./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product49.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae2d0a63-031f-4986-8170-5a3c8fc49eb8/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae2d0a63-031f-4986-8170-5a3c8fc49eb8/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae2d0a63-031f-4986-8170-5a3c8fc49eb8/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae2d0a63-031f-4986-8170-5a3c8fc49eb8/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product49.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae2d0a63-031f-4986-8170-5a3c8fc49eb8/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae2d0a63-031f-4986-8170-5a3c8fc49eb8/bin/uautomizer-verify-84ZbGMXZE1 --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 d7c4dde0ada366116691c2f175a080cab4880a7b4b6a5f42c97520b77f10420a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 06:37:53,008 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 06:37:53,075 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae2d0a63-031f-4986-8170-5a3c8fc49eb8/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 06:37:53,081 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 06:37:53,082 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 06:37:53,106 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 06:37:53,106 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 06:37:53,106 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 06:37:53,107 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 06:37:53,107 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 06:37:53,107 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 06:37:53,107 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 06:37:53,107 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 06:37:53,108 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 06:37:53,108 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 06:37:53,108 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 06:37:53,108 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 06:37:53,108 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 06:37:53,108 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 06:37:53,108 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 06:37:53,108 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 06:37:53,108 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 06:37:53,109 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 06:37:53,109 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 06:37:53,109 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 06:37:53,109 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 06:37:53,109 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 06:37:53,109 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 06:37:53,109 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 06:37:53,109 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:37:53,109 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 06:37:53,109 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:37:53,110 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:37:53,110 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 06:37:53,110 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:37:53,110 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 06:37:53,110 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:37:53,110 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:37:53,110 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 06:37:53,110 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 06:37:53,110 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 06:37:53,110 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 06:37:53,111 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 06:37:53,111 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 06:37:53,111 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 06:37:53,111 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 06:37:53,111 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 06:37:53,111 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 06:37:53,111 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_ae2d0a63-031f-4986-8170-5a3c8fc49eb8/bin/uautomizer-verify-84ZbGMXZE1 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 -> d7c4dde0ada366116691c2f175a080cab4880a7b4b6a5f42c97520b77f10420a [2024-12-02 06:37:53,395 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 06:37:53,405 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 06:37:53,407 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 06:37:53,409 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 06:37:53,409 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 06:37:53,410 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae2d0a63-031f-4986-8170-5a3c8fc49eb8/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/product-lines/minepump_spec1_product49.cil.c [2024-12-02 06:37:56,529 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae2d0a63-031f-4986-8170-5a3c8fc49eb8/bin/uautomizer-verify-84ZbGMXZE1/data/eb170903e/875df316c3624d1fbd2fe9304bfd1c20/FLAG20321b205 [2024-12-02 06:37:56,793 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 06:37:56,793 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae2d0a63-031f-4986-8170-5a3c8fc49eb8/sv-benchmarks/c/product-lines/minepump_spec1_product49.cil.c [2024-12-02 06:37:56,806 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae2d0a63-031f-4986-8170-5a3c8fc49eb8/bin/uautomizer-verify-84ZbGMXZE1/data/eb170903e/875df316c3624d1fbd2fe9304bfd1c20/FLAG20321b205 [2024-12-02 06:37:56,819 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae2d0a63-031f-4986-8170-5a3c8fc49eb8/bin/uautomizer-verify-84ZbGMXZE1/data/eb170903e/875df316c3624d1fbd2fe9304bfd1c20 [2024-12-02 06:37:56,822 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 06:37:56,823 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 06:37:56,825 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 06:37:56,825 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 06:37:56,830 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 06:37:56,831 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:37:56" (1/1) ... [2024-12-02 06:37:56,832 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a8491e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:37:56, skipping insertion in model container [2024-12-02 06:37:56,832 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:37:56" (1/1) ... [2024-12-02 06:37:56,865 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 06:37:57,160 WARN L250 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_ae2d0a63-031f-4986-8170-5a3c8fc49eb8/sv-benchmarks/c/product-lines/minepump_spec1_product49.cil.c[18430,18443] [2024-12-02 06:37:57,164 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:37:57,175 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 06:37:57,185 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [49] [2024-12-02 06:37:57,186 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [78] [2024-12-02 06:37:57,187 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [182] [2024-12-02 06:37:57,187 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [548] [2024-12-02 06:37:57,187 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [751] [2024-12-02 06:37:57,187 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [816] [2024-12-02 06:37:57,187 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [851] [2024-12-02 06:37:57,187 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [955] [2024-12-02 06:37:57,245 WARN L250 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_ae2d0a63-031f-4986-8170-5a3c8fc49eb8/sv-benchmarks/c/product-lines/minepump_spec1_product49.cil.c[18430,18443] [2024-12-02 06:37:57,245 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:37:57,267 INFO L204 MainTranslator]: Completed translation [2024-12-02 06:37:57,268 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:37:57 WrapperNode [2024-12-02 06:37:57,268 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 06:37:57,269 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 06:37:57,269 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 06:37:57,269 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 06:37:57,277 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:37:57" (1/1) ... [2024-12-02 06:37:57,289 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:37:57" (1/1) ... [2024-12-02 06:37:57,312 INFO L138 Inliner]: procedures = 55, calls = 98, calls flagged for inlining = 22, calls inlined = 19, statements flattened = 197 [2024-12-02 06:37:57,312 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 06:37:57,313 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 06:37:57,313 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 06:37:57,313 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 06:37:57,323 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:37:57" (1/1) ... [2024-12-02 06:37:57,324 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:37:57" (1/1) ... [2024-12-02 06:37:57,326 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:37:57" (1/1) ... [2024-12-02 06:37:57,343 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]. [2024-12-02 06:37:57,343 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:37:57" (1/1) ... [2024-12-02 06:37:57,343 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:37:57" (1/1) ... [2024-12-02 06:37:57,348 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:37:57" (1/1) ... [2024-12-02 06:37:57,349 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:37:57" (1/1) ... [2024-12-02 06:37:57,354 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:37:57" (1/1) ... [2024-12-02 06:37:57,356 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:37:57" (1/1) ... [2024-12-02 06:37:57,357 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:37:57" (1/1) ... [2024-12-02 06:37:57,359 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 06:37:57,360 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 06:37:57,360 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 06:37:57,360 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 06:37:57,361 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:37:57" (1/1) ... [2024-12-02 06:37:57,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:37:57,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae2d0a63-031f-4986-8170-5a3c8fc49eb8/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:37:57,396 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae2d0a63-031f-4986-8170-5a3c8fc49eb8/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 06:37:57,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae2d0a63-031f-4986-8170-5a3c8fc49eb8/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 06:37:57,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 06:37:57,429 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-12-02 06:37:57,429 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-12-02 06:37:57,429 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-12-02 06:37:57,429 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-12-02 06:37:57,429 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-12-02 06:37:57,429 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-12-02 06:37:57,429 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2024-12-02 06:37:57,429 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2024-12-02 06:37:57,430 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-12-02 06:37:57,430 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-12-02 06:37:57,430 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-12-02 06:37:57,430 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-12-02 06:37:57,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 06:37:57,430 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-12-02 06:37:57,430 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-12-02 06:37:57,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 06:37:57,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 06:37:57,503 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 06:37:57,504 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 06:37:57,762 INFO L? ?]: Removed 45 outVars from TransFormulas that were not future-live. [2024-12-02 06:37:57,762 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 06:37:57,774 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 06:37:57,775 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-12-02 06:37:57,775 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:37:57 BoogieIcfgContainer [2024-12-02 06:37:57,775 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 06:37:57,778 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 06:37:57,778 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 06:37:57,783 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 06:37:57,784 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:37:56" (1/3) ... [2024-12-02 06:37:57,784 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ae1a7f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:37:57, skipping insertion in model container [2024-12-02 06:37:57,784 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:37:57" (2/3) ... [2024-12-02 06:37:57,785 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ae1a7f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:37:57, skipping insertion in model container [2024-12-02 06:37:57,785 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:37:57" (3/3) ... [2024-12-02 06:37:57,786 INFO L128 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product49.cil.c [2024-12-02 06:37:57,803 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 06:37:57,805 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG minepump_spec1_product49.cil.c that has 8 procedures, 84 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2024-12-02 06:37:57,864 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 06:37:57,878 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;@6487f012, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 06:37:57,879 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 06:37:57,883 INFO L276 IsEmpty]: Start isEmpty. Operand has 84 states, 64 states have (on average 1.40625) internal successors, (90), 72 states have internal predecessors, (90), 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) [2024-12-02 06:37:57,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-12-02 06:37:57,898 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:37:57,898 INFO L218 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] [2024-12-02 06:37:57,899 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:37:57,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:37:57,905 INFO L85 PathProgramCache]: Analyzing trace with hash 821525656, now seen corresponding path program 1 times [2024-12-02 06:37:57,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:37:57,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471269899] [2024-12-02 06:37:57,914 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:37:57,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:37:58,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:37:58,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:37:58,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:37:58,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471269899] [2024-12-02 06:37:58,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471269899] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:37:58,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:37:58,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 06:37:58,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095140035] [2024-12-02 06:37:58,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:37:58,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 06:37:58,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:37:58,105 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 06:37:58,105 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 06:37:58,108 INFO L87 Difference]: Start difference. First operand has 84 states, 64 states have (on average 1.40625) internal successors, (90), 72 states have internal predecessors, (90), 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) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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) [2024-12-02 06:37:58,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:37:58,132 INFO L93 Difference]: Finished difference Result 160 states and 219 transitions. [2024-12-02 06:37:58,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 06:37:58,134 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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 23 [2024-12-02 06:37:58,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:37:58,142 INFO L225 Difference]: With dead ends: 160 [2024-12-02 06:37:58,143 INFO L226 Difference]: Without dead ends: 75 [2024-12-02 06:37:58,146 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 06:37:58,149 INFO L435 NwaCegarLoop]: 106 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, 106 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 [2024-12-02 06:37:58,150 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:37:58,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-12-02 06:37:58,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2024-12-02 06:37:58,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 57 states have (on average 1.3333333333333333) internal successors, (76), 64 states have internal predecessors, (76), 11 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2024-12-02 06:37:58,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 97 transitions. [2024-12-02 06:37:58,185 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 97 transitions. Word has length 23 [2024-12-02 06:37:58,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:37:58,185 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 97 transitions. [2024-12-02 06:37:58,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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) [2024-12-02 06:37:58,186 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 97 transitions. [2024-12-02 06:37:58,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-12-02 06:37:58,188 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:37:58,188 INFO L218 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] [2024-12-02 06:37:58,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 06:37:58,188 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:37:58,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:37:58,189 INFO L85 PathProgramCache]: Analyzing trace with hash 2053287890, now seen corresponding path program 1 times [2024-12-02 06:37:58,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:37:58,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404497702] [2024-12-02 06:37:58,189 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:37:58,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:37:58,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:37:58,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:37:58,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:37:58,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404497702] [2024-12-02 06:37:58,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404497702] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:37:58,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:37:58,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:37:58,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868798850] [2024-12-02 06:37:58,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:37:58,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:37:58,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:37:58,297 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:37:58,297 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:37:58,297 INFO L87 Difference]: Start difference. First operand 75 states and 97 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2024-12-02 06:37:58,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:37:58,316 INFO L93 Difference]: Finished difference Result 118 states and 152 transitions. [2024-12-02 06:37:58,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:37:58,317 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 23 [2024-12-02 06:37:58,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:37:58,318 INFO L225 Difference]: With dead ends: 118 [2024-12-02 06:37:58,319 INFO L226 Difference]: Without dead ends: 67 [2024-12-02 06:37:58,319 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:37:58,320 INFO L435 NwaCegarLoop]: 85 mSDtfsCounter, 12 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 155 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 [2024-12-02 06:37:58,321 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 155 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:37:58,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2024-12-02 06:37:58,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2024-12-02 06:37:58,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 52 states have (on average 1.3461538461538463) internal successors, (70), 59 states have internal predecessors, (70), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2024-12-02 06:37:58,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 86 transitions. [2024-12-02 06:37:58,331 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 86 transitions. Word has length 23 [2024-12-02 06:37:58,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:37:58,331 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 86 transitions. [2024-12-02 06:37:58,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2024-12-02 06:37:58,332 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 86 transitions. [2024-12-02 06:37:58,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-12-02 06:37:58,333 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:37:58,333 INFO L218 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] [2024-12-02 06:37:58,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 06:37:58,334 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:37:58,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:37:58,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1457814866, now seen corresponding path program 1 times [2024-12-02 06:37:58,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:37:58,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690167016] [2024-12-02 06:37:58,335 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:37:58,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:37:58,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:37:58,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:37:58,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:37:58,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690167016] [2024-12-02 06:37:58,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690167016] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:37:58,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:37:58,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 06:37:58,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842799814] [2024-12-02 06:37:58,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:37:58,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 06:37:58,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:37:58,484 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 06:37:58,484 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:37:58,485 INFO L87 Difference]: Start difference. First operand 67 states and 86 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 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) [2024-12-02 06:37:58,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:37:58,625 INFO L93 Difference]: Finished difference Result 127 states and 166 transitions. [2024-12-02 06:37:58,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:37:58,626 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 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 27 [2024-12-02 06:37:58,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:37:58,627 INFO L225 Difference]: With dead ends: 127 [2024-12-02 06:37:58,627 INFO L226 Difference]: Without dead ends: 67 [2024-12-02 06:37:58,628 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:37:58,629 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 138 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:37:58,629 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 210 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:37:58,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2024-12-02 06:37:58,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2024-12-02 06:37:58,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 52 states have (on average 1.3269230769230769) internal successors, (69), 59 states have internal predecessors, (69), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2024-12-02 06:37:58,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 85 transitions. [2024-12-02 06:37:58,639 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 85 transitions. Word has length 27 [2024-12-02 06:37:58,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:37:58,640 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 85 transitions. [2024-12-02 06:37:58,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 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) [2024-12-02 06:37:58,640 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 85 transitions. [2024-12-02 06:37:58,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-12-02 06:37:58,641 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:37:58,641 INFO L218 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] [2024-12-02 06:37:58,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 06:37:58,641 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:37:58,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:37:58,642 INFO L85 PathProgramCache]: Analyzing trace with hash 886649670, now seen corresponding path program 1 times [2024-12-02 06:37:58,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:37:58,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553576000] [2024-12-02 06:37:58,642 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:37:58,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:37:58,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:37:58,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:37:58,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:37:58,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553576000] [2024-12-02 06:37:58,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553576000] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:37:58,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:37:58,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:37:58,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826004671] [2024-12-02 06:37:58,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:37:58,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:37:58,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:37:58,735 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:37:58,735 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:37:58,735 INFO L87 Difference]: Start difference. First operand 67 states and 85 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-02 06:37:58,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:37:58,996 INFO L93 Difference]: Finished difference Result 197 states and 250 transitions. [2024-12-02 06:37:58,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 06:37:58,996 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 4 states have call successors, (4), 2 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 37 [2024-12-02 06:37:58,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:37:58,998 INFO L225 Difference]: With dead ends: 197 [2024-12-02 06:37:58,998 INFO L226 Difference]: Without dead ends: 137 [2024-12-02 06:37:58,999 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:37:59,000 INFO L435 NwaCegarLoop]: 104 mSDtfsCounter, 169 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 06:37:59,000 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 255 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 06:37:59,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-12-02 06:37:59,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 131. [2024-12-02 06:37:59,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 100 states have (on average 1.27) internal successors, (127), 107 states have internal predecessors, (127), 14 states have call successors, (14), 13 states have call predecessors, (14), 16 states have return successors, (19), 15 states have call predecessors, (19), 14 states have call successors, (19) [2024-12-02 06:37:59,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 160 transitions. [2024-12-02 06:37:59,026 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 160 transitions. Word has length 37 [2024-12-02 06:37:59,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:37:59,027 INFO L471 AbstractCegarLoop]: Abstraction has 131 states and 160 transitions. [2024-12-02 06:37:59,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-02 06:37:59,027 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 160 transitions. [2024-12-02 06:37:59,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-12-02 06:37:59,028 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:37:59,028 INFO L218 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] [2024-12-02 06:37:59,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 06:37:59,029 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:37:59,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:37:59,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1851620269, now seen corresponding path program 1 times [2024-12-02 06:37:59,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:37:59,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619618248] [2024-12-02 06:37:59,029 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:37:59,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:37:59,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:37:59,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:37:59,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:37:59,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619618248] [2024-12-02 06:37:59,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619618248] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:37:59,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:37:59,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:37:59,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262031663] [2024-12-02 06:37:59,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:37:59,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:37:59,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:37:59,123 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:37:59,123 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:37:59,123 INFO L87 Difference]: Start difference. First operand 131 states and 160 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 06:37:59,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:37:59,161 INFO L93 Difference]: Finished difference Result 258 states and 320 transitions. [2024-12-02 06:37:59,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:37:59,162 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 41 [2024-12-02 06:37:59,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:37:59,163 INFO L225 Difference]: With dead ends: 258 [2024-12-02 06:37:59,163 INFO L226 Difference]: Without dead ends: 134 [2024-12-02 06:37:59,164 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:37:59,165 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 0 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:37:59,166 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 322 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:37:59,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2024-12-02 06:37:59,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2024-12-02 06:37:59,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 103 states have (on average 1.2621359223300972) internal successors, (130), 110 states have internal predecessors, (130), 14 states have call successors, (14), 13 states have call predecessors, (14), 16 states have return successors, (19), 15 states have call predecessors, (19), 14 states have call successors, (19) [2024-12-02 06:37:59,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 163 transitions. [2024-12-02 06:37:59,186 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 163 transitions. Word has length 41 [2024-12-02 06:37:59,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:37:59,186 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 163 transitions. [2024-12-02 06:37:59,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 06:37:59,187 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 163 transitions. [2024-12-02 06:37:59,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-12-02 06:37:59,188 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:37:59,188 INFO L218 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] [2024-12-02 06:37:59,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 06:37:59,188 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:37:59,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:37:59,189 INFO L85 PathProgramCache]: Analyzing trace with hash -142524437, now seen corresponding path program 1 times [2024-12-02 06:37:59,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:37:59,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629085594] [2024-12-02 06:37:59,189 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:37:59,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:37:59,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:37:59,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:37:59,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:37:59,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629085594] [2024-12-02 06:37:59,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629085594] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:37:59,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:37:59,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 06:37:59,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998525662] [2024-12-02 06:37:59,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:37:59,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 06:37:59,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:37:59,303 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 06:37:59,303 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:37:59,303 INFO L87 Difference]: Start difference. First operand 134 states and 163 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 06:37:59,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:37:59,344 INFO L93 Difference]: Finished difference Result 263 states and 328 transitions. [2024-12-02 06:37:59,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 06:37:59,344 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 41 [2024-12-02 06:37:59,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:37:59,346 INFO L225 Difference]: With dead ends: 263 [2024-12-02 06:37:59,346 INFO L226 Difference]: Without dead ends: 136 [2024-12-02 06:37:59,347 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:37:59,348 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 0 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:37:59,348 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 397 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:37:59,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2024-12-02 06:37:59,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2024-12-02 06:37:59,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 105 states have (on average 1.2571428571428571) internal successors, (132), 112 states have internal predecessors, (132), 14 states have call successors, (14), 13 states have call predecessors, (14), 16 states have return successors, (19), 15 states have call predecessors, (19), 14 states have call successors, (19) [2024-12-02 06:37:59,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 165 transitions. [2024-12-02 06:37:59,368 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 165 transitions. Word has length 41 [2024-12-02 06:37:59,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:37:59,369 INFO L471 AbstractCegarLoop]: Abstraction has 136 states and 165 transitions. [2024-12-02 06:37:59,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 06:37:59,369 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 165 transitions. [2024-12-02 06:37:59,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-12-02 06:37:59,370 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:37:59,370 INFO L218 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] [2024-12-02 06:37:59,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 06:37:59,371 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:37:59,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:37:59,371 INFO L85 PathProgramCache]: Analyzing trace with hash -960172887, now seen corresponding path program 1 times [2024-12-02 06:37:59,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:37:59,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472811000] [2024-12-02 06:37:59,371 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:37:59,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:37:59,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:37:59,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:37:59,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:37:59,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472811000] [2024-12-02 06:37:59,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472811000] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:37:59,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:37:59,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:37:59,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239610240] [2024-12-02 06:37:59,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:37:59,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:37:59,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:37:59,481 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:37:59,481 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:37:59,481 INFO L87 Difference]: Start difference. First operand 136 states and 165 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 06:37:59,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:37:59,634 INFO L93 Difference]: Finished difference Result 420 states and 530 transitions. [2024-12-02 06:37:59,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:37:59,635 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 41 [2024-12-02 06:37:59,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:37:59,638 INFO L225 Difference]: With dead ends: 420 [2024-12-02 06:37:59,638 INFO L226 Difference]: Without dead ends: 291 [2024-12-02 06:37:59,639 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:37:59,640 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 113 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:37:59,640 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 280 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:37:59,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2024-12-02 06:37:59,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 183. [2024-12-02 06:37:59,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 140 states have (on average 1.2428571428571429) internal successors, (174), 149 states have internal predecessors, (174), 20 states have call successors, (20), 19 states have call predecessors, (20), 22 states have return successors, (26), 20 states have call predecessors, (26), 20 states have call successors, (26) [2024-12-02 06:37:59,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 220 transitions. [2024-12-02 06:37:59,684 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 220 transitions. Word has length 41 [2024-12-02 06:37:59,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:37:59,684 INFO L471 AbstractCegarLoop]: Abstraction has 183 states and 220 transitions. [2024-12-02 06:37:59,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 06:37:59,684 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 220 transitions. [2024-12-02 06:37:59,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-12-02 06:37:59,686 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:37:59,686 INFO L218 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] [2024-12-02 06:37:59,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 06:37:59,686 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:37:59,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:37:59,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1264667906, now seen corresponding path program 1 times [2024-12-02 06:37:59,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:37:59,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216379733] [2024-12-02 06:37:59,687 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:37:59,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:37:59,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:37:59,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:37:59,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:37:59,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216379733] [2024-12-02 06:37:59,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216379733] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:37:59,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:37:59,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 06:37:59,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063213777] [2024-12-02 06:37:59,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:37:59,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 06:37:59,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:37:59,815 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 06:37:59,815 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:37:59,815 INFO L87 Difference]: Start difference. First operand 183 states and 220 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-12-02 06:38:00,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:38:00,060 INFO L93 Difference]: Finished difference Result 187 states and 222 transitions. [2024-12-02 06:38:00,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 06:38:00,061 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 43 [2024-12-02 06:38:00,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:38:00,063 INFO L225 Difference]: With dead ends: 187 [2024-12-02 06:38:00,063 INFO L226 Difference]: Without dead ends: 185 [2024-12-02 06:38:00,064 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-12-02 06:38:00,064 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 112 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 06:38:00,065 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 268 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 06:38:00,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-12-02 06:38:00,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 183. [2024-12-02 06:38:00,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 140 states have (on average 1.2214285714285715) internal successors, (171), 149 states have internal predecessors, (171), 20 states have call successors, (20), 19 states have call predecessors, (20), 22 states have return successors, (26), 20 states have call predecessors, (26), 20 states have call successors, (26) [2024-12-02 06:38:00,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 217 transitions. [2024-12-02 06:38:00,099 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 217 transitions. Word has length 43 [2024-12-02 06:38:00,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:38:00,100 INFO L471 AbstractCegarLoop]: Abstraction has 183 states and 217 transitions. [2024-12-02 06:38:00,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-12-02 06:38:00,100 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 217 transitions. [2024-12-02 06:38:00,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-12-02 06:38:00,101 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:38:00,101 INFO L218 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] [2024-12-02 06:38:00,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 06:38:00,102 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:38:00,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:38:00,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1966279759, now seen corresponding path program 1 times [2024-12-02 06:38:00,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:38:00,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861009845] [2024-12-02 06:38:00,103 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:38:00,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:38:00,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:38:00,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:38:00,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:38:00,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861009845] [2024-12-02 06:38:00,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861009845] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:38:00,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:38:00,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 06:38:00,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789133926] [2024-12-02 06:38:00,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:38:00,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 06:38:00,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:38:00,246 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 06:38:00,246 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:38:00,246 INFO L87 Difference]: Start difference. First operand 183 states and 217 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-12-02 06:38:00,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:38:00,414 INFO L93 Difference]: Finished difference Result 523 states and 637 transitions. [2024-12-02 06:38:00,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 06:38:00,415 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 45 [2024-12-02 06:38:00,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:38:00,418 INFO L225 Difference]: With dead ends: 523 [2024-12-02 06:38:00,418 INFO L226 Difference]: Without dead ends: 347 [2024-12-02 06:38:00,419 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 06:38:00,419 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 56 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:38:00,420 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 378 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:38:00,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2024-12-02 06:38:00,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 347. [2024-12-02 06:38:00,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 262 states have (on average 1.1984732824427482) internal successors, (314), 279 states have internal predecessors, (314), 40 states have call successors, (40), 38 states have call predecessors, (40), 44 states have return successors, (55), 40 states have call predecessors, (55), 40 states have call successors, (55) [2024-12-02 06:38:00,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 409 transitions. [2024-12-02 06:38:00,479 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 409 transitions. Word has length 45 [2024-12-02 06:38:00,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:38:00,480 INFO L471 AbstractCegarLoop]: Abstraction has 347 states and 409 transitions. [2024-12-02 06:38:00,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-12-02 06:38:00,480 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 409 transitions. [2024-12-02 06:38:00,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-12-02 06:38:00,481 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:38:00,481 INFO L218 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, 1, 1] [2024-12-02 06:38:00,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 06:38:00,482 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:38:00,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:38:00,482 INFO L85 PathProgramCache]: Analyzing trace with hash -1822254637, now seen corresponding path program 1 times [2024-12-02 06:38:00,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:38:00,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914238412] [2024-12-02 06:38:00,483 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:38:00,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:38:00,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 06:38:00,501 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 06:38:00,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 06:38:00,538 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 06:38:00,538 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 06:38:00,539 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 06:38:00,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 06:38:00,544 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:38:00,588 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 06:38:00,591 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 06:38:00 BoogieIcfgContainer [2024-12-02 06:38:00,591 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 06:38:00,592 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 06:38:00,592 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 06:38:00,592 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 06:38:00,593 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:37:57" (3/4) ... [2024-12-02 06:38:00,593 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-02 06:38:00,665 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 42. [2024-12-02 06:38:00,738 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae2d0a63-031f-4986-8170-5a3c8fc49eb8/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 06:38:00,738 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae2d0a63-031f-4986-8170-5a3c8fc49eb8/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 06:38:00,738 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 06:38:00,739 INFO L158 Benchmark]: Toolchain (without parser) took 3916.18ms. Allocated memory was 117.4MB in the beginning and 209.7MB in the end (delta: 92.3MB). Free memory was 91.5MB in the beginning and 174.3MB in the end (delta: -82.8MB). Peak memory consumption was 125.1MB. Max. memory is 16.1GB. [2024-12-02 06:38:00,740 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 117.4MB. Free memory was 72.6MB in the beginning and 72.5MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 06:38:00,740 INFO L158 Benchmark]: CACSL2BoogieTranslator took 443.41ms. Allocated memory is still 117.4MB. Free memory was 91.4MB in the beginning and 72.7MB in the end (delta: 18.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 06:38:00,740 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.36ms. Allocated memory is still 117.4MB. Free memory was 72.7MB in the beginning and 70.9MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 06:38:00,740 INFO L158 Benchmark]: Boogie Preprocessor took 46.34ms. Allocated memory is still 117.4MB. Free memory was 70.9MB in the beginning and 69.0MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 06:38:00,741 INFO L158 Benchmark]: RCFGBuilder took 415.29ms. Allocated memory is still 117.4MB. Free memory was 69.0MB in the beginning and 52.8MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 06:38:00,741 INFO L158 Benchmark]: TraceAbstraction took 2813.18ms. Allocated memory was 117.4MB in the beginning and 209.7MB in the end (delta: 92.3MB). Free memory was 52.2MB in the beginning and 67.3MB in the end (delta: -15.1MB). Peak memory consumption was 81.7MB. Max. memory is 16.1GB. [2024-12-02 06:38:00,741 INFO L158 Benchmark]: Witness Printer took 146.62ms. Allocated memory is still 209.7MB. Free memory was 67.3MB in the beginning and 174.3MB in the end (delta: -107.0MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2024-12-02 06:38:00,743 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 117.4MB. Free memory was 72.6MB in the beginning and 72.5MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 443.41ms. Allocated memory is still 117.4MB. Free memory was 91.4MB in the beginning and 72.7MB in the end (delta: 18.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.36ms. Allocated memory is still 117.4MB. Free memory was 72.7MB in the beginning and 70.9MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.34ms. Allocated memory is still 117.4MB. Free memory was 70.9MB in the beginning and 69.0MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 415.29ms. Allocated memory is still 117.4MB. Free memory was 69.0MB in the beginning and 52.8MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2813.18ms. Allocated memory was 117.4MB in the beginning and 209.7MB in the end (delta: 92.3MB). Free memory was 52.2MB in the beginning and 67.3MB in the end (delta: -15.1MB). Peak memory consumption was 81.7MB. Max. memory is 16.1GB. * Witness Printer took 146.62ms. Allocated memory is still 209.7MB. Free memory was 67.3MB in the beginning and 174.3MB in the end (delta: -107.0MB). Peak memory consumption was 9.8MB. 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,"Specification1_spec.i","") [49] - GenericResultAtLocation [Line: 78]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [78] - GenericResultAtLocation [Line: 182]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [182] - GenericResultAtLocation [Line: 548]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [548] - GenericResultAtLocation [Line: 751]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [751] - GenericResultAtLocation [Line: 816]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [816] - GenericResultAtLocation [Line: 851]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [851] - GenericResultAtLocation [Line: 955]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [955] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 960]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L79] int cleanupTimeShifts = 4; [L352] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L555] int pumpRunning = 0; [L556] int systemActive = 1; [L853] int waterLevel = 1; [L854] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L160] int retValue_acc ; [L161] int tmp ; [L165] FCALL select_helpers() [L166] FCALL select_features() [L167] CALL, EXPR valid_product() [L843] int retValue_acc ; [L846] retValue_acc = 1 [L847] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L167] RET, EXPR valid_product() [L167] tmp = valid_product() [L169] COND TRUE \read(tmp) [L171] FCALL setup() [L172] CALL runTest() [L151] CALL test() [L753] int splverifierCounter ; [L754] int tmp ; [L755] int tmp___0 ; [L756] int tmp___1 ; [L757] int tmp___2 ; [L760] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L764] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L770] tmp = __VERIFIER_nondet_int() [L772] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L774] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L871] COND TRUE waterLevel < 2 [L872] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L774] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=2] [L780] tmp___0 = __VERIFIER_nondet_int() [L782] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=2] [L784] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L883] COND FALSE !(\read(methaneLevelCritical)) [L886] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L784] RET changeMethaneLevel() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=2] [L790] tmp___2 = __VERIFIER_nondet_int() [L792] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=2] [L805] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L562] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L569] COND TRUE \read(systemActive) [L571] CALL processEnvironment() [L617] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L620] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L635] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L591] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L594] COND TRUE ! pumpRunning [L596] CALL, EXPR isHighWaterLevel() [L714] int retValue_acc ; [L715] int tmp ; [L716] int tmp___0 ; [L720] CALL, EXPR isHighWaterSensorDry() [L933] int retValue_acc ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L936] COND FALSE !(waterLevel < 2) [L940] retValue_acc = 0 [L941] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L720] RET, EXPR isHighWaterSensorDry() [L720] tmp = isHighWaterSensorDry() [L722] COND FALSE !(\read(tmp)) [L725] tmp___0 = 1 VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp___0=1, waterLevel=2] [L727] retValue_acc = tmp___0 [L728] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L596] RET, EXPR isHighWaterLevel() [L596] tmp = isHighWaterLevel() [L598] COND TRUE \read(tmp) [L600] CALL activatePump() [L645] pumpRunning = 1 VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L600] RET activatePump() [L635] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L571] RET processEnvironment() [L577] CALL __utac_acc__Specification1_spec__1() [L54] int tmp ; [L55] int tmp___0 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L59] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L892] int retValue_acc ; [L895] retValue_acc = methaneLevelCritical [L896] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L59] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L59] tmp = isMethaneLevelCritical() [L61] COND TRUE \read(tmp) [L63] CALL, EXPR isPumpRunning() [L669] int retValue_acc ; [L672] retValue_acc = pumpRunning [L673] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L63] RET, EXPR isPumpRunning() [L63] tmp___0 = isPumpRunning() [L65] COND TRUE \read(tmp___0) [L67] CALL __automaton_fail() [L960] reach_error() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 84 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.7s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 610 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 600 mSDsluCounter, 2371 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1541 mSDsCounter, 86 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 409 IncrementalHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 86 mSolverCounterUnsat, 830 mSDtfsCounter, 409 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 63 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=347occurred in iteration=9, InterpolantAutomatonStates: 48, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 116 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 370 NumberOfCodeBlocks, 370 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 312 ConstructedInterpolants, 0 QuantifiedInterpolants, 554 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-12-02 06:38:00,763 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae2d0a63-031f-4986-8170-5a3c8fc49eb8/bin/uautomizer-verify-84ZbGMXZE1/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE