./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product63.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc3fffc0-4ce3-47a0-895d-d5beb25bf19f/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc3fffc0-4ce3-47a0-895d-d5beb25bf19f/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc3fffc0-4ce3-47a0-895d-d5beb25bf19f/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc3fffc0-4ce3-47a0-895d-d5beb25bf19f/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product63.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc3fffc0-4ce3-47a0-895d-d5beb25bf19f/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc3fffc0-4ce3-47a0-895d-d5beb25bf19f/bin/uautomizer-verify-VRDe98Ueme --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 bff509ff7af2b9788fd6216f7196709183d48c973cf9a066c9793f96467b2abf --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:44:57,354 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:44:57,486 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc3fffc0-4ce3-47a0-895d-d5beb25bf19f/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-26 11:44:57,499 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:44:57,500 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:44:57,566 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:44:57,575 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:44:57,576 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:44:57,577 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:44:57,585 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:44:57,586 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:44:57,587 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:44:57,587 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:44:57,590 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:44:57,590 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:44:57,591 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:44:57,591 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:44:57,592 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:44:57,592 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:44:57,593 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:44:57,593 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:44:57,594 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:44:57,595 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:44:57,595 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:44:57,595 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:44:57,596 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:44:57,596 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:44:57,597 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:44:57,598 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:44:57,598 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:44:57,600 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:44:57,600 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:44:57,600 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:44:57,601 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:44:57,601 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:44:57,601 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:44:57,602 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:44:57,602 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:44:57,602 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:44:57,603 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:44:57,603 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:44:57,603 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:44:57,603 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_bc3fffc0-4ce3-47a0-895d-d5beb25bf19f/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc3fffc0-4ce3-47a0-895d-d5beb25bf19f/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bff509ff7af2b9788fd6216f7196709183d48c973cf9a066c9793f96467b2abf [2023-11-26 11:44:57,974 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:44:58,010 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:44:58,013 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:44:58,015 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:44:58,015 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:44:58,017 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc3fffc0-4ce3-47a0-895d-d5beb25bf19f/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/product-lines/minepump_spec2_product63.cil.c [2023-11-26 11:45:01,080 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:45:01,388 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:45:01,389 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc3fffc0-4ce3-47a0-895d-d5beb25bf19f/sv-benchmarks/c/product-lines/minepump_spec2_product63.cil.c [2023-11-26 11:45:01,407 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc3fffc0-4ce3-47a0-895d-d5beb25bf19f/bin/uautomizer-verify-VRDe98Ueme/data/27532b051/95909eb9052e47adba15b4623bad1fb4/FLAGe02d91b87 [2023-11-26 11:45:01,436 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc3fffc0-4ce3-47a0-895d-d5beb25bf19f/bin/uautomizer-verify-VRDe98Ueme/data/27532b051/95909eb9052e47adba15b4623bad1fb4 [2023-11-26 11:45:01,439 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:45:01,440 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:45:01,442 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:45:01,442 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:45:01,448 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:45:01,449 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:45:01" (1/1) ... [2023-11-26 11:45:01,450 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3edc6ae0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:45:01, skipping insertion in model container [2023-11-26 11:45:01,451 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:45:01" (1/1) ... [2023-11-26 11:45:01,537 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:45:01,725 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc3fffc0-4ce3-47a0-895d-d5beb25bf19f/sv-benchmarks/c/product-lines/minepump_spec2_product63.cil.c[2985,2998] [2023-11-26 11:45:01,890 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:45:01,914 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:45:01,925 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [49] [2023-11-26 11:45:01,927 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [155] [2023-11-26 11:45:01,927 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [164] [2023-11-26 11:45:01,927 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [205] [2023-11-26 11:45:01,928 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [313] [2023-11-26 11:45:01,928 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [381] [2023-11-26 11:45:01,928 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [638] [2023-11-26 11:45:01,928 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [673] [2023-11-26 11:45:01,937 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc3fffc0-4ce3-47a0-895d-d5beb25bf19f/sv-benchmarks/c/product-lines/minepump_spec2_product63.cil.c[2985,2998] [2023-11-26 11:45:02,007 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:45:02,045 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:45:02,045 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:45:02 WrapperNode [2023-11-26 11:45:02,045 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:45:02,046 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:45:02,046 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:45:02,046 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:45:02,053 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:45:02" (1/1) ... [2023-11-26 11:45:02,069 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:45:02" (1/1) ... [2023-11-26 11:45:02,102 INFO L138 Inliner]: procedures = 59, calls = 107, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 228 [2023-11-26 11:45:02,104 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:45:02,105 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:45:02,105 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:45:02,106 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:45:02,119 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:45:02" (1/1) ... [2023-11-26 11:45:02,119 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:45:02" (1/1) ... [2023-11-26 11:45:02,122 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:45:02" (1/1) ... [2023-11-26 11:45:02,162 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-26 11:45:02,162 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:45:02" (1/1) ... [2023-11-26 11:45:02,163 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:45:02" (1/1) ... [2023-11-26 11:45:02,170 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:45:02" (1/1) ... [2023-11-26 11:45:02,179 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:45:02" (1/1) ... [2023-11-26 11:45:02,210 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:45:02" (1/1) ... [2023-11-26 11:45:02,212 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:45:02" (1/1) ... [2023-11-26 11:45:02,215 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:45:02,216 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:45:02,216 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:45:02,216 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:45:02,217 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:45:02" (1/1) ... [2023-11-26 11:45:02,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:45:02,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc3fffc0-4ce3-47a0-895d-d5beb25bf19f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:45:02,266 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc3fffc0-4ce3-47a0-895d-d5beb25bf19f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:45:02,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc3fffc0-4ce3-47a0-895d-d5beb25bf19f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:45:02,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:45:02,324 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-11-26 11:45:02,325 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-11-26 11:45:02,325 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-11-26 11:45:02,325 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-11-26 11:45:02,325 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-26 11:45:02,325 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-26 11:45:02,326 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-26 11:45:02,326 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-26 11:45:02,326 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-11-26 11:45:02,326 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-11-26 11:45:02,327 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-26 11:45:02,327 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-26 11:45:02,327 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2023-11-26 11:45:02,327 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2023-11-26 11:45:02,328 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-11-26 11:45:02,328 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-11-26 11:45:02,329 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-11-26 11:45:02,329 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-11-26 11:45:02,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 11:45:02,332 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-26 11:45:02,335 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-26 11:45:02,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:45:02,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:45:02,486 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:45:02,489 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:45:02,893 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:45:02,966 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:45:02,966 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-26 11:45:02,967 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:45:02 BoogieIcfgContainer [2023-11-26 11:45:02,967 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:45:02,970 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:45:02,970 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:45:02,974 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:45:02,975 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:45:01" (1/3) ... [2023-11-26 11:45:02,975 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4265868b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:45:02, skipping insertion in model container [2023-11-26 11:45:02,976 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:45:02" (2/3) ... [2023-11-26 11:45:02,976 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4265868b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:45:02, skipping insertion in model container [2023-11-26 11:45:02,976 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:45:02" (3/3) ... [2023-11-26 11:45:02,978 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product63.cil.c [2023-11-26 11:45:03,000 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:45:03,001 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 11:45:03,060 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:45:03,067 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@724f6a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:45:03,067 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 11:45:03,072 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 61 states have (on average 1.5081967213114753) internal successors, (92), 72 states have internal predecessors, (92), 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) [2023-11-26 11:45:03,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-26 11:45:03,082 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:45:03,083 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:45:03,083 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:45:03,088 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:45:03,089 INFO L85 PathProgramCache]: Analyzing trace with hash -80666079, now seen corresponding path program 1 times [2023-11-26 11:45:03,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:45:03,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430133992] [2023-11-26 11:45:03,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:03,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:45:03,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:03,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 11:45:03,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:03,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:45:03,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:45:03,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430133992] [2023-11-26 11:45:03,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430133992] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:45:03,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:45:03,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:45:03,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533747393] [2023-11-26 11:45:03,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:45:03,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 11:45:03,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:45:03,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 11:45:03,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:45:03,393 INFO L87 Difference]: Start difference. First operand has 92 states, 61 states have (on average 1.5081967213114753) internal successors, (92), 72 states have internal predecessors, (92), 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 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:45:03,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:45:03,505 INFO L93 Difference]: Finished difference Result 182 states and 261 transitions. [2023-11-26 11:45:03,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 11:45:03,508 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2023-11-26 11:45:03,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:45:03,524 INFO L225 Difference]: With dead ends: 182 [2023-11-26 11:45:03,525 INFO L226 Difference]: Without dead ends: 87 [2023-11-26 11:45:03,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:45:03,534 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:45:03,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 109 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:45:03,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2023-11-26 11:45:03,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2023-11-26 11:45:03,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 58 states have (on average 1.4137931034482758) internal successors, (82), 68 states have internal predecessors, (82), 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) [2023-11-26 11:45:03,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 119 transitions. [2023-11-26 11:45:03,586 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 119 transitions. Word has length 17 [2023-11-26 11:45:03,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:45:03,587 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 119 transitions. [2023-11-26 11:45:03,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:45:03,588 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 119 transitions. [2023-11-26 11:45:03,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-26 11:45:03,591 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:45:03,591 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:45:03,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:45:03,592 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:45:03,593 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:45:03,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1437964939, now seen corresponding path program 1 times [2023-11-26 11:45:03,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:45:03,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574298560] [2023-11-26 11:45:03,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:03,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:45:03,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:03,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-26 11:45:03,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:03,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:45:03,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:45:03,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574298560] [2023-11-26 11:45:03,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574298560] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:45:03,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:45:03,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:45:03,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915744332] [2023-11-26 11:45:03,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:45:03,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:45:03,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:45:03,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:45:03,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:45:03,733 INFO L87 Difference]: Start difference. First operand 87 states and 119 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:45:03,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:45:03,799 INFO L93 Difference]: Finished difference Result 144 states and 196 transitions. [2023-11-26 11:45:03,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:45:03,799 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2023-11-26 11:45:03,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:45:03,802 INFO L225 Difference]: With dead ends: 144 [2023-11-26 11:45:03,802 INFO L226 Difference]: Without dead ends: 79 [2023-11-26 11:45:03,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:45:03,805 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 14 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:45:03,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 173 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:45:03,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2023-11-26 11:45:03,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2023-11-26 11:45:03,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 53 states have (on average 1.4339622641509433) internal successors, (76), 63 states have internal predecessors, (76), 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) [2023-11-26 11:45:03,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 108 transitions. [2023-11-26 11:45:03,822 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 108 transitions. Word has length 18 [2023-11-26 11:45:03,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:45:03,823 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 108 transitions. [2023-11-26 11:45:03,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:45:03,824 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 108 transitions. [2023-11-26 11:45:03,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-26 11:45:03,830 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:45:03,830 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:45:03,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 11:45:03,830 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:45:03,831 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:45:03,831 INFO L85 PathProgramCache]: Analyzing trace with hash 139538423, now seen corresponding path program 1 times [2023-11-26 11:45:03,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:45:03,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527315650] [2023-11-26 11:45:03,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:03,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:45:03,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:04,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-26 11:45:04,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:04,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:45:04,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:45:04,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527315650] [2023-11-26 11:45:04,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527315650] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:45:04,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:45:04,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 11:45:04,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670606134] [2023-11-26 11:45:04,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:45:04,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:45:04,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:45:04,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:45:04,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:45:04,042 INFO L87 Difference]: Start difference. First operand 79 states and 108 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:45:04,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:45:04,249 INFO L93 Difference]: Finished difference Result 208 states and 290 transitions. [2023-11-26 11:45:04,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:45:04,250 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2023-11-26 11:45:04,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:45:04,253 INFO L225 Difference]: With dead ends: 208 [2023-11-26 11:45:04,254 INFO L226 Difference]: Without dead ends: 131 [2023-11-26 11:45:04,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:45:04,257 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 121 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:45:04,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 231 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:45:04,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2023-11-26 11:45:04,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 114. [2023-11-26 11:45:04,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 78 states have (on average 1.4487179487179487) internal successors, (113), 91 states have internal predecessors, (113), 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) [2023-11-26 11:45:04,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 156 transitions. [2023-11-26 11:45:04,285 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 156 transitions. Word has length 21 [2023-11-26 11:45:04,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:45:04,285 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 156 transitions. [2023-11-26 11:45:04,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:45:04,286 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 156 transitions. [2023-11-26 11:45:04,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-26 11:45:04,288 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:45:04,288 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:45:04,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 11:45:04,289 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:45:04,289 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:45:04,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1743862495, now seen corresponding path program 1 times [2023-11-26 11:45:04,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:45:04,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243426567] [2023-11-26 11:45:04,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:04,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:45:04,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:04,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-26 11:45:04,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:04,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:45:04,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:45:04,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243426567] [2023-11-26 11:45:04,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243426567] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:45:04,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:45:04,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:45:04,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417282261] [2023-11-26 11:45:04,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:45:04,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:45:04,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:45:04,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:45:04,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:45:04,419 INFO L87 Difference]: Start difference. First operand 114 states and 156 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-11-26 11:45:04,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:45:04,519 INFO L93 Difference]: Finished difference Result 226 states and 316 transitions. [2023-11-26 11:45:04,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:45:04,519 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 24 [2023-11-26 11:45:04,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:45:04,533 INFO L225 Difference]: With dead ends: 226 [2023-11-26 11:45:04,533 INFO L226 Difference]: Without dead ends: 224 [2023-11-26 11:45:04,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:45:04,542 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 84 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:45:04,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 186 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:45:04,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2023-11-26 11:45:04,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2023-11-26 11:45:04,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 153 states have (on average 1.4444444444444444) internal successors, (221), 178 states have internal predecessors, (221), 42 states have call successors, (42), 28 states have call predecessors, (42), 28 states have return successors, (50), 30 states have call predecessors, (50), 42 states have call successors, (50) [2023-11-26 11:45:04,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 313 transitions. [2023-11-26 11:45:04,602 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 313 transitions. Word has length 24 [2023-11-26 11:45:04,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:45:04,602 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 313 transitions. [2023-11-26 11:45:04,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-11-26 11:45:04,603 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 313 transitions. [2023-11-26 11:45:04,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-26 11:45:04,606 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:45:04,606 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-26 11:45:04,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 11:45:04,606 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:45:04,607 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:45:04,607 INFO L85 PathProgramCache]: Analyzing trace with hash 388527775, now seen corresponding path program 1 times [2023-11-26 11:45:04,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:45:04,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672647907] [2023-11-26 11:45:04,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:04,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:45:04,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:04,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-26 11:45:04,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:04,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-26 11:45:04,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:04,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-26 11:45:04,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:04,814 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 11:45:04,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:45:04,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672647907] [2023-11-26 11:45:04,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672647907] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:45:04,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [777230750] [2023-11-26 11:45:04,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:04,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:45:04,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc3fffc0-4ce3-47a0-895d-d5beb25bf19f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:45:04,819 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc3fffc0-4ce3-47a0-895d-d5beb25bf19f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:45:04,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc3fffc0-4ce3-47a0-895d-d5beb25bf19f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 11:45:04,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:04,957 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-26 11:45:04,963 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:45:05,053 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 11:45:05,053 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:45:05,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [777230750] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:45:05,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:45:05,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2023-11-26 11:45:05,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217564981] [2023-11-26 11:45:05,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:45:05,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:45:05,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:45:05,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:45:05,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-26 11:45:05,064 INFO L87 Difference]: Start difference. First operand 224 states and 313 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-26 11:45:05,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:45:05,193 INFO L93 Difference]: Finished difference Result 489 states and 702 transitions. [2023-11-26 11:45:05,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 11:45:05,195 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 44 [2023-11-26 11:45:05,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:45:05,204 INFO L225 Difference]: With dead ends: 489 [2023-11-26 11:45:05,205 INFO L226 Difference]: Without dead ends: 267 [2023-11-26 11:45:05,208 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-11-26 11:45:05,209 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 71 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:45:05,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 245 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:45:05,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2023-11-26 11:45:05,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 253. [2023-11-26 11:45:05,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 173 states have (on average 1.3410404624277457) internal successors, (232), 193 states have internal predecessors, (232), 44 states have call successors, (44), 36 states have call predecessors, (44), 35 states have return successors, (64), 38 states have call predecessors, (64), 44 states have call successors, (64) [2023-11-26 11:45:05,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 340 transitions. [2023-11-26 11:45:05,271 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 340 transitions. Word has length 44 [2023-11-26 11:45:05,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:45:05,271 INFO L495 AbstractCegarLoop]: Abstraction has 253 states and 340 transitions. [2023-11-26 11:45:05,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-26 11:45:05,272 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 340 transitions. [2023-11-26 11:45:05,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-26 11:45:05,279 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:45:05,280 INFO L195 NwaCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:45:05,289 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc3fffc0-4ce3-47a0-895d-d5beb25bf19f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-26 11:45:05,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc3fffc0-4ce3-47a0-895d-d5beb25bf19f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:45:05,487 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:45:05,488 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:45:05,488 INFO L85 PathProgramCache]: Analyzing trace with hash 72701239, now seen corresponding path program 1 times [2023-11-26 11:45:05,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:45:05,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6224786] [2023-11-26 11:45:05,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:05,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:45:05,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:05,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 11:45:05,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:05,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-26 11:45:05,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:05,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:45:05,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:05,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-26 11:45:05,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:05,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:45:05,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:05,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-26 11:45:05,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:05,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-26 11:45:05,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:05,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:45:05,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:05,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-26 11:45:05,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:05,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:45:05,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:05,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-26 11:45:05,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:05,813 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 12 proven. 10 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-11-26 11:45:05,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:45:05,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6224786] [2023-11-26 11:45:05,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6224786] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:45:05,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1372637968] [2023-11-26 11:45:05,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:05,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:45:05,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc3fffc0-4ce3-47a0-895d-d5beb25bf19f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:45:05,815 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc3fffc0-4ce3-47a0-895d-d5beb25bf19f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:45:05,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc3fffc0-4ce3-47a0-895d-d5beb25bf19f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 11:45:05,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:05,942 INFO L262 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 11:45:05,951 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:45:06,063 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 11:45:06,064 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:45:06,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1372637968] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:45:06,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:45:06,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-11-26 11:45:06,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075825898] [2023-11-26 11:45:06,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:45:06,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:45:06,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:45:06,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:45:06,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:45:06,067 INFO L87 Difference]: Start difference. First operand 253 states and 340 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-26 11:45:06,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:45:06,156 INFO L93 Difference]: Finished difference Result 503 states and 689 transitions. [2023-11-26 11:45:06,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:45:06,157 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 95 [2023-11-26 11:45:06,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:45:06,160 INFO L225 Difference]: With dead ends: 503 [2023-11-26 11:45:06,160 INFO L226 Difference]: Without dead ends: 252 [2023-11-26 11:45:06,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:45:06,169 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 54 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:45:06,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 197 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:45:06,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2023-11-26 11:45:06,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2023-11-26 11:45:06,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 172 states have (on average 1.2848837209302326) internal successors, (221), 191 states have internal predecessors, (221), 44 states have call successors, (44), 36 states have call predecessors, (44), 35 states have return successors, (62), 38 states have call predecessors, (62), 44 states have call successors, (62) [2023-11-26 11:45:06,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 327 transitions. [2023-11-26 11:45:06,219 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 327 transitions. Word has length 95 [2023-11-26 11:45:06,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:45:06,219 INFO L495 AbstractCegarLoop]: Abstraction has 252 states and 327 transitions. [2023-11-26 11:45:06,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-26 11:45:06,220 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 327 transitions. [2023-11-26 11:45:06,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-26 11:45:06,223 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:45:06,223 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-26 11:45:06,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc3fffc0-4ce3-47a0-895d-d5beb25bf19f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-26 11:45:06,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc3fffc0-4ce3-47a0-895d-d5beb25bf19f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:45:06,430 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:45:06,430 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:45:06,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1589769726, now seen corresponding path program 1 times [2023-11-26 11:45:06,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:45:06,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205968169] [2023-11-26 11:45:06,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:06,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:45:06,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:06,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-26 11:45:06,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:06,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-26 11:45:06,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:06,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:45:06,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:06,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-26 11:45:06,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:06,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:45:06,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:06,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-26 11:45:06,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:06,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-26 11:45:06,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:06,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:45:06,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:06,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-26 11:45:06,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:06,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 11:45:06,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:06,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:45:06,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:06,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-26 11:45:06,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:06,636 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-26 11:45:06,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:45:06,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205968169] [2023-11-26 11:45:06,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205968169] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:45:06,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1354550798] [2023-11-26 11:45:06,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:06,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:45:06,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc3fffc0-4ce3-47a0-895d-d5beb25bf19f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:45:06,638 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc3fffc0-4ce3-47a0-895d-d5beb25bf19f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:45:06,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc3fffc0-4ce3-47a0-895d-d5beb25bf19f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-26 11:45:06,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:06,762 INFO L262 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 11:45:06,774 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:45:06,796 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-11-26 11:45:06,796 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:45:06,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1354550798] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:45:06,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:45:06,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 7 [2023-11-26 11:45:06,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281120536] [2023-11-26 11:45:06,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:45:06,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:45:06,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:45:06,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:45:06,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:45:06,801 INFO L87 Difference]: Start difference. First operand 252 states and 327 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-26 11:45:06,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:45:06,858 INFO L93 Difference]: Finished difference Result 478 states and 620 transitions. [2023-11-26 11:45:06,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:45:06,859 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 100 [2023-11-26 11:45:06,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:45:06,862 INFO L225 Difference]: With dead ends: 478 [2023-11-26 11:45:06,862 INFO L226 Difference]: Without dead ends: 188 [2023-11-26 11:45:06,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:45:06,865 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 34 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:45:06,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 211 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:45:06,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2023-11-26 11:45:06,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2023-11-26 11:45:06,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 127 states have (on average 1.2598425196850394) internal successors, (160), 140 states have internal predecessors, (160), 32 states have call successors, (32), 27 states have call predecessors, (32), 28 states have return successors, (42), 29 states have call predecessors, (42), 32 states have call successors, (42) [2023-11-26 11:45:06,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 234 transitions. [2023-11-26 11:45:06,895 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 234 transitions. Word has length 100 [2023-11-26 11:45:06,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:45:06,896 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 234 transitions. [2023-11-26 11:45:06,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-26 11:45:06,896 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 234 transitions. [2023-11-26 11:45:06,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-26 11:45:06,898 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:45:06,898 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:45:06,909 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc3fffc0-4ce3-47a0-895d-d5beb25bf19f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-26 11:45:07,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc3fffc0-4ce3-47a0-895d-d5beb25bf19f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:45:07,104 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:45:07,105 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:45:07,105 INFO L85 PathProgramCache]: Analyzing trace with hash -443917542, now seen corresponding path program 1 times [2023-11-26 11:45:07,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:45:07,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743745957] [2023-11-26 11:45:07,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:07,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:45:07,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:07,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 11:45:07,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:07,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-26 11:45:07,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:07,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:45:07,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:07,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-26 11:45:07,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:07,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:45:07,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:07,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-26 11:45:07,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:07,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-26 11:45:07,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:07,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:45:07,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:07,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-26 11:45:07,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:07,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 11:45:07,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:07,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:45:07,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:07,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-26 11:45:07,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:07,282 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-26 11:45:07,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:45:07,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743745957] [2023-11-26 11:45:07,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743745957] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:45:07,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2024566295] [2023-11-26 11:45:07,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:07,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:45:07,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc3fffc0-4ce3-47a0-895d-d5beb25bf19f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:45:07,285 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc3fffc0-4ce3-47a0-895d-d5beb25bf19f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:45:07,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc3fffc0-4ce3-47a0-895d-d5beb25bf19f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-26 11:45:07,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:07,429 INFO L262 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-26 11:45:07,438 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:45:07,454 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-26 11:45:07,454 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:45:07,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2024566295] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:45:07,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:45:07,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 6 [2023-11-26 11:45:07,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081465536] [2023-11-26 11:45:07,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:45:07,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:45:07,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:45:07,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:45:07,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:45:07,458 INFO L87 Difference]: Start difference. First operand 188 states and 234 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-26 11:45:07,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:45:07,521 INFO L93 Difference]: Finished difference Result 378 states and 478 transitions. [2023-11-26 11:45:07,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:45:07,522 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 97 [2023-11-26 11:45:07,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:45:07,524 INFO L225 Difference]: With dead ends: 378 [2023-11-26 11:45:07,525 INFO L226 Difference]: Without dead ends: 192 [2023-11-26 11:45:07,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:45:07,527 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 2 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:45:07,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 258 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:45:07,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2023-11-26 11:45:07,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 190. [2023-11-26 11:45:07,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 129 states have (on average 1.255813953488372) internal successors, (162), 142 states have internal predecessors, (162), 32 states have call successors, (32), 27 states have call predecessors, (32), 28 states have return successors, (42), 29 states have call predecessors, (42), 32 states have call successors, (42) [2023-11-26 11:45:07,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 236 transitions. [2023-11-26 11:45:07,559 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 236 transitions. Word has length 97 [2023-11-26 11:45:07,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:45:07,560 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 236 transitions. [2023-11-26 11:45:07,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-26 11:45:07,560 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 236 transitions. [2023-11-26 11:45:07,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-26 11:45:07,563 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:45:07,563 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:45:07,577 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc3fffc0-4ce3-47a0-895d-d5beb25bf19f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-26 11:45:07,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc3fffc0-4ce3-47a0-895d-d5beb25bf19f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:45:07,769 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:45:07,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:45:07,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1773712856, now seen corresponding path program 1 times [2023-11-26 11:45:07,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:45:07,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147329361] [2023-11-26 11:45:07,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:07,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:45:07,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:07,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 11:45:07,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:07,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-26 11:45:07,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:07,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:45:07,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:07,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-26 11:45:07,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:07,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:45:07,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:07,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-26 11:45:07,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:07,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-26 11:45:07,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:07,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:45:08,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:08,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-26 11:45:08,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:08,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 11:45:08,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:08,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:45:08,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:08,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-26 11:45:08,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:08,013 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 17 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-26 11:45:08,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:45:08,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147329361] [2023-11-26 11:45:08,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147329361] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:45:08,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [556777181] [2023-11-26 11:45:08,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:08,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:45:08,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc3fffc0-4ce3-47a0-895d-d5beb25bf19f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:45:08,016 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc3fffc0-4ce3-47a0-895d-d5beb25bf19f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:45:08,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc3fffc0-4ce3-47a0-895d-d5beb25bf19f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-26 11:45:08,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:08,134 INFO L262 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 11:45:08,137 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:45:08,149 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-26 11:45:08,149 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:45:08,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [556777181] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:45:08,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:45:08,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [11] total 11 [2023-11-26 11:45:08,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565337522] [2023-11-26 11:45:08,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:45:08,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:45:08,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:45:08,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:45:08,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-11-26 11:45:08,152 INFO L87 Difference]: Start difference. First operand 190 states and 236 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-26 11:45:08,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:45:08,214 INFO L93 Difference]: Finished difference Result 385 states and 486 transitions. [2023-11-26 11:45:08,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:45:08,215 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 97 [2023-11-26 11:45:08,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:45:08,217 INFO L225 Difference]: With dead ends: 385 [2023-11-26 11:45:08,217 INFO L226 Difference]: Without dead ends: 197 [2023-11-26 11:45:08,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-11-26 11:45:08,219 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 6 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:45:08,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 257 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:45:08,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2023-11-26 11:45:08,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 192. [2023-11-26 11:45:08,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 131 states have (on average 1.251908396946565) internal successors, (164), 144 states have internal predecessors, (164), 32 states have call successors, (32), 27 states have call predecessors, (32), 28 states have return successors, (42), 29 states have call predecessors, (42), 32 states have call successors, (42) [2023-11-26 11:45:08,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 238 transitions. [2023-11-26 11:45:08,256 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 238 transitions. Word has length 97 [2023-11-26 11:45:08,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:45:08,257 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 238 transitions. [2023-11-26 11:45:08,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-26 11:45:08,257 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 238 transitions. [2023-11-26 11:45:08,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-26 11:45:08,259 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:45:08,259 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:45:08,274 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc3fffc0-4ce3-47a0-895d-d5beb25bf19f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-26 11:45:08,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc3fffc0-4ce3-47a0-895d-d5beb25bf19f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-26 11:45:08,474 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:45:08,475 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:45:08,475 INFO L85 PathProgramCache]: Analyzing trace with hash -1682220778, now seen corresponding path program 1 times [2023-11-26 11:45:08,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:45:08,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979522016] [2023-11-26 11:45:08,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:08,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:45:08,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:08,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 11:45:08,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:08,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-26 11:45:08,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:08,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:45:08,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:08,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-26 11:45:08,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:08,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:45:08,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:08,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-26 11:45:08,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:08,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-26 11:45:08,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:08,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:45:08,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:08,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-26 11:45:08,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:08,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 11:45:08,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:08,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:45:08,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:08,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-26 11:45:08,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:08,876 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 16 proven. 10 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-26 11:45:08,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:45:08,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979522016] [2023-11-26 11:45:08,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979522016] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:45:08,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [799021689] [2023-11-26 11:45:08,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:08,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:45:08,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc3fffc0-4ce3-47a0-895d-d5beb25bf19f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:45:08,879 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc3fffc0-4ce3-47a0-895d-d5beb25bf19f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:45:08,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc3fffc0-4ce3-47a0-895d-d5beb25bf19f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-26 11:45:08,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:09,000 INFO L262 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 11:45:09,003 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:45:09,155 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-26 11:45:09,155 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:45:09,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [799021689] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:45:09,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:45:09,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [13] total 16 [2023-11-26 11:45:09,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712614746] [2023-11-26 11:45:09,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:45:09,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:45:09,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:45:09,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:45:09,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2023-11-26 11:45:09,159 INFO L87 Difference]: Start difference. First operand 192 states and 238 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 6 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 6 states have call successors, (12) [2023-11-26 11:45:09,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:45:09,578 INFO L93 Difference]: Finished difference Result 645 states and 840 transitions. [2023-11-26 11:45:09,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 11:45:09,579 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 6 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 6 states have call successors, (12) Word has length 97 [2023-11-26 11:45:09,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:45:09,596 INFO L225 Difference]: With dead ends: 645 [2023-11-26 11:45:09,596 INFO L226 Difference]: Without dead ends: 455 [2023-11-26 11:45:09,598 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2023-11-26 11:45:09,598 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 190 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 11:45:09,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 209 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 11:45:09,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2023-11-26 11:45:09,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 443. [2023-11-26 11:45:09,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 305 states have (on average 1.2426229508196722) internal successors, (379), 329 states have internal predecessors, (379), 73 states have call successors, (73), 64 states have call predecessors, (73), 64 states have return successors, (109), 66 states have call predecessors, (109), 73 states have call successors, (109) [2023-11-26 11:45:09,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 561 transitions. [2023-11-26 11:45:09,661 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 561 transitions. Word has length 97 [2023-11-26 11:45:09,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:45:09,663 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 561 transitions. [2023-11-26 11:45:09,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 6 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 6 states have call successors, (12) [2023-11-26 11:45:09,663 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 561 transitions. [2023-11-26 11:45:09,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-26 11:45:09,666 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:45:09,666 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-26 11:45:09,676 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc3fffc0-4ce3-47a0-895d-d5beb25bf19f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-26 11:45:09,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc3fffc0-4ce3-47a0-895d-d5beb25bf19f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-26 11:45:09,875 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:45:09,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:45:09,875 INFO L85 PathProgramCache]: Analyzing trace with hash 769646448, now seen corresponding path program 1 times [2023-11-26 11:45:09,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:45:09,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802548992] [2023-11-26 11:45:09,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:09,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:45:09,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:09,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 11:45:09,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:09,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-26 11:45:10,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:10,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-26 11:45:10,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:10,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:45:10,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:10,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-26 11:45:10,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:10,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:45:10,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:10,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-26 11:45:10,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:10,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-26 11:45:10,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:10,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:45:10,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:10,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-26 11:45:10,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:10,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 11:45:10,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:10,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:45:10,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:10,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-26 11:45:10,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:10,281 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 16 proven. 10 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-26 11:45:10,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:45:10,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802548992] [2023-11-26 11:45:10,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802548992] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:45:10,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [389747155] [2023-11-26 11:45:10,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:10,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:45:10,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc3fffc0-4ce3-47a0-895d-d5beb25bf19f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:45:10,285 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc3fffc0-4ce3-47a0-895d-d5beb25bf19f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:45:10,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc3fffc0-4ce3-47a0-895d-d5beb25bf19f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-26 11:45:10,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:10,404 INFO L262 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-26 11:45:10,407 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:45:10,546 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 32 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 11:45:10,546 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:45:10,828 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-26 11:45:10,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [389747155] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:45:10,829 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:45:10,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 5, 6] total 19 [2023-11-26 11:45:10,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025904944] [2023-11-26 11:45:10,829 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:45:10,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-26 11:45:10,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:45:10,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-26 11:45:10,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2023-11-26 11:45:10,832 INFO L87 Difference]: Start difference. First operand 443 states and 561 transitions. Second operand has 19 states, 17 states have (on average 8.235294117647058) internal successors, (140), 13 states have internal predecessors, (140), 7 states have call successors, (32), 7 states have call predecessors, (32), 8 states have return successors, (31), 10 states have call predecessors, (31), 7 states have call successors, (31) [2023-11-26 11:45:14,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:45:14,924 INFO L93 Difference]: Finished difference Result 2466 states and 3363 transitions. [2023-11-26 11:45:14,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2023-11-26 11:45:14,925 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 8.235294117647058) internal successors, (140), 13 states have internal predecessors, (140), 7 states have call successors, (32), 7 states have call predecessors, (32), 8 states have return successors, (31), 10 states have call predecessors, (31), 7 states have call successors, (31) Word has length 101 [2023-11-26 11:45:14,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:45:14,942 INFO L225 Difference]: With dead ends: 2466 [2023-11-26 11:45:14,943 INFO L226 Difference]: Without dead ends: 2025 [2023-11-26 11:45:14,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 242 SyntacticMatches, 2 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5363 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1784, Invalid=12736, Unknown=0, NotChecked=0, Total=14520 [2023-11-26 11:45:14,956 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 1158 mSDsluCounter, 895 mSDsCounter, 0 mSdLazyCounter, 2126 mSolverCounterSat, 590 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1177 SdHoareTripleChecker+Valid, 985 SdHoareTripleChecker+Invalid, 2716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 590 IncrementalHoareTripleChecker+Valid, 2126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-26 11:45:14,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1177 Valid, 985 Invalid, 2716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [590 Valid, 2126 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-26 11:45:14,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2025 states. [2023-11-26 11:45:15,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2025 to 1578. [2023-11-26 11:45:15,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1075 states have (on average 1.1916279069767441) internal successors, (1281), 1160 states have internal predecessors, (1281), 261 states have call successors, (261), 212 states have call predecessors, (261), 241 states have return successors, (431), 248 states have call predecessors, (431), 261 states have call successors, (431) [2023-11-26 11:45:15,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 1973 transitions. [2023-11-26 11:45:15,171 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 1973 transitions. Word has length 101 [2023-11-26 11:45:15,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:45:15,172 INFO L495 AbstractCegarLoop]: Abstraction has 1578 states and 1973 transitions. [2023-11-26 11:45:15,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 8.235294117647058) internal successors, (140), 13 states have internal predecessors, (140), 7 states have call successors, (32), 7 states have call predecessors, (32), 8 states have return successors, (31), 10 states have call predecessors, (31), 7 states have call successors, (31) [2023-11-26 11:45:15,172 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 1973 transitions. [2023-11-26 11:45:15,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-11-26 11:45:15,178 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:45:15,178 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-26 11:45:15,193 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc3fffc0-4ce3-47a0-895d-d5beb25bf19f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-26 11:45:15,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc3fffc0-4ce3-47a0-895d-d5beb25bf19f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-26 11:45:15,384 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:45:15,384 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:45:15,385 INFO L85 PathProgramCache]: Analyzing trace with hash -575000107, now seen corresponding path program 1 times [2023-11-26 11:45:15,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:45:15,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609785784] [2023-11-26 11:45:15,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:15,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:45:15,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:15,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 11:45:15,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:15,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-26 11:45:15,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:15,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-26 11:45:15,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:15,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:45:15,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:15,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-26 11:45:15,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:15,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:45:15,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:15,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-26 11:45:15,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:15,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-26 11:45:15,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:15,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-26 11:45:15,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:15,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 11:45:15,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:15,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:45:15,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:15,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-26 11:45:15,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:15,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 11:45:15,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:15,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:45:15,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:15,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-26 11:45:15,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:15,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-26 11:45:15,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:15,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:45:15,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:15,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-26 11:45:15,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:15,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 11:45:15,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:15,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:45:15,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:15,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-11-26 11:45:15,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:15,860 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 54 proven. 6 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2023-11-26 11:45:15,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:45:15,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609785784] [2023-11-26 11:45:15,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609785784] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:45:15,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1878263978] [2023-11-26 11:45:15,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:15,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:45:15,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc3fffc0-4ce3-47a0-895d-d5beb25bf19f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:45:15,863 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc3fffc0-4ce3-47a0-895d-d5beb25bf19f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:45:15,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc3fffc0-4ce3-47a0-895d-d5beb25bf19f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-26 11:45:16,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:16,007 INFO L262 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-26 11:45:16,012 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:45:16,180 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-26 11:45:16,181 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:45:16,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1878263978] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:45:16,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:45:16,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [17] total 22 [2023-11-26 11:45:16,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744682514] [2023-11-26 11:45:16,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:45:16,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 11:45:16,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:45:16,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 11:45:16,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=408, Unknown=0, NotChecked=0, Total=462 [2023-11-26 11:45:16,184 INFO L87 Difference]: Start difference. First operand 1578 states and 1973 transitions. Second operand has 8 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 3 states have call successors, (18), 3 states have call predecessors, (18), 5 states have return successors, (17), 5 states have call predecessors, (17), 3 states have call successors, (17) [2023-11-26 11:45:16,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:45:16,442 INFO L93 Difference]: Finished difference Result 2771 states and 3444 transitions. [2023-11-26 11:45:16,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-26 11:45:16,443 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 3 states have call successors, (18), 3 states have call predecessors, (18), 5 states have return successors, (17), 5 states have call predecessors, (17), 3 states have call successors, (17) Word has length 152 [2023-11-26 11:45:16,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:45:16,444 INFO L225 Difference]: With dead ends: 2771 [2023-11-26 11:45:16,444 INFO L226 Difference]: Without dead ends: 0 [2023-11-26 11:45:16,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=408, Unknown=0, NotChecked=0, Total=462 [2023-11-26 11:45:16,453 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 57 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:45:16,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 455 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:45:16,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-26 11:45:16,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-26 11:45:16,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:16,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-26 11:45:16,454 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 152 [2023-11-26 11:45:16,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:45:16,455 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 11:45:16,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 3 states have call successors, (18), 3 states have call predecessors, (18), 5 states have return successors, (17), 5 states have call predecessors, (17), 3 states have call successors, (17) [2023-11-26 11:45:16,456 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-26 11:45:16,456 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-26 11:45:16,458 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-26 11:45:16,472 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc3fffc0-4ce3-47a0-895d-d5beb25bf19f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-26 11:45:16,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc3fffc0-4ce3-47a0-895d-d5beb25bf19f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:45:16,666 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-26 11:45:24,044 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 521 528) no Hoare annotation was computed. [2023-11-26 11:45:24,044 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 521 528) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (< |old(~pumpRunning~0)| 1)) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 (not (= ~methAndRunningLastTime~0 0)) (< ~methaneLevelCritical~0 1)) (or (<= 1 ~pumpRunning~0) .cse1 .cse2) (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1 .cse2))) [2023-11-26 11:45:24,045 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 411 417) no Hoare annotation was computed. [2023-11-26 11:45:24,045 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 411 417) the Hoare annotation is: true [2023-11-26 11:45:24,045 INFO L895 garLoopResultBuilder]: At program point L459(line 459) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= ~methAndRunningLastTime~0 0))) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse2 .cse3 (< ~methaneLevelCritical~0 1)) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 (< |old(~pumpRunning~0)| 1) .cse2))) [2023-11-26 11:45:24,045 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 445 469) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse3 (not (= ~methAndRunningLastTime~0 0))) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 .cse3 (< ~methaneLevelCritical~0 1)) (or .cse0 .cse1 .cse4 .cse2 .cse3) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse4 (< |old(~pumpRunning~0)| 1) .cse2))) [2023-11-26 11:45:24,046 INFO L895 garLoopResultBuilder]: At program point L455(line 455) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= ~methAndRunningLastTime~0 0))) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse2 .cse3 (< ~methaneLevelCritical~0 1)) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 (< |old(~pumpRunning~0)| 1) .cse2))) [2023-11-26 11:45:24,046 INFO L899 garLoopResultBuilder]: For program point L453(lines 453 461) no Hoare annotation was computed. [2023-11-26 11:45:24,046 INFO L899 garLoopResultBuilder]: For program point L449(lines 449 466) no Hoare annotation was computed. [2023-11-26 11:45:24,046 INFO L895 garLoopResultBuilder]: At program point L464(line 464) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= 0 ~systemActive~0)) (.cse3 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3 (< ~methaneLevelCritical~0 1)) (or .cse4 (< |old(~pumpRunning~0)| 1) .cse2) (or .cse0 .cse1 .cse4 .cse2 .cse3))) [2023-11-26 11:45:24,047 INFO L899 garLoopResultBuilder]: For program point L464-1(lines 445 469) no Hoare annotation was computed. [2023-11-26 11:45:24,047 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 445 469) no Hoare annotation was computed. [2023-11-26 11:45:24,047 INFO L899 garLoopResultBuilder]: For program point L613(lines 613 617) no Hoare annotation was computed. [2023-11-26 11:45:24,047 INFO L899 garLoopResultBuilder]: For program point L613-2(lines 613 617) no Hoare annotation was computed. [2023-11-26 11:45:24,047 INFO L899 garLoopResultBuilder]: For program point L241-1(lines 237 248) no Hoare annotation was computed. [2023-11-26 11:45:24,047 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 237 248) the Hoare annotation is: (let ((.cse0 (not (= |old(~methaneLevelCritical~0)| 0))) (.cse4 (not (= ~pumpRunning~0 0))) (.cse1 (= ~methaneLevelCritical~0 0)) (.cse2 (= 0 ~systemActive~0)) (.cse3 (not (= ~methAndRunningLastTime~0 0)))) (and (or (< ~pumpRunning~0 1) .cse0 .cse1 .cse2 .cse3) (or (<= 1 ~methaneLevelCritical~0) .cse4 (< |old(~methaneLevelCritical~0)| 1) .cse2 .cse3) (or .cse0 .cse4 .cse1 .cse2 .cse3))) [2023-11-26 11:45:24,048 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 237 248) no Hoare annotation was computed. [2023-11-26 11:45:24,048 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 249 257) the Hoare annotation is: true [2023-11-26 11:45:24,048 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 249 257) no Hoare annotation was computed. [2023-11-26 11:45:24,048 INFO L895 garLoopResultBuilder]: At program point L481(line 481) the Hoare annotation is: (let ((.cse1 (not (= |old(~waterLevel~0)| 0))) (.cse4 (= ~waterLevel~0 0)) (.cse7 (< |old(~waterLevel~0)| 2)) (.cse8 (<= 1 ~waterLevel~0)) (.cse2 (< |old(~pumpRunning~0)| 1)) (.cse9 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse10 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse6 (not (= ~methaneLevelCritical~0 0))) (.cse3 (= 0 ~systemActive~0)) (.cse11 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse5 (< ~methaneLevelCritical~0 1))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse6 .cse1 .cse2 .cse3 (and (= |old(~methAndRunningLastTime~0)| ~methAndRunningLastTime~0) .cse4)) (or .cse0 .cse7 .cse8 .cse2 .cse3 .cse5) (or .cse6 (and .cse9 .cse10) .cse2 .cse3) (or .cse7 .cse6 .cse8 .cse2 .cse3) (or .cse0 .cse2 .cse3 (and .cse9 (<= ~methaneLevelCritical~0 |timeShift_processEnvironment_~tmp~5#1|) (= ~methAndRunningLastTime~0 0) .cse10) .cse5) (or .cse11 .cse0 .cse6) (or .cse11 (not .cse3)) (or .cse11 .cse0 .cse5))) [2023-11-26 11:45:24,049 INFO L895 garLoopResultBuilder]: At program point L477(line 477) the Hoare annotation is: (let ((.cse1 (not (= |old(~waterLevel~0)| 0))) (.cse4 (= ~waterLevel~0 0)) (.cse7 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse8 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse9 (< |old(~waterLevel~0)| 2)) (.cse10 (<= 1 ~waterLevel~0)) (.cse2 (< |old(~pumpRunning~0)| 1)) (.cse6 (not (= ~methaneLevelCritical~0 0))) (.cse3 (= 0 ~systemActive~0)) (.cse11 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse5 (< ~methaneLevelCritical~0 1))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse6 .cse1 .cse2 .cse3 (and (= |old(~methAndRunningLastTime~0)| ~methAndRunningLastTime~0) .cse4)) (or (and .cse7 (= ~methAndRunningLastTime~0 0) .cse8) .cse0 .cse2 .cse3 .cse5) (or .cse0 .cse9 .cse10 .cse2 .cse3 .cse5) (or .cse6 (and .cse7 .cse8) .cse2 .cse3) (or .cse9 .cse6 .cse10 .cse2 .cse3) (or .cse11 .cse0 .cse6) (or .cse11 (not .cse3)) (or .cse11 .cse0 .cse5))) [2023-11-26 11:45:24,049 INFO L899 garLoopResultBuilder]: For program point L477-1(line 477) no Hoare annotation was computed. [2023-11-26 11:45:24,049 INFO L899 garLoopResultBuilder]: For program point L188(lines 188 198) no Hoare annotation was computed. [2023-11-26 11:45:24,049 INFO L899 garLoopResultBuilder]: For program point L217(lines 217 221) no Hoare annotation was computed. [2023-11-26 11:45:24,050 INFO L899 garLoopResultBuilder]: For program point L184(lines 184 201) no Hoare annotation was computed. [2023-11-26 11:45:24,050 INFO L899 garLoopResultBuilder]: For program point L217-2(lines 213 224) no Hoare annotation was computed. [2023-11-26 11:45:24,050 INFO L899 garLoopResultBuilder]: For program point L184-1(lines 176 204) no Hoare annotation was computed. [2023-11-26 11:45:24,050 INFO L895 garLoopResultBuilder]: At program point L490(line 490) the Hoare annotation is: (let ((.cse1 (< |old(~pumpRunning~0)| 1)) (.cse4 (< ~methaneLevelCritical~0 1)) (.cse3 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse6 (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |old(~waterLevel~0)| ~waterLevel~0))) (.cse0 (not (= ~methaneLevelCritical~0 0))) (.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse1 .cse2 .cse4) (or .cse5 .cse3 .cse6 .cse4) (or .cse5 .cse3 .cse6 .cse0) (or .cse5 (not .cse2)))) [2023-11-26 11:45:24,050 INFO L899 garLoopResultBuilder]: For program point L490-1(lines 471 495) no Hoare annotation was computed. [2023-11-26 11:45:24,051 INFO L899 garLoopResultBuilder]: For program point L391-1(lines 390 409) no Hoare annotation was computed. [2023-11-26 11:45:24,051 INFO L899 garLoopResultBuilder]: For program point L160(line 160) no Hoare annotation was computed. [2023-11-26 11:45:24,051 INFO L899 garLoopResultBuilder]: For program point L189(lines 189 195) no Hoare annotation was computed. [2023-11-26 11:45:24,051 INFO L899 garLoopResultBuilder]: For program point L479(lines 479 487) no Hoare annotation was computed. [2023-11-26 11:45:24,051 INFO L899 garLoopResultBuilder]: For program point L475(lines 475 492) no Hoare annotation was computed. [2023-11-26 11:45:24,052 INFO L895 garLoopResultBuilder]: At program point L182(line 182) the Hoare annotation is: (let ((.cse4 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse1 (= ~pumpRunning~0 0)) (.cse9 (= ~methAndRunningLastTime~0 0)) (.cse10 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse8 (and .cse1 .cse9 .cse10)) (.cse11 (not (= |old(~waterLevel~0)| 0))) (.cse12 (= ~waterLevel~0 0)) (.cse14 (< |old(~waterLevel~0)| 2)) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse15 (<= 1 ~waterLevel~0)) (.cse7 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse5 (< |old(~pumpRunning~0)| 1)) (.cse2 (= 0 ~systemActive~0)) (.cse6 (and .cse1 .cse4)) (.cse13 (< ~methaneLevelCritical~0 1))) (and (or .cse0 .cse1 (not .cse2)) (or .cse3 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse4) .cse5 .cse2 .cse6) (or .cse0 .cse7 .cse8 (and (<= 1 ~pumpRunning~0) .cse9 (<= 2 ~waterLevel~0) .cse10) .cse3 .cse2) (or .cse7 .cse11 .cse5 .cse2 .cse12 .cse13) (or .cse0 .cse7 .cse8 .cse2 .cse13) (or (and .cse1 .cse12) .cse3 .cse11 .cse5 .cse2 (and (= |old(~methAndRunningLastTime~0)| ~methAndRunningLastTime~0) .cse12)) (or .cse7 .cse14 .cse15 .cse5 .cse2 .cse13) (or .cse14 .cse3 .cse15 .cse5 .cse2) (or .cse7 .cse5 .cse2 .cse6 .cse13)))) [2023-11-26 11:45:24,052 INFO L899 garLoopResultBuilder]: For program point L182-1(line 182) no Hoare annotation was computed. [2023-11-26 11:45:24,052 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 387 410) the Hoare annotation is: (let ((.cse6 (= ~pumpRunning~0 0)) (.cse9 (= ~methAndRunningLastTime~0 0)) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse4 (= 0 ~systemActive~0))) (let ((.cse7 (not .cse4)) (.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse10 (and .cse6 .cse9 .cse1)) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse8 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse3 (< |old(~pumpRunning~0)| 1)) (.cse11 (< ~methaneLevelCritical~0 1))) (and (or (and .cse0 .cse1 (= |old(~methAndRunningLastTime~0)| ~methAndRunningLastTime~0)) .cse2 .cse3 .cse4) (or .cse5 .cse6 .cse7) (or .cse5 .cse8 .cse9 .cse7) (or .cse5 .cse8 .cse10 .cse4 .cse11) (or .cse5 .cse8 .cse10 .cse2 .cse4) (or (and .cse0 .cse9 .cse1) .cse8 .cse3 .cse4 .cse11)))) [2023-11-26 11:45:24,053 INFO L899 garLoopResultBuilder]: For program point L398-1(lines 398 404) no Hoare annotation was computed. [2023-11-26 11:45:24,053 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 387 410) no Hoare annotation was computed. [2023-11-26 11:45:24,053 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 160) no Hoare annotation was computed. [2023-11-26 11:45:24,053 INFO L895 garLoopResultBuilder]: At program point L485(line 485) the Hoare annotation is: (let ((.cse1 (< |old(~pumpRunning~0)| 1)) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= 0 ~systemActive~0)) (.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse3 (< ~methaneLevelCritical~0 1))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 (not (= |old(~waterLevel~0)| 0)) .cse1 .cse2 (and (= |old(~methAndRunningLastTime~0)| ~methAndRunningLastTime~0) (= ~waterLevel~0 0))) (or .cse4 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= ~waterLevel~0 |old(~waterLevel~0)|)) .cse1 .cse2) (or (< |old(~waterLevel~0)| 2) .cse4 (<= 1 ~waterLevel~0) .cse1 .cse2) (or .cse5 .cse0 .cse4) (or .cse5 (not .cse2)) (or .cse5 .cse0 .cse3))) [2023-11-26 11:45:24,054 INFO L902 garLoopResultBuilder]: At program point L66-1(lines 66 70) the Hoare annotation is: true [2023-11-26 11:45:24,054 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 52 81) no Hoare annotation was computed. [2023-11-26 11:45:24,054 INFO L902 garLoopResultBuilder]: At program point L62-2(lines 62 76) the Hoare annotation is: true [2023-11-26 11:45:24,054 INFO L902 garLoopResultBuilder]: At program point L58(line 58) the Hoare annotation is: true [2023-11-26 11:45:24,054 INFO L899 garLoopResultBuilder]: For program point L58-1(line 58) no Hoare annotation was computed. [2023-11-26 11:45:24,054 INFO L899 garLoopResultBuilder]: For program point L77(lines 52 81) no Hoare annotation was computed. [2023-11-26 11:45:24,055 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 52 81) the Hoare annotation is: true [2023-11-26 11:45:24,055 INFO L899 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2023-11-26 11:45:24,055 INFO L899 garLoopResultBuilder]: For program point L66(lines 66 70) no Hoare annotation was computed. [2023-11-26 11:45:24,055 INFO L899 garLoopResultBuilder]: For program point L345(lines 345 351) no Hoare annotation was computed. [2023-11-26 11:45:24,055 INFO L899 garLoopResultBuilder]: For program point L345-1(lines 345 351) no Hoare annotation was computed. [2023-11-26 11:45:24,055 INFO L895 garLoopResultBuilder]: At program point L370(lines 325 372) the Hoare annotation is: (let ((.cse5 (= 0 ~systemActive~0))) (let ((.cse4 (= ~methaneLevelCritical~0 0)) (.cse3 (not .cse5)) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (<= 1 ~methaneLevelCritical~0) .cse2 .cse3) (and (<= 1 ~pumpRunning~0) .cse1 .cse4 .cse2 .cse3) (and .cse0 .cse1 .cse4 .cse2 .cse3) (and .cse0 .cse1 .cse2 .cse5)))) [2023-11-26 11:45:24,056 INFO L895 garLoopResultBuilder]: At program point L337(line 337) the Hoare annotation is: (let ((.cse5 (= 0 ~systemActive~0))) (let ((.cse4 (= ~methaneLevelCritical~0 0)) (.cse3 (not .cse5)) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (<= 1 ~methaneLevelCritical~0) .cse2 .cse3) (and (<= 1 ~pumpRunning~0) .cse1 .cse4 .cse2 .cse3) (and .cse0 .cse1 .cse4 .cse2 .cse3) (and .cse0 .cse1 .cse2 .cse5)))) [2023-11-26 11:45:24,056 INFO L899 garLoopResultBuilder]: For program point L627(lines 627 633) no Hoare annotation was computed. [2023-11-26 11:45:24,056 INFO L899 garLoopResultBuilder]: For program point L627-1(lines 627 633) no Hoare annotation was computed. [2023-11-26 11:45:24,056 INFO L899 garLoopResultBuilder]: For program point L326(lines 325 372) no Hoare annotation was computed. [2023-11-26 11:45:24,056 INFO L899 garLoopResultBuilder]: For program point L355(lines 355 368) no Hoare annotation was computed. [2023-11-26 11:45:24,057 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-26 11:45:24,057 INFO L895 garLoopResultBuilder]: At program point L347(line 347) the Hoare annotation is: (let ((.cse5 (= 0 ~systemActive~0))) (let ((.cse4 (= ~methaneLevelCritical~0 0)) (.cse3 (not .cse5)) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (<= 1 ~methaneLevelCritical~0) .cse2 .cse3) (and (<= 1 ~pumpRunning~0) .cse1 .cse4 .cse2 .cse3) (and .cse0 .cse1 .cse4 .cse2 .cse3) (and .cse0 .cse1 .cse2 .cse5)))) [2023-11-26 11:45:24,057 INFO L899 garLoopResultBuilder]: For program point L376(lines 315 380) no Hoare annotation was computed. [2023-11-26 11:45:24,057 INFO L899 garLoopResultBuilder]: For program point L335(lines 335 341) no Hoare annotation was computed. [2023-11-26 11:45:24,057 INFO L899 garLoopResultBuilder]: For program point L335-1(lines 335 341) no Hoare annotation was computed. [2023-11-26 11:45:24,057 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-26 11:45:24,058 INFO L895 garLoopResultBuilder]: At program point L629(line 629) the Hoare annotation is: (and (<= 1 ~pumpRunning~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (not (= 0 ~systemActive~0))) [2023-11-26 11:45:24,058 INFO L895 garLoopResultBuilder]: At program point L373(lines 324 374) the Hoare annotation is: false [2023-11-26 11:45:24,058 INFO L899 garLoopResultBuilder]: For program point L142(lines 142 149) no Hoare annotation was computed. [2023-11-26 11:45:24,058 INFO L899 garLoopResultBuilder]: For program point L142-2(lines 142 149) no Hoare annotation was computed. [2023-11-26 11:45:24,058 INFO L899 garLoopResultBuilder]: For program point L361(lines 361 367) no Hoare annotation was computed. [2023-11-26 11:45:24,059 INFO L895 garLoopResultBuilder]: At program point L361-2(lines 355 368) the Hoare annotation is: (let ((.cse7 (= 0 ~systemActive~0))) (let ((.cse2 (<= 1 ~methaneLevelCritical~0)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse0 (= ~pumpRunning~0 0)) (.cse5 (<= 1 ~pumpRunning~0)) (.cse6 (= ~methaneLevelCritical~0 0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (not .cse7))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse6 .cse3 .cse4) (and .cse0 .cse3 .cse7) (and .cse5 .cse6 .cse3 .cse4)))) [2023-11-26 11:45:24,059 INFO L895 garLoopResultBuilder]: At program point L438(line 438) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= ~methAndRunningLastTime~0 0))) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse2 .cse3 (< ~methaneLevelCritical~0 1)) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 (< |old(~pumpRunning~0)| 1) .cse2))) [2023-11-26 11:45:24,059 INFO L899 garLoopResultBuilder]: For program point L438-1(lines 419 443) no Hoare annotation was computed. [2023-11-26 11:45:24,059 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 419 443) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse3 (not (= ~methAndRunningLastTime~0 0))) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 .cse3 (< ~methaneLevelCritical~0 1)) (or .cse0 .cse1 .cse4 .cse2 .cse3) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse4 (< |old(~pumpRunning~0)| 1) .cse2))) [2023-11-26 11:45:24,060 INFO L899 garLoopResultBuilder]: For program point L294(lines 294 300) no Hoare annotation was computed. [2023-11-26 11:45:24,060 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDry_returnLabel#1(lines 290 303) no Hoare annotation was computed. [2023-11-26 11:45:24,060 INFO L899 garLoopResultBuilder]: For program point L511(lines 511 517) no Hoare annotation was computed. [2023-11-26 11:45:24,060 INFO L895 garLoopResultBuilder]: At program point L509(line 509) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= ~methaneLevelCritical~0 0))) (.cse3 (and (= ~pumpRunning~0 0) (<= 2 ~waterLevel~0))) (.cse1 (= 0 ~systemActive~0)) (.cse4 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 (< |old(~pumpRunning~0)| 1) .cse1) (or .cse2 .cse3 .cse1 .cse4 (< ~methaneLevelCritical~0 1)) (or .cse2 .cse0 .cse3 .cse1 .cse4))) [2023-11-26 11:45:24,060 INFO L899 garLoopResultBuilder]: For program point L511-2(lines 504 520) no Hoare annotation was computed. [2023-11-26 11:45:24,060 INFO L899 garLoopResultBuilder]: For program point L509-1(line 509) no Hoare annotation was computed. [2023-11-26 11:45:24,061 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 419 443) no Hoare annotation was computed. [2023-11-26 11:45:24,061 INFO L899 garLoopResultBuilder]: For program point L594(lines 594 598) no Hoare annotation was computed. [2023-11-26 11:45:24,061 INFO L895 garLoopResultBuilder]: At program point L433(line 433) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (and (= ~pumpRunning~0 0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~3#1| 0))) (.cse0 (not (= ~methaneLevelCritical~0 0))) (.cse1 (= 0 ~systemActive~0)) (.cse4 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 (< |old(~pumpRunning~0)| 1) .cse1) (or .cse2 .cse3 .cse1 .cse4 (< ~methaneLevelCritical~0 1)) (or .cse2 .cse3 .cse0 .cse1 .cse4))) [2023-11-26 11:45:24,061 INFO L899 garLoopResultBuilder]: For program point L594-2(lines 594 598) no Hoare annotation was computed. [2023-11-26 11:45:24,061 INFO L899 garLoopResultBuilder]: For program point L427(lines 427 435) no Hoare annotation was computed. [2023-11-26 11:45:24,062 INFO L899 garLoopResultBuilder]: For program point L423(lines 423 440) no Hoare annotation was computed. [2023-11-26 11:45:24,062 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 225 236) no Hoare annotation was computed. [2023-11-26 11:45:24,062 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 225 236) the Hoare annotation is: (let ((.cse0 (not (= ~methaneLevelCritical~0 0))) (.cse4 (not (= ~pumpRunning~0 0))) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse2 (= 0 ~systemActive~0)) (.cse3 (not (= ~methAndRunningLastTime~0 0)))) (and (or (< ~pumpRunning~0 1) .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse1 .cse2 .cse3 (< ~methaneLevelCritical~0 1)))) [2023-11-26 11:45:24,062 INFO L899 garLoopResultBuilder]: For program point L229-1(lines 225 236) no Hoare annotation was computed. [2023-11-26 11:45:24,062 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 529 539) no Hoare annotation was computed. [2023-11-26 11:45:24,062 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 529 539) the Hoare annotation is: true [2023-11-26 11:45:24,063 INFO L902 garLoopResultBuilder]: At program point L534(line 534) the Hoare annotation is: true [2023-11-26 11:45:24,063 INFO L899 garLoopResultBuilder]: For program point L534-1(line 534) no Hoare annotation was computed. [2023-11-26 11:45:24,065 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:45:24,067 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 11:45:24,080 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 11:45:24 BoogieIcfgContainer [2023-11-26 11:45:24,080 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 11:45:24,081 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 11:45:24,081 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 11:45:24,081 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 11:45:24,082 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:45:02" (3/4) ... [2023-11-26 11:45:24,083 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-26 11:45:24,087 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2023-11-26 11:45:24,087 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2023-11-26 11:45:24,087 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2023-11-26 11:45:24,087 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2023-11-26 11:45:24,087 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2023-11-26 11:45:24,087 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2023-11-26 11:45:24,088 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2023-11-26 11:45:24,088 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2023-11-26 11:45:24,088 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2023-11-26 11:45:24,088 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2023-11-26 11:45:24,097 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 36 nodes and edges [2023-11-26 11:45:24,098 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-26 11:45:24,098 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-26 11:45:24,099 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-26 11:45:24,100 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-26 11:45:24,330 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc3fffc0-4ce3-47a0-895d-d5beb25bf19f/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 11:45:24,330 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc3fffc0-4ce3-47a0-895d-d5beb25bf19f/bin/uautomizer-verify-VRDe98Ueme/witness.yml [2023-11-26 11:45:24,331 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 11:45:24,331 INFO L158 Benchmark]: Toolchain (without parser) took 22891.07ms. Allocated memory was 172.0MB in the beginning and 249.6MB in the end (delta: 77.6MB). Free memory was 142.4MB in the beginning and 156.2MB in the end (delta: -13.8MB). Peak memory consumption was 64.0MB. Max. memory is 16.1GB. [2023-11-26 11:45:24,344 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 134.2MB. Free memory is still 106.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:45:24,345 INFO L158 Benchmark]: CACSL2BoogieTranslator took 603.52ms. Allocated memory is still 172.0MB. Free memory was 142.2MB in the beginning and 125.5MB in the end (delta: 16.6MB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. [2023-11-26 11:45:24,345 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.57ms. Allocated memory is still 172.0MB. Free memory was 125.5MB in the beginning and 123.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:45:24,345 INFO L158 Benchmark]: Boogie Preprocessor took 109.50ms. Allocated memory is still 172.0MB. Free memory was 123.4MB in the beginning and 141.2MB in the end (delta: -17.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 11:45:24,346 INFO L158 Benchmark]: RCFGBuilder took 751.53ms. Allocated memory is still 172.0MB. Free memory was 141.2MB in the beginning and 116.9MB in the end (delta: 24.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-26 11:45:24,346 INFO L158 Benchmark]: TraceAbstraction took 21109.91ms. Allocated memory was 172.0MB in the beginning and 249.6MB in the end (delta: 77.6MB). Free memory was 116.1MB in the beginning and 167.1MB in the end (delta: -50.9MB). Peak memory consumption was 131.3MB. Max. memory is 16.1GB. [2023-11-26 11:45:24,346 INFO L158 Benchmark]: Witness Printer took 250.00ms. Allocated memory is still 249.6MB. Free memory was 167.1MB in the beginning and 156.2MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-26 11:45:24,349 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 134.2MB. Free memory is still 106.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 603.52ms. Allocated memory is still 172.0MB. Free memory was 142.2MB in the beginning and 125.5MB in the end (delta: 16.6MB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.57ms. Allocated memory is still 172.0MB. Free memory was 125.5MB in the beginning and 123.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 109.50ms. Allocated memory is still 172.0MB. Free memory was 123.4MB in the beginning and 141.2MB in the end (delta: -17.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 751.53ms. Allocated memory is still 172.0MB. Free memory was 141.2MB in the beginning and 116.9MB in the end (delta: 24.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 21109.91ms. Allocated memory was 172.0MB in the beginning and 249.6MB in the end (delta: 77.6MB). Free memory was 116.1MB in the beginning and 167.1MB in the end (delta: -50.9MB). Peak memory consumption was 131.3MB. Max. memory is 16.1GB. * Witness Printer took 250.00ms. Allocated memory is still 249.6MB. Free memory was 167.1MB in the beginning and 156.2MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. 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,"Test.i","") [49] - GenericResultAtLocation [Line: 155]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [155] - GenericResultAtLocation [Line: 164]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [164] - GenericResultAtLocation [Line: 205]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [205] - GenericResultAtLocation [Line: 313]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [313] - GenericResultAtLocation [Line: 381]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [381] - GenericResultAtLocation [Line: 638]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [638] - GenericResultAtLocation [Line: 673]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [673] * 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: 160]: 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, 92 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 21.0s, OverallIterations: 12, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 5.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 7.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1835 SdHoareTripleChecker+Valid, 2.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1791 mSDsluCounter, 3516 SdHoareTripleChecker+Invalid, 2.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2284 mSDsCounter, 696 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3055 IncrementalHoareTripleChecker+Invalid, 3751 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 696 mSolverCounterUnsat, 1232 mSDtfsCounter, 3055 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1291 GetRequests, 1097 SyntacticMatches, 2 SemanticMatches, 192 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5434 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1578occurred in iteration=11, InterpolantAutomatonStates: 158, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 12 MinimizatonAttempts, 497 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 31 LocationsWithAnnotation, 1840 PreInvPairs, 2086 NumberOfFragments, 1688 HoareAnnotationTreeSize, 1840 FomulaSimplifications, 5377 FormulaSimplificationTreeSizeReduction, 0.8s HoareSimplificationTime, 31 FomulaSimplificationsInter, 20854 FormulaSimplificationTreeSizeReductionInter, 6.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 1646 NumberOfCodeBlocks, 1646 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 1726 ConstructedInterpolants, 0 QuantifiedInterpolants, 2705 SizeOfPredicates, 11 NumberOfNonLiveVariables, 2828 ConjunctsInSsa, 47 ConjunctsInUnsatCore, 21 InterpolantComputations, 11 PerfectInterpolantSequences, 803/866 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: 325]: Loop Invariant Derived loop invariant: ((((((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (splverifierCounter == 0)) && !((0 == systemActive))) || (((((1 <= pumpRunning) && (methAndRunningLastTime == 0)) && (methaneLevelCritical == 0)) && (splverifierCounter == 0)) && !((0 == systemActive)))) || (((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (methaneLevelCritical == 0)) && (splverifierCounter == 0)) && !((0 == systemActive)))) || ((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (splverifierCounter == 0)) && (0 == systemActive))) - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 324]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2023-11-26 11:45:24,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc3fffc0-4ce3-47a0-895d-d5beb25bf19f/bin/uautomizer-verify-VRDe98Ueme/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