:03:04,405 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) [2024-10-31 22:03:04,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-31 22:03:04,406 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 110 [2024-10-31 22:03:04,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:03:04,406 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 22:03:04,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 6 states have internal predecessors, (79), 3 states have call successors, (13), 3 states have call predecessors, (13), 5 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) [2024-10-31 22:03:04,406 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-31 22:03:04,407 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-31 22:03:04,409 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-31 22:03:04,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295a118f-1bd5-4377-9b26-5cfe55c4a231/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-31 22:03:04,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295a118f-1bd5-4377-9b26-5cfe55c4a231/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:03:04,613 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:03:04,615 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-31 22:03:08,162 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-10-31 22:03:08,200 WARN L156 FloydHoareUtils]: Requires clause for changeMethaneLevel contained old-variable. Original clause: (let ((.cse1 (= |old(~methaneLevelCritical~0)| 0))) (and (or (<= 1 ~methaneLevelCritical~0) (< |old(~methaneLevelCritical~0)| 1)) (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= ~pumpRunning~0 0) (<= 1 |old(~methaneLevelCritical~0)|) .cse0) (and .cse1 .cse0))) (or (not .cse1) (= ~methaneLevelCritical~0 0)))) Eliminated clause: (exists ((|old(~methaneLevelCritical~0)| Int)) (let ((.cse1 (= |old(~methaneLevelCritical~0)| 0))) (and (or (< |old(~methaneLevelCritical~0)| 1) (< 0 ~methaneLevelCritical~0)) (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= ~pumpRunning~0 0) (<= 1 |old(~methaneLevelCritical~0)|) .cse0) (and .cse1 .cse0))) (or (not .cse1) (= ~methaneLevelCritical~0 0))))) [2024-10-31 22:03:08,209 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-31 22:03:08,216 WARN L156 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse0 (= 1 ~systemActive~0))) (or (and (<= 1 ~methaneLevelCritical~0) .cse0) (and (= ~methaneLevelCritical~0 0) .cse0))) (= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (let ((.cse0 (= 1 ~systemActive~0))) (or (and (<= 1 ~methaneLevelCritical~0) .cse0) (and (= ~methaneLevelCritical~0 0) .cse0))) [2024-10-31 22:03:08,236 WARN L156 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (and (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= ~methaneLevelCritical~0 0) .cse0) (and (= ~pumpRunning~0 0) (<= 1 ~methaneLevelCritical~0) .cse0))) (= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= ~methaneLevelCritical~0 0) .cse0) (and (= ~pumpRunning~0 0) (<= 1 ~methaneLevelCritical~0) .cse0))) [2024-10-31 22:03:08,243 WARN L156 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__methaneQuery contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= ~methaneLevelCritical~0 0) .cse0) (and (<= 1 ~methaneLevelCritical~0) .cse0 (= |old(~pumpRunning~0)| 0))))) Eliminated clause: (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= ~methaneLevelCritical~0 0) .cse0) (and (= ~pumpRunning~0 0) (<= 1 ~methaneLevelCritical~0) .cse0))) [2024-10-31 22:03:08,265 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.10 10:03:08 BoogieIcfgContainer [2024-10-31 22:03:08,267 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-31 22:03:08,268 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:03:08,268 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:03:08,268 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:03:08,269 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:02:57" (3/4) ... [2024-10-31 22:03:08,271 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-10-31 22:03:08,278 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-10-31 22:03:08,278 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-10-31 22:03:08,278 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-10-31 22:03:08,278 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-10-31 22:03:08,278 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2024-10-31 22:03:08,279 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-10-31 22:03:08,279 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2024-10-31 22:03:08,279 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2024-10-31 22:03:08,287 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2024-10-31 22:03:08,288 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-10-31 22:03:08,289 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-31 22:03:08,289 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-31 22:03:08,289 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-31 22:03:08,418 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295a118f-1bd5-4377-9b26-5cfe55c4a231/bin/uautomizer-verify-4GaUIPS5ZU/witness.graphml [2024-10-31 22:03:08,418 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295a118f-1bd5-4377-9b26-5cfe55c4a231/bin/uautomizer-verify-4GaUIPS5ZU/witness.yml [2024-10-31 22:03:08,418 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:03:08,419 INFO L158 Benchmark]: Toolchain (without parser) took 12074.83ms. Allocated memory was 138.4MB in the beginning and 224.4MB in the end (delta: 86.0MB). Free memory was 81.3MB in the beginning and 114.4MB in the end (delta: -33.1MB). Peak memory consumption was 55.9MB. Max. memory is 16.1GB. [2024-10-31 22:03:08,419 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 138.4MB. Free memory is still 109.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:03:08,420 INFO L158 Benchmark]: CACSL2BoogieTranslator took 692.83ms. Allocated memory was 138.4MB in the beginning and 186.6MB in the end (delta: 48.2MB). Free memory was 81.2MB in the beginning and 148.2MB in the end (delta: -67.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-10-31 22:03:08,420 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.52ms. Allocated memory is still 186.6MB. Free memory was 148.2MB in the beginning and 145.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:03:08,420 INFO L158 Benchmark]: Boogie Preprocessor took 63.08ms. Allocated memory is still 186.6MB. Free memory was 145.7MB in the beginning and 143.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:03:08,421 INFO L158 Benchmark]: RCFGBuilder took 515.14ms. Allocated memory is still 186.6MB. Free memory was 143.5MB in the beginning and 125.3MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-31 22:03:08,421 INFO L158 Benchmark]: TraceAbstraction took 10574.92ms. Allocated memory was 186.6MB in the beginning and 224.4MB in the end (delta: 37.7MB). Free memory was 124.7MB in the beginning and 122.8MB in the end (delta: 1.9MB). Peak memory consumption was 101.1MB. Max. memory is 16.1GB. [2024-10-31 22:03:08,422 INFO L158 Benchmark]: Witness Printer took 150.73ms. Allocated memory is still 224.4MB. Free memory was 122.8MB in the beginning and 114.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-31 22:03:08,424 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 138.4MB. Free memory is still 109.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 692.83ms. Allocated memory was 138.4MB in the beginning and 186.6MB in the end (delta: 48.2MB). Free memory was 81.2MB in the beginning and 148.2MB in the end (delta: -67.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.52ms. Allocated memory is still 186.6MB. Free memory was 148.2MB in the beginning and 145.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.08ms. Allocated memory is still 186.6MB. Free memory was 145.7MB in the beginning and 143.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 515.14ms. Allocated memory is still 186.6MB. Free memory was 143.5MB in the beginning and 125.3MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 10574.92ms. Allocated memory was 186.6MB in the beginning and 224.4MB in the end (delta: 37.7MB). Free memory was 124.7MB in the beginning and 122.8MB in the end (delta: 1.9MB). Peak memory consumption was 101.1MB. Max. memory is 16.1GB. * Witness Printer took 150.73ms. Allocated memory is still 224.4MB. Free memory was 122.8MB in the beginning and 114.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. 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,"libacc.i","") [87] - GenericResultAtLocation [Line: 453]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [453] - GenericResultAtLocation [Line: 554]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [554] - GenericResultAtLocation [Line: 655]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [655] - GenericResultAtLocation [Line: 863]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [863] - GenericResultAtLocation [Line: 872]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [872] - GenericResultAtLocation [Line: 911]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [911] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * 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: 868]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 96 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.8s, OverallIterations: 10, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1226 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1188 mSDsluCounter, 3149 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2127 mSDsCounter, 329 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1314 IncrementalHoareTripleChecker+Invalid, 1643 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 329 mSolverCounterUnsat, 1022 mSDtfsCounter, 1314 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 284 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=551occurred in iteration=9, InterpolantAutomatonStates: 76, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 16 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 622 NumberOfCodeBlocks, 622 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 611 ConstructedInterpolants, 0 QuantifiedInterpolants, 1200 SizeOfPredicates, 1 NumberOfNonLiveVariables, 350 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 11 InterpolantComputations, 10 PerfectInterpolantSequences, 89/102 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: 921]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 922]: Loop Invariant Derived loop invariant: ((((methaneLevelCritical == 0) && (1 == systemActive)) && (splverifierCounter == 0)) || ((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (splverifierCounter == 0))) - InvariantResult [Line: 567]: Loop Invariant Derived loop invariant: 0 - ProcedureContractResult [Line: 688]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: (((methaneLevelCritical == 0) && (1 == systemActive)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive))) Ensures: ((((methaneLevelCritical == 0) && (1 == systemActive)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive))) && (((((((head == \old(head)) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (methAndRunningLastTime == \old(methAndRunningLastTime)))) - ProcedureContractResult [Line: 487]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Ensures: (((((\old(methaneLevelCritical) != 0) || (0 < methaneLevelCritical)) && ((((pumpRunning == 0) && (1 <= \old(methaneLevelCritical))) && (1 == systemActive)) || ((\old(methaneLevelCritical) == 0) && (1 == systemActive)))) && ((methaneLevelCritical == 0) || (\old(methaneLevelCritical) < 1))) && ((((((head == \old(head)) && (waterLevel == \old(waterLevel))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (methAndRunningLastTime == \old(methAndRunningLastTime)))) - ProcedureContractResult [Line: 664]: Procedure Contract for timeShift Derived contract for procedure timeShift. Requires: (((1 <= methaneLevelCritical) && (1 == systemActive)) || ((methaneLevelCritical == 0) && (1 == systemActive))) Ensures: ((((((((pumpRunning == 0) && (\old(waterLevel) == waterLevel)) || ((pumpRunning == \old(pumpRunning)) && (\old(pumpRunning) != 0))) || ((\old(pumpRunning) != 0) && (pumpRunning == 0))) || ((2 <= waterLevel) && (\old(waterLevel) == waterLevel))) && (((1 <= methaneLevelCritical) && (1 == systemActive)) || ((methaneLevelCritical == 0) && (1 == systemActive)))) && ((((pumpRunning == 0) && (\old(waterLevel) == waterLevel)) || ((\old(pumpRunning) != 0) && (pumpRunning == 0))) || (methaneLevelCritical < 1))) && ((((head == \old(head)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 557]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: (0 && ((((head == \old(head)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 499]: Procedure Contract for isMethaneLevelCritical Derived contract for procedure isMethaneLevelCritical. Requires: (((1 <= methaneLevelCritical) && (1 == systemActive)) || ((methaneLevelCritical == 0) && (1 == systemActive))) Ensures: (((((1 <= methaneLevelCritical) && (1 == systemActive)) || ((methaneLevelCritical == 0) && (1 == systemActive))) && (\result == methaneLevelCritical)) && (((((((head == \old(head)) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (methAndRunningLastTime == \old(methAndRunningLastTime)))) - ProcedureContractResult [Line: 475]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: (((methaneLevelCritical == 0) && (1 == systemActive)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive))) Ensures: ((((((methaneLevelCritical == 0) && (1 == systemActive)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive))) && (((pumpRunning != 0) || (\old(waterLevel) != 1)) || (1 < waterLevel))) && ((\old(waterLevel) < 2) || (\old(waterLevel) == waterLevel))) && ((((((head == \old(head)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (methAndRunningLastTime == \old(methAndRunningLastTime)))) - ProcedureContractResult [Line: 696]: Procedure Contract for processEnvironment__wrappee__methaneQuery Derived contract for procedure processEnvironment__wrappee__methaneQuery. Requires: (((methaneLevelCritical == 0) && (1 == systemActive)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive))) Ensures: ((((((pumpRunning == 0) || (methaneLevelCritical < 1)) && (((1 <= methaneLevelCritical) && (1 == systemActive)) || ((methaneLevelCritical == 0) && (1 == systemActive)))) && (((\old(pumpRunning) != 0) || (pumpRunning == 0)) || (1 < waterLevel))) && ((pumpRunning == \old(pumpRunning)) || (\old(pumpRunning) == 0))) && ((((((head == \old(head)) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (systemActive == \old(systemActive))) && (methAndRunningLastTime == \old(methAndRunningLastTime)))) - ProcedureContractResult [Line: 780]: Procedure Contract for isMethaneAlarm Derived contract for procedure isMethaneAlarm. Requires: ((((((methaneLevelCritical == 0) && (2 <= waterLevel)) && (1 == systemActive)) || (((pumpRunning != 0) && (methaneLevelCritical == 0)) && (1 == systemActive))) || (((1 <= methaneLevelCritical) && (2 <= waterLevel)) && (1 == systemActive))) || (((1 <= methaneLevelCritical) && (pumpRunning != 0)) && (1 == systemActive))) Ensures: ((((((((methaneLevelCritical == 0) && (2 <= waterLevel)) && (1 == systemActive)) || (((pumpRunning != 0) && (methaneLevelCritical == 0)) && (1 == systemActive))) || (((1 <= methaneLevelCritical) && (2 <= waterLevel)) && (1 == systemActive))) || (((1 <= methaneLevelCritical) && (pumpRunning != 0)) && (1 == systemActive))) && (\result == methaneLevelCritical)) && (((((((head == \old(head)) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (methAndRunningLastTime == \old(methAndRunningLastTime)))) RESULT: Ultimate proved your program to be correct! [2024-10-31 22:03:08,466 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295a118f-1bd5-4377-9b26-5cfe55c4a231/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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