./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product60.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cf70a75-5e9e-4a5c-ab9a-cd1e74c2c6e4/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cf70a75-5e9e-4a5c-ab9a-cd1e74c2c6e4/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_3cf70a75-5e9e-4a5c-ab9a-cd1e74c2c6e4/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cf70a75-5e9e-4a5c-ab9a-cd1e74c2c6e4/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product60.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cf70a75-5e9e-4a5c-ab9a-cd1e74c2c6e4/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_3cf70a75-5e9e-4a5c-ab9a-cd1e74c2c6e4/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 63a498e40ee7fb7960293994084186ed238562f61fafb5e109bd8b394667fc1f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 06:54:31,573 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 06:54:31,638 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cf70a75-5e9e-4a5c-ab9a-cd1e74c2c6e4/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 06:54:31,644 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 06:54:31,644 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 06:54:31,669 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 06:54:31,670 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 06:54:31,670 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 06:54:31,671 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 06:54:31,672 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 06:54:31,672 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 06:54:31,673 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 06:54:31,673 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 06:54:31,674 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 06:54:31,674 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 06:54:31,675 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 06:54:31,675 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 06:54:31,676 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 06:54:31,676 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 06:54:31,677 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 06:54:31,678 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 06:54:31,682 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 06:54:31,682 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 06:54:31,683 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 06:54:31,683 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 06:54:31,684 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 06:54:31,684 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 06:54:31,684 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 06:54:31,685 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 06:54:31,685 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 06:54:31,685 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 06:54:31,686 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:54:31,686 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 06:54:31,686 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 06:54:31,686 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 06:54:31,687 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 06:54:31,687 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 06:54:31,687 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 06:54:31,687 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 06:54:31,687 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 06:54:31,688 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 06:54:31,688 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 06:54:31,688 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_3cf70a75-5e9e-4a5c-ab9a-cd1e74c2c6e4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cf70a75-5e9e-4a5c-ab9a-cd1e74c2c6e4/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 63a498e40ee7fb7960293994084186ed238562f61fafb5e109bd8b394667fc1f [2023-11-29 06:54:31,905 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 06:54:31,926 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 06:54:31,928 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 06:54:31,929 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 06:54:31,930 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 06:54:31,931 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cf70a75-5e9e-4a5c-ab9a-cd1e74c2c6e4/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/product-lines/minepump_spec4_product60.cil.c [2023-11-29 06:54:34,714 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 06:54:34,936 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 06:54:34,936 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cf70a75-5e9e-4a5c-ab9a-cd1e74c2c6e4/sv-benchmarks/c/product-lines/minepump_spec4_product60.cil.c [2023-11-29 06:54:34,951 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cf70a75-5e9e-4a5c-ab9a-cd1e74c2c6e4/bin/uautomizer-verify-BQ2R08f2Ya/data/63594263a/7d272c7f926645509b2eb05653e3f497/FLAGd167f0b28 [2023-11-29 06:54:34,964 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cf70a75-5e9e-4a5c-ab9a-cd1e74c2c6e4/bin/uautomizer-verify-BQ2R08f2Ya/data/63594263a/7d272c7f926645509b2eb05653e3f497 [2023-11-29 06:54:34,966 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 06:54:34,967 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 06:54:34,969 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 06:54:34,969 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 06:54:34,973 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 06:54:34,974 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:54:34" (1/1) ... [2023-11-29 06:54:34,975 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4938fca1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:54:34, skipping insertion in model container [2023-11-29 06:54:34,975 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:54:34" (1/1) ... [2023-11-29 06:54:35,021 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 06:54:35,233 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_3cf70a75-5e9e-4a5c-ab9a-cd1e74c2c6e4/sv-benchmarks/c/product-lines/minepump_spec4_product60.cil.c[13463,13476] [2023-11-29 06:54:35,264 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:54:35,274 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 06:54:35,282 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] [2023-11-29 06:54:35,283 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [87] [2023-11-29 06:54:35,283 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [188] [2023-11-29 06:54:35,284 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [554] [2023-11-29 06:54:35,284 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [583] [2023-11-29 06:54:35,284 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [592] [2023-11-29 06:54:35,284 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [839] [2023-11-29 06:54:35,284 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [908] [2023-11-29 06:54:35,327 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_3cf70a75-5e9e-4a5c-ab9a-cd1e74c2c6e4/sv-benchmarks/c/product-lines/minepump_spec4_product60.cil.c[13463,13476] [2023-11-29 06:54:35,341 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:54:35,360 INFO L206 MainTranslator]: Completed translation [2023-11-29 06:54:35,360 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:54:35 WrapperNode [2023-11-29 06:54:35,361 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 06:54:35,361 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 06:54:35,362 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 06:54:35,362 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 06:54:35,367 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:54:35" (1/1) ... [2023-11-29 06:54:35,381 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:54:35" (1/1) ... [2023-11-29 06:54:35,407 INFO L138 Inliner]: procedures = 58, calls = 103, calls flagged for inlining = 27, calls inlined = 24, statements flattened = 233 [2023-11-29 06:54:35,408 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 06:54:35,408 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 06:54:35,408 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 06:54:35,408 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 06:54:35,418 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:54:35" (1/1) ... [2023-11-29 06:54:35,418 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:54:35" (1/1) ... [2023-11-29 06:54:35,421 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:54:35" (1/1) ... [2023-11-29 06:54:35,437 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 06:54:35,437 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:54:35" (1/1) ... [2023-11-29 06:54:35,437 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:54:35" (1/1) ... [2023-11-29 06:54:35,443 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:54:35" (1/1) ... [2023-11-29 06:54:35,447 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:54:35" (1/1) ... [2023-11-29 06:54:35,449 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:54:35" (1/1) ... [2023-11-29 06:54:35,451 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:54:35" (1/1) ... [2023-11-29 06:54:35,453 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 06:54:35,455 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 06:54:35,455 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 06:54:35,455 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 06:54:35,456 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:54:35" (1/1) ... [2023-11-29 06:54:35,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:54:35,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cf70a75-5e9e-4a5c-ab9a-cd1e74c2c6e4/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:54:35,484 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cf70a75-5e9e-4a5c-ab9a-cd1e74c2c6e4/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 06:54:35,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cf70a75-5e9e-4a5c-ab9a-cd1e74c2c6e4/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 06:54:35,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 06:54:35,514 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-11-29 06:54:35,514 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-11-29 06:54:35,514 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-29 06:54:35,515 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-29 06:54:35,515 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-29 06:54:35,515 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-29 06:54:35,515 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-11-29 06:54:35,515 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-11-29 06:54:35,515 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-29 06:54:35,515 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-29 06:54:35,515 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-11-29 06:54:35,516 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-11-29 06:54:35,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 06:54:35,516 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-29 06:54:35,516 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-29 06:54:35,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 06:54:35,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 06:54:35,585 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 06:54:35,588 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 06:54:35,833 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 06:54:35,905 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 06:54:35,905 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-29 06:54:35,905 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:54:35 BoogieIcfgContainer [2023-11-29 06:54:35,905 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 06:54:35,908 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 06:54:35,909 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 06:54:35,912 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 06:54:35,912 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:54:34" (1/3) ... [2023-11-29 06:54:35,913 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79ac7b0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:54:35, skipping insertion in model container [2023-11-29 06:54:35,913 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:54:35" (2/3) ... [2023-11-29 06:54:35,914 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79ac7b0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:54:35, skipping insertion in model container [2023-11-29 06:54:35,914 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:54:35" (3/3) ... [2023-11-29 06:54:35,915 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product60.cil.c [2023-11-29 06:54:35,936 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 06:54:35,936 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 06:54:35,982 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 06:54:35,988 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;@5d1a364a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 06:54:35,988 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 06:54:35,992 INFO L276 IsEmpty]: Start isEmpty. Operand has 71 states, 50 states have (on average 1.56) internal successors, (78), 59 states have internal predecessors, (78), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 9 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 06:54:35,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-29 06:54:35,999 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:54:36,000 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:54:36,000 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:54:36,006 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:54:36,006 INFO L85 PathProgramCache]: Analyzing trace with hash 2028903992, now seen corresponding path program 1 times [2023-11-29 06:54:36,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:54:36,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417257489] [2023-11-29 06:54:36,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:54:36,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:54:36,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:36,159 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 06:54:36,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:54:36,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417257489] [2023-11-29 06:54:36,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417257489] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:54:36,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:54:36,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:54:36,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289391526] [2023-11-29 06:54:36,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:54:36,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 06:54:36,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:54:36,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 06:54:36,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 06:54:36,199 INFO L87 Difference]: Start difference. First operand has 71 states, 50 states have (on average 1.56) internal successors, (78), 59 states have internal predecessors, (78), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 9 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:54:36,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:54:36,258 INFO L93 Difference]: Finished difference Result 140 states and 205 transitions. [2023-11-29 06:54:36,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 06:54:36,260 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-29 06:54:36,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:54:36,268 INFO L225 Difference]: With dead ends: 140 [2023-11-29 06:54:36,268 INFO L226 Difference]: Without dead ends: 66 [2023-11-29 06:54:36,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 06:54:36,276 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:54:36,277 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 80 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:54:36,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2023-11-29 06:54:36,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2023-11-29 06:54:36,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 47 states have (on average 1.446808510638298) internal successors, (68), 55 states have internal predecessors, (68), 12 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (11), 8 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 06:54:36,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 91 transitions. [2023-11-29 06:54:36,324 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 91 transitions. Word has length 12 [2023-11-29 06:54:36,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:54:36,325 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 91 transitions. [2023-11-29 06:54:36,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:54:36,325 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 91 transitions. [2023-11-29 06:54:36,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-29 06:54:36,327 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:54:36,327 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:54:36,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 06:54:36,328 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:54:36,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:54:36,329 INFO L85 PathProgramCache]: Analyzing trace with hash -104630247, now seen corresponding path program 1 times [2023-11-29 06:54:36,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:54:36,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769296067] [2023-11-29 06:54:36,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:54:36,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:54:36,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:36,416 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 06:54:36,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:54:36,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769296067] [2023-11-29 06:54:36,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769296067] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:54:36,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:54:36,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:54:36,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26174953] [2023-11-29 06:54:36,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:54:36,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:54:36,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:54:36,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:54:36,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:54:36,420 INFO L87 Difference]: Start difference. First operand 66 states and 91 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:54:36,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:54:36,460 INFO L93 Difference]: Finished difference Result 102 states and 140 transitions. [2023-11-29 06:54:36,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:54:36,461 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-11-29 06:54:36,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:54:36,463 INFO L225 Difference]: With dead ends: 102 [2023-11-29 06:54:36,463 INFO L226 Difference]: Without dead ends: 58 [2023-11-29 06:54:36,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:54:36,465 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 14 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:54:36,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 116 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:54:36,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2023-11-29 06:54:36,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2023-11-29 06:54:36,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 42 states have (on average 1.4761904761904763) internal successors, (62), 50 states have internal predecessors, (62), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 6 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 06:54:36,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 80 transitions. [2023-11-29 06:54:36,475 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 80 transitions. Word has length 13 [2023-11-29 06:54:36,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:54:36,476 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 80 transitions. [2023-11-29 06:54:36,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:54:36,476 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 80 transitions. [2023-11-29 06:54:36,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-29 06:54:36,477 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:54:36,477 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:54:36,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 06:54:36,478 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:54:36,478 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:54:36,479 INFO L85 PathProgramCache]: Analyzing trace with hash 403281525, now seen corresponding path program 1 times [2023-11-29 06:54:36,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:54:36,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006549077] [2023-11-29 06:54:36,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:54:36,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:54:36,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:36,580 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 06:54:36,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:54:36,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006549077] [2023-11-29 06:54:36,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006549077] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:54:36,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:54:36,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:54:36,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560815380] [2023-11-29 06:54:36,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:54:36,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:54:36,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:54:36,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:54:36,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:54:36,583 INFO L87 Difference]: Start difference. First operand 58 states and 80 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:54:36,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:54:36,670 INFO L93 Difference]: Finished difference Result 147 states and 204 transitions. [2023-11-29 06:54:36,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:54:36,670 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-11-29 06:54:36,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:54:36,672 INFO L225 Difference]: With dead ends: 147 [2023-11-29 06:54:36,672 INFO L226 Difference]: Without dead ends: 91 [2023-11-29 06:54:36,673 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 06:54:36,675 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 103 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:54:36,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 154 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:54:36,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2023-11-29 06:54:36,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 88. [2023-11-29 06:54:36,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 64 states have (on average 1.484375) internal successors, (95), 75 states have internal predecessors, (95), 13 states have call successors, (13), 10 states have call predecessors, (13), 10 states have return successors, (14), 9 states have call predecessors, (14), 13 states have call successors, (14) [2023-11-29 06:54:36,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 122 transitions. [2023-11-29 06:54:36,691 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 122 transitions. Word has length 16 [2023-11-29 06:54:36,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:54:36,692 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 122 transitions. [2023-11-29 06:54:36,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:54:36,692 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 122 transitions. [2023-11-29 06:54:36,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-29 06:54:36,694 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:54:36,694 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:54:36,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 06:54:36,694 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:54:36,695 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:54:36,695 INFO L85 PathProgramCache]: Analyzing trace with hash 111947608, now seen corresponding path program 1 times [2023-11-29 06:54:36,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:54:36,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716928849] [2023-11-29 06:54:36,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:54:36,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:54:36,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:36,795 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 06:54:36,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:54:36,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716928849] [2023-11-29 06:54:36,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716928849] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:54:36,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:54:36,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:54:36,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065359661] [2023-11-29 06:54:36,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:54:36,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:54:36,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:54:36,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:54:36,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:54:36,797 INFO L87 Difference]: Start difference. First operand 88 states and 122 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:54:36,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:54:36,880 INFO L93 Difference]: Finished difference Result 250 states and 363 transitions. [2023-11-29 06:54:36,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:54:36,880 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2023-11-29 06:54:36,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:54:36,883 INFO L225 Difference]: With dead ends: 250 [2023-11-29 06:54:36,883 INFO L226 Difference]: Without dead ends: 164 [2023-11-29 06:54:36,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 06:54:36,886 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 54 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:54:36,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 184 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:54:36,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2023-11-29 06:54:36,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2023-11-29 06:54:36,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 119 states have (on average 1.4453781512605042) internal successors, (172), 138 states have internal predecessors, (172), 26 states have call successors, (26), 20 states have call predecessors, (26), 18 states have return successors, (31), 16 states have call predecessors, (31), 26 states have call successors, (31) [2023-11-29 06:54:36,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 229 transitions. [2023-11-29 06:54:36,915 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 229 transitions. Word has length 19 [2023-11-29 06:54:36,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:54:36,915 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 229 transitions. [2023-11-29 06:54:36,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:54:36,916 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 229 transitions. [2023-11-29 06:54:36,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-29 06:54:36,917 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:54:36,917 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 06:54:36,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 06:54:36,918 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:54:36,918 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:54:36,918 INFO L85 PathProgramCache]: Analyzing trace with hash -977829603, now seen corresponding path program 1 times [2023-11-29 06:54:36,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:54:36,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798954613] [2023-11-29 06:54:36,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:54:36,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:54:36,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:37,052 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 06:54:37,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:54:37,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798954613] [2023-11-29 06:54:37,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798954613] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:54:37,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:54:37,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:54:37,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546793508] [2023-11-29 06:54:37,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:54:37,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:54:37,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:54:37,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:54:37,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:54:37,056 INFO L87 Difference]: Start difference. First operand 164 states and 229 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:54:37,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:54:37,141 INFO L93 Difference]: Finished difference Result 373 states and 535 transitions. [2023-11-29 06:54:37,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:54:37,141 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2023-11-29 06:54:37,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:54:37,144 INFO L225 Difference]: With dead ends: 373 [2023-11-29 06:54:37,144 INFO L226 Difference]: Without dead ends: 211 [2023-11-29 06:54:37,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 06:54:37,148 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 46 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:54:37,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 169 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:54:37,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2023-11-29 06:54:37,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 206. [2023-11-29 06:54:37,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 154 states have (on average 1.3571428571428572) internal successors, (209), 170 states have internal predecessors, (209), 27 states have call successors, (27), 26 states have call predecessors, (27), 24 states have return successors, (40), 24 states have call predecessors, (40), 27 states have call successors, (40) [2023-11-29 06:54:37,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 276 transitions. [2023-11-29 06:54:37,178 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 276 transitions. Word has length 21 [2023-11-29 06:54:37,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:54:37,179 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 276 transitions. [2023-11-29 06:54:37,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:54:37,179 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 276 transitions. [2023-11-29 06:54:37,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-29 06:54:37,182 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:54:37,182 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:54:37,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 06:54:37,183 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:54:37,183 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:54:37,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1826868804, now seen corresponding path program 1 times [2023-11-29 06:54:37,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:54:37,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072162985] [2023-11-29 06:54:37,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:54:37,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:54:37,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:37,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:54:37,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:37,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 06:54:37,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:37,268 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 06:54:37,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:54:37,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072162985] [2023-11-29 06:54:37,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072162985] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:54:37,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:54:37,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 06:54:37,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710981996] [2023-11-29 06:54:37,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:54:37,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:54:37,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:54:37,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:54:37,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:54:37,271 INFO L87 Difference]: Start difference. First operand 206 states and 276 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:54:37,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:54:37,530 INFO L93 Difference]: Finished difference Result 477 states and 663 transitions. [2023-11-29 06:54:37,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:54:37,531 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 34 [2023-11-29 06:54:37,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:54:37,534 INFO L225 Difference]: With dead ends: 477 [2023-11-29 06:54:37,534 INFO L226 Difference]: Without dead ends: 273 [2023-11-29 06:54:37,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:54:37,536 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 108 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:54:37,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 172 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:54:37,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2023-11-29 06:54:37,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 251. [2023-11-29 06:54:37,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 188 states have (on average 1.3404255319148937) internal successors, (252), 210 states have internal predecessors, (252), 30 states have call successors, (30), 26 states have call predecessors, (30), 32 states have return successors, (54), 28 states have call predecessors, (54), 30 states have call successors, (54) [2023-11-29 06:54:37,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 336 transitions. [2023-11-29 06:54:37,569 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 336 transitions. Word has length 34 [2023-11-29 06:54:37,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:54:37,569 INFO L495 AbstractCegarLoop]: Abstraction has 251 states and 336 transitions. [2023-11-29 06:54:37,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:54:37,570 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 336 transitions. [2023-11-29 06:54:37,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-29 06:54:37,572 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:54:37,572 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:54:37,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 06:54:37,572 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:54:37,573 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:54:37,573 INFO L85 PathProgramCache]: Analyzing trace with hash 2085034242, now seen corresponding path program 1 times [2023-11-29 06:54:37,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:54:37,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412591145] [2023-11-29 06:54:37,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:54:37,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:54:37,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:37,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:54:37,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:37,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 06:54:37,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:37,668 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 06:54:37,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:54:37,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412591145] [2023-11-29 06:54:37,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412591145] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:54:37,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:54:37,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 06:54:37,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586383961] [2023-11-29 06:54:37,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:54:37,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:54:37,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:54:37,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:54:37,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:54:37,671 INFO L87 Difference]: Start difference. First operand 251 states and 336 transitions. Second operand has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:54:37,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:54:37,942 INFO L93 Difference]: Finished difference Result 492 states and 674 transitions. [2023-11-29 06:54:37,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:54:37,943 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 34 [2023-11-29 06:54:37,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:54:37,945 INFO L225 Difference]: With dead ends: 492 [2023-11-29 06:54:37,945 INFO L226 Difference]: Without dead ends: 243 [2023-11-29 06:54:37,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:54:37,947 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 145 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:54:37,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 165 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:54:37,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2023-11-29 06:54:37,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 205. [2023-11-29 06:54:37,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 154 states have (on average 1.3311688311688312) internal successors, (205), 171 states have internal predecessors, (205), 25 states have call successors, (25), 22 states have call predecessors, (25), 25 states have return successors, (40), 22 states have call predecessors, (40), 25 states have call successors, (40) [2023-11-29 06:54:37,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 270 transitions. [2023-11-29 06:54:37,970 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 270 transitions. Word has length 34 [2023-11-29 06:54:37,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:54:37,971 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 270 transitions. [2023-11-29 06:54:37,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:54:37,971 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 270 transitions. [2023-11-29 06:54:37,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-29 06:54:37,972 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:54:37,972 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:54:37,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 06:54:37,973 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:54:37,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:54:37,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1073916992, now seen corresponding path program 1 times [2023-11-29 06:54:37,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:54:37,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065910455] [2023-11-29 06:54:37,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:54:37,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:54:37,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:38,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:54:38,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:38,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 06:54:38,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:38,064 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 06:54:38,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:54:38,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065910455] [2023-11-29 06:54:38,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065910455] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:54:38,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:54:38,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 06:54:38,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749844258] [2023-11-29 06:54:38,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:54:38,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:54:38,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:54:38,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:54:38,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:54:38,067 INFO L87 Difference]: Start difference. First operand 205 states and 270 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:54:38,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:54:38,420 INFO L93 Difference]: Finished difference Result 459 states and 647 transitions. [2023-11-29 06:54:38,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 06:54:38,421 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 34 [2023-11-29 06:54:38,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:54:38,424 INFO L225 Difference]: With dead ends: 459 [2023-11-29 06:54:38,424 INFO L226 Difference]: Without dead ends: 315 [2023-11-29 06:54:38,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:54:38,426 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 163 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:54:38,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 223 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 06:54:38,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2023-11-29 06:54:38,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 307. [2023-11-29 06:54:38,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 230 states have (on average 1.3043478260869565) internal successors, (300), 252 states have internal predecessors, (300), 38 states have call successors, (38), 34 states have call predecessors, (38), 38 states have return successors, (74), 38 states have call predecessors, (74), 38 states have call successors, (74) [2023-11-29 06:54:38,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 412 transitions. [2023-11-29 06:54:38,454 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 412 transitions. Word has length 34 [2023-11-29 06:54:38,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:54:38,455 INFO L495 AbstractCegarLoop]: Abstraction has 307 states and 412 transitions. [2023-11-29 06:54:38,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:54:38,455 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 412 transitions. [2023-11-29 06:54:38,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-29 06:54:38,457 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:54:38,457 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 06:54:38,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 06:54:38,458 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:54:38,458 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:54:38,458 INFO L85 PathProgramCache]: Analyzing trace with hash -333229304, now seen corresponding path program 1 times [2023-11-29 06:54:38,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:54:38,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287837020] [2023-11-29 06:54:38,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:54:38,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:54:38,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:38,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:54:38,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:38,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 06:54:38,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:38,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 06:54:38,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:38,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-29 06:54:38,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:38,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 06:54:38,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:38,618 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 06:54:38,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:54:38,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287837020] [2023-11-29 06:54:38,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287837020] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:54:38,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [950714817] [2023-11-29 06:54:38,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:54:38,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:54:38,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cf70a75-5e9e-4a5c-ab9a-cd1e74c2c6e4/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:54:38,635 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cf70a75-5e9e-4a5c-ab9a-cd1e74c2c6e4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:54:38,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cf70a75-5e9e-4a5c-ab9a-cd1e74c2c6e4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 06:54:38,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:38,724 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 06:54:38,731 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:54:38,820 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:54:38,820 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:54:38,913 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 06:54:38,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [950714817] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:54:38,914 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 06:54:38,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 8 [2023-11-29 06:54:38,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15560753] [2023-11-29 06:54:38,914 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 06:54:38,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:54:38,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:54:38,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:54:38,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:54:38,916 INFO L87 Difference]: Start difference. First operand 307 states and 412 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (12), 6 states have call predecessors, (12), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 06:54:39,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:54:39,476 INFO L93 Difference]: Finished difference Result 734 states and 1041 transitions. [2023-11-29 06:54:39,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 06:54:39,477 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (12), 6 states have call predecessors, (12), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 63 [2023-11-29 06:54:39,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:54:39,481 INFO L225 Difference]: With dead ends: 734 [2023-11-29 06:54:39,481 INFO L226 Difference]: Without dead ends: 488 [2023-11-29 06:54:39,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 135 SyntacticMatches, 6 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=126, Invalid=294, Unknown=0, NotChecked=0, Total=420 [2023-11-29 06:54:39,483 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 195 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:54:39,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 292 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 06:54:39,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2023-11-29 06:54:39,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 419. [2023-11-29 06:54:39,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 311 states have (on average 1.3086816720257235) internal successors, (407), 342 states have internal predecessors, (407), 54 states have call successors, (54), 48 states have call predecessors, (54), 53 states have return successors, (111), 50 states have call predecessors, (111), 54 states have call successors, (111) [2023-11-29 06:54:39,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 572 transitions. [2023-11-29 06:54:39,529 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 572 transitions. Word has length 63 [2023-11-29 06:54:39,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:54:39,529 INFO L495 AbstractCegarLoop]: Abstraction has 419 states and 572 transitions. [2023-11-29 06:54:39,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (12), 6 states have call predecessors, (12), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 06:54:39,530 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 572 transitions. [2023-11-29 06:54:39,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-29 06:54:39,532 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:54:39,533 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 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 06:54:39,544 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cf70a75-5e9e-4a5c-ab9a-cd1e74c2c6e4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 06:54:39,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cf70a75-5e9e-4a5c-ab9a-cd1e74c2c6e4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-29 06:54:39,734 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:54:39,734 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:54:39,734 INFO L85 PathProgramCache]: Analyzing trace with hash -159425641, now seen corresponding path program 1 times [2023-11-29 06:54:39,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:54:39,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835287826] [2023-11-29 06:54:39,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:54:39,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:54:39,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:39,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:54:39,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:39,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-29 06:54:39,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:39,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 06:54:39,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:39,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 06:54:39,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:39,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 06:54:39,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:39,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 06:54:39,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:39,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-29 06:54:39,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:39,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 06:54:39,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:39,832 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 34 proven. 6 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-11-29 06:54:39,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:54:39,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835287826] [2023-11-29 06:54:39,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835287826] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:54:39,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1650954458] [2023-11-29 06:54:39,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:54:39,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:54:39,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cf70a75-5e9e-4a5c-ab9a-cd1e74c2c6e4/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:54:39,834 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cf70a75-5e9e-4a5c-ab9a-cd1e74c2c6e4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:54:39,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cf70a75-5e9e-4a5c-ab9a-cd1e74c2c6e4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 06:54:39,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:39,930 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 06:54:39,934 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:54:39,945 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-29 06:54:39,945 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:54:39,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1650954458] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:54:39,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:54:39,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 7 [2023-11-29 06:54:39,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54480355] [2023-11-29 06:54:39,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:54:39,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:54:39,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:54:39,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:54:39,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:54:39,948 INFO L87 Difference]: Start difference. First operand 419 states and 572 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 06:54:40,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:54:40,012 INFO L93 Difference]: Finished difference Result 844 states and 1150 transitions. [2023-11-29 06:54:40,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:54:40,012 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) Word has length 95 [2023-11-29 06:54:40,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:54:40,016 INFO L225 Difference]: With dead ends: 844 [2023-11-29 06:54:40,016 INFO L226 Difference]: Without dead ends: 427 [2023-11-29 06:54:40,018 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:54:40,019 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 29 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:54:40,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 152 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:54:40,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2023-11-29 06:54:40,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 419. [2023-11-29 06:54:40,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 311 states have (on average 1.2958199356913183) internal successors, (403), 342 states have internal predecessors, (403), 54 states have call successors, (54), 48 states have call predecessors, (54), 53 states have return successors, (102), 50 states have call predecessors, (102), 54 states have call successors, (102) [2023-11-29 06:54:40,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 559 transitions. [2023-11-29 06:54:40,059 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 559 transitions. Word has length 95 [2023-11-29 06:54:40,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:54:40,059 INFO L495 AbstractCegarLoop]: Abstraction has 419 states and 559 transitions. [2023-11-29 06:54:40,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 06:54:40,060 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 559 transitions. [2023-11-29 06:54:40,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-29 06:54:40,062 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:54:40,062 INFO L195 NwaCegarLoop]: trace histogram [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, 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 06:54:40,068 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cf70a75-5e9e-4a5c-ab9a-cd1e74c2c6e4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-29 06:54:40,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cf70a75-5e9e-4a5c-ab9a-cd1e74c2c6e4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 06:54:40,263 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:54:40,263 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:54:40,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1305312960, now seen corresponding path program 2 times [2023-11-29 06:54:40,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:54:40,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520193696] [2023-11-29 06:54:40,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:54:40,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:54:40,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:40,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:54:40,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:40,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 06:54:40,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:40,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 06:54:40,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:40,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-29 06:54:40,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:40,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 06:54:40,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:40,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 06:54:40,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:40,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-29 06:54:40,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:40,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 06:54:40,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:40,563 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 44 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 06:54:40,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:54:40,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520193696] [2023-11-29 06:54:40,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520193696] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:54:40,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [510253749] [2023-11-29 06:54:40,564 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:54:40,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:54:40,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cf70a75-5e9e-4a5c-ab9a-cd1e74c2c6e4/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:54:40,565 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cf70a75-5e9e-4a5c-ab9a-cd1e74c2c6e4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:54:40,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cf70a75-5e9e-4a5c-ab9a-cd1e74c2c6e4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 06:54:40,673 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:54:40,673 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:54:40,675 INFO L262 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 06:54:40,680 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:54:40,769 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-29 06:54:40,770 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:54:40,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [510253749] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:54:40,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:54:40,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2023-11-29 06:54:40,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793491699] [2023-11-29 06:54:40,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:54:40,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:54:40,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:54:40,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:54:40,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:54:40,772 INFO L87 Difference]: Start difference. First operand 419 states and 559 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 06:54:40,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:54:40,996 INFO L93 Difference]: Finished difference Result 1096 states and 1530 transitions. [2023-11-29 06:54:40,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:54:40,996 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 92 [2023-11-29 06:54:40,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:54:41,002 INFO L225 Difference]: With dead ends: 1096 [2023-11-29 06:54:41,002 INFO L226 Difference]: Without dead ends: 737 [2023-11-29 06:54:41,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 103 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:54:41,007 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 109 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:54:41,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 344 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:54:41,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2023-11-29 06:54:41,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 721. [2023-11-29 06:54:41,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 721 states, 538 states have (on average 1.295539033457249) internal successors, (697), 584 states have internal predecessors, (697), 93 states have call successors, (93), 84 states have call predecessors, (93), 89 states have return successors, (159), 86 states have call predecessors, (159), 93 states have call successors, (159) [2023-11-29 06:54:41,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 949 transitions. [2023-11-29 06:54:41,070 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 949 transitions. Word has length 92 [2023-11-29 06:54:41,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:54:41,071 INFO L495 AbstractCegarLoop]: Abstraction has 721 states and 949 transitions. [2023-11-29 06:54:41,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 06:54:41,071 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 949 transitions. [2023-11-29 06:54:41,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-29 06:54:41,073 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:54:41,074 INFO L195 NwaCegarLoop]: trace histogram [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, 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 06:54:41,080 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cf70a75-5e9e-4a5c-ab9a-cd1e74c2c6e4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-29 06:54:41,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cf70a75-5e9e-4a5c-ab9a-cd1e74c2c6e4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-29 06:54:41,276 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:54:41,276 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:54:41,277 INFO L85 PathProgramCache]: Analyzing trace with hash -411826622, now seen corresponding path program 1 times [2023-11-29 06:54:41,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:54:41,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106347842] [2023-11-29 06:54:41,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:54:41,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:54:41,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:41,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:54:41,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:41,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 06:54:41,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:41,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 06:54:41,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:41,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-29 06:54:41,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:41,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 06:54:41,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:41,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 06:54:41,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:41,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-29 06:54:41,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:41,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 06:54:41,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:41,420 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-29 06:54:41,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:54:41,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106347842] [2023-11-29 06:54:41,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106347842] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:54:41,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:54:41,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 06:54:41,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645398860] [2023-11-29 06:54:41,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:54:41,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:54:41,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:54:41,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:54:41,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:54:41,422 INFO L87 Difference]: Start difference. First operand 721 states and 949 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:54:41,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:54:41,618 INFO L93 Difference]: Finished difference Result 1017 states and 1318 transitions. [2023-11-29 06:54:41,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:54:41,619 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 92 [2023-11-29 06:54:41,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:54:41,619 INFO L225 Difference]: With dead ends: 1017 [2023-11-29 06:54:41,620 INFO L226 Difference]: Without dead ends: 0 [2023-11-29 06:54:41,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:54:41,623 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 54 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:54:41,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 149 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:54:41,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-29 06:54:41,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-29 06:54:41,624 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 06:54:41,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 06:54:41,625 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 92 [2023-11-29 06:54:41,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:54:41,625 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 06:54:41,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:54:41,625 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-29 06:54:41,625 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-29 06:54:41,628 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 06:54:41,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-29 06:54:41,630 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-29 06:54:42,521 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 714 721) no Hoare annotation was computed. [2023-11-29 06:54:42,521 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 714 721) the Hoare annotation is: (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (< ~waterLevel~0 1) (= 0 ~systemActive~0)) [2023-11-29 06:54:42,522 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 629 635) no Hoare annotation was computed. [2023-11-29 06:54:42,522 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 629 635) the Hoare annotation is: true [2023-11-29 06:54:42,522 INFO L899 garLoopResultBuilder]: For program point L939-1(lines 935 946) no Hoare annotation was computed. [2023-11-29 06:54:42,522 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 935 946) the Hoare annotation is: true [2023-11-29 06:54:42,522 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 935 946) no Hoare annotation was computed. [2023-11-29 06:54:42,522 INFO L899 garLoopResultBuilder]: For program point L609-1(lines 608 627) no Hoare annotation was computed. [2023-11-29 06:54:42,522 INFO L899 garLoopResultBuilder]: For program point L671(lines 671 679) no Hoare annotation was computed. [2023-11-29 06:54:42,522 INFO L899 garLoopResultBuilder]: For program point L667(lines 667 684) no Hoare annotation was computed. [2023-11-29 06:54:42,523 INFO L899 garLoopResultBuilder]: For program point L915(lines 915 919) no Hoare annotation was computed. [2023-11-29 06:54:42,523 INFO L899 garLoopResultBuilder]: For program point L915-2(lines 911 922) no Hoare annotation was computed. [2023-11-29 06:54:42,523 INFO L895 garLoopResultBuilder]: At program point L677(line 677) the Hoare annotation is: (and (or (< |old(~waterLevel~0)| 2) (= 0 ~systemActive~0)) (or (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1))) [2023-11-29 06:54:42,523 INFO L895 garLoopResultBuilder]: At program point L673(line 673) the Hoare annotation is: (and (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 |timeShift_processEnvironment_~tmp~6#1|) (<= 1 ~waterLevel~0)) (< |old(~waterLevel~0)| 2) (= 0 ~systemActive~0)) (or (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1))) [2023-11-29 06:54:42,523 INFO L899 garLoopResultBuilder]: For program point L570(lines 570 576) no Hoare annotation was computed. [2023-11-29 06:54:42,523 INFO L899 garLoopResultBuilder]: For program point L566(lines 566 579) no Hoare annotation was computed. [2023-11-29 06:54:42,523 INFO L899 garLoopResultBuilder]: For program point L566-1(lines 558 582) no Hoare annotation was computed. [2023-11-29 06:54:42,524 INFO L895 garLoopResultBuilder]: At program point L682(line 682) the Hoare annotation is: (let ((.cse2 (= |old(~pumpRunning~0)| 0))) (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (not .cse2)) (.cse3 (= 0 ~systemActive~0))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and .cse1 (= ~waterLevel~0 1))) (or (< |old(~waterLevel~0)| 2) (and .cse1 .cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) .cse3) (or .cse0 (< |old(~waterLevel~0)| 1) (not .cse3))))) [2023-11-29 06:54:42,524 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 605 628) the Hoare annotation is: (let ((.cse0 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1) (and (= ~pumpRunning~0 0) .cse0)) (or (< |old(~waterLevel~0)| 2) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0) (= 0 ~systemActive~0)))) [2023-11-29 06:54:42,524 INFO L899 garLoopResultBuilder]: For program point L682-1(lines 663 687) no Hoare annotation was computed. [2023-11-29 06:54:42,524 INFO L899 garLoopResultBuilder]: For program point L616-1(lines 616 622) no Hoare annotation was computed. [2023-11-29 06:54:42,524 INFO L899 garLoopResultBuilder]: For program point L806(lines 806 810) no Hoare annotation was computed. [2023-11-29 06:54:42,525 INFO L899 garLoopResultBuilder]: For program point L806-2(lines 806 810) no Hoare annotation was computed. [2023-11-29 06:54:42,525 INFO L899 garLoopResultBuilder]: For program point L588(line 588) no Hoare annotation was computed. [2023-11-29 06:54:42,525 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 605 628) no Hoare annotation was computed. [2023-11-29 06:54:42,525 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 588) no Hoare annotation was computed. [2023-11-29 06:54:42,525 INFO L902 garLoopResultBuilder]: At program point L96(line 96) the Hoare annotation is: true [2023-11-29 06:54:42,525 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 90 119) no Hoare annotation was computed. [2023-11-29 06:54:42,525 INFO L899 garLoopResultBuilder]: For program point L96-1(line 96) no Hoare annotation was computed. [2023-11-29 06:54:42,526 INFO L899 garLoopResultBuilder]: For program point L115(lines 90 119) no Hoare annotation was computed. [2023-11-29 06:54:42,526 INFO L899 garLoopResultBuilder]: For program point L111(line 111) no Hoare annotation was computed. [2023-11-29 06:54:42,526 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 90 119) the Hoare annotation is: true [2023-11-29 06:54:42,526 INFO L899 garLoopResultBuilder]: For program point L104(lines 104 108) no Hoare annotation was computed. [2023-11-29 06:54:42,526 INFO L902 garLoopResultBuilder]: At program point L104-1(lines 104 108) the Hoare annotation is: true [2023-11-29 06:54:42,526 INFO L902 garLoopResultBuilder]: At program point L100-2(lines 100 114) the Hoare annotation is: true [2023-11-29 06:54:42,526 INFO L899 garLoopResultBuilder]: For program point L820(lines 820 826) no Hoare annotation was computed. [2023-11-29 06:54:42,526 INFO L899 garLoopResultBuilder]: For program point L820-1(lines 820 826) no Hoare annotation was computed. [2023-11-29 06:54:42,526 INFO L899 garLoopResultBuilder]: For program point L903(lines 840 907) no Hoare annotation was computed. [2023-11-29 06:54:42,527 INFO L899 garLoopResultBuilder]: For program point L870(lines 870 876) no Hoare annotation was computed. [2023-11-29 06:54:42,527 INFO L899 garLoopResultBuilder]: For program point L870-1(lines 870 876) no Hoare annotation was computed. [2023-11-29 06:54:42,527 INFO L895 garLoopResultBuilder]: At program point L862(line 862) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1 (<= 1 ~waterLevel~0)) (and .cse0 (<= 2 ~waterLevel~0) .cse1 (not (= 0 ~systemActive~0))))) [2023-11-29 06:54:42,527 INFO L895 garLoopResultBuilder]: At program point L900(lines 849 901) the Hoare annotation is: false [2023-11-29 06:54:42,527 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-29 06:54:42,527 INFO L899 garLoopResultBuilder]: For program point L888(lines 888 894) no Hoare annotation was computed. [2023-11-29 06:54:42,528 INFO L895 garLoopResultBuilder]: At program point L822(line 822) the Hoare annotation is: (and (= |ULTIMATE.start_main_~tmp~0#1| 1) (<= 2 ~waterLevel~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (not (= 0 ~systemActive~0))) [2023-11-29 06:54:42,528 INFO L895 garLoopResultBuilder]: At program point L888-2(lines 880 895) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1 (<= 1 ~waterLevel~0)) (and .cse0 (<= 2 ~waterLevel~0) .cse1 (not (= 0 ~systemActive~0))))) [2023-11-29 06:54:42,528 INFO L899 garLoopResultBuilder]: For program point L851(lines 850 899) no Hoare annotation was computed. [2023-11-29 06:54:42,528 INFO L899 garLoopResultBuilder]: For program point L880(lines 880 895) no Hoare annotation was computed. [2023-11-29 06:54:42,528 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-29 06:54:42,528 INFO L895 garLoopResultBuilder]: At program point L872(line 872) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1 (<= 1 ~waterLevel~0)) (and .cse0 (<= 2 ~waterLevel~0) .cse1 (not (= 0 ~systemActive~0))))) [2023-11-29 06:54:42,529 INFO L895 garLoopResultBuilder]: At program point L897(lines 850 899) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1 (<= 1 ~waterLevel~0)) (and .cse0 (<= 2 ~waterLevel~0) .cse1 (not (= 0 ~systemActive~0))))) [2023-11-29 06:54:42,529 INFO L899 garLoopResultBuilder]: For program point L860(lines 860 866) no Hoare annotation was computed. [2023-11-29 06:54:42,529 INFO L899 garLoopResultBuilder]: For program point L860-1(lines 860 866) no Hoare annotation was computed. [2023-11-29 06:54:42,529 INFO L899 garLoopResultBuilder]: For program point L175(lines 175 182) no Hoare annotation was computed. [2023-11-29 06:54:42,529 INFO L899 garLoopResultBuilder]: For program point L175-2(lines 175 182) no Hoare annotation was computed. [2023-11-29 06:54:42,530 INFO L899 garLoopResultBuilder]: For program point L704(lines 704 710) no Hoare annotation was computed. [2023-11-29 06:54:42,530 INFO L899 garLoopResultBuilder]: For program point L704-2(lines 697 713) no Hoare annotation was computed. [2023-11-29 06:54:42,530 INFO L899 garLoopResultBuilder]: For program point L787(lines 787 791) no Hoare annotation was computed. [2023-11-29 06:54:42,530 INFO L899 garLoopResultBuilder]: For program point L787-2(lines 787 791) no Hoare annotation was computed. [2023-11-29 06:54:42,530 INFO L895 garLoopResultBuilder]: At program point L651(line 651) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= 0 ~systemActive~0))) (and (or (not (= ~waterLevel~0 1)) .cse0 (not (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 0)) .cse1) (or .cse0 (< ~waterLevel~0 1) (and (= ~pumpRunning~0 0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~5#1| 0)) .cse1))) [2023-11-29 06:54:42,530 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 637 661) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (< ~waterLevel~0 1) (= 0 ~systemActive~0)) [2023-11-29 06:54:42,530 INFO L899 garLoopResultBuilder]: For program point L645(lines 645 653) no Hoare annotation was computed. [2023-11-29 06:54:42,531 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDry_returnLabel#1(lines 988 1001) no Hoare annotation was computed. [2023-11-29 06:54:42,531 INFO L899 garLoopResultBuilder]: For program point L641(lines 641 658) no Hoare annotation was computed. [2023-11-29 06:54:42,531 INFO L899 garLoopResultBuilder]: For program point L992(lines 992 998) no Hoare annotation was computed. [2023-11-29 06:54:42,531 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 637 661) no Hoare annotation was computed. [2023-11-29 06:54:42,531 INFO L895 garLoopResultBuilder]: At program point L656(line 656) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (< ~waterLevel~0 1) (= 0 ~systemActive~0)) [2023-11-29 06:54:42,531 INFO L899 garLoopResultBuilder]: For program point L656-1(lines 637 661) no Hoare annotation was computed. [2023-11-29 06:54:42,531 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 923 934) no Hoare annotation was computed. [2023-11-29 06:54:42,531 INFO L899 garLoopResultBuilder]: For program point L927-1(lines 923 934) no Hoare annotation was computed. [2023-11-29 06:54:42,532 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 923 934) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse1 (< |old(~waterLevel~0)| 2)) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 .cse1 .cse2) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (= ~waterLevel~0 1)) (or .cse1 .cse2 (= 0 ~systemActive~0)))) [2023-11-29 06:54:42,534 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:54:42,536 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 06:54:42,548 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 06:54:42 BoogieIcfgContainer [2023-11-29 06:54:42,548 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 06:54:42,549 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 06:54:42,549 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 06:54:42,549 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 06:54:42,549 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:54:35" (3/4) ... [2023-11-29 06:54:42,551 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 06:54:42,555 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2023-11-29 06:54:42,555 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2023-11-29 06:54:42,555 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2023-11-29 06:54:42,555 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2023-11-29 06:54:42,555 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2023-11-29 06:54:42,555 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2023-11-29 06:54:42,555 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2023-11-29 06:54:42,563 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2023-11-29 06:54:42,564 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-29 06:54:42,565 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-29 06:54:42,565 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 06:54:42,566 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 06:54:42,680 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cf70a75-5e9e-4a5c-ab9a-cd1e74c2c6e4/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 06:54:42,681 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cf70a75-5e9e-4a5c-ab9a-cd1e74c2c6e4/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 06:54:42,681 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 06:54:42,682 INFO L158 Benchmark]: Toolchain (without parser) took 7714.87ms. Allocated memory was 163.6MB in the beginning and 255.9MB in the end (delta: 92.3MB). Free memory was 115.5MB in the beginning and 142.9MB in the end (delta: -27.4MB). Peak memory consumption was 66.8MB. Max. memory is 16.1GB. [2023-11-29 06:54:42,682 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 163.6MB. Free memory is still 135.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 06:54:42,683 INFO L158 Benchmark]: CACSL2BoogieTranslator took 392.13ms. Allocated memory is still 163.6MB. Free memory was 115.5MB in the beginning and 95.8MB in the end (delta: 19.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-29 06:54:42,683 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.19ms. Allocated memory is still 163.6MB. Free memory was 95.6MB in the beginning and 93.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 06:54:42,684 INFO L158 Benchmark]: Boogie Preprocessor took 45.57ms. Allocated memory is still 163.6MB. Free memory was 93.2MB in the beginning and 90.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 06:54:42,684 INFO L158 Benchmark]: RCFGBuilder took 451.02ms. Allocated memory was 163.6MB in the beginning and 211.8MB in the end (delta: 48.2MB). Free memory was 90.8MB in the beginning and 176.1MB in the end (delta: -85.3MB). Peak memory consumption was 27.4MB. Max. memory is 16.1GB. [2023-11-29 06:54:42,685 INFO L158 Benchmark]: TraceAbstraction took 6639.55ms. Allocated memory was 211.8MB in the beginning and 255.9MB in the end (delta: 44.0MB). Free memory was 176.1MB in the beginning and 150.3MB in the end (delta: 25.8MB). Peak memory consumption was 144.8MB. Max. memory is 16.1GB. [2023-11-29 06:54:42,685 INFO L158 Benchmark]: Witness Printer took 132.92ms. Allocated memory is still 255.9MB. Free memory was 150.3MB in the beginning and 142.9MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-29 06:54:42,687 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 163.6MB. Free memory is still 135.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 392.13ms. Allocated memory is still 163.6MB. Free memory was 115.5MB in the beginning and 95.8MB in the end (delta: 19.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.19ms. Allocated memory is still 163.6MB. Free memory was 95.6MB in the beginning and 93.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.57ms. Allocated memory is still 163.6MB. Free memory was 93.2MB in the beginning and 90.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 451.02ms. Allocated memory was 163.6MB in the beginning and 211.8MB in the end (delta: 48.2MB). Free memory was 90.8MB in the beginning and 176.1MB in the end (delta: -85.3MB). Peak memory consumption was 27.4MB. Max. memory is 16.1GB. * TraceAbstraction took 6639.55ms. Allocated memory was 211.8MB in the beginning and 255.9MB in the end (delta: 44.0MB). Free memory was 176.1MB in the beginning and 150.3MB in the end (delta: 25.8MB). Peak memory consumption was 144.8MB. Max. memory is 16.1GB. * Witness Printer took 132.92ms. Allocated memory is still 255.9MB. Free memory was 150.3MB in the beginning and 142.9MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [87] - GenericResultAtLocation [Line: 188]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [188] - GenericResultAtLocation [Line: 554]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [554] - GenericResultAtLocation [Line: 583]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [583] - GenericResultAtLocation [Line: 592]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [592] - GenericResultAtLocation [Line: 839]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [839] - GenericResultAtLocation [Line: 908]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [908] * 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: 588]: 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 8 procedures, 71 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.6s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1045 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1020 mSDsluCounter, 2200 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1422 mSDsCounter, 218 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1734 IncrementalHoareTripleChecker+Invalid, 1952 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 218 mSolverCounterUnsat, 778 mSDtfsCounter, 1734 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 482 GetRequests, 392 SyntacticMatches, 9 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=721occurred in iteration=11, InterpolantAutomatonStates: 86, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 12 MinimizatonAttempts, 169 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 21 LocationsWithAnnotation, 782 PreInvPairs, 838 NumberOfFragments, 355 HoareAnnotationTreeSize, 782 FomulaSimplifications, 811 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 21 FomulaSimplificationsInter, 1778 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 775 NumberOfCodeBlocks, 775 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 822 ConstructedInterpolants, 0 QuantifiedInterpolants, 1418 SizeOfPredicates, 6 NumberOfNonLiveVariables, 942 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 16 InterpolantComputations, 11 PerfectInterpolantSequences, 348/379 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: 849]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 850]: Loop Invariant Derived loop invariant: (((((pumpRunning == 0) && (tmp == 1)) && (splverifierCounter == 0)) && (1 <= waterLevel)) || ((((tmp == 1) && (2 <= waterLevel)) && (splverifierCounter == 0)) && !((0 == systemActive)))) - InvariantResult [Line: 100]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-11-29 06:54:42,704 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cf70a75-5e9e-4a5c-ab9a-cd1e74c2c6e4/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