./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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad2d049-9f81-47a9-9ce0-d14860a2e104/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad2d049-9f81-47a9-9ce0-d14860a2e104/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad2d049-9f81-47a9-9ce0-d14860a2e104/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad2d049-9f81-47a9-9ce0-d14860a2e104/bin/uautomizer-verify-BQ2R08f2Ya/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_8ad2d049-9f81-47a9-9ce0-d14860a2e104/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad2d049-9f81-47a9-9ce0-d14860a2e104/bin/uautomizer-verify-BQ2R08f2Ya --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 [2023-11-29 01:32:50,666 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 01:32:50,736 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad2d049-9f81-47a9-9ce0-d14860a2e104/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 01:32:50,741 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 01:32:50,741 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 01:32:50,766 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 01:32:50,766 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 01:32:50,767 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 01:32:50,768 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 01:32:50,768 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 01:32:50,769 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 01:32:50,769 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 01:32:50,770 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 01:32:50,770 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 01:32:50,771 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 01:32:50,772 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 01:32:50,772 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 01:32:50,773 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 01:32:50,773 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 01:32:50,774 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 01:32:50,774 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 01:32:50,775 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 01:32:50,775 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 01:32:50,776 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 01:32:50,776 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 01:32:50,777 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 01:32:50,777 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 01:32:50,778 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 01:32:50,778 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 01:32:50,778 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 01:32:50,779 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 01:32:50,779 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:32:50,779 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 01:32:50,780 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 01:32:50,780 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 01:32:50,780 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 01:32:50,780 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 01:32:50,780 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 01:32:50,780 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 01:32:50,781 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 01:32:50,781 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 01:32:50,781 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 01:32:50,781 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_8ad2d049-9f81-47a9-9ce0-d14860a2e104/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad2d049-9f81-47a9-9ce0-d14860a2e104/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bff509ff7af2b9788fd6216f7196709183d48c973cf9a066c9793f96467b2abf [2023-11-29 01:32:51,028 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 01:32:51,049 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 01:32:51,051 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 01:32:51,052 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 01:32:51,053 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 01:32:51,054 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad2d049-9f81-47a9-9ce0-d14860a2e104/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/product-lines/minepump_spec2_product63.cil.c [2023-11-29 01:32:53,753 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 01:32:53,960 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 01:32:53,960 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad2d049-9f81-47a9-9ce0-d14860a2e104/sv-benchmarks/c/product-lines/minepump_spec2_product63.cil.c [2023-11-29 01:32:53,972 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad2d049-9f81-47a9-9ce0-d14860a2e104/bin/uautomizer-verify-BQ2R08f2Ya/data/83910ffdc/ccd52066d254478d82089f70951d1f75/FLAG8ebe60fa1 [2023-11-29 01:32:53,992 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad2d049-9f81-47a9-9ce0-d14860a2e104/bin/uautomizer-verify-BQ2R08f2Ya/data/83910ffdc/ccd52066d254478d82089f70951d1f75 [2023-11-29 01:32:53,994 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 01:32:53,996 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 01:32:53,997 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 01:32:53,997 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 01:32:54,002 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 01:32:54,003 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:32:53" (1/1) ... [2023-11-29 01:32:54,004 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e829e00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:32:54, skipping insertion in model container [2023-11-29 01:32:54,004 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:32:53" (1/1) ... [2023-11-29 01:32:54,061 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 01:32:54,204 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_8ad2d049-9f81-47a9-9ce0-d14860a2e104/sv-benchmarks/c/product-lines/minepump_spec2_product63.cil.c[2985,2998] [2023-11-29 01:32:54,292 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:32:54,302 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 01:32:54,310 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [49] [2023-11-29 01:32:54,311 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [155] [2023-11-29 01:32:54,311 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [164] [2023-11-29 01:32:54,312 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [205] [2023-11-29 01:32:54,312 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [313] [2023-11-29 01:32:54,312 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [381] [2023-11-29 01:32:54,312 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [638] [2023-11-29 01:32:54,312 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [673] [2023-11-29 01:32:54,321 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_8ad2d049-9f81-47a9-9ce0-d14860a2e104/sv-benchmarks/c/product-lines/minepump_spec2_product63.cil.c[2985,2998] [2023-11-29 01:32:54,370 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:32:54,388 INFO L206 MainTranslator]: Completed translation [2023-11-29 01:32:54,389 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:32:54 WrapperNode [2023-11-29 01:32:54,389 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 01:32:54,390 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 01:32:54,390 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 01:32:54,390 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 01:32:54,396 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:32:54" (1/1) ... [2023-11-29 01:32:54,409 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:32:54" (1/1) ... [2023-11-29 01:32:54,434 INFO L138 Inliner]: procedures = 59, calls = 107, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 228 [2023-11-29 01:32:54,435 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 01:32:54,435 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 01:32:54,436 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 01:32:54,436 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 01:32:54,445 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:32:54" (1/1) ... [2023-11-29 01:32:54,445 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:32:54" (1/1) ... [2023-11-29 01:32:54,448 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:32:54" (1/1) ... [2023-11-29 01:32:54,463 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]. [2023-11-29 01:32:54,464 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:32:54" (1/1) ... [2023-11-29 01:32:54,464 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:32:54" (1/1) ... [2023-11-29 01:32:54,470 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:32:54" (1/1) ... [2023-11-29 01:32:54,475 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:32:54" (1/1) ... [2023-11-29 01:32:54,477 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:32:54" (1/1) ... [2023-11-29 01:32:54,478 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:32:54" (1/1) ... [2023-11-29 01:32:54,481 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 01:32:54,482 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 01:32:54,482 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 01:32:54,482 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 01:32:54,483 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:32:54" (1/1) ... [2023-11-29 01:32:54,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:32:54,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad2d049-9f81-47a9-9ce0-d14860a2e104/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:32:54,514 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad2d049-9f81-47a9-9ce0-d14860a2e104/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 01:32:54,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad2d049-9f81-47a9-9ce0-d14860a2e104/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 01:32:54,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 01:32:54,555 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-11-29 01:32:54,555 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-11-29 01:32:54,556 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-11-29 01:32:54,556 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-11-29 01:32:54,556 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-29 01:32:54,556 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-29 01:32:54,556 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-29 01:32:54,556 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-29 01:32:54,556 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-11-29 01:32:54,557 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-11-29 01:32:54,557 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-29 01:32:54,557 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-29 01:32:54,557 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2023-11-29 01:32:54,557 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2023-11-29 01:32:54,557 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-11-29 01:32:54,557 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-11-29 01:32:54,558 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-11-29 01:32:54,558 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-11-29 01:32:54,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 01:32:54,558 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-29 01:32:54,558 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-29 01:32:54,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 01:32:54,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 01:32:54,637 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 01:32:54,639 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 01:32:54,892 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 01:32:54,943 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 01:32:54,944 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-29 01:32:54,944 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:32:54 BoogieIcfgContainer [2023-11-29 01:32:54,944 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 01:32:54,947 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 01:32:54,947 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 01:32:54,950 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 01:32:54,950 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 01:32:53" (1/3) ... [2023-11-29 01:32:54,951 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6becd25a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:32:54, skipping insertion in model container [2023-11-29 01:32:54,951 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:32:54" (2/3) ... [2023-11-29 01:32:54,951 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6becd25a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:32:54, skipping insertion in model container [2023-11-29 01:32:54,951 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:32:54" (3/3) ... [2023-11-29 01:32:54,952 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product63.cil.c [2023-11-29 01:32:54,967 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 01:32:54,967 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 01:32:55,012 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 01:32:55,017 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;@2235a795, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 01:32:55,018 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 01:32:55,021 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) [2023-11-29 01:32:55,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-29 01:32:55,029 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:32:55,030 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:32:55,030 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:32:55,035 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:32:55,035 INFO L85 PathProgramCache]: Analyzing trace with hash -80666079, now seen corresponding path program 1 times [2023-11-29 01:32:55,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:32:55,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300222822] [2023-11-29 01:32:55,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:32:55,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:32:55,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:55,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 01:32:55,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:55,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:32:55,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:32:55,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300222822] [2023-11-29 01:32:55,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300222822] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:32:55,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:32:55,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:32:55,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103914147] [2023-11-29 01:32:55,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:32:55,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 01:32:55,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:32:55,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 01:32:55,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 01:32:55,241 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) [2023-11-29 01:32:55,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:32:55,301 INFO L93 Difference]: Finished difference Result 182 states and 261 transitions. [2023-11-29 01:32:55,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 01:32:55,303 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 [2023-11-29 01:32:55,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:32:55,313 INFO L225 Difference]: With dead ends: 182 [2023-11-29 01:32:55,313 INFO L226 Difference]: Without dead ends: 87 [2023-11-29 01:32:55,319 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 [2023-11-29 01:32:55,323 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, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:32:55,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 109 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:32:55,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2023-11-29 01:32:55,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2023-11-29 01:32:55,363 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) [2023-11-29 01:32:55,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 119 transitions. [2023-11-29 01:32:55,368 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 119 transitions. Word has length 17 [2023-11-29 01:32:55,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:32:55,368 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 119 transitions. [2023-11-29 01:32:55,369 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) [2023-11-29 01:32:55,369 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 119 transitions. [2023-11-29 01:32:55,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-29 01:32:55,371 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:32:55,372 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:32:55,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 01:32:55,372 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:32:55,373 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:32:55,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1437964939, now seen corresponding path program 1 times [2023-11-29 01:32:55,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:32:55,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807465305] [2023-11-29 01:32:55,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:32:55,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:32:55,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:55,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 01:32:55,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:55,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:32:55,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:32:55,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807465305] [2023-11-29 01:32:55,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807465305] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:32:55,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:32:55,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:32:55,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818836597] [2023-11-29 01:32:55,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:32:55,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:32:55,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:32:55,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:32:55,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:32:55,473 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) [2023-11-29 01:32:55,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:32:55,514 INFO L93 Difference]: Finished difference Result 144 states and 196 transitions. [2023-11-29 01:32:55,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:32:55,515 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 [2023-11-29 01:32:55,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:32:55,517 INFO L225 Difference]: With dead ends: 144 [2023-11-29 01:32:55,517 INFO L226 Difference]: Without dead ends: 79 [2023-11-29 01:32:55,518 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 [2023-11-29 01:32:55,520 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 [2023-11-29 01:32:55,520 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] [2023-11-29 01:32:55,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2023-11-29 01:32:55,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2023-11-29 01:32:55,531 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) [2023-11-29 01:32:55,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 108 transitions. [2023-11-29 01:32:55,533 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 108 transitions. Word has length 18 [2023-11-29 01:32:55,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:32:55,533 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 108 transitions. [2023-11-29 01:32:55,534 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) [2023-11-29 01:32:55,534 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 108 transitions. [2023-11-29 01:32:55,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-29 01:32:55,536 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:32:55,536 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] [2023-11-29 01:32:55,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 01:32:55,536 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:32:55,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:32:55,537 INFO L85 PathProgramCache]: Analyzing trace with hash 139538423, now seen corresponding path program 1 times [2023-11-29 01:32:55,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:32:55,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999010915] [2023-11-29 01:32:55,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:32:55,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:32:55,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:55,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 01:32:55,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:55,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:32:55,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:32:55,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999010915] [2023-11-29 01:32:55,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999010915] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:32:55,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:32:55,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:32:55,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497277567] [2023-11-29 01:32:55,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:32:55,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:32:55,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:32:55,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:32:55,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:32:55,689 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) [2023-11-29 01:32:55,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:32:55,835 INFO L93 Difference]: Finished difference Result 208 states and 290 transitions. [2023-11-29 01:32:55,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:32:55,836 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 [2023-11-29 01:32:55,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:32:55,838 INFO L225 Difference]: With dead ends: 208 [2023-11-29 01:32:55,838 INFO L226 Difference]: Without dead ends: 131 [2023-11-29 01:32:55,840 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 [2023-11-29 01:32:55,841 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 [2023-11-29 01:32:55,842 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] [2023-11-29 01:32:55,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2023-11-29 01:32:55,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 114. [2023-11-29 01:32:55,861 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) [2023-11-29 01:32:55,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 156 transitions. [2023-11-29 01:32:55,863 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 156 transitions. Word has length 21 [2023-11-29 01:32:55,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:32:55,863 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 156 transitions. [2023-11-29 01:32:55,863 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) [2023-11-29 01:32:55,864 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 156 transitions. [2023-11-29 01:32:55,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-29 01:32:55,866 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:32:55,866 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] [2023-11-29 01:32:55,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 01:32:55,866 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:32:55,867 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:32:55,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1743862495, now seen corresponding path program 1 times [2023-11-29 01:32:55,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:32:55,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538444496] [2023-11-29 01:32:55,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:32:55,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:32:55,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:55,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-29 01:32:55,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:55,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:32:55,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:32:55,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538444496] [2023-11-29 01:32:55,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538444496] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:32:55,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:32:55,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:32:55,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633360448] [2023-11-29 01:32:55,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:32:55,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:32:55,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:32:55,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:32:55,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:32:55,945 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) [2023-11-29 01:32:56,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:32:56,006 INFO L93 Difference]: Finished difference Result 226 states and 316 transitions. [2023-11-29 01:32:56,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:32:56,007 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 [2023-11-29 01:32:56,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:32:56,011 INFO L225 Difference]: With dead ends: 226 [2023-11-29 01:32:56,011 INFO L226 Difference]: Without dead ends: 224 [2023-11-29 01:32:56,012 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 [2023-11-29 01:32:56,013 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 [2023-11-29 01:32:56,014 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] [2023-11-29 01:32:56,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2023-11-29 01:32:56,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2023-11-29 01:32:56,044 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) [2023-11-29 01:32:56,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 313 transitions. [2023-11-29 01:32:56,047 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 313 transitions. Word has length 24 [2023-11-29 01:32:56,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:32:56,047 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 313 transitions. [2023-11-29 01:32:56,048 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) [2023-11-29 01:32:56,048 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 313 transitions. [2023-11-29 01:32:56,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-29 01:32:56,051 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:32:56,051 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] [2023-11-29 01:32:56,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 01:32:56,051 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:32:56,052 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:32:56,052 INFO L85 PathProgramCache]: Analyzing trace with hash 388527775, now seen corresponding path program 1 times [2023-11-29 01:32:56,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:32:56,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861575253] [2023-11-29 01:32:56,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:32:56,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:32:56,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:56,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 01:32:56,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:56,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 01:32:56,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:56,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 01:32:56,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:56,229 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 01:32:56,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:32:56,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861575253] [2023-11-29 01:32:56,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861575253] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:32:56,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1023854570] [2023-11-29 01:32:56,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:32:56,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:32:56,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad2d049-9f81-47a9-9ce0-d14860a2e104/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:32:56,234 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad2d049-9f81-47a9-9ce0-d14860a2e104/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:32:56,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad2d049-9f81-47a9-9ce0-d14860a2e104/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 01:32:56,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:56,320 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 01:32:56,325 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:32:56,375 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 01:32:56,375 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:32:56,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1023854570] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:32:56,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:32:56,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2023-11-29 01:32:56,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720864624] [2023-11-29 01:32:56,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:32:56,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:32:56,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:32:56,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:32:56,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:32:56,377 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) [2023-11-29 01:32:56,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:32:56,475 INFO L93 Difference]: Finished difference Result 489 states and 702 transitions. [2023-11-29 01:32:56,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:32:56,476 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 [2023-11-29 01:32:56,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:32:56,479 INFO L225 Difference]: With dead ends: 489 [2023-11-29 01:32:56,479 INFO L226 Difference]: Without dead ends: 267 [2023-11-29 01:32:56,481 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 [2023-11-29 01:32:56,482 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 [2023-11-29 01:32:56,482 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] [2023-11-29 01:32:56,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2023-11-29 01:32:56,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 253. [2023-11-29 01:32:56,529 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) [2023-11-29 01:32:56,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 340 transitions. [2023-11-29 01:32:56,533 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 340 transitions. Word has length 44 [2023-11-29 01:32:56,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:32:56,533 INFO L495 AbstractCegarLoop]: Abstraction has 253 states and 340 transitions. [2023-11-29 01:32:56,533 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) [2023-11-29 01:32:56,533 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 340 transitions. [2023-11-29 01:32:56,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-29 01:32:56,538 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:32:56,538 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] [2023-11-29 01:32:56,549 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad2d049-9f81-47a9-9ce0-d14860a2e104/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 01:32:56,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad2d049-9f81-47a9-9ce0-d14860a2e104/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:32:56,749 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:32:56,749 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:32:56,749 INFO L85 PathProgramCache]: Analyzing trace with hash 72701239, now seen corresponding path program 1 times [2023-11-29 01:32:56,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:32:56,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374861847] [2023-11-29 01:32:56,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:32:56,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:32:56,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:56,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 01:32:56,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:56,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 01:32:56,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:56,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:32:56,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:56,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 01:32:56,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:56,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:32:56,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:56,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-29 01:32:56,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:56,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-29 01:32:56,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:56,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:32:56,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:56,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 01:32:56,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:56,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:32:56,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:56,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-29 01:32:56,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:56,921 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 12 proven. 10 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-11-29 01:32:56,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:32:56,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374861847] [2023-11-29 01:32:56,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374861847] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:32:56,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1071023148] [2023-11-29 01:32:56,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:32:56,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:32:56,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad2d049-9f81-47a9-9ce0-d14860a2e104/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:32:56,924 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad2d049-9f81-47a9-9ce0-d14860a2e104/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:32:56,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad2d049-9f81-47a9-9ce0-d14860a2e104/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 01:32:57,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:57,028 INFO L262 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 01:32:57,032 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:32:57,091 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 01:32:57,092 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:32:57,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1071023148] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:32:57,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:32:57,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-11-29 01:32:57,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341892038] [2023-11-29 01:32:57,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:32:57,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:32:57,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:32:57,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:32:57,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:32:57,095 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) [2023-11-29 01:32:57,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:32:57,158 INFO L93 Difference]: Finished difference Result 503 states and 689 transitions. [2023-11-29 01:32:57,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:32:57,159 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 [2023-11-29 01:32:57,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:32:57,161 INFO L225 Difference]: With dead ends: 503 [2023-11-29 01:32:57,161 INFO L226 Difference]: Without dead ends: 252 [2023-11-29 01:32:57,162 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:32:57,163 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 [2023-11-29 01:32:57,164 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] [2023-11-29 01:32:57,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2023-11-29 01:32:57,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2023-11-29 01:32:57,187 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) [2023-11-29 01:32:57,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 327 transitions. [2023-11-29 01:32:57,189 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 327 transitions. Word has length 95 [2023-11-29 01:32:57,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:32:57,190 INFO L495 AbstractCegarLoop]: Abstraction has 252 states and 327 transitions. [2023-11-29 01:32:57,190 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) [2023-11-29 01:32:57,191 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 327 transitions. [2023-11-29 01:32:57,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-29 01:32:57,193 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:32:57,193 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] [2023-11-29 01:32:57,198 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad2d049-9f81-47a9-9ce0-d14860a2e104/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 01:32:57,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad2d049-9f81-47a9-9ce0-d14860a2e104/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:32:57,394 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:32:57,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:32:57,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1589769726, now seen corresponding path program 1 times [2023-11-29 01:32:57,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:32:57,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754377150] [2023-11-29 01:32:57,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:32:57,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:32:57,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:57,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 01:32:57,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:57,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 01:32:57,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:57,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:32:57,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:57,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 01:32:57,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:57,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:32:57,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:57,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-29 01:32:57,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:57,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-29 01:32:57,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:57,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:32:57,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:57,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-29 01:32:57,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:57,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 01:32:57,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:57,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:32:57,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:57,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-29 01:32:57,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:57,565 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-29 01:32:57,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:32:57,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754377150] [2023-11-29 01:32:57,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754377150] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:32:57,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [399597150] [2023-11-29 01:32:57,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:32:57,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:32:57,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad2d049-9f81-47a9-9ce0-d14860a2e104/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:32:57,568 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad2d049-9f81-47a9-9ce0-d14860a2e104/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:32:57,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad2d049-9f81-47a9-9ce0-d14860a2e104/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 01:32:57,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:57,671 INFO L262 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 01:32:57,676 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:32:57,689 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-11-29 01:32:57,689 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:32:57,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [399597150] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:32:57,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:32:57,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 7 [2023-11-29 01:32:57,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591161801] [2023-11-29 01:32:57,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:32:57,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:32:57,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:32:57,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:32:57,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:32:57,692 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) [2023-11-29 01:32:57,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:32:57,745 INFO L93 Difference]: Finished difference Result 478 states and 620 transitions. [2023-11-29 01:32:57,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:32:57,746 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 [2023-11-29 01:32:57,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:32:57,748 INFO L225 Difference]: With dead ends: 478 [2023-11-29 01:32:57,748 INFO L226 Difference]: Without dead ends: 188 [2023-11-29 01:32:57,749 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 [2023-11-29 01:32:57,750 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 [2023-11-29 01:32:57,750 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] [2023-11-29 01:32:57,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2023-11-29 01:32:57,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2023-11-29 01:32:57,769 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) [2023-11-29 01:32:57,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 234 transitions. [2023-11-29 01:32:57,770 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 234 transitions. Word has length 100 [2023-11-29 01:32:57,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:32:57,771 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 234 transitions. [2023-11-29 01:32:57,771 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) [2023-11-29 01:32:57,771 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 234 transitions. [2023-11-29 01:32:57,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-29 01:32:57,773 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:32:57,773 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] [2023-11-29 01:32:57,778 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad2d049-9f81-47a9-9ce0-d14860a2e104/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-29 01:32:57,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad2d049-9f81-47a9-9ce0-d14860a2e104/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:32:57,974 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:32:57,974 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:32:57,974 INFO L85 PathProgramCache]: Analyzing trace with hash -443917542, now seen corresponding path program 1 times [2023-11-29 01:32:57,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:32:57,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896493570] [2023-11-29 01:32:57,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:32:57,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:32:57,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:58,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 01:32:58,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:58,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 01:32:58,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:58,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:32:58,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:58,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 01:32:58,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:58,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:32:58,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:58,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-29 01:32:58,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:58,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 01:32:58,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:58,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:32:58,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:58,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-29 01:32:58,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:58,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 01:32:58,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:58,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:32:58,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:58,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-29 01:32:58,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:58,134 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-29 01:32:58,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:32:58,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896493570] [2023-11-29 01:32:58,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896493570] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:32:58,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [689533153] [2023-11-29 01:32:58,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:32:58,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:32:58,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad2d049-9f81-47a9-9ce0-d14860a2e104/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:32:58,138 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad2d049-9f81-47a9-9ce0-d14860a2e104/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:32:58,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad2d049-9f81-47a9-9ce0-d14860a2e104/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 01:32:58,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:58,239 INFO L262 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 01:32:58,242 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:32:58,254 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-29 01:32:58,254 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:32:58,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [689533153] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:32:58,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:32:58,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 6 [2023-11-29 01:32:58,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596437272] [2023-11-29 01:32:58,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:32:58,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:32:58,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:32:58,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:32:58,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:32:58,256 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) [2023-11-29 01:32:58,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:32:58,302 INFO L93 Difference]: Finished difference Result 378 states and 478 transitions. [2023-11-29 01:32:58,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:32:58,303 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 [2023-11-29 01:32:58,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:32:58,304 INFO L225 Difference]: With dead ends: 378 [2023-11-29 01:32:58,304 INFO L226 Difference]: Without dead ends: 192 [2023-11-29 01:32:58,305 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 [2023-11-29 01:32:58,306 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 [2023-11-29 01:32:58,306 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] [2023-11-29 01:32:58,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2023-11-29 01:32:58,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 190. [2023-11-29 01:32:58,320 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) [2023-11-29 01:32:58,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 236 transitions. [2023-11-29 01:32:58,322 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 236 transitions. Word has length 97 [2023-11-29 01:32:58,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:32:58,322 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 236 transitions. [2023-11-29 01:32:58,322 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) [2023-11-29 01:32:58,323 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 236 transitions. [2023-11-29 01:32:58,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-29 01:32:58,324 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:32:58,324 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] [2023-11-29 01:32:58,329 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad2d049-9f81-47a9-9ce0-d14860a2e104/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 01:32:58,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad2d049-9f81-47a9-9ce0-d14860a2e104/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:32:58,528 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:32:58,528 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:32:58,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1773712856, now seen corresponding path program 1 times [2023-11-29 01:32:58,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:32:58,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259751618] [2023-11-29 01:32:58,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:32:58,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:32:58,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:58,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 01:32:58,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:58,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 01:32:58,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:58,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:32:58,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:58,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 01:32:58,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:58,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:32:58,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:58,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-29 01:32:58,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:58,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 01:32:58,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:58,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:32:58,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:58,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-29 01:32:58,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:58,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 01:32:58,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:58,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:32:58,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:58,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-29 01:32:58,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:58,778 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 17 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-29 01:32:58,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:32:58,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259751618] [2023-11-29 01:32:58,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259751618] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:32:58,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [609899493] [2023-11-29 01:32:58,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:32:58,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:32:58,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad2d049-9f81-47a9-9ce0-d14860a2e104/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:32:58,780 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad2d049-9f81-47a9-9ce0-d14860a2e104/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:32:58,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad2d049-9f81-47a9-9ce0-d14860a2e104/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 01:32:58,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:58,878 INFO L262 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 01:32:58,881 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:32:58,893 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-29 01:32:58,893 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:32:58,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [609899493] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:32:58,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:32:58,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [11] total 11 [2023-11-29 01:32:58,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020193914] [2023-11-29 01:32:58,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:32:58,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:32:58,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:32:58,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:32:58,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-11-29 01:32:58,895 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) [2023-11-29 01:32:58,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:32:58,953 INFO L93 Difference]: Finished difference Result 385 states and 486 transitions. [2023-11-29 01:32:58,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:32:58,954 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 [2023-11-29 01:32:58,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:32:58,956 INFO L225 Difference]: With dead ends: 385 [2023-11-29 01:32:58,956 INFO L226 Difference]: Without dead ends: 197 [2023-11-29 01:32:58,957 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 [2023-11-29 01:32:58,957 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 [2023-11-29 01:32:58,957 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] [2023-11-29 01:32:58,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2023-11-29 01:32:58,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 192. [2023-11-29 01:32:58,973 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) [2023-11-29 01:32:58,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 238 transitions. [2023-11-29 01:32:58,974 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 238 transitions. Word has length 97 [2023-11-29 01:32:58,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:32:58,975 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 238 transitions. [2023-11-29 01:32:58,975 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) [2023-11-29 01:32:58,975 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 238 transitions. [2023-11-29 01:32:58,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-29 01:32:58,976 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:32:58,976 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] [2023-11-29 01:32:58,983 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad2d049-9f81-47a9-9ce0-d14860a2e104/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 01:32:59,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad2d049-9f81-47a9-9ce0-d14860a2e104/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:32:59,182 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:32:59,183 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:32:59,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1682220778, now seen corresponding path program 1 times [2023-11-29 01:32:59,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:32:59,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565395464] [2023-11-29 01:32:59,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:32:59,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:32:59,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:59,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 01:32:59,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:59,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 01:32:59,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:59,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:32:59,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:59,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 01:32:59,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:59,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:32:59,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:59,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-29 01:32:59,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:59,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 01:32:59,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:59,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:32:59,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:59,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-29 01:32:59,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:59,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 01:32:59,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:59,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:32:59,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:59,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-29 01:32:59,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:59,528 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 16 proven. 10 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 01:32:59,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:32:59,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565395464] [2023-11-29 01:32:59,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565395464] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:32:59,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [562451866] [2023-11-29 01:32:59,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:32:59,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:32:59,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad2d049-9f81-47a9-9ce0-d14860a2e104/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:32:59,529 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad2d049-9f81-47a9-9ce0-d14860a2e104/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:32:59,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad2d049-9f81-47a9-9ce0-d14860a2e104/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 01:32:59,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:59,630 INFO L262 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 01:32:59,632 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:32:59,773 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 01:32:59,773 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:32:59,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [562451866] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:32:59,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:32:59,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [13] total 16 [2023-11-29 01:32:59,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976117540] [2023-11-29 01:32:59,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:32:59,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:32:59,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:32:59,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:32:59,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2023-11-29 01:32:59,776 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) [2023-11-29 01:33:00,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:33:00,146 INFO L93 Difference]: Finished difference Result 645 states and 840 transitions. [2023-11-29 01:33:00,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:33:00,147 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 [2023-11-29 01:33:00,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:33:00,150 INFO L225 Difference]: With dead ends: 645 [2023-11-29 01:33:00,150 INFO L226 Difference]: Without dead ends: 455 [2023-11-29 01:33:00,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2023-11-29 01:33:00,152 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 [2023-11-29 01:33:00,152 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] [2023-11-29 01:33:00,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2023-11-29 01:33:00,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 443. [2023-11-29 01:33:00,183 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) [2023-11-29 01:33:00,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 561 transitions. [2023-11-29 01:33:00,185 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 561 transitions. Word has length 97 [2023-11-29 01:33:00,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:33:00,186 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 561 transitions. [2023-11-29 01:33:00,186 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) [2023-11-29 01:33:00,186 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 561 transitions. [2023-11-29 01:33:00,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-29 01:33:00,188 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:33:00,188 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] [2023-11-29 01:33:00,193 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad2d049-9f81-47a9-9ce0-d14860a2e104/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 01:33:00,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad2d049-9f81-47a9-9ce0-d14860a2e104/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 01:33:00,389 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:33:00,389 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:33:00,389 INFO L85 PathProgramCache]: Analyzing trace with hash 769646448, now seen corresponding path program 1 times [2023-11-29 01:33:00,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:33:00,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784695392] [2023-11-29 01:33:00,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:33:00,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:33:00,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:33:00,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 01:33:00,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:33:00,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 01:33:00,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:33:00,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 01:33:00,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:33:00,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:33:00,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:33:00,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 01:33:00,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:33:00,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:33:00,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:33:00,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-29 01:33:00,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:33:00,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-29 01:33:00,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:33:00,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:33:00,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:33:00,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-29 01:33:00,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:33:00,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 01:33:00,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:33:00,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:33:00,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:33:00,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-29 01:33:00,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:33:00,692 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 16 proven. 10 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 01:33:00,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:33:00,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784695392] [2023-11-29 01:33:00,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784695392] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:33:00,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1371278269] [2023-11-29 01:33:00,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:33:00,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:33:00,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad2d049-9f81-47a9-9ce0-d14860a2e104/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:33:00,693 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad2d049-9f81-47a9-9ce0-d14860a2e104/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:33:00,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad2d049-9f81-47a9-9ce0-d14860a2e104/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 01:33:00,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:33:00,801 INFO L262 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 01:33:00,804 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:33:00,917 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 32 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 01:33:00,917 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:33:01,138 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-29 01:33:01,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1371278269] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:33:01,138 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 01:33:01,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 5, 6] total 19 [2023-11-29 01:33:01,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336629397] [2023-11-29 01:33:01,138 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 01:33:01,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-29 01:33:01,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:33:01,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-29 01:33:01,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2023-11-29 01:33:01,141 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) [2023-11-29 01:33:04,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:33:04,519 INFO L93 Difference]: Finished difference Result 2466 states and 3363 transitions. [2023-11-29 01:33:04,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2023-11-29 01:33:04,520 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 [2023-11-29 01:33:04,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:33:04,534 INFO L225 Difference]: With dead ends: 2466 [2023-11-29 01:33:04,534 INFO L226 Difference]: Without dead ends: 2025 [2023-11-29 01:33:04,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 242 SyntacticMatches, 2 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5363 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1784, Invalid=12736, Unknown=0, NotChecked=0, Total=14520 [2023-11-29 01:33:04,543 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 1158 mSDsluCounter, 895 mSDsCounter, 0 mSdLazyCounter, 2126 mSolverCounterSat, 594 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1177 SdHoareTripleChecker+Valid, 985 SdHoareTripleChecker+Invalid, 2720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 594 IncrementalHoareTripleChecker+Valid, 2126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 01:33:04,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1177 Valid, 985 Invalid, 2720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [594 Valid, 2126 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 01:33:04,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2025 states. [2023-11-29 01:33:04,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2025 to 1578. [2023-11-29 01:33:04,707 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) [2023-11-29 01:33:04,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 1973 transitions. [2023-11-29 01:33:04,720 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 1973 transitions. Word has length 101 [2023-11-29 01:33:04,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:33:04,721 INFO L495 AbstractCegarLoop]: Abstraction has 1578 states and 1973 transitions. [2023-11-29 01:33:04,721 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) [2023-11-29 01:33:04,721 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 1973 transitions. [2023-11-29 01:33:04,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-11-29 01:33:04,726 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:33:04,726 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] [2023-11-29 01:33:04,731 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad2d049-9f81-47a9-9ce0-d14860a2e104/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-29 01:33:04,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad2d049-9f81-47a9-9ce0-d14860a2e104/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-29 01:33:04,927 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:33:04,927 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:33:04,927 INFO L85 PathProgramCache]: Analyzing trace with hash -575000107, now seen corresponding path program 1 times [2023-11-29 01:33:04,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:33:04,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35973209] [2023-11-29 01:33:04,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:33:04,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:33:04,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:33:05,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 01:33:05,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:33:05,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 01:33:05,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:33:05,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 01:33:05,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:33:05,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:33:05,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:33:05,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 01:33:05,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:33:05,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:33:05,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:33:05,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-29 01:33:05,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:33:05,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-29 01:33:05,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:33:05,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 01:33:05,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:33:05,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 01:33:05,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:33:05,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:33:05,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:33:05,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 01:33:05,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:33:05,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 01:33:05,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:33:05,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:33:05,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:33:05,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-29 01:33:05,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:33:05,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-29 01:33:05,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:33:05,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:33:05,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:33:05,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-29 01:33:05,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:33:05,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 01:33:05,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:33:05,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:33:05,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:33:05,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-11-29 01:33:05,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:33:05,282 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 54 proven. 6 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2023-11-29 01:33:05,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:33:05,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35973209] [2023-11-29 01:33:05,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35973209] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:33:05,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [117869382] [2023-11-29 01:33:05,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:33:05,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:33:05,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad2d049-9f81-47a9-9ce0-d14860a2e104/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:33:05,284 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad2d049-9f81-47a9-9ce0-d14860a2e104/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:33:05,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad2d049-9f81-47a9-9ce0-d14860a2e104/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 01:33:05,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:33:05,397 INFO L262 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 01:33:05,401 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:33:05,544 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 01:33:05,544 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:33:05,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [117869382] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:33:05,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:33:05,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [17] total 22 [2023-11-29 01:33:05,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228207632] [2023-11-29 01:33:05,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:33:05,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:33:05,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:33:05,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:33:05,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=408, Unknown=0, NotChecked=0, Total=462 [2023-11-29 01:33:05,547 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) [2023-11-29 01:33:05,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:33:05,778 INFO L93 Difference]: Finished difference Result 2771 states and 3444 transitions. [2023-11-29 01:33:05,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:33:05,779 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 [2023-11-29 01:33:05,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:33:05,780 INFO L225 Difference]: With dead ends: 2771 [2023-11-29 01:33:05,780 INFO L226 Difference]: Without dead ends: 0 [2023-11-29 01:33:05,787 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 [2023-11-29 01:33:05,788 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 [2023-11-29 01:33:05,788 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] [2023-11-29 01:33:05,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-29 01:33:05,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-29 01:33:05,789 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) [2023-11-29 01:33:05,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 01:33:05,790 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 152 [2023-11-29 01:33:05,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:33:05,790 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 01:33:05,790 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) [2023-11-29 01:33:05,790 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-29 01:33:05,791 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-29 01:33:05,793 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 01:33:05,799 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad2d049-9f81-47a9-9ce0-d14860a2e104/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-29 01:33:05,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad2d049-9f81-47a9-9ce0-d14860a2e104/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:33:06,002 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-29 01:33:11,527 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 521 528) no Hoare annotation was computed. [2023-11-29 01:33:11,528 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))) [2023-11-29 01:33:11,528 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 411 417) no Hoare annotation was computed. [2023-11-29 01:33:11,528 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 411 417) the Hoare annotation is: true [2023-11-29 01:33:11,529 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))) [2023-11-29 01:33:11,529 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))) [2023-11-29 01:33:11,529 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))) [2023-11-29 01:33:11,529 INFO L899 garLoopResultBuilder]: For program point L453(lines 453 461) no Hoare annotation was computed. [2023-11-29 01:33:11,529 INFO L899 garLoopResultBuilder]: For program point L449(lines 449 466) no Hoare annotation was computed. [2023-11-29 01:33:11,529 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))) [2023-11-29 01:33:11,529 INFO L899 garLoopResultBuilder]: For program point L464-1(lines 445 469) no Hoare annotation was computed. [2023-11-29 01:33:11,529 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 445 469) no Hoare annotation was computed. [2023-11-29 01:33:11,530 INFO L899 garLoopResultBuilder]: For program point L613(lines 613 617) no Hoare annotation was computed. [2023-11-29 01:33:11,530 INFO L899 garLoopResultBuilder]: For program point L613-2(lines 613 617) no Hoare annotation was computed. [2023-11-29 01:33:11,530 INFO L899 garLoopResultBuilder]: For program point L241-1(lines 237 248) no Hoare annotation was computed. [2023-11-29 01:33:11,530 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))) [2023-11-29 01:33:11,530 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 237 248) no Hoare annotation was computed. [2023-11-29 01:33:11,530 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 249 257) the Hoare annotation is: true [2023-11-29 01:33:11,530 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 249 257) no Hoare annotation was computed. [2023-11-29 01:33:11,531 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))) [2023-11-29 01:33:11,531 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))) [2023-11-29 01:33:11,531 INFO L899 garLoopResultBuilder]: For program point L477-1(line 477) no Hoare annotation was computed. [2023-11-29 01:33:11,532 INFO L899 garLoopResultBuilder]: For program point L188(lines 188 198) no Hoare annotation was computed. [2023-11-29 01:33:11,532 INFO L899 garLoopResultBuilder]: For program point L217(lines 217 221) no Hoare annotation was computed. [2023-11-29 01:33:11,532 INFO L899 garLoopResultBuilder]: For program point L184(lines 184 201) no Hoare annotation was computed. [2023-11-29 01:33:11,532 INFO L899 garLoopResultBuilder]: For program point L217-2(lines 213 224) no Hoare annotation was computed. [2023-11-29 01:33:11,532 INFO L899 garLoopResultBuilder]: For program point L184-1(lines 176 204) no Hoare annotation was computed. [2023-11-29 01:33:11,532 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)))) [2023-11-29 01:33:11,532 INFO L899 garLoopResultBuilder]: For program point L490-1(lines 471 495) no Hoare annotation was computed. [2023-11-29 01:33:11,532 INFO L899 garLoopResultBuilder]: For program point L391-1(lines 390 409) no Hoare annotation was computed. [2023-11-29 01:33:11,532 INFO L899 garLoopResultBuilder]: For program point L160(line 160) no Hoare annotation was computed. [2023-11-29 01:33:11,533 INFO L899 garLoopResultBuilder]: For program point L189(lines 189 195) no Hoare annotation was computed. [2023-11-29 01:33:11,533 INFO L899 garLoopResultBuilder]: For program point L479(lines 479 487) no Hoare annotation was computed. [2023-11-29 01:33:11,533 INFO L899 garLoopResultBuilder]: For program point L475(lines 475 492) no Hoare annotation was computed. [2023-11-29 01:33:11,533 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)))) [2023-11-29 01:33:11,533 INFO L899 garLoopResultBuilder]: For program point L182-1(line 182) no Hoare annotation was computed. [2023-11-29 01:33:11,533 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)))) [2023-11-29 01:33:11,534 INFO L899 garLoopResultBuilder]: For program point L398-1(lines 398 404) no Hoare annotation was computed. [2023-11-29 01:33:11,534 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 387 410) no Hoare annotation was computed. [2023-11-29 01:33:11,534 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 160) no Hoare annotation was computed. [2023-11-29 01:33:11,534 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))) [2023-11-29 01:33:11,534 INFO L902 garLoopResultBuilder]: At program point L66-1(lines 66 70) the Hoare annotation is: true [2023-11-29 01:33:11,534 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 52 81) no Hoare annotation was computed. [2023-11-29 01:33:11,534 INFO L902 garLoopResultBuilder]: At program point L62-2(lines 62 76) the Hoare annotation is: true [2023-11-29 01:33:11,534 INFO L902 garLoopResultBuilder]: At program point L58(line 58) the Hoare annotation is: true [2023-11-29 01:33:11,534 INFO L899 garLoopResultBuilder]: For program point L58-1(line 58) no Hoare annotation was computed. [2023-11-29 01:33:11,535 INFO L899 garLoopResultBuilder]: For program point L77(lines 52 81) no Hoare annotation was computed. [2023-11-29 01:33:11,535 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 52 81) the Hoare annotation is: true [2023-11-29 01:33:11,535 INFO L899 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2023-11-29 01:33:11,535 INFO L899 garLoopResultBuilder]: For program point L66(lines 66 70) no Hoare annotation was computed. [2023-11-29 01:33:11,535 INFO L899 garLoopResultBuilder]: For program point L345(lines 345 351) no Hoare annotation was computed. [2023-11-29 01:33:11,535 INFO L899 garLoopResultBuilder]: For program point L345-1(lines 345 351) no Hoare annotation was computed. [2023-11-29 01:33:11,535 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)))) [2023-11-29 01:33:11,535 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)))) [2023-11-29 01:33:11,535 INFO L899 garLoopResultBuilder]: For program point L627(lines 627 633) no Hoare annotation was computed. [2023-11-29 01:33:11,535 INFO L899 garLoopResultBuilder]: For program point L627-1(lines 627 633) no Hoare annotation was computed. [2023-11-29 01:33:11,536 INFO L899 garLoopResultBuilder]: For program point L326(lines 325 372) no Hoare annotation was computed. [2023-11-29 01:33:11,536 INFO L899 garLoopResultBuilder]: For program point L355(lines 355 368) no Hoare annotation was computed. [2023-11-29 01:33:11,536 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-29 01:33:11,536 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)))) [2023-11-29 01:33:11,536 INFO L899 garLoopResultBuilder]: For program point L376(lines 315 380) no Hoare annotation was computed. [2023-11-29 01:33:11,536 INFO L899 garLoopResultBuilder]: For program point L335(lines 335 341) no Hoare annotation was computed. [2023-11-29 01:33:11,536 INFO L899 garLoopResultBuilder]: For program point L335-1(lines 335 341) no Hoare annotation was computed. [2023-11-29 01:33:11,536 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-29 01:33:11,536 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))) [2023-11-29 01:33:11,536 INFO L895 garLoopResultBuilder]: At program point L373(lines 324 374) the Hoare annotation is: false [2023-11-29 01:33:11,536 INFO L899 garLoopResultBuilder]: For program point L142(lines 142 149) no Hoare annotation was computed. [2023-11-29 01:33:11,537 INFO L899 garLoopResultBuilder]: For program point L142-2(lines 142 149) no Hoare annotation was computed. [2023-11-29 01:33:11,537 INFO L899 garLoopResultBuilder]: For program point L361(lines 361 367) no Hoare annotation was computed. [2023-11-29 01:33:11,537 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)))) [2023-11-29 01:33:11,537 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))) [2023-11-29 01:33:11,537 INFO L899 garLoopResultBuilder]: For program point L438-1(lines 419 443) no Hoare annotation was computed. [2023-11-29 01:33:11,537 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))) [2023-11-29 01:33:11,537 INFO L899 garLoopResultBuilder]: For program point L294(lines 294 300) no Hoare annotation was computed. [2023-11-29 01:33:11,537 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDry_returnLabel#1(lines 290 303) no Hoare annotation was computed. [2023-11-29 01:33:11,537 INFO L899 garLoopResultBuilder]: For program point L511(lines 511 517) no Hoare annotation was computed. [2023-11-29 01:33:11,537 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))) [2023-11-29 01:33:11,538 INFO L899 garLoopResultBuilder]: For program point L511-2(lines 504 520) no Hoare annotation was computed. [2023-11-29 01:33:11,538 INFO L899 garLoopResultBuilder]: For program point L509-1(line 509) no Hoare annotation was computed. [2023-11-29 01:33:11,538 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 419 443) no Hoare annotation was computed. [2023-11-29 01:33:11,538 INFO L899 garLoopResultBuilder]: For program point L594(lines 594 598) no Hoare annotation was computed. [2023-11-29 01:33:11,538 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))) [2023-11-29 01:33:11,538 INFO L899 garLoopResultBuilder]: For program point L594-2(lines 594 598) no Hoare annotation was computed. [2023-11-29 01:33:11,538 INFO L899 garLoopResultBuilder]: For program point L427(lines 427 435) no Hoare annotation was computed. [2023-11-29 01:33:11,538 INFO L899 garLoopResultBuilder]: For program point L423(lines 423 440) no Hoare annotation was computed. [2023-11-29 01:33:11,538 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 225 236) no Hoare annotation was computed. [2023-11-29 01:33:11,538 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)))) [2023-11-29 01:33:11,538 INFO L899 garLoopResultBuilder]: For program point L229-1(lines 225 236) no Hoare annotation was computed. [2023-11-29 01:33:11,539 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 529 539) no Hoare annotation was computed. [2023-11-29 01:33:11,539 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 529 539) the Hoare annotation is: true [2023-11-29 01:33:11,539 INFO L902 garLoopResultBuilder]: At program point L534(line 534) the Hoare annotation is: true [2023-11-29 01:33:11,539 INFO L899 garLoopResultBuilder]: For program point L534-1(line 534) no Hoare annotation was computed. [2023-11-29 01:33:11,541 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:33:11,542 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 01:33:11,552 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 01:33:11 BoogieIcfgContainer [2023-11-29 01:33:11,552 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 01:33:11,552 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 01:33:11,552 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 01:33:11,552 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 01:33:11,553 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:32:54" (3/4) ... [2023-11-29 01:33:11,554 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 01:33:11,557 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2023-11-29 01:33:11,557 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2023-11-29 01:33:11,557 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2023-11-29 01:33:11,557 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2023-11-29 01:33:11,557 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2023-11-29 01:33:11,557 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2023-11-29 01:33:11,557 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2023-11-29 01:33:11,557 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2023-11-29 01:33:11,557 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2023-11-29 01:33:11,557 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2023-11-29 01:33:11,565 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 36 nodes and edges [2023-11-29 01:33:11,566 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-29 01:33:11,567 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-29 01:33:11,567 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 01:33:11,568 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 01:33:11,668 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad2d049-9f81-47a9-9ce0-d14860a2e104/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 01:33:11,669 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad2d049-9f81-47a9-9ce0-d14860a2e104/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 01:33:11,669 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 01:33:11,670 INFO L158 Benchmark]: Toolchain (without parser) took 17674.12ms. Allocated memory was 167.8MB in the beginning and 293.6MB in the end (delta: 125.8MB). Free memory was 139.6MB in the beginning and 142.0MB in the end (delta: -2.5MB). Peak memory consumption was 123.5MB. Max. memory is 16.1GB. [2023-11-29 01:33:11,670 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 121.6MB. Free memory is still 88.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 01:33:11,671 INFO L158 Benchmark]: CACSL2BoogieTranslator took 392.47ms. Allocated memory is still 167.8MB. Free memory was 139.6MB in the beginning and 119.8MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-29 01:33:11,671 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.32ms. Allocated memory is still 167.8MB. Free memory was 119.8MB in the beginning and 116.9MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 01:33:11,671 INFO L158 Benchmark]: Boogie Preprocessor took 45.94ms. Allocated memory is still 167.8MB. Free memory was 116.9MB in the beginning and 114.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 01:33:11,672 INFO L158 Benchmark]: RCFGBuilder took 462.07ms. Allocated memory is still 167.8MB. Free memory was 114.8MB in the beginning and 91.0MB in the end (delta: 23.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-29 01:33:11,672 INFO L158 Benchmark]: TraceAbstraction took 16605.15ms. Allocated memory was 167.8MB in the beginning and 293.6MB in the end (delta: 125.8MB). Free memory was 90.4MB in the beginning and 150.5MB in the end (delta: -60.0MB). Peak memory consumption was 137.5MB. Max. memory is 16.1GB. [2023-11-29 01:33:11,672 INFO L158 Benchmark]: Witness Printer took 117.08ms. Allocated memory is still 293.6MB. Free memory was 149.4MB in the beginning and 142.0MB in the end (delta: 7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-29 01:33:11,674 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 121.6MB. Free memory is still 88.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 392.47ms. Allocated memory is still 167.8MB. Free memory was 139.6MB in the beginning and 119.8MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.32ms. Allocated memory is still 167.8MB. Free memory was 119.8MB in the beginning and 116.9MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.94ms. Allocated memory is still 167.8MB. Free memory was 116.9MB in the beginning and 114.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 462.07ms. Allocated memory is still 167.8MB. Free memory was 114.8MB in the beginning and 91.0MB in the end (delta: 23.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 16605.15ms. Allocated memory was 167.8MB in the beginning and 293.6MB in the end (delta: 125.8MB). Free memory was 90.4MB in the beginning and 150.5MB in the end (delta: -60.0MB). Peak memory consumption was 137.5MB. Max. memory is 16.1GB. * Witness Printer took 117.08ms. Allocated memory is still 293.6MB. Free memory was 149.4MB in the beginning and 142.0MB in the end (delta: 7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"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: 16.5s, OverallIterations: 12, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1835 SdHoareTripleChecker+Valid, 2.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1791 mSDsluCounter, 3516 SdHoareTripleChecker+Invalid, 2.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2284 mSDsCounter, 700 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3055 IncrementalHoareTripleChecker+Invalid, 3755 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 700 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, 2.2s 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: 0.4s AutomataMinimizationTime, 12 MinimizatonAttempts, 497 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 31 LocationsWithAnnotation, 1840 PreInvPairs, 2086 NumberOfFragments, 1688 HoareAnnotationTreeSize, 1840 FomulaSimplifications, 5377 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 31 FomulaSimplificationsInter, 20854 FormulaSimplificationTreeSizeReductionInter, 4.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.9s 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! [2023-11-29 01:33:11,693 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad2d049-9f81-47a9-9ce0-d14860a2e104/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE