./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product64.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c301122a-2d74-458e-95e8-1a904f345547/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c301122a-2d74-458e-95e8-1a904f345547/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c301122a-2d74-458e-95e8-1a904f345547/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c301122a-2d74-458e-95e8-1a904f345547/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product64.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c301122a-2d74-458e-95e8-1a904f345547/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c301122a-2d74-458e-95e8-1a904f345547/bin/uautomizer-verify-4GaUIPS5ZU --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 59d05b45c2855b02eb92cf6428285b3e4820a09d46d6a6d0a0748347de3adbb6 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 21:59:24,943 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 21:59:25,056 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c301122a-2d74-458e-95e8-1a904f345547/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-31 21:59:25,062 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 21:59:25,062 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 21:59:25,096 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 21:59:25,097 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 21:59:25,097 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 21:59:25,101 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 21:59:25,102 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 21:59:25,103 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 21:59:25,103 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 21:59:25,104 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 21:59:25,104 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 21:59:25,104 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 21:59:25,107 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 21:59:25,107 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 21:59:25,107 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 21:59:25,108 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 21:59:25,108 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 21:59:25,108 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 21:59:25,112 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 21:59:25,113 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 21:59:25,113 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 21:59:25,113 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 21:59:25,113 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 21:59:25,114 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 21:59:25,114 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 21:59:25,114 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 21:59:25,114 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 21:59:25,115 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 21:59:25,115 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 21:59:25,115 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:59:25,115 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 21:59:25,115 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 21:59:25,116 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 21:59:25,116 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 21:59:25,116 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 21:59:25,116 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 21:59:25,117 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 21:59:25,117 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 21:59:25,119 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 21:59:25,119 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c301122a-2d74-458e-95e8-1a904f345547/bin/uautomizer-verify-4GaUIPS5ZU/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c301122a-2d74-458e-95e8-1a904f345547/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 59d05b45c2855b02eb92cf6428285b3e4820a09d46d6a6d0a0748347de3adbb6 [2024-10-31 21:59:25,381 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 21:59:25,408 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 21:59:25,410 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 21:59:25,412 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 21:59:25,412 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 21:59:25,413 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c301122a-2d74-458e-95e8-1a904f345547/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/product-lines/minepump_spec2_product64.cil.c Unable to find full path for "g++" [2024-10-31 21:59:27,633 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 21:59:27,908 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 21:59:27,909 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c301122a-2d74-458e-95e8-1a904f345547/sv-benchmarks/c/product-lines/minepump_spec2_product64.cil.c [2024-10-31 21:59:27,934 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c301122a-2d74-458e-95e8-1a904f345547/bin/uautomizer-verify-4GaUIPS5ZU/data/10d193991/aa4c2a1bf4454ab7932ea6a403d715ea/FLAGb5fb1f540 [2024-10-31 21:59:28,216 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c301122a-2d74-458e-95e8-1a904f345547/bin/uautomizer-verify-4GaUIPS5ZU/data/10d193991/aa4c2a1bf4454ab7932ea6a403d715ea [2024-10-31 21:59:28,220 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 21:59:28,221 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 21:59:28,223 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 21:59:28,224 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 21:59:28,229 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 21:59:28,230 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:59:28" (1/1) ... [2024-10-31 21:59:28,231 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5176097c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:28, skipping insertion in model container [2024-10-31 21:59:28,231 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:59:28" (1/1) ... [2024-10-31 21:59:28,286 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 21:59:28,654 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c301122a-2d74-458e-95e8-1a904f345547/sv-benchmarks/c/product-lines/minepump_spec2_product64.cil.c[6823,6836] [2024-10-31 21:59:28,844 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:59:28,872 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 21:59:28,894 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] [2024-10-31 21:59:28,902 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [87] [2024-10-31 21:59:28,902 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [363] [2024-10-31 21:59:28,906 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [435] [2024-10-31 21:59:28,907 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [444] [2024-10-31 21:59:28,907 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [483] [2024-10-31 21:59:28,911 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [587] [2024-10-31 21:59:28,912 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [684] [2024-10-31 21:59:28,946 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c301122a-2d74-458e-95e8-1a904f345547/sv-benchmarks/c/product-lines/minepump_spec2_product64.cil.c[6823,6836] [2024-10-31 21:59:29,026 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:59:29,071 INFO L204 MainTranslator]: Completed translation [2024-10-31 21:59:29,072 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:29 WrapperNode [2024-10-31 21:59:29,072 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 21:59:29,074 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 21:59:29,074 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 21:59:29,074 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 21:59:29,083 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:29" (1/1) ... [2024-10-31 21:59:29,106 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:29" (1/1) ... [2024-10-31 21:59:29,143 INFO L138 Inliner]: procedures = 60, calls = 108, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 231 [2024-10-31 21:59:29,144 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 21:59:29,144 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 21:59:29,144 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 21:59:29,145 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 21:59:29,158 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:29" (1/1) ... [2024-10-31 21:59:29,159 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:29" (1/1) ... [2024-10-31 21:59:29,162 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:29" (1/1) ... [2024-10-31 21:59:29,186 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-31 21:59:29,186 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:29" (1/1) ... [2024-10-31 21:59:29,186 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:29" (1/1) ... [2024-10-31 21:59:29,195 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:29" (1/1) ... [2024-10-31 21:59:29,199 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:29" (1/1) ... [2024-10-31 21:59:29,201 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:29" (1/1) ... [2024-10-31 21:59:29,202 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:29" (1/1) ... [2024-10-31 21:59:29,205 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 21:59:29,207 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 21:59:29,210 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 21:59:29,210 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 21:59:29,211 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:29" (1/1) ... [2024-10-31 21:59:29,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:59:29,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c301122a-2d74-458e-95e8-1a904f345547/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:29,273 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c301122a-2d74-458e-95e8-1a904f345547/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 21:59:29,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c301122a-2d74-458e-95e8-1a904f345547/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 21:59:29,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 21:59:29,339 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-10-31 21:59:29,339 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-10-31 21:59:29,339 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-10-31 21:59:29,339 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-10-31 21:59:29,339 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2024-10-31 21:59:29,340 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2024-10-31 21:59:29,340 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-10-31 21:59:29,340 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-10-31 21:59:29,340 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-10-31 21:59:29,340 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-10-31 21:59:29,341 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-10-31 21:59:29,341 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-10-31 21:59:29,342 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2024-10-31 21:59:29,342 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2024-10-31 21:59:29,342 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2024-10-31 21:59:29,342 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2024-10-31 21:59:29,343 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-10-31 21:59:29,344 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-10-31 21:59:29,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 21:59:29,344 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-10-31 21:59:29,344 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-10-31 21:59:29,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 21:59:29,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 21:59:29,440 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 21:59:29,444 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 21:59:29,828 INFO L? ?]: Removed 50 outVars from TransFormulas that were not future-live. [2024-10-31 21:59:29,828 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 21:59:29,850 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 21:59:29,851 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-31 21:59:29,851 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:59:29 BoogieIcfgContainer [2024-10-31 21:59:29,851 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 21:59:29,854 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 21:59:29,855 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 21:59:29,859 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 21:59:29,859 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 09:59:28" (1/3) ... [2024-10-31 21:59:29,860 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cad8867 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:59:29, skipping insertion in model container [2024-10-31 21:59:29,860 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:29" (2/3) ... [2024-10-31 21:59:29,863 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cad8867 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:59:29, skipping insertion in model container [2024-10-31 21:59:29,863 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:59:29" (3/3) ... [2024-10-31 21:59:29,865 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product64.cil.c [2024-10-31 21:59:29,889 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 21:59:29,889 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-31 21:59:29,977 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 21:59:29,985 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;@23efba6b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 21:59:29,985 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-31 21:59:29,990 INFO L276 IsEmpty]: Start isEmpty. Operand has 115 states, 84 states have (on average 1.369047619047619) internal successors, (115), 95 states have internal predecessors, (115), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (19), 14 states have call predecessors, (19), 19 states have call successors, (19) [2024-10-31 21:59:30,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-10-31 21:59:30,002 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:30,003 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:30,004 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:59:30,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:30,010 INFO L85 PathProgramCache]: Analyzing trace with hash 2099245654, now seen corresponding path program 1 times [2024-10-31 21:59:30,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:30,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81469883] [2024-10-31 21:59:30,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:30,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:30,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:30,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-31 21:59:30,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:30,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:30,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:30,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81469883] [2024-10-31 21:59:30,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81469883] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:30,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:30,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:59:30,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835516636] [2024-10-31 21:59:30,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:30,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-31 21:59:30,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:30,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 21:59:30,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 21:59:30,356 INFO L87 Difference]: Start difference. First operand has 115 states, 84 states have (on average 1.369047619047619) internal successors, (115), 95 states have internal predecessors, (115), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (19), 14 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-31 21:59:30,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:30,411 INFO L93 Difference]: Finished difference Result 221 states and 300 transitions. [2024-10-31 21:59:30,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 21:59:30,414 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2024-10-31 21:59:30,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:30,427 INFO L225 Difference]: With dead ends: 221 [2024-10-31 21:59:30,428 INFO L226 Difference]: Without dead ends: 106 [2024-10-31 21:59:30,433 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 21:59:30,439 INFO L432 NwaCegarLoop]: 147 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, 147 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:30,442 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 21:59:30,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-10-31 21:59:30,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2024-10-31 21:59:30,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 77 states have (on average 1.3116883116883118) internal successors, (101), 87 states have internal predecessors, (101), 19 states have call successors, (19), 10 states have call predecessors, (19), 9 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-31 21:59:30,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 138 transitions. [2024-10-31 21:59:30,509 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 138 transitions. Word has length 25 [2024-10-31 21:59:30,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:30,512 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 138 transitions. [2024-10-31 21:59:30,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-31 21:59:30,513 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 138 transitions. [2024-10-31 21:59:30,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-10-31 21:59:30,518 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:30,518 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:30,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 21:59:30,518 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:59:30,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:30,519 INFO L85 PathProgramCache]: Analyzing trace with hash -298822754, now seen corresponding path program 1 times [2024-10-31 21:59:30,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:30,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906948644] [2024-10-31 21:59:30,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:30,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:30,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:30,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-31 21:59:30,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:30,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:30,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:30,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906948644] [2024-10-31 21:59:30,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906948644] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:30,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:30,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 21:59:30,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775450939] [2024-10-31 21:59:30,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:30,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:59:30,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:30,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:59:30,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:59:30,735 INFO L87 Difference]: Start difference. First operand 106 states and 138 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-31 21:59:30,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:30,777 INFO L93 Difference]: Finished difference Result 172 states and 224 transitions. [2024-10-31 21:59:30,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:59:30,778 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2024-10-31 21:59:30,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:30,780 INFO L225 Difference]: With dead ends: 172 [2024-10-31 21:59:30,781 INFO L226 Difference]: Without dead ends: 97 [2024-10-31 21:59:30,782 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:59:30,784 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 17 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:30,785 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 228 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 21:59:30,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2024-10-31 21:59:30,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2024-10-31 21:59:30,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 71 states have (on average 1.323943661971831) internal successors, (94), 81 states have internal predecessors, (94), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-31 21:59:30,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 126 transitions. [2024-10-31 21:59:30,800 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 126 transitions. Word has length 26 [2024-10-31 21:59:30,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:30,801 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 126 transitions. [2024-10-31 21:59:30,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-31 21:59:30,802 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 126 transitions. [2024-10-31 21:59:30,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-10-31 21:59:30,804 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:30,804 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:30,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 21:59:30,805 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:59:30,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:30,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1504880537, now seen corresponding path program 1 times [2024-10-31 21:59:30,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:30,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989748924] [2024-10-31 21:59:30,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:30,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:30,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:30,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-31 21:59:31,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:31,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:31,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:31,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989748924] [2024-10-31 21:59:31,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989748924] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:31,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:31,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 21:59:31,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114300845] [2024-10-31 21:59:31,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:31,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 21:59:31,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:31,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 21:59:31,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:59:31,007 INFO L87 Difference]: Start difference. First operand 97 states and 126 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-31 21:59:31,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:31,116 INFO L93 Difference]: Finished difference Result 229 states and 301 transitions. [2024-10-31 21:59:31,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 21:59:31,117 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2024-10-31 21:59:31,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:31,119 INFO L225 Difference]: With dead ends: 229 [2024-10-31 21:59:31,119 INFO L226 Difference]: Without dead ends: 140 [2024-10-31 21:59:31,121 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-31 21:59:31,123 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 119 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:31,124 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 464 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 21:59:31,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2024-10-31 21:59:31,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 137. [2024-10-31 21:59:31,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 101 states have (on average 1.3465346534653466) internal successors, (136), 114 states have internal predecessors, (136), 21 states have call successors, (21), 14 states have call predecessors, (21), 14 states have return successors, (22), 15 states have call predecessors, (22), 21 states have call successors, (22) [2024-10-31 21:59:31,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 179 transitions. [2024-10-31 21:59:31,149 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 179 transitions. Word has length 31 [2024-10-31 21:59:31,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:31,150 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 179 transitions. [2024-10-31 21:59:31,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-31 21:59:31,151 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 179 transitions. [2024-10-31 21:59:31,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-10-31 21:59:31,153 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:31,153 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:31,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 21:59:31,154 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:59:31,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:31,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1902279984, now seen corresponding path program 1 times [2024-10-31 21:59:31,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:31,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943683243] [2024-10-31 21:59:31,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:31,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:31,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:31,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-31 21:59:31,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:31,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:31,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:31,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943683243] [2024-10-31 21:59:31,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943683243] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:31,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:31,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 21:59:31,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865667575] [2024-10-31 21:59:31,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:31,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 21:59:31,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:31,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 21:59:31,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:59:31,367 INFO L87 Difference]: Start difference. First operand 137 states and 179 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-31 21:59:31,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:31,508 INFO L93 Difference]: Finished difference Result 311 states and 417 transitions. [2024-10-31 21:59:31,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 21:59:31,510 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 34 [2024-10-31 21:59:31,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:31,512 INFO L225 Difference]: With dead ends: 311 [2024-10-31 21:59:31,512 INFO L226 Difference]: Without dead ends: 182 [2024-10-31 21:59:31,517 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-31 21:59:31,519 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 67 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:31,519 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 435 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 21:59:31,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2024-10-31 21:59:31,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 181. [2024-10-31 21:59:31,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 134 states have (on average 1.2761194029850746) internal successors, (171), 146 states have internal predecessors, (171), 25 states have call successors, (25), 21 states have call predecessors, (25), 21 states have return successors, (33), 23 states have call predecessors, (33), 25 states have call successors, (33) [2024-10-31 21:59:31,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 229 transitions. [2024-10-31 21:59:31,566 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 229 transitions. Word has length 34 [2024-10-31 21:59:31,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:31,566 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 229 transitions. [2024-10-31 21:59:31,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-31 21:59:31,567 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 229 transitions. [2024-10-31 21:59:31,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-31 21:59:31,575 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:31,575 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:31,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 21:59:31,575 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:59:31,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:31,576 INFO L85 PathProgramCache]: Analyzing trace with hash 269763792, now seen corresponding path program 1 times [2024-10-31 21:59:31,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:31,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145036490] [2024-10-31 21:59:31,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:31,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:31,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:31,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-31 21:59:31,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:31,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 21:59:31,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:31,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 21:59:31,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:31,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 21:59:31,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:31,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-31 21:59:31,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:31,894 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-31 21:59:31,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:31,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145036490] [2024-10-31 21:59:31,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145036490] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:31,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:31,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 21:59:31,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247824859] [2024-10-31 21:59:31,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:31,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 21:59:31,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:31,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 21:59:31,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-31 21:59:31,901 INFO L87 Difference]: Start difference. First operand 181 states and 229 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-31 21:59:32,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:32,176 INFO L93 Difference]: Finished difference Result 386 states and 502 transitions. [2024-10-31 21:59:32,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 21:59:32,177 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 62 [2024-10-31 21:59:32,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:32,180 INFO L225 Difference]: With dead ends: 386 [2024-10-31 21:59:32,180 INFO L226 Difference]: Without dead ends: 213 [2024-10-31 21:59:32,181 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-31 21:59:32,182 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 68 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:32,183 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 411 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 21:59:32,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2024-10-31 21:59:32,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 211. [2024-10-31 21:59:32,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 157 states have (on average 1.2611464968152866) internal successors, (198), 169 states have internal predecessors, (198), 27 states have call successors, (27), 21 states have call predecessors, (27), 26 states have return successors, (40), 29 states have call predecessors, (40), 27 states have call successors, (40) [2024-10-31 21:59:32,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 265 transitions. [2024-10-31 21:59:32,209 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 265 transitions. Word has length 62 [2024-10-31 21:59:32,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:32,210 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 265 transitions. [2024-10-31 21:59:32,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-31 21:59:32,210 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 265 transitions. [2024-10-31 21:59:32,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-10-31 21:59:32,213 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:32,213 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:32,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 21:59:32,213 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:59:32,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:32,214 INFO L85 PathProgramCache]: Analyzing trace with hash -541555383, now seen corresponding path program 1 times [2024-10-31 21:59:32,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:32,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157970106] [2024-10-31 21:59:32,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:32,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:32,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:32,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-31 21:59:32,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:32,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 21:59:32,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:32,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 21:59:32,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:32,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 21:59:32,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:32,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-31 21:59:32,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:32,391 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-31 21:59:32,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:32,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157970106] [2024-10-31 21:59:32,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157970106] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:32,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:32,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 21:59:32,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269181312] [2024-10-31 21:59:32,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:32,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 21:59:32,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:32,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 21:59:32,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-31 21:59:32,394 INFO L87 Difference]: Start difference. First operand 211 states and 265 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-31 21:59:32,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:32,715 INFO L93 Difference]: Finished difference Result 420 states and 540 transitions. [2024-10-31 21:59:32,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 21:59:32,716 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 65 [2024-10-31 21:59:32,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:32,718 INFO L225 Difference]: With dead ends: 420 [2024-10-31 21:59:32,719 INFO L226 Difference]: Without dead ends: 217 [2024-10-31 21:59:32,720 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-31 21:59:32,725 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 109 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:32,728 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 484 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 21:59:32,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2024-10-31 21:59:32,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 213. [2024-10-31 21:59:32,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 159 states have (on average 1.251572327044025) internal successors, (199), 171 states have internal predecessors, (199), 27 states have call successors, (27), 21 states have call predecessors, (27), 26 states have return successors, (38), 29 states have call predecessors, (38), 27 states have call successors, (38) [2024-10-31 21:59:32,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 264 transitions. [2024-10-31 21:59:32,779 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 264 transitions. Word has length 65 [2024-10-31 21:59:32,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:32,781 INFO L471 AbstractCegarLoop]: Abstraction has 213 states and 264 transitions. [2024-10-31 21:59:32,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-31 21:59:32,782 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 264 transitions. [2024-10-31 21:59:32,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-31 21:59:32,787 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:32,787 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:32,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 21:59:32,788 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:59:32,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:32,789 INFO L85 PathProgramCache]: Analyzing trace with hash -646628268, now seen corresponding path program 1 times [2024-10-31 21:59:32,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:32,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254919169] [2024-10-31 21:59:32,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:32,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:32,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:32,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-31 21:59:32,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:32,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 21:59:32,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:33,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 21:59:33,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:33,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 21:59:33,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:33,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-31 21:59:33,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:33,017 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-31 21:59:33,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:33,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254919169] [2024-10-31 21:59:33,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254919169] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:33,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:33,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 21:59:33,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556739834] [2024-10-31 21:59:33,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:33,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 21:59:33,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:33,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 21:59:33,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:59:33,020 INFO L87 Difference]: Start difference. First operand 213 states and 264 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-10-31 21:59:33,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:33,395 INFO L93 Difference]: Finished difference Result 621 states and 797 transitions. [2024-10-31 21:59:33,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 21:59:33,396 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 62 [2024-10-31 21:59:33,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:33,399 INFO L225 Difference]: With dead ends: 621 [2024-10-31 21:59:33,399 INFO L226 Difference]: Without dead ends: 416 [2024-10-31 21:59:33,400 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-31 21:59:33,401 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 250 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:33,402 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 344 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-31 21:59:33,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2024-10-31 21:59:33,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 414. [2024-10-31 21:59:33,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 310 states have (on average 1.229032258064516) internal successors, (381), 330 states have internal predecessors, (381), 53 states have call successors, (53), 48 states have call predecessors, (53), 50 states have return successors, (80), 53 states have call predecessors, (80), 53 states have call successors, (80) [2024-10-31 21:59:33,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 514 transitions. [2024-10-31 21:59:33,450 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 514 transitions. Word has length 62 [2024-10-31 21:59:33,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:33,451 INFO L471 AbstractCegarLoop]: Abstraction has 414 states and 514 transitions. [2024-10-31 21:59:33,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-10-31 21:59:33,452 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 514 transitions. [2024-10-31 21:59:33,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-31 21:59:33,454 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:33,454 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:33,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 21:59:33,458 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:59:33,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:33,459 INFO L85 PathProgramCache]: Analyzing trace with hash -938683346, now seen corresponding path program 1 times [2024-10-31 21:59:33,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:33,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118701284] [2024-10-31 21:59:33,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:33,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:33,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:33,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-31 21:59:33,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:33,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-31 21:59:33,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:33,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 21:59:33,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:33,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 21:59:33,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:33,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 21:59:33,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:33,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-31 21:59:33,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:33,856 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-31 21:59:33,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:33,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118701284] [2024-10-31 21:59:33,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118701284] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:33,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:33,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-31 21:59:33,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672608604] [2024-10-31 21:59:33,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:33,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-31 21:59:33,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:33,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-31 21:59:33,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-10-31 21:59:33,861 INFO L87 Difference]: Start difference. First operand 414 states and 514 transitions. Second operand has 12 states, 12 states have (on average 4.25) internal successors, (51), 7 states have internal predecessors, (51), 2 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-31 21:59:35,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:35,116 INFO L93 Difference]: Finished difference Result 1287 states and 1665 transitions. [2024-10-31 21:59:35,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-10-31 21:59:35,117 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 7 states have internal predecessors, (51), 2 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6) Word has length 66 [2024-10-31 21:59:35,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:35,123 INFO L225 Difference]: With dead ends: 1287 [2024-10-31 21:59:35,123 INFO L226 Difference]: Without dead ends: 881 [2024-10-31 21:59:35,125 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=208, Invalid=784, Unknown=0, NotChecked=0, Total=992 [2024-10-31 21:59:35,125 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 546 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 729 mSolverCounterSat, 244 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 554 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 244 IncrementalHoareTripleChecker+Valid, 729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:35,126 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [554 Valid, 529 Invalid, 973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [244 Valid, 729 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-31 21:59:35,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2024-10-31 21:59:35,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 861. [2024-10-31 21:59:35,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 861 states, 634 states have (on average 1.1987381703470033) internal successors, (760), 682 states have internal predecessors, (760), 119 states have call successors, (119), 94 states have call predecessors, (119), 107 states have return successors, (203), 118 states have call predecessors, (203), 119 states have call successors, (203) [2024-10-31 21:59:35,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1082 transitions. [2024-10-31 21:59:35,236 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1082 transitions. Word has length 66 [2024-10-31 21:59:35,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:35,237 INFO L471 AbstractCegarLoop]: Abstraction has 861 states and 1082 transitions. [2024-10-31 21:59:35,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 7 states have internal predecessors, (51), 2 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-31 21:59:35,237 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1082 transitions. [2024-10-31 21:59:35,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-10-31 21:59:35,241 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:35,242 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:35,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 21:59:35,242 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:59:35,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:35,243 INFO L85 PathProgramCache]: Analyzing trace with hash 37906976, now seen corresponding path program 1 times [2024-10-31 21:59:35,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:35,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912030377] [2024-10-31 21:59:35,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:35,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:35,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:35,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-31 21:59:35,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:35,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-31 21:59:35,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:35,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-31 21:59:35,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:35,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 21:59:35,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:35,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 21:59:35,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:35,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 21:59:35,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:35,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 21:59:35,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:35,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-31 21:59:35,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:35,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-31 21:59:35,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:35,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-31 21:59:35,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:35,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 21:59:35,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:35,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-31 21:59:35,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:35,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 21:59:35,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:35,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 21:59:35,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:35,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-31 21:59:35,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:35,771 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 19 proven. 15 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-10-31 21:59:35,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:35,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912030377] [2024-10-31 21:59:35,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912030377] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:59:35,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [10424160] [2024-10-31 21:59:35,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:35,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:35,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c301122a-2d74-458e-95e8-1a904f345547/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:35,775 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c301122a-2d74-458e-95e8-1a904f345547/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:59:35,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c301122a-2d74-458e-95e8-1a904f345547/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 21:59:35,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:35,914 INFO L255 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-31 21:59:35,929 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:59:36,217 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-31 21:59:36,218 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 21:59:36,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [10424160] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:36,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 21:59:36,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [16] total 21 [2024-10-31 21:59:36,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513363008] [2024-10-31 21:59:36,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:36,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-31 21:59:36,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:36,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-31 21:59:36,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2024-10-31 21:59:36,221 INFO L87 Difference]: Start difference. First operand 861 states and 1082 transitions. Second operand has 8 states, 8 states have (on average 11.125) internal successors, (89), 6 states have internal predecessors, (89), 3 states have call successors, (15), 3 states have call predecessors, (15), 5 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-31 21:59:36,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:36,550 INFO L93 Difference]: Finished difference Result 1714 states and 2156 transitions. [2024-10-31 21:59:36,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 21:59:36,551 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 6 states have internal predecessors, (89), 3 states have call successors, (15), 3 states have call predecessors, (15), 5 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) Word has length 129 [2024-10-31 21:59:36,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:36,558 INFO L225 Difference]: With dead ends: 1714 [2024-10-31 21:59:36,558 INFO L226 Difference]: Without dead ends: 861 [2024-10-31 21:59:36,561 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2024-10-31 21:59:36,562 INFO L432 NwaCegarLoop]: 227 mSDtfsCounter, 81 mSDsluCounter, 1059 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 1286 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:36,562 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 1286 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 21:59:36,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2024-10-31 21:59:36,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 861. [2024-10-31 21:59:36,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 861 states, 634 states have (on average 1.1845425867507886) internal successors, (751), 682 states have internal predecessors, (751), 119 states have call successors, (119), 94 states have call predecessors, (119), 107 states have return successors, (181), 118 states have call predecessors, (181), 119 states have call successors, (181) [2024-10-31 21:59:36,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1051 transitions. [2024-10-31 21:59:36,662 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1051 transitions. Word has length 129 [2024-10-31 21:59:36,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:36,663 INFO L471 AbstractCegarLoop]: Abstraction has 861 states and 1051 transitions. [2024-10-31 21:59:36,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 6 states have internal predecessors, (89), 3 states have call successors, (15), 3 states have call predecessors, (15), 5 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-31 21:59:36,663 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1051 transitions. [2024-10-31 21:59:36,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-31 21:59:36,667 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:36,667 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:36,690 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c301122a-2d74-458e-95e8-1a904f345547/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-31 21:59:36,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c301122a-2d74-458e-95e8-1a904f345547/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:36,868 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:59:36,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:36,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1166861276, now seen corresponding path program 1 times [2024-10-31 21:59:36,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:36,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564352675] [2024-10-31 21:59:36,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:36,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:36,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:37,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-31 21:59:37,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:37,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-31 21:59:37,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:37,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 21:59:37,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:37,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 21:59:37,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:37,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 21:59:37,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:37,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 21:59:37,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:37,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-31 21:59:37,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:37,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-31 21:59:37,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:37,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-31 21:59:37,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:37,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 21:59:37,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:37,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-31 21:59:37,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:37,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 21:59:37,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:37,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 21:59:37,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:37,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-31 21:59:37,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:37,303 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-31 21:59:37,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:37,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564352675] [2024-10-31 21:59:37,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564352675] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:59:37,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [769235675] [2024-10-31 21:59:37,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:37,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:37,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c301122a-2d74-458e-95e8-1a904f345547/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:37,306 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c301122a-2d74-458e-95e8-1a904f345547/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:59:37,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c301122a-2d74-458e-95e8-1a904f345547/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-31 21:59:37,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:37,460 INFO L255 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-31 21:59:37,465 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:59:37,654 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-31 21:59:37,654 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 21:59:37,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [769235675] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:37,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 21:59:37,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [15] total 20 [2024-10-31 21:59:37,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008913416] [2024-10-31 21:59:37,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:37,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-31 21:59:37,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:37,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-31 21:59:37,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2024-10-31 21:59:37,657 INFO L87 Difference]: Start difference. First operand 861 states and 1051 transitions. Second operand has 8 states, 8 states have (on average 11.25) internal successors, (90), 6 states have internal predecessors, (90), 3 states have call successors, (15), 3 states have call predecessors, (15), 5 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-31 21:59:37,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:37,899 INFO L93 Difference]: Finished difference Result 1472 states and 1819 transitions. [2024-10-31 21:59:37,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 21:59:37,900 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 6 states have internal predecessors, (90), 3 states have call successors, (15), 3 states have call predecessors, (15), 5 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) Word has length 125 [2024-10-31 21:59:37,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:37,902 INFO L225 Difference]: With dead ends: 1472 [2024-10-31 21:59:37,902 INFO L226 Difference]: Without dead ends: 0 [2024-10-31 21:59:37,906 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2024-10-31 21:59:37,907 INFO L432 NwaCegarLoop]: 205 mSDtfsCounter, 70 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 907 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:37,908 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 907 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 21:59:37,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-31 21:59:37,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-31 21:59:37,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:37,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-31 21:59:37,911 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 125 [2024-10-31 21:59:37,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:37,911 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 21:59:37,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 6 states have internal predecessors, (90), 3 states have call successors, (15), 3 states have call predecessors, (15), 5 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-31 21:59:37,912 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-31 21:59:37,912 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-31 21:59:37,915 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-31 21:59:37,935 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c301122a-2d74-458e-95e8-1a904f345547/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-31 21:59:38,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c301122a-2d74-458e-95e8-1a904f345547/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-31 21:59:38,119 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:38,121 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-31 21:59:42,869 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-10-31 21:59:42,889 WARN L156 FloydHoareUtils]: Requires clause for deactivatePump contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse0 (not (= 0 ~systemActive~0)))) (or (and (= ~methaneLevelCritical~0 0) .cse0) (and (<= 1 ~methaneLevelCritical~0) .cse0)))) Eliminated clause: (let ((.cse0 (not (= 0 ~systemActive~0)))) (or (and (= ~methaneLevelCritical~0 0) .cse0) (and (<= 1 ~methaneLevelCritical~0) .cse0))) [2024-10-31 21:59:42,912 WARN L156 FloydHoareUtils]: Requires clause for changeMethaneLevel contained old-variable. Original clause: (let ((.cse1 (= |old(~methaneLevelCritical~0)| 0))) (and (or (<= 1 ~methaneLevelCritical~0) (< |old(~methaneLevelCritical~0)| 1)) (let ((.cse0 (= ~pumpRunning~0 0))) (or (and .cse0 .cse1) (and .cse0 (<= 1 |old(~methaneLevelCritical~0)|)) (and .cse1 (not (= 0 ~systemActive~0))))) (or (not .cse1) (= ~methaneLevelCritical~0 0)))) Eliminated clause: (exists ((|old(~methaneLevelCritical~0)| Int)) (let ((.cse1 (= |old(~methaneLevelCritical~0)| 0))) (and (let ((.cse0 (= ~pumpRunning~0 0))) (or (and .cse0 .cse1) (and .cse0 (<= 1 |old(~methaneLevelCritical~0)|)) (and .cse1 (not (= 0 ~systemActive~0))))) (or (< |old(~methaneLevelCritical~0)| 1) (< 0 ~methaneLevelCritical~0)) (or (not .cse1) (= ~methaneLevelCritical~0 0))))) [2024-10-31 21:59:42,921 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-31 21:59:42,938 WARN L156 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (or (<= 1 ~methaneLevelCritical~0) (= ~methaneLevelCritical~0 0)) (or (= ~pumpRunning~0 0) (not (= 0 ~systemActive~0))) (= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (and (or (= ~pumpRunning~0 0) (not (= 0 ~systemActive~0))) (or (= ~methaneLevelCritical~0 0) (< 0 ~methaneLevelCritical~0))) [2024-10-31 21:59:42,954 WARN L156 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__highWaterSensor contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse0 (not (= 0 ~systemActive~0)))) (or (and (= ~methaneLevelCritical~0 0) .cse0) (and (<= 1 ~methaneLevelCritical~0) (= |old(~pumpRunning~0)| 0) .cse0)))) Eliminated clause: (let ((.cse0 (not (= 0 ~systemActive~0)))) (or (and (= ~methaneLevelCritical~0 0) .cse0) (and (= ~pumpRunning~0 0) (<= 1 ~methaneLevelCritical~0) .cse0))) [2024-10-31 21:59:42,966 WARN L156 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (and (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ~methaneLevelCritical~0 0))) (or (and .cse0 (<= 1 ~methaneLevelCritical~0)) (and .cse1 (not (= 0 ~systemActive~0))) (and .cse0 .cse1))) (= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ~methaneLevelCritical~0 0))) (or (and .cse0 (<= 1 ~methaneLevelCritical~0)) (and .cse1 (not (= 0 ~systemActive~0))) (and .cse0 .cse1))) [2024-10-31 21:59:42,976 WARN L156 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__methaneQuery contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse0 (not (= 0 ~systemActive~0)))) (or (and (= ~methaneLevelCritical~0 0) .cse0) (and (<= 1 ~methaneLevelCritical~0) (= |old(~pumpRunning~0)| 0) .cse0)))) Eliminated clause: (let ((.cse0 (not (= 0 ~systemActive~0)))) (or (and (= ~methaneLevelCritical~0 0) .cse0) (and (= ~pumpRunning~0 0) (<= 1 ~methaneLevelCritical~0) .cse0))) [2024-10-31 21:59:42,985 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.10 09:59:42 BoogieIcfgContainer [2024-10-31 21:59:42,987 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-31 21:59:42,988 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 21:59:42,988 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 21:59:42,988 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 21:59:42,989 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:59:29" (3/4) ... [2024-10-31 21:59:42,992 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-10-31 21:59:42,999 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-10-31 21:59:42,999 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-10-31 21:59:42,999 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-10-31 21:59:42,999 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-10-31 21:59:42,999 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2024-10-31 21:59:43,000 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-10-31 21:59:43,000 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-10-31 21:59:43,000 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-10-31 21:59:43,000 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2024-10-31 21:59:43,000 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2024-10-31 21:59:43,010 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2024-10-31 21:59:43,011 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-10-31 21:59:43,012 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-31 21:59:43,012 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-31 21:59:43,013 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-31 21:59:43,165 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c301122a-2d74-458e-95e8-1a904f345547/bin/uautomizer-verify-4GaUIPS5ZU/witness.graphml [2024-10-31 21:59:43,165 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c301122a-2d74-458e-95e8-1a904f345547/bin/uautomizer-verify-4GaUIPS5ZU/witness.yml [2024-10-31 21:59:43,165 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 21:59:43,166 INFO L158 Benchmark]: Toolchain (without parser) took 14944.77ms. Allocated memory was 153.1MB in the beginning and 222.3MB in the end (delta: 69.2MB). Free memory was 107.9MB in the beginning and 119.8MB in the end (delta: -11.9MB). Peak memory consumption was 59.9MB. Max. memory is 16.1GB. [2024-10-31 21:59:43,166 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 117.4MB. Free memory is still 76.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 21:59:43,166 INFO L158 Benchmark]: CACSL2BoogieTranslator took 849.82ms. Allocated memory is still 153.1MB. Free memory was 107.6MB in the beginning and 85.7MB in the end (delta: 21.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-31 21:59:43,166 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.82ms. Allocated memory is still 153.1MB. Free memory was 85.4MB in the beginning and 82.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 21:59:43,167 INFO L158 Benchmark]: Boogie Preprocessor took 61.23ms. Allocated memory is still 153.1MB. Free memory was 82.9MB in the beginning and 80.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 21:59:43,167 INFO L158 Benchmark]: RCFGBuilder took 644.71ms. Allocated memory is still 153.1MB. Free memory was 80.4MB in the beginning and 106.4MB in the end (delta: -26.0MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. [2024-10-31 21:59:43,168 INFO L158 Benchmark]: TraceAbstraction took 13132.97ms. Allocated memory was 153.1MB in the beginning and 222.3MB in the end (delta: 69.2MB). Free memory was 105.8MB in the beginning and 128.1MB in the end (delta: -22.3MB). Peak memory consumption was 117.1MB. Max. memory is 16.1GB. [2024-10-31 21:59:43,169 INFO L158 Benchmark]: Witness Printer took 177.36ms. Allocated memory is still 222.3MB. Free memory was 128.1MB in the beginning and 119.8MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-31 21:59:43,171 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 117.4MB. Free memory is still 76.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 849.82ms. Allocated memory is still 153.1MB. Free memory was 107.6MB in the beginning and 85.7MB in the end (delta: 21.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.82ms. Allocated memory is still 153.1MB. Free memory was 85.4MB in the beginning and 82.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.23ms. Allocated memory is still 153.1MB. Free memory was 82.9MB in the beginning and 80.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 644.71ms. Allocated memory is still 153.1MB. Free memory was 80.4MB in the beginning and 106.4MB in the end (delta: -26.0MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. * TraceAbstraction took 13132.97ms. Allocated memory was 153.1MB in the beginning and 222.3MB in the end (delta: 69.2MB). Free memory was 105.8MB in the beginning and 128.1MB in the end (delta: -22.3MB). Peak memory consumption was 117.1MB. Max. memory is 16.1GB. * Witness Printer took 177.36ms. Allocated memory is still 222.3MB. Free memory was 128.1MB in the beginning and 119.8MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [87] - GenericResultAtLocation [Line: 363]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [363] - GenericResultAtLocation [Line: 435]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [435] - GenericResultAtLocation [Line: 444]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [444] - GenericResultAtLocation [Line: 483]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [483] - GenericResultAtLocation [Line: 587]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [587] - GenericResultAtLocation [Line: 684]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [684] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 440]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 115 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.2s, OverallIterations: 10, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1367 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1327 mSDsluCounter, 5235 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3855 mSDsCounter, 375 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1636 IncrementalHoareTripleChecker+Invalid, 2011 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 375 mSolverCounterUnsat, 1380 mSDtfsCounter, 1636 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 469 GetRequests, 369 SyntacticMatches, 1 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=861occurred in iteration=8, InterpolantAutomatonStates: 76, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 10 MinimizatonAttempts, 32 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 879 NumberOfCodeBlocks, 879 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 867 ConstructedInterpolants, 0 QuantifiedInterpolants, 1438 SizeOfPredicates, 1 NumberOfNonLiveVariables, 786 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 12 InterpolantComputations, 10 PerfectInterpolantSequences, 198/216 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 377]: Loop Invariant Derived loop invariant: (((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (splverifierCounter == 0)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (splverifierCounter == 0))) || (((methaneLevelCritical == 0) && (splverifierCounter == 0)) && (0 != systemActive))) - InvariantResult [Line: 599]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 376]: Location Invariant Derived location invariant: 0 - ProcedureContractResult [Line: 238]: Procedure Contract for deactivatePump Derived contract for procedure deactivatePump. Requires: (((methaneLevelCritical == 0) && (0 != systemActive)) || ((1 <= methaneLevelCritical) && (0 != systemActive))) Ensures: (((pumpRunning == 0) && (((methaneLevelCritical == 0) && (0 != systemActive)) || ((1 <= methaneLevelCritical) && (0 != systemActive)))) && ((((((systemActive == \old(systemActive)) && (methAndRunningLastTime == \old(methAndRunningLastTime))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) - ProcedureContractResult [Line: 128]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: (((methaneLevelCritical == 0) && (0 != systemActive)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (0 != systemActive))) Ensures: ((((methaneLevelCritical == 0) && (0 != systemActive)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (0 != systemActive))) && (((((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (methAndRunningLastTime == \old(methAndRunningLastTime))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) - ProcedureContractResult [Line: 511]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Ensures: (((((((pumpRunning == 0) && (\old(methaneLevelCritical) == 0)) || ((pumpRunning == 0) && (1 <= \old(methaneLevelCritical)))) || ((\old(methaneLevelCritical) == 0) && (0 != systemActive))) && ((\old(methaneLevelCritical) != 0) || (0 < methaneLevelCritical))) && ((methaneLevelCritical == 0) || (\old(methaneLevelCritical) < 1))) && ((((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (methAndRunningLastTime == \old(methAndRunningLastTime))) && (waterLevel == \old(waterLevel))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) - ProcedureContractResult [Line: 589]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: (0 && ((((systemActive == \old(systemActive)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) - ProcedureContractResult [Line: 523]: Procedure Contract for isMethaneLevelCritical Derived contract for procedure isMethaneLevelCritical. Requires: (((((pumpRunning == 0) && (1 <= methaneLevelCritical)) || ((methaneLevelCritical == 0) && (0 != systemActive))) || ((1 <= methaneLevelCritical) && (0 != systemActive))) || ((pumpRunning == 0) && (methaneLevelCritical == 0))) Ensures: (((\result == methaneLevelCritical) && (((((pumpRunning == 0) && (1 <= methaneLevelCritical)) || ((methaneLevelCritical == 0) && (0 != systemActive))) || ((1 <= methaneLevelCritical) && (0 != systemActive))) || ((pumpRunning == 0) && (methaneLevelCritical == 0)))) && (((((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (methAndRunningLastTime == \old(methAndRunningLastTime))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) - ProcedureContractResult [Line: 104]: Procedure Contract for timeShift Derived contract for procedure timeShift. Requires: (((pumpRunning == 0) || (0 != systemActive)) && ((methaneLevelCritical == 0) || (0 < methaneLevelCritical))) Ensures: ((((((((((methaneLevelCritical == 0) && (0 != systemActive)) || ((methaneLevelCritical == 0) && (\old(pumpRunning) == 0))) || ((1 <= methaneLevelCritical) && (\old(pumpRunning) == 0))) || ((1 <= methaneLevelCritical) && (0 != systemActive))) && (((pumpRunning == \old(pumpRunning)) || (pumpRunning == 0)) || (1 < waterLevel))) && ((pumpRunning == 0) || (methaneLevelCritical < 1))) && ((pumpRunning == 0) || (0 != systemActive))) && ((\old(pumpRunning) != 0) || (\old(waterLevel) == waterLevel))) && ((((systemActive == \old(systemActive)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) - ProcedureContractResult [Line: 136]: Procedure Contract for processEnvironment__wrappee__highWaterSensor Derived contract for procedure processEnvironment__wrappee__highWaterSensor. Requires: (((methaneLevelCritical == 0) && (0 != systemActive)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (0 != systemActive))) Ensures: ((((((methaneLevelCritical == 0) && (0 != systemActive)) || (((1 <= methaneLevelCritical) && (\old(pumpRunning) == 0)) && (0 != systemActive))) && ((pumpRunning == 0) || (methaneLevelCritical < 1))) && ((pumpRunning == \old(pumpRunning)) || (1 < waterLevel))) && ((((((systemActive == \old(systemActive)) && (methAndRunningLastTime == \old(methAndRunningLastTime))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) - ProcedureContractResult [Line: 499]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: ((((pumpRunning == 0) && (1 <= methaneLevelCritical)) || ((methaneLevelCritical == 0) && (0 != systemActive))) || ((pumpRunning == 0) && (methaneLevelCritical == 0))) Ensures: (((((((pumpRunning == 0) && (1 <= methaneLevelCritical)) || ((methaneLevelCritical == 0) && (0 != systemActive))) || ((pumpRunning == 0) && (methaneLevelCritical == 0))) && (((pumpRunning != 0) || (\old(waterLevel) != 1)) || (1 < waterLevel))) && ((\old(waterLevel) < 2) || (\old(waterLevel) == waterLevel))) && ((((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (methAndRunningLastTime == \old(methAndRunningLastTime))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) - ProcedureContractResult [Line: 162]: Procedure Contract for processEnvironment__wrappee__methaneQuery Derived contract for procedure processEnvironment__wrappee__methaneQuery. Requires: (((methaneLevelCritical == 0) && (0 != systemActive)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (0 != systemActive))) Ensures: ((((((methaneLevelCritical == 0) && (0 != systemActive)) || (((1 <= methaneLevelCritical) && (\old(pumpRunning) == 0)) && (0 != systemActive))) && (((pumpRunning == \old(pumpRunning)) || (pumpRunning == 0)) || (1 < waterLevel))) && ((pumpRunning == 0) || (methaneLevelCritical < 1))) && ((((((systemActive == \old(systemActive)) && (methAndRunningLastTime == \old(methAndRunningLastTime))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) - ProcedureContractResult [Line: 246]: Procedure Contract for isMethaneAlarm Derived contract for procedure isMethaneAlarm. Requires: (((methaneLevelCritical == 0) && (0 != systemActive)) || ((1 <= methaneLevelCritical) && (0 != systemActive))) Ensures: (((((methaneLevelCritical == 0) && (0 != systemActive)) || ((1 <= methaneLevelCritical) && (0 != systemActive))) && (\result == methaneLevelCritical)) && (((((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (methAndRunningLastTime == \old(methAndRunningLastTime))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) RESULT: Ultimate proved your program to be correct! [2024-10-31 21:59:43,219 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c301122a-2d74-458e-95e8-1a904f345547/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE