./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product38.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe501b5-9c4e-4f8c-9206-0351e0531d61/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe501b5-9c4e-4f8c-9206-0351e0531d61/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe501b5-9c4e-4f8c-9206-0351e0531d61/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe501b5-9c4e-4f8c-9206-0351e0531d61/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product38.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe501b5-9c4e-4f8c-9206-0351e0531d61/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe501b5-9c4e-4f8c-9206-0351e0531d61/bin/uautomizer-verify-bycVGegfSx --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 68c6d60a43782147acd714b0904a144255717c2aa47fb6b6f8991672a1483369 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 20:56:55,738 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 20:56:55,862 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe501b5-9c4e-4f8c-9206-0351e0531d61/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-21 20:56:55,867 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 20:56:55,869 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 20:56:55,909 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 20:56:55,911 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 20:56:55,912 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 20:56:55,913 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 20:56:55,918 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 20:56:55,919 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 20:56:55,920 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 20:56:55,922 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 20:56:55,924 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 20:56:55,924 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 20:56:55,925 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 20:56:55,925 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 20:56:55,926 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 20:56:55,926 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 20:56:55,927 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 20:56:55,927 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 20:56:55,928 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 20:56:55,928 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 20:56:55,929 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 20:56:55,930 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 20:56:55,930 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 20:56:55,931 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 20:56:55,932 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 20:56:55,932 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 20:56:55,933 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 20:56:55,934 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 20:56:55,935 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 20:56:55,935 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 20:56:55,936 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 20:56:55,936 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 20:56:55,936 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 20:56:55,937 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 20:56:55,937 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 20:56:55,937 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 20:56:55,938 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 20:56:55,938 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 20:56:55,938 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 20:56:55,939 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_bfe501b5-9c4e-4f8c-9206-0351e0531d61/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe501b5-9c4e-4f8c-9206-0351e0531d61/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68c6d60a43782147acd714b0904a144255717c2aa47fb6b6f8991672a1483369 [2023-11-21 20:56:56,288 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 20:56:56,310 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 20:56:56,313 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 20:56:56,315 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 20:56:56,315 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 20:56:56,317 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe501b5-9c4e-4f8c-9206-0351e0531d61/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/product-lines/minepump_spec5_product38.cil.c [2023-11-21 20:56:59,567 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 20:56:59,822 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 20:56:59,823 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe501b5-9c4e-4f8c-9206-0351e0531d61/sv-benchmarks/c/product-lines/minepump_spec5_product38.cil.c [2023-11-21 20:56:59,839 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe501b5-9c4e-4f8c-9206-0351e0531d61/bin/uautomizer-verify-bycVGegfSx/data/202cb4fd7/b8f2f32136c8477c82543fc2594f920a/FLAG2b932a2bd [2023-11-21 20:56:59,856 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe501b5-9c4e-4f8c-9206-0351e0531d61/bin/uautomizer-verify-bycVGegfSx/data/202cb4fd7/b8f2f32136c8477c82543fc2594f920a [2023-11-21 20:56:59,859 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 20:56:59,862 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 20:56:59,864 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 20:56:59,864 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 20:56:59,875 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 20:56:59,877 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 08:56:59" (1/1) ... [2023-11-21 20:56:59,878 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cb0b7e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:56:59, skipping insertion in model container [2023-11-21 20:56:59,879 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 08:56:59" (1/1) ... [2023-11-21 20:56:59,936 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 20:57:00,120 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_bfe501b5-9c4e-4f8c-9206-0351e0531d61/sv-benchmarks/c/product-lines/minepump_spec5_product38.cil.c[1605,1618] [2023-11-21 20:57:00,253 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 20:57:00,268 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 20:57:00,280 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] [2023-11-21 20:57:00,282 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [58] [2023-11-21 20:57:00,283 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [164] [2023-11-21 20:57:00,283 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [215] [2023-11-21 20:57:00,283 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [581] [2023-11-21 20:57:00,284 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [679] [2023-11-21 20:57:00,284 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [871] [2023-11-21 20:57:00,284 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [906] [2023-11-21 20:57:00,290 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_bfe501b5-9c4e-4f8c-9206-0351e0531d61/sv-benchmarks/c/product-lines/minepump_spec5_product38.cil.c[1605,1618] [2023-11-21 20:57:00,352 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 20:57:00,381 INFO L206 MainTranslator]: Completed translation [2023-11-21 20:57:00,382 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:57:00 WrapperNode [2023-11-21 20:57:00,382 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 20:57:00,383 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 20:57:00,383 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 20:57:00,383 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 20:57:00,389 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:57:00" (1/1) ... [2023-11-21 20:57:00,405 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:57:00" (1/1) ... [2023-11-21 20:57:00,438 INFO L138 Inliner]: procedures = 56, calls = 101, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 206 [2023-11-21 20:57:00,438 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 20:57:00,439 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 20:57:00,439 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 20:57:00,439 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 20:57:00,454 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:57:00" (1/1) ... [2023-11-21 20:57:00,455 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:57:00" (1/1) ... [2023-11-21 20:57:00,458 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:57:00" (1/1) ... [2023-11-21 20:57:00,472 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 20:57:00,473 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:57:00" (1/1) ... [2023-11-21 20:57:00,473 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:57:00" (1/1) ... [2023-11-21 20:57:00,482 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:57:00" (1/1) ... [2023-11-21 20:57:00,488 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:57:00" (1/1) ... [2023-11-21 20:57:00,491 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:57:00" (1/1) ... [2023-11-21 20:57:00,492 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:57:00" (1/1) ... [2023-11-21 20:57:00,496 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 20:57:00,497 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 20:57:00,498 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 20:57:00,498 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 20:57:00,499 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:57:00" (1/1) ... [2023-11-21 20:57:00,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 20:57:00,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe501b5-9c4e-4f8c-9206-0351e0531d61/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:57:00,549 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe501b5-9c4e-4f8c-9206-0351e0531d61/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 20:57:00,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe501b5-9c4e-4f8c-9206-0351e0531d61/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 20:57:00,599 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 20:57:00,600 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-11-21 20:57:00,600 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-11-21 20:57:00,600 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-21 20:57:00,600 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-21 20:57:00,600 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-21 20:57:00,600 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-21 20:57:00,600 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-11-21 20:57:00,601 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-11-21 20:57:00,601 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-21 20:57:00,601 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-21 20:57:00,601 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-11-21 20:57:00,601 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-11-21 20:57:00,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 20:57:00,602 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-21 20:57:00,602 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-21 20:57:00,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 20:57:00,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 20:57:00,684 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 20:57:00,686 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 20:57:01,018 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 20:57:01,190 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 20:57:01,190 INFO L308 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-21 20:57:01,192 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 08:57:01 BoogieIcfgContainer [2023-11-21 20:57:01,192 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 20:57:01,195 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 20:57:01,195 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 20:57:01,199 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 20:57:01,199 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 08:56:59" (1/3) ... [2023-11-21 20:57:01,200 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16efb674 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 08:57:01, skipping insertion in model container [2023-11-21 20:57:01,200 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:57:00" (2/3) ... [2023-11-21 20:57:01,201 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16efb674 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 08:57:01, skipping insertion in model container [2023-11-21 20:57:01,201 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 08:57:01" (3/3) ... [2023-11-21 20:57:01,202 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product38.cil.c [2023-11-21 20:57:01,224 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 20:57:01,225 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 20:57:01,282 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 20:57:01,289 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;@76147dd1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 20:57:01,289 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 20:57:01,294 INFO L276 IsEmpty]: Start isEmpty. Operand has 58 states, 37 states have (on average 1.4324324324324325) internal successors, (53), 45 states have internal predecessors, (53), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-21 20:57:01,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-21 20:57:01,305 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:57:01,306 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 20:57:01,307 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 20:57:01,313 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:57:01,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1968410651, now seen corresponding path program 1 times [2023-11-21 20:57:01,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:57:01,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664162999] [2023-11-21 20:57:01,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:57:01,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:57:01,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:01,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-21 20:57:01,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:01,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-21 20:57:01,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:01,572 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 20:57:01,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:57:01,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664162999] [2023-11-21 20:57:01,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664162999] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 20:57:01,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 20:57:01,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 20:57:01,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102442232] [2023-11-21 20:57:01,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 20:57:01,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-21 20:57:01,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:57:01,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-21 20:57:01,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-21 20:57:01,634 INFO L87 Difference]: Start difference. First operand has 58 states, 37 states have (on average 1.4324324324324325) internal successors, (53), 45 states have internal predecessors, (53), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-21 20:57:01,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 20:57:01,713 INFO L93 Difference]: Finished difference Result 114 states and 155 transitions. [2023-11-21 20:57:01,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 20:57:01,716 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2023-11-21 20:57:01,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 20:57:01,725 INFO L225 Difference]: With dead ends: 114 [2023-11-21 20:57:01,726 INFO L226 Difference]: Without dead ends: 53 [2023-11-21 20:57:01,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-21 20:57:01,734 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 20:57:01,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 57 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 20:57:01,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2023-11-21 20:57:01,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2023-11-21 20:57:01,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 34 states have (on average 1.3235294117647058) internal successors, (45), 41 states have internal predecessors, (45), 12 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-21 20:57:01,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 68 transitions. [2023-11-21 20:57:01,781 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 68 transitions. Word has length 21 [2023-11-21 20:57:01,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 20:57:01,782 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 68 transitions. [2023-11-21 20:57:01,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-21 20:57:01,783 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 68 transitions. [2023-11-21 20:57:01,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-21 20:57:01,785 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:57:01,786 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 20:57:01,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 20:57:01,786 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 20:57:01,787 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:57:01,787 INFO L85 PathProgramCache]: Analyzing trace with hash -212175465, now seen corresponding path program 1 times [2023-11-21 20:57:01,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:57:01,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317157371] [2023-11-21 20:57:01,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:57:01,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:57:01,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:01,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-21 20:57:01,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:01,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-21 20:57:01,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:01,897 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 20:57:01,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:57:01,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317157371] [2023-11-21 20:57:01,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317157371] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 20:57:01,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 20:57:01,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 20:57:01,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468679048] [2023-11-21 20:57:01,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 20:57:01,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 20:57:01,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:57:01,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 20:57:01,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 20:57:01,903 INFO L87 Difference]: Start difference. First operand 53 states and 68 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-21 20:57:01,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 20:57:01,962 INFO L93 Difference]: Finished difference Result 83 states and 107 transitions. [2023-11-21 20:57:01,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 20:57:01,965 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2023-11-21 20:57:01,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 20:57:01,966 INFO L225 Difference]: With dead ends: 83 [2023-11-21 20:57:01,967 INFO L226 Difference]: Without dead ends: 45 [2023-11-21 20:57:01,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 20:57:01,969 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 7 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 20:57:01,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 77 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 20:57:01,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2023-11-21 20:57:01,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2023-11-21 20:57:01,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 36 states have internal predecessors, (39), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-21 20:57:01,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 57 transitions. [2023-11-21 20:57:01,994 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 57 transitions. Word has length 22 [2023-11-21 20:57:01,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 20:57:01,994 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 57 transitions. [2023-11-21 20:57:01,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-21 20:57:01,995 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 57 transitions. [2023-11-21 20:57:01,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-21 20:57:01,996 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:57:01,997 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 20:57:01,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 20:57:01,997 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 20:57:01,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:57:01,998 INFO L85 PathProgramCache]: Analyzing trace with hash -790718053, now seen corresponding path program 1 times [2023-11-21 20:57:01,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:57:01,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219195745] [2023-11-21 20:57:01,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:57:01,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:57:02,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:02,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-21 20:57:02,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:02,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-21 20:57:02,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:02,321 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-21 20:57:02,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:57:02,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219195745] [2023-11-21 20:57:02,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219195745] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 20:57:02,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 20:57:02,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-21 20:57:02,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991836444] [2023-11-21 20:57:02,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 20:57:02,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 20:57:02,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:57:02,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 20:57:02,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-21 20:57:02,325 INFO L87 Difference]: Start difference. First operand 45 states and 57 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-21 20:57:02,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 20:57:02,508 INFO L93 Difference]: Finished difference Result 124 states and 161 transitions. [2023-11-21 20:57:02,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-21 20:57:02,509 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 2 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 24 [2023-11-21 20:57:02,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 20:57:02,512 INFO L225 Difference]: With dead ends: 124 [2023-11-21 20:57:02,512 INFO L226 Difference]: Without dead ends: 81 [2023-11-21 20:57:02,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-21 20:57:02,515 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 30 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 20:57:02,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 200 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 20:57:02,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2023-11-21 20:57:02,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 79. [2023-11-21 20:57:02,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 52 states have (on average 1.2692307692307692) internal successors, (66), 59 states have internal predecessors, (66), 14 states have call successors, (14), 12 states have call predecessors, (14), 12 states have return successors, (18), 14 states have call predecessors, (18), 14 states have call successors, (18) [2023-11-21 20:57:02,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 98 transitions. [2023-11-21 20:57:02,534 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 98 transitions. Word has length 24 [2023-11-21 20:57:02,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 20:57:02,534 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 98 transitions. [2023-11-21 20:57:02,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-21 20:57:02,535 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 98 transitions. [2023-11-21 20:57:02,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-21 20:57:02,536 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:57:02,537 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-21 20:57:02,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 20:57:02,537 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 20:57:02,538 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:57:02,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1803828152, now seen corresponding path program 1 times [2023-11-21 20:57:02,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:57:02,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330420993] [2023-11-21 20:57:02,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:57:02,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:57:02,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:02,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-21 20:57:02,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:02,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-21 20:57:02,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:02,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-21 20:57:02,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:02,999 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 20:57:02,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:57:02,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330420993] [2023-11-21 20:57:02,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330420993] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 20:57:03,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 20:57:03,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-21 20:57:03,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259425988] [2023-11-21 20:57:03,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 20:57:03,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-21 20:57:03,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:57:03,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-21 20:57:03,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-21 20:57:03,003 INFO L87 Difference]: Start difference. First operand 79 states and 98 transitions. Second operand has 8 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-21 20:57:03,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 20:57:03,469 INFO L93 Difference]: Finished difference Result 231 states and 289 transitions. [2023-11-21 20:57:03,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-21 20:57:03,470 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 32 [2023-11-21 20:57:03,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 20:57:03,479 INFO L225 Difference]: With dead ends: 231 [2023-11-21 20:57:03,479 INFO L226 Difference]: Without dead ends: 154 [2023-11-21 20:57:03,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-11-21 20:57:03,492 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 109 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-21 20:57:03,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 230 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-21 20:57:03,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2023-11-21 20:57:03,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 149. [2023-11-21 20:57:03,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 99 states have (on average 1.2424242424242424) internal successors, (123), 109 states have internal predecessors, (123), 26 states have call successors, (26), 21 states have call predecessors, (26), 23 states have return successors, (36), 26 states have call predecessors, (36), 26 states have call successors, (36) [2023-11-21 20:57:03,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 185 transitions. [2023-11-21 20:57:03,553 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 185 transitions. Word has length 32 [2023-11-21 20:57:03,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 20:57:03,554 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 185 transitions. [2023-11-21 20:57:03,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-21 20:57:03,555 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 185 transitions. [2023-11-21 20:57:03,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-21 20:57:03,563 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:57:03,564 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-21 20:57:03,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 20:57:03,566 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 20:57:03,567 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:57:03,567 INFO L85 PathProgramCache]: Analyzing trace with hash -155294572, now seen corresponding path program 1 times [2023-11-21 20:57:03,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:57:03,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269626528] [2023-11-21 20:57:03,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:57:03,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:57:03,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:03,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 20:57:03,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:03,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-21 20:57:03,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:03,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-21 20:57:03,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:03,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-21 20:57:03,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:03,988 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 20:57:03,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:57:03,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269626528] [2023-11-21 20:57:03,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269626528] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 20:57:03,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 20:57:03,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-21 20:57:03,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652626881] [2023-11-21 20:57:03,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 20:57:03,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-21 20:57:03,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:57:03,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-21 20:57:03,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-21 20:57:03,991 INFO L87 Difference]: Start difference. First operand 149 states and 185 transitions. Second operand has 9 states, 8 states have (on average 3.125) internal successors, (25), 7 states have internal predecessors, (25), 4 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-21 20:57:04,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 20:57:04,617 INFO L93 Difference]: Finished difference Result 378 states and 472 transitions. [2023-11-21 20:57:04,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-21 20:57:04,621 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.125) internal successors, (25), 7 states have internal predecessors, (25), 4 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 35 [2023-11-21 20:57:04,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 20:57:04,624 INFO L225 Difference]: With dead ends: 378 [2023-11-21 20:57:04,624 INFO L226 Difference]: Without dead ends: 265 [2023-11-21 20:57:04,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=116, Invalid=346, Unknown=0, NotChecked=0, Total=462 [2023-11-21 20:57:04,627 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 268 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-21 20:57:04,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 205 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-21 20:57:04,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2023-11-21 20:57:04,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 239. [2023-11-21 20:57:04,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 160 states have (on average 1.25) internal successors, (200), 177 states have internal predecessors, (200), 41 states have call successors, (41), 31 states have call predecessors, (41), 37 states have return successors, (58), 43 states have call predecessors, (58), 41 states have call successors, (58) [2023-11-21 20:57:04,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 299 transitions. [2023-11-21 20:57:04,669 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 299 transitions. Word has length 35 [2023-11-21 20:57:04,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 20:57:04,670 INFO L495 AbstractCegarLoop]: Abstraction has 239 states and 299 transitions. [2023-11-21 20:57:04,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.125) internal successors, (25), 7 states have internal predecessors, (25), 4 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-21 20:57:04,670 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 299 transitions. [2023-11-21 20:57:04,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-21 20:57:04,679 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:57:04,679 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2023-11-21 20:57:04,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 20:57:04,680 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 20:57:04,680 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:57:04,681 INFO L85 PathProgramCache]: Analyzing trace with hash -859295708, now seen corresponding path program 1 times [2023-11-21 20:57:04,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:57:04,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285698101] [2023-11-21 20:57:04,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:57:04,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:57:04,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:04,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 20:57:04,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:04,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-21 20:57:04,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:04,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:57:04,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:04,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-21 20:57:04,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:04,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-21 20:57:04,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:04,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-21 20:57:04,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:04,852 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-21 20:57:04,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:57:04,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285698101] [2023-11-21 20:57:04,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285698101] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 20:57:04,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [4638015] [2023-11-21 20:57:04,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:57:04,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 20:57:04,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe501b5-9c4e-4f8c-9206-0351e0531d61/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:57:04,855 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe501b5-9c4e-4f8c-9206-0351e0531d61/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 20:57:04,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe501b5-9c4e-4f8c-9206-0351e0531d61/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-21 20:57:04,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:04,964 INFO L262 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-21 20:57:04,973 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 20:57:05,138 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 20:57:05,139 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 20:57:05,341 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-21 20:57:05,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [4638015] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 20:57:05,342 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 20:57:05,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 12 [2023-11-21 20:57:05,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923136050] [2023-11-21 20:57:05,343 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 20:57:05,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-21 20:57:05,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:57:05,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-21 20:57:05,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-11-21 20:57:05,345 INFO L87 Difference]: Start difference. First operand 239 states and 299 transitions. Second operand has 12 states, 10 states have (on average 6.7) internal successors, (67), 8 states have internal predecessors, (67), 5 states have call successors, (15), 7 states have call predecessors, (15), 6 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-21 20:57:06,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 20:57:06,264 INFO L93 Difference]: Finished difference Result 485 states and 612 transitions. [2023-11-21 20:57:06,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-21 20:57:06,265 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 6.7) internal successors, (67), 8 states have internal predecessors, (67), 5 states have call successors, (15), 7 states have call predecessors, (15), 6 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) Word has length 52 [2023-11-21 20:57:06,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 20:57:06,268 INFO L225 Difference]: With dead ends: 485 [2023-11-21 20:57:06,268 INFO L226 Difference]: Without dead ends: 248 [2023-11-21 20:57:06,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 118 SyntacticMatches, 4 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=253, Invalid=937, Unknown=0, NotChecked=0, Total=1190 [2023-11-21 20:57:06,271 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 184 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-21 20:57:06,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 407 Invalid, 649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 537 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-21 20:57:06,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2023-11-21 20:57:06,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 246. [2023-11-21 20:57:06,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 163 states have (on average 1.177914110429448) internal successors, (192), 181 states have internal predecessors, (192), 43 states have call successors, (43), 35 states have call predecessors, (43), 39 states have return successors, (51), 43 states have call predecessors, (51), 43 states have call successors, (51) [2023-11-21 20:57:06,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 286 transitions. [2023-11-21 20:57:06,314 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 286 transitions. Word has length 52 [2023-11-21 20:57:06,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 20:57:06,315 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 286 transitions. [2023-11-21 20:57:06,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 6.7) internal successors, (67), 8 states have internal predecessors, (67), 5 states have call successors, (15), 7 states have call predecessors, (15), 6 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-21 20:57:06,315 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 286 transitions. [2023-11-21 20:57:06,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-21 20:57:06,317 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:57:06,317 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-21 20:57:06,344 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe501b5-9c4e-4f8c-9206-0351e0531d61/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-21 20:57:06,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe501b5-9c4e-4f8c-9206-0351e0531d61/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 20:57:06,539 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 20:57:06,539 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:57:06,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1828751455, now seen corresponding path program 1 times [2023-11-21 20:57:06,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:57:06,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263038348] [2023-11-21 20:57:06,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:57:06,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:57:06,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:06,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 20:57:06,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:06,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-21 20:57:06,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:06,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:57:06,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:06,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-21 20:57:06,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:06,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-21 20:57:06,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:06,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:57:06,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:06,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-21 20:57:06,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:06,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-21 20:57:06,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:06,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-21 20:57:06,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:06,945 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 31 proven. 5 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-11-21 20:57:06,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:57:06,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263038348] [2023-11-21 20:57:06,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263038348] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 20:57:06,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1023820730] [2023-11-21 20:57:06,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:57:06,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 20:57:06,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe501b5-9c4e-4f8c-9206-0351e0531d61/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:57:06,947 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe501b5-9c4e-4f8c-9206-0351e0531d61/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 20:57:06,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe501b5-9c4e-4f8c-9206-0351e0531d61/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-21 20:57:07,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:07,075 INFO L262 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-21 20:57:07,083 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 20:57:07,372 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 58 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-21 20:57:07,372 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 20:57:07,719 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 45 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-11-21 20:57:07,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1023820730] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 20:57:07,720 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 20:57:07,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 22 [2023-11-21 20:57:07,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258194413] [2023-11-21 20:57:07,721 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 20:57:07,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-21 20:57:07,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:57:07,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-21 20:57:07,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2023-11-21 20:57:07,752 INFO L87 Difference]: Start difference. First operand 246 states and 286 transitions. Second operand has 22 states, 22 states have (on average 4.681818181818182) internal successors, (103), 20 states have internal predecessors, (103), 7 states have call successors, (21), 7 states have call predecessors, (21), 7 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-21 20:57:09,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 20:57:09,588 INFO L93 Difference]: Finished difference Result 720 states and 911 transitions. [2023-11-21 20:57:09,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2023-11-21 20:57:09,589 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 4.681818181818182) internal successors, (103), 20 states have internal predecessors, (103), 7 states have call successors, (21), 7 states have call predecessors, (21), 7 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) Word has length 80 [2023-11-21 20:57:09,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 20:57:09,597 INFO L225 Difference]: With dead ends: 720 [2023-11-21 20:57:09,598 INFO L226 Difference]: Without dead ends: 468 [2023-11-21 20:57:09,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 792 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=635, Invalid=2671, Unknown=0, NotChecked=0, Total=3306 [2023-11-21 20:57:09,602 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 391 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 1121 mSolverCounterSat, 260 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 1381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 260 IncrementalHoareTripleChecker+Valid, 1121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-21 20:57:09,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [394 Valid, 499 Invalid, 1381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [260 Valid, 1121 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-21 20:57:09,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2023-11-21 20:57:09,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 324. [2023-11-21 20:57:09,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 214 states have (on average 1.1401869158878504) internal successors, (244), 236 states have internal predecessors, (244), 54 states have call successors, (54), 49 states have call predecessors, (54), 55 states have return successors, (69), 55 states have call predecessors, (69), 54 states have call successors, (69) [2023-11-21 20:57:09,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 367 transitions. [2023-11-21 20:57:09,675 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 367 transitions. Word has length 80 [2023-11-21 20:57:09,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 20:57:09,676 INFO L495 AbstractCegarLoop]: Abstraction has 324 states and 367 transitions. [2023-11-21 20:57:09,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 4.681818181818182) internal successors, (103), 20 states have internal predecessors, (103), 7 states have call successors, (21), 7 states have call predecessors, (21), 7 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-21 20:57:09,676 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 367 transitions. [2023-11-21 20:57:09,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-21 20:57:09,678 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:57:09,678 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 20:57:09,698 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe501b5-9c4e-4f8c-9206-0351e0531d61/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-21 20:57:09,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe501b5-9c4e-4f8c-9206-0351e0531d61/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 20:57:09,890 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 20:57:09,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:57:09,891 INFO L85 PathProgramCache]: Analyzing trace with hash 849835123, now seen corresponding path program 1 times [2023-11-21 20:57:09,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:57:09,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046085162] [2023-11-21 20:57:09,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:57:09,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:57:09,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:10,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 20:57:10,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:10,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-21 20:57:10,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:10,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:57:10,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:10,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-21 20:57:10,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:10,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-21 20:57:10,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:10,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:57:10,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:10,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-21 20:57:10,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:10,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-21 20:57:10,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:10,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-21 20:57:10,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:10,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-21 20:57:10,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:10,798 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 26 proven. 27 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-11-21 20:57:10,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:57:10,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046085162] [2023-11-21 20:57:10,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046085162] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 20:57:10,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [283461343] [2023-11-21 20:57:10,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:57:10,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 20:57:10,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe501b5-9c4e-4f8c-9206-0351e0531d61/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:57:10,801 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe501b5-9c4e-4f8c-9206-0351e0531d61/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 20:57:10,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe501b5-9c4e-4f8c-9206-0351e0531d61/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-21 20:57:10,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:10,938 INFO L262 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-21 20:57:10,952 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 20:57:11,512 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 53 proven. 17 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-21 20:57:11,512 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 20:57:12,187 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 49 proven. 5 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-21 20:57:12,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [283461343] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 20:57:12,187 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 20:57:12,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 12, 11] total 33 [2023-11-21 20:57:12,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615699848] [2023-11-21 20:57:12,188 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 20:57:12,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-11-21 20:57:12,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:57:12,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-11-21 20:57:12,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=881, Unknown=0, NotChecked=0, Total=1056 [2023-11-21 20:57:12,191 INFO L87 Difference]: Start difference. First operand 324 states and 367 transitions. Second operand has 33 states, 33 states have (on average 4.2727272727272725) internal successors, (141), 31 states have internal predecessors, (141), 15 states have call successors, (27), 9 states have call predecessors, (27), 12 states have return successors, (25), 17 states have call predecessors, (25), 14 states have call successors, (25) [2023-11-21 20:57:14,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 20:57:14,582 INFO L93 Difference]: Finished difference Result 920 states and 1073 transitions. [2023-11-21 20:57:14,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2023-11-21 20:57:14,582 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 4.2727272727272725) internal successors, (141), 31 states have internal predecessors, (141), 15 states have call successors, (27), 9 states have call predecessors, (27), 12 states have return successors, (25), 17 states have call predecessors, (25), 14 states have call successors, (25) Word has length 85 [2023-11-21 20:57:14,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 20:57:14,588 INFO L225 Difference]: With dead ends: 920 [2023-11-21 20:57:14,588 INFO L226 Difference]: Without dead ends: 745 [2023-11-21 20:57:14,592 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 204 SyntacticMatches, 4 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2000 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1041, Invalid=5439, Unknown=0, NotChecked=0, Total=6480 [2023-11-21 20:57:14,594 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 854 mSDsluCounter, 928 mSDsCounter, 0 mSdLazyCounter, 1774 mSolverCounterSat, 620 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 858 SdHoareTripleChecker+Valid, 1053 SdHoareTripleChecker+Invalid, 2394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 620 IncrementalHoareTripleChecker+Valid, 1774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-21 20:57:14,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [858 Valid, 1053 Invalid, 2394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [620 Valid, 1774 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-21 20:57:14,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2023-11-21 20:57:14,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 661. [2023-11-21 20:57:14,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 437 states have (on average 1.137299771167048) internal successors, (497), 475 states have internal predecessors, (497), 113 states have call successors, (113), 105 states have call predecessors, (113), 110 states have return successors, (141), 110 states have call predecessors, (141), 113 states have call successors, (141) [2023-11-21 20:57:14,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 751 transitions. [2023-11-21 20:57:14,698 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 751 transitions. Word has length 85 [2023-11-21 20:57:14,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 20:57:14,699 INFO L495 AbstractCegarLoop]: Abstraction has 661 states and 751 transitions. [2023-11-21 20:57:14,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 4.2727272727272725) internal successors, (141), 31 states have internal predecessors, (141), 15 states have call successors, (27), 9 states have call predecessors, (27), 12 states have return successors, (25), 17 states have call predecessors, (25), 14 states have call successors, (25) [2023-11-21 20:57:14,700 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 751 transitions. [2023-11-21 20:57:14,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-21 20:57:14,702 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:57:14,702 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 20:57:14,729 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe501b5-9c4e-4f8c-9206-0351e0531d61/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-21 20:57:14,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe501b5-9c4e-4f8c-9206-0351e0531d61/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 20:57:14,918 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 20:57:14,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:57:14,919 INFO L85 PathProgramCache]: Analyzing trace with hash -763023879, now seen corresponding path program 2 times [2023-11-21 20:57:14,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:57:14,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669712574] [2023-11-21 20:57:14,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:57:14,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:57:14,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:15,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 20:57:15,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:15,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-21 20:57:15,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:15,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:57:15,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:15,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-21 20:57:15,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:15,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-21 20:57:15,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:15,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:57:15,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:15,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-21 20:57:15,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:15,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-21 20:57:15,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:15,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-21 20:57:15,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:15,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-21 20:57:15,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:15,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-21 20:57:15,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:15,893 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 21 proven. 33 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-11-21 20:57:15,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:57:15,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669712574] [2023-11-21 20:57:15,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669712574] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 20:57:15,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [991365094] [2023-11-21 20:57:15,894 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-21 20:57:15,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 20:57:15,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe501b5-9c4e-4f8c-9206-0351e0531d61/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:57:15,896 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe501b5-9c4e-4f8c-9206-0351e0531d61/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 20:57:15,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe501b5-9c4e-4f8c-9206-0351e0531d61/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-21 20:57:16,019 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-21 20:57:16,019 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 20:57:16,022 INFO L262 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-21 20:57:16,032 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 20:57:16,404 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 54 proven. 15 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-21 20:57:16,404 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 20:57:17,422 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 44 proven. 10 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-11-21 20:57:17,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [991365094] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 20:57:17,423 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 20:57:17,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 11, 13] total 34 [2023-11-21 20:57:17,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463773297] [2023-11-21 20:57:17,423 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 20:57:17,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-11-21 20:57:17,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:57:17,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-11-21 20:57:17,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=946, Unknown=0, NotChecked=0, Total=1122 [2023-11-21 20:57:17,427 INFO L87 Difference]: Start difference. First operand 661 states and 751 transitions. Second operand has 34 states, 31 states have (on average 4.258064516129032) internal successors, (132), 31 states have internal predecessors, (132), 15 states have call successors, (28), 9 states have call predecessors, (28), 12 states have return successors, (26), 16 states have call predecessors, (26), 15 states have call successors, (26) [2023-11-21 20:57:19,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 20:57:19,919 INFO L93 Difference]: Finished difference Result 1256 states and 1428 transitions. [2023-11-21 20:57:19,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-11-21 20:57:19,920 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 31 states have (on average 4.258064516129032) internal successors, (132), 31 states have internal predecessors, (132), 15 states have call successors, (28), 9 states have call predecessors, (28), 12 states have return successors, (26), 16 states have call predecessors, (26), 15 states have call successors, (26) Word has length 88 [2023-11-21 20:57:19,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 20:57:19,924 INFO L225 Difference]: With dead ends: 1256 [2023-11-21 20:57:19,925 INFO L226 Difference]: Without dead ends: 633 [2023-11-21 20:57:19,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1235 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=776, Invalid=4194, Unknown=0, NotChecked=0, Total=4970 [2023-11-21 20:57:19,930 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 977 mSDsluCounter, 732 mSDsCounter, 0 mSdLazyCounter, 1577 mSolverCounterSat, 583 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 983 SdHoareTripleChecker+Valid, 819 SdHoareTripleChecker+Invalid, 2160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 583 IncrementalHoareTripleChecker+Valid, 1577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-21 20:57:19,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [983 Valid, 819 Invalid, 2160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [583 Valid, 1577 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-21 20:57:19,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2023-11-21 20:57:19,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 621. [2023-11-21 20:57:20,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 621 states, 409 states have (on average 1.1320293398533008) internal successors, (463), 447 states have internal predecessors, (463), 106 states have call successors, (106), 98 states have call predecessors, (106), 105 states have return successors, (129), 102 states have call predecessors, (129), 106 states have call successors, (129) [2023-11-21 20:57:20,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 698 transitions. [2023-11-21 20:57:20,005 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 698 transitions. Word has length 88 [2023-11-21 20:57:20,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 20:57:20,006 INFO L495 AbstractCegarLoop]: Abstraction has 621 states and 698 transitions. [2023-11-21 20:57:20,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 31 states have (on average 4.258064516129032) internal successors, (132), 31 states have internal predecessors, (132), 15 states have call successors, (28), 9 states have call predecessors, (28), 12 states have return successors, (26), 16 states have call predecessors, (26), 15 states have call successors, (26) [2023-11-21 20:57:20,007 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 698 transitions. [2023-11-21 20:57:20,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-21 20:57:20,009 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:57:20,010 INFO L195 NwaCegarLoop]: trace histogram [7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-21 20:57:20,036 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe501b5-9c4e-4f8c-9206-0351e0531d61/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-21 20:57:20,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe501b5-9c4e-4f8c-9206-0351e0531d61/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-21 20:57:20,231 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 20:57:20,232 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:57:20,232 INFO L85 PathProgramCache]: Analyzing trace with hash 682267221, now seen corresponding path program 1 times [2023-11-21 20:57:20,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:57:20,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885160075] [2023-11-21 20:57:20,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:57:20,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:57:20,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:20,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 20:57:20,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:20,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-21 20:57:20,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:20,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:57:20,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:20,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-21 20:57:20,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:20,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-21 20:57:20,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:20,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:57:20,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:20,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-21 20:57:20,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:20,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-21 20:57:20,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:20,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-21 20:57:20,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:20,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-21 20:57:20,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:20,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:57:20,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:20,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-21 20:57:20,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:20,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-21 20:57:20,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:20,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-21 20:57:20,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:20,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-21 20:57:20,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:20,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-11-21 20:57:20,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:20,573 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 71 proven. 27 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2023-11-21 20:57:20,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:57:20,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885160075] [2023-11-21 20:57:20,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885160075] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 20:57:20,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1811062152] [2023-11-21 20:57:20,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:57:20,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 20:57:20,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe501b5-9c4e-4f8c-9206-0351e0531d61/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:57:20,576 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe501b5-9c4e-4f8c-9206-0351e0531d61/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 20:57:20,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe501b5-9c4e-4f8c-9206-0351e0531d61/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-21 20:57:20,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:20,722 INFO L262 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-21 20:57:20,727 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 20:57:20,892 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 124 proven. 7 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-21 20:57:20,892 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 20:57:21,312 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 76 proven. 36 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2023-11-21 20:57:21,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1811062152] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 20:57:21,313 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 20:57:21,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 21 [2023-11-21 20:57:21,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505047388] [2023-11-21 20:57:21,313 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 20:57:21,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-11-21 20:57:21,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:57:21,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-11-21 20:57:21,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=354, Unknown=0, NotChecked=0, Total=420 [2023-11-21 20:57:21,315 INFO L87 Difference]: Start difference. First operand 621 states and 698 transitions. Second operand has 21 states, 18 states have (on average 6.555555555555555) internal successors, (118), 15 states have internal predecessors, (118), 6 states have call successors, (35), 7 states have call predecessors, (35), 11 states have return successors, (30), 9 states have call predecessors, (30), 6 states have call successors, (30) [2023-11-21 20:57:22,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 20:57:22,076 INFO L93 Difference]: Finished difference Result 1169 states and 1331 transitions. [2023-11-21 20:57:22,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-21 20:57:22,077 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 18 states have (on average 6.555555555555555) internal successors, (118), 15 states have internal predecessors, (118), 6 states have call successors, (35), 7 states have call predecessors, (35), 11 states have return successors, (30), 9 states have call predecessors, (30), 6 states have call successors, (30) Word has length 121 [2023-11-21 20:57:22,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 20:57:22,081 INFO L225 Difference]: With dead ends: 1169 [2023-11-21 20:57:22,082 INFO L226 Difference]: Without dead ends: 627 [2023-11-21 20:57:22,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 273 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=248, Invalid=1158, Unknown=0, NotChecked=0, Total=1406 [2023-11-21 20:57:22,085 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 257 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 676 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-21 20:57:22,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 353 Invalid, 830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 676 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-21 20:57:22,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2023-11-21 20:57:22,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 621. [2023-11-21 20:57:22,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 621 states, 409 states have (on average 1.117359413202934) internal successors, (457), 447 states have internal predecessors, (457), 106 states have call successors, (106), 98 states have call predecessors, (106), 105 states have return successors, (129), 102 states have call predecessors, (129), 106 states have call successors, (129) [2023-11-21 20:57:22,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 692 transitions. [2023-11-21 20:57:22,160 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 692 transitions. Word has length 121 [2023-11-21 20:57:22,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 20:57:22,160 INFO L495 AbstractCegarLoop]: Abstraction has 621 states and 692 transitions. [2023-11-21 20:57:22,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 18 states have (on average 6.555555555555555) internal successors, (118), 15 states have internal predecessors, (118), 6 states have call successors, (35), 7 states have call predecessors, (35), 11 states have return successors, (30), 9 states have call predecessors, (30), 6 states have call successors, (30) [2023-11-21 20:57:22,161 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 692 transitions. [2023-11-21 20:57:22,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-11-21 20:57:22,163 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:57:22,163 INFO L195 NwaCegarLoop]: trace histogram [7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-21 20:57:22,189 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe501b5-9c4e-4f8c-9206-0351e0531d61/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-21 20:57:22,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe501b5-9c4e-4f8c-9206-0351e0531d61/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-21 20:57:22,384 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 20:57:22,384 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:57:22,385 INFO L85 PathProgramCache]: Analyzing trace with hash 112038039, now seen corresponding path program 1 times [2023-11-21 20:57:22,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:57:22,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553830972] [2023-11-21 20:57:22,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:57:22,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:57:22,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:23,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 20:57:23,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:23,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-21 20:57:23,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:23,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:57:23,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:23,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-21 20:57:23,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:23,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-21 20:57:23,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:23,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:57:23,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:23,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-21 20:57:23,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:23,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-21 20:57:23,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:23,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-21 20:57:23,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:23,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-21 20:57:23,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:23,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:57:23,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:23,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-21 20:57:23,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:23,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-21 20:57:23,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:23,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-21 20:57:23,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:23,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-21 20:57:23,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:23,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-21 20:57:23,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:23,757 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 39 proven. 73 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2023-11-21 20:57:23,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:57:23,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553830972] [2023-11-21 20:57:23,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553830972] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 20:57:23,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1201193157] [2023-11-21 20:57:23,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:57:23,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 20:57:23,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe501b5-9c4e-4f8c-9206-0351e0531d61/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:57:23,759 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe501b5-9c4e-4f8c-9206-0351e0531d61/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 20:57:23,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe501b5-9c4e-4f8c-9206-0351e0531d61/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-21 20:57:23,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:23,908 INFO L262 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-21 20:57:23,917 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 20:57:24,466 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 91 proven. 37 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-11-21 20:57:24,466 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 20:57:25,305 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 88 proven. 24 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2023-11-21 20:57:25,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1201193157] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 20:57:25,305 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 20:57:25,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 14, 17] total 47 [2023-11-21 20:57:25,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801831798] [2023-11-21 20:57:25,306 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 20:57:25,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2023-11-21 20:57:25,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:57:25,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2023-11-21 20:57:25,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=323, Invalid=1839, Unknown=0, NotChecked=0, Total=2162 [2023-11-21 20:57:25,310 INFO L87 Difference]: Start difference. First operand 621 states and 692 transitions. Second operand has 47 states, 44 states have (on average 4.159090909090909) internal successors, (183), 43 states have internal predecessors, (183), 23 states have call successors, (39), 11 states have call predecessors, (39), 17 states have return successors, (37), 23 states have call predecessors, (37), 23 states have call successors, (37) [2023-11-21 20:57:27,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 20:57:27,714 INFO L93 Difference]: Finished difference Result 1091 states and 1225 transitions. [2023-11-21 20:57:27,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-11-21 20:57:27,715 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 44 states have (on average 4.159090909090909) internal successors, (183), 43 states have internal predecessors, (183), 23 states have call successors, (39), 11 states have call predecessors, (39), 17 states have return successors, (37), 23 states have call predecessors, (37), 23 states have call successors, (37) Word has length 122 [2023-11-21 20:57:27,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 20:57:27,716 INFO L225 Difference]: With dead ends: 1091 [2023-11-21 20:57:27,716 INFO L226 Difference]: Without dead ends: 0 [2023-11-21 20:57:27,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 273 SyntacticMatches, 5 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2106 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1422, Invalid=5888, Unknown=0, NotChecked=0, Total=7310 [2023-11-21 20:57:27,721 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 1156 mSDsluCounter, 891 mSDsCounter, 0 mSdLazyCounter, 2073 mSolverCounterSat, 956 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1157 SdHoareTripleChecker+Valid, 1005 SdHoareTripleChecker+Invalid, 3029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 956 IncrementalHoareTripleChecker+Valid, 2073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-21 20:57:27,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1157 Valid, 1005 Invalid, 3029 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [956 Valid, 2073 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-21 20:57:27,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-21 20:57:27,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-21 20:57:27,723 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) [2023-11-21 20:57:27,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-21 20:57:27,723 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 122 [2023-11-21 20:57:27,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 20:57:27,724 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-21 20:57:27,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 44 states have (on average 4.159090909090909) internal successors, (183), 43 states have internal predecessors, (183), 23 states have call successors, (39), 11 states have call predecessors, (39), 17 states have return successors, (37), 23 states have call predecessors, (37), 23 states have call successors, (37) [2023-11-21 20:57:27,724 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-21 20:57:27,724 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-21 20:57:27,727 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-21 20:57:27,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe501b5-9c4e-4f8c-9206-0351e0531d61/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-21 20:57:27,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe501b5-9c4e-4f8c-9206-0351e0531d61/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-21 20:57:27,944 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-21 20:57:31,411 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 713 719) no Hoare annotation was computed. [2023-11-21 20:57:31,412 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 713 719) the Hoare annotation is: true [2023-11-21 20:57:31,412 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 612 623) the Hoare annotation is: true [2023-11-21 20:57:31,412 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 612 623) no Hoare annotation was computed. [2023-11-21 20:57:31,413 INFO L895 garLoopResultBuilder]: At program point L766(line 766) the Hoare annotation is: (let ((.cse5 (< |old(~switchedOnBeforeTS~0)| 1)) (.cse2 (not (= |old(~waterLevel~0)| 0))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (not (= |old(~waterLevel~0)| 1))) (.cse1 (= ~pumpRunning~0 0)) (.cse6 (not (= |old(~pumpRunning~0)| 1))) (.cse7 (not (= |old(~waterLevel~0)| 2))) (.cse3 (= 0 ~systemActive~0))) (and (or .cse0 (and .cse1 (= ~waterLevel~0 0)) .cse2 .cse3) (or .cse4 .cse5 .cse6 .cse3) (or .cse5 .cse6 .cse2 .cse3) (or .cse0 (and .cse1 (= 2 ~waterLevel~0)) .cse7 .cse3) (or .cse0 .cse4 (and .cse1 (= ~waterLevel~0 1)) .cse3) (or .cse6 .cse7 .cse3))) [2023-11-21 20:57:31,413 INFO L899 garLoopResultBuilder]: For program point L766-1(lines 747 771) no Hoare annotation was computed. [2023-11-21 20:57:31,413 INFO L899 garLoopResultBuilder]: For program point L700-1(lines 700 706) no Hoare annotation was computed. [2023-11-21 20:57:31,414 INFO L895 garLoopResultBuilder]: At program point L181(line 181) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse7 (= ~waterLevel~0 1)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (not (= |old(~waterLevel~0)| 1))) (.cse2 (= 2 ~waterLevel~0)) (.cse6 (< |old(~switchedOnBeforeTS~0)| 1)) (.cse3 (= ~switchedOnBeforeTS~0 |old(~switchedOnBeforeTS~0)|)) (.cse11 (= ~waterLevel~0 0)) (.cse8 (= ~pumpRunning~0 1)) (.cse9 (not (= |old(~pumpRunning~0)| 1))) (.cse10 (not (= |old(~waterLevel~0)| 0))) (.cse4 (= 0 ~systemActive~0))) (and (or .cse0 (< |old(~waterLevel~0)| 2) (and .cse1 .cse2 .cse3) .cse4 (< 2 |old(~waterLevel~0)|)) (or .cse5 .cse6 (and .cse3 .cse7 .cse8) .cse9 .cse4) (or .cse0 .cse10 .cse4 (and .cse1 .cse3 .cse11)) (or (and .cse1 .cse3 .cse7) .cse0 .cse5 .cse4) (or .cse9 (not (= |old(~waterLevel~0)| 2)) .cse4 (and .cse2 .cse3 .cse8)) (or .cse6 (and .cse3 .cse11 .cse8) .cse9 .cse10 .cse4))) [2023-11-21 20:57:31,414 INFO L899 garLoopResultBuilder]: For program point L181-1(line 181) no Hoare annotation was computed. [2023-11-21 20:57:31,414 INFO L899 garLoopResultBuilder]: For program point L693-2(lines 689 711) no Hoare annotation was computed. [2023-11-21 20:57:31,414 INFO L899 garLoopResultBuilder]: For program point L755(lines 755 763) no Hoare annotation was computed. [2023-11-21 20:57:31,415 INFO L899 garLoopResultBuilder]: For program point L751(lines 751 768) no Hoare annotation was computed. [2023-11-21 20:57:31,415 INFO L899 garLoopResultBuilder]: For program point L198(lines 198 208) no Hoare annotation was computed. [2023-11-21 20:57:31,415 INFO L899 garLoopResultBuilder]: For program point L194(lines 194 211) no Hoare annotation was computed. [2023-11-21 20:57:31,415 INFO L899 garLoopResultBuilder]: For program point L194-1(lines 186 214) no Hoare annotation was computed. [2023-11-21 20:57:31,415 INFO L899 garLoopResultBuilder]: For program point L54(line 54) no Hoare annotation was computed. [2023-11-21 20:57:31,416 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 686 712) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse7 (= ~waterLevel~0 1)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (not (= |old(~waterLevel~0)| 1))) (.cse2 (= 2 ~waterLevel~0)) (.cse6 (< |old(~switchedOnBeforeTS~0)| 1)) (.cse3 (= ~switchedOnBeforeTS~0 |old(~switchedOnBeforeTS~0)|)) (.cse11 (= ~waterLevel~0 0)) (.cse8 (= ~pumpRunning~0 1)) (.cse9 (not (= |old(~pumpRunning~0)| 1))) (.cse10 (not (= |old(~waterLevel~0)| 0))) (.cse4 (= 0 ~systemActive~0))) (and (or .cse0 (< |old(~waterLevel~0)| 2) (and .cse1 .cse2 .cse3) .cse4 (< 2 |old(~waterLevel~0)|)) (or .cse5 .cse6 (and .cse3 .cse7 .cse8) .cse9 .cse4) (or .cse0 .cse10 .cse4 (and .cse1 .cse3 .cse11)) (or (and .cse1 .cse3 .cse7) .cse0 .cse5 .cse4) (or .cse9 (not (= |old(~waterLevel~0)| 2)) .cse4 (and .cse2 .cse3 .cse8)) (or .cse6 (and .cse3 .cse11 .cse8) .cse9 .cse10 .cse4))) [2023-11-21 20:57:31,416 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 205) no Hoare annotation was computed. [2023-11-21 20:57:31,416 INFO L895 garLoopResultBuilder]: At program point L761(line 761) the Hoare annotation is: (let ((.cse7 (<= 1 ~switchedOnBeforeTS~0)) (.cse8 (= ~pumpRunning~0 1))) (let ((.cse4 (< |old(~switchedOnBeforeTS~0)| 1)) (.cse5 (and .cse7 (= ~waterLevel~0 0) .cse8)) (.cse1 (not (= |old(~waterLevel~0)| 0))) (.cse6 (not (= |old(~pumpRunning~0)| 1))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= |old(~waterLevel~0)| 1))) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse5 .cse6 .cse2) (or .cse0 (< |old(~waterLevel~0)| 2) .cse2 (< 2 |old(~waterLevel~0)|)) (or .cse4 .cse5 .cse6 .cse1 .cse2) (or .cse6 (and (= ~waterLevel~0 1) .cse7 .cse8) (not (= |old(~waterLevel~0)| 2)) .cse2) (or .cse0 .cse3 .cse2)))) [2023-11-21 20:57:31,416 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 686 712) no Hoare annotation was computed. [2023-11-21 20:57:31,416 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2023-11-21 20:57:31,417 INFO L895 garLoopResultBuilder]: At program point L196(line 196) the Hoare annotation is: (let ((.cse10 (= ~pumpRunning~0 0)) (.cse12 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~1#1| 0)) (.cse8 (<= 1 ~switchedOnBeforeTS~0)) (.cse13 (= ~waterLevel~0 0)) (.cse9 (= ~pumpRunning~0 1))) (let ((.cse11 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= |old(~waterLevel~0)| 1))) (.cse6 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~1#1| 1)) (.cse7 (= ~waterLevel~0 1)) (.cse1 (< |old(~switchedOnBeforeTS~0)| 1)) (.cse2 (and .cse12 .cse8 .cse13 .cse9)) (.cse3 (not (= |old(~pumpRunning~0)| 1))) (.cse14 (not (= |old(~waterLevel~0)| 0))) (.cse4 (= 0 ~systemActive~0)) (.cse5 (and .cse10 .cse12 .cse8 .cse13))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or (and .cse6 .cse7 .cse8 .cse9) (and .cse10 .cse6 .cse7 .cse8) .cse3 (not (= |old(~waterLevel~0)| 2)) .cse4) (or .cse11 (and .cse10 .cse12 .cse13) .cse14 .cse4) (or .cse11 (< |old(~waterLevel~0)| 2) .cse4 (< 2 |old(~waterLevel~0)|)) (or .cse11 .cse0 .cse4 (and .cse10 .cse6 .cse7)) (or .cse1 .cse2 .cse3 .cse14 .cse4 .cse5)))) [2023-11-21 20:57:31,417 INFO L899 garLoopResultBuilder]: For program point L196-1(line 196) no Hoare annotation was computed. [2023-11-21 20:57:31,417 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 61 90) no Hoare annotation was computed. [2023-11-21 20:57:31,417 INFO L899 garLoopResultBuilder]: For program point L86(lines 61 90) no Hoare annotation was computed. [2023-11-21 20:57:31,418 INFO L899 garLoopResultBuilder]: For program point L82(line 82) no Hoare annotation was computed. [2023-11-21 20:57:31,418 INFO L899 garLoopResultBuilder]: For program point L75(lines 75 79) no Hoare annotation was computed. [2023-11-21 20:57:31,418 INFO L902 garLoopResultBuilder]: At program point L75-1(lines 75 79) the Hoare annotation is: true [2023-11-21 20:57:31,418 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 61 90) the Hoare annotation is: true [2023-11-21 20:57:31,418 INFO L902 garLoopResultBuilder]: At program point L71-2(lines 71 85) the Hoare annotation is: true [2023-11-21 20:57:31,418 INFO L902 garLoopResultBuilder]: At program point L67(line 67) the Hoare annotation is: true [2023-11-21 20:57:31,418 INFO L899 garLoopResultBuilder]: For program point L67-1(line 67) no Hoare annotation was computed. [2023-11-21 20:57:31,419 INFO L899 garLoopResultBuilder]: For program point L927(lines 927 933) no Hoare annotation was computed. [2023-11-21 20:57:31,419 INFO L899 garLoopResultBuilder]: For program point L927-1(lines 927 933) no Hoare annotation was computed. [2023-11-21 20:57:31,419 INFO L899 garLoopResultBuilder]: For program point L151(lines 151 158) no Hoare annotation was computed. [2023-11-21 20:57:31,419 INFO L899 garLoopResultBuilder]: For program point L151-2(lines 151 158) no Hoare annotation was computed. [2023-11-21 20:57:31,419 INFO L895 garLoopResultBuilder]: At program point L965(lines 916 966) the Hoare annotation is: false [2023-11-21 20:57:31,419 INFO L899 garLoopResultBuilder]: For program point L937(lines 937 943) no Hoare annotation was computed. [2023-11-21 20:57:31,419 INFO L899 garLoopResultBuilder]: For program point L937-1(lines 937 943) no Hoare annotation was computed. [2023-11-21 20:57:31,420 INFO L895 garLoopResultBuilder]: At program point L962(lines 917 964) the Hoare annotation is: (let ((.cse0 (= 2 ~waterLevel~0)) (.cse8 (= ~waterLevel~0 1)) (.cse6 (<= 1 ~switchedOnBeforeTS~0)) (.cse4 (= ~pumpRunning~0 1)) (.cse5 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse7 (= ~waterLevel~0 0)) (.cse3 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse0 .cse1 .cse2 .cse3) (and .cse1 .cse2 .cse6 .cse7 .cse3 .cse4) (and .cse5 .cse1 .cse2 .cse8 .cse3) (and .cse1 .cse2 .cse8 .cse6 .cse3 .cse4) (and .cse5 .cse1 .cse2 .cse7 .cse3))) [2023-11-21 20:57:31,420 INFO L895 garLoopResultBuilder]: At program point L929(line 929) the Hoare annotation is: (let ((.cse0 (= 2 ~waterLevel~0)) (.cse8 (= ~waterLevel~0 1)) (.cse6 (<= 1 ~switchedOnBeforeTS~0)) (.cse4 (= ~pumpRunning~0 1)) (.cse5 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse7 (= ~waterLevel~0 0)) (.cse3 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse0 .cse1 .cse2 .cse3) (and .cse1 .cse2 .cse6 .cse7 .cse3 .cse4) (and .cse5 .cse1 .cse2 .cse8 .cse3) (and .cse1 .cse2 .cse8 .cse6 .cse3 .cse4) (and .cse5 .cse1 .cse2 .cse7 .cse3))) [2023-11-21 20:57:31,420 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-21 20:57:31,420 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-21 20:57:31,421 INFO L895 garLoopResultBuilder]: At program point L955-2(lines 947 960) the Hoare annotation is: (let ((.cse0 (= 2 ~waterLevel~0)) (.cse8 (= ~waterLevel~0 1)) (.cse6 (<= 1 ~switchedOnBeforeTS~0)) (.cse4 (= ~pumpRunning~0 1)) (.cse5 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse7 (= ~waterLevel~0 0)) (.cse3 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse0 .cse1 .cse2 .cse3) (and .cse1 .cse2 .cse6 .cse7 .cse3 .cse4) (and .cse5 .cse1 .cse2 .cse8 .cse3) (and .cse1 .cse2 .cse8 .cse6 .cse3 .cse4) (and .cse5 .cse1 .cse2 .cse7 .cse3))) [2023-11-21 20:57:31,421 INFO L899 garLoopResultBuilder]: For program point L918(lines 917 964) no Hoare annotation was computed. [2023-11-21 20:57:31,421 INFO L895 garLoopResultBuilder]: At program point L939(line 939) the Hoare annotation is: (let ((.cse0 (= 2 ~waterLevel~0)) (.cse8 (= ~waterLevel~0 1)) (.cse6 (<= 1 ~switchedOnBeforeTS~0)) (.cse4 (= ~pumpRunning~0 1)) (.cse5 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse7 (= ~waterLevel~0 0)) (.cse3 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse0 .cse1 .cse2 .cse3) (and .cse1 .cse2 .cse6 .cse7 .cse3 .cse4) (and .cse5 .cse1 .cse2 .cse8 .cse3) (and .cse1 .cse2 .cse8 .cse6 .cse3 .cse4) (and .cse5 .cse1 .cse2 .cse7 .cse3))) [2023-11-21 20:57:31,421 INFO L899 garLoopResultBuilder]: For program point L968(lines 907 972) no Hoare annotation was computed. [2023-11-21 20:57:31,421 INFO L895 garLoopResultBuilder]: At program point L735(line 735) the Hoare annotation is: (let ((.cse4 (= ~pumpRunning~0 0))) (let ((.cse2 (not (= ~waterLevel~0 0))) (.cse6 (< ~switchedOnBeforeTS~0 1)) (.cse7 (not (= |old(~pumpRunning~0)| 1))) (.cse5 (not (= ~waterLevel~0 1))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (and .cse4 (= |processEnvironment__wrappee__highWaterSensor_~tmp~5#1| 0))) (.cse3 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse4 (not (= 2 ~waterLevel~0)) .cse3) (or .cse5 .cse6 .cse7 .cse3) (or .cse2 .cse6 .cse7 .cse3) (or .cse5 .cse0 .cse1 .cse3)))) [2023-11-21 20:57:31,422 INFO L899 garLoopResultBuilder]: For program point L729(lines 729 737) no Hoare annotation was computed. [2023-11-21 20:57:31,422 INFO L899 garLoopResultBuilder]: For program point L725(lines 725 742) no Hoare annotation was computed. [2023-11-21 20:57:31,422 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 721 745) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse3 (not (= ~waterLevel~0 0))) (.cse4 (not (= ~waterLevel~0 1))) (.cse5 (< ~switchedOnBeforeTS~0 1)) (.cse6 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (= 0 ~systemActive~0)) (.cse7 (= ~pumpRunning~0 1))) (and (or .cse0 .cse1 (not (= 2 ~waterLevel~0)) .cse2) (or .cse0 .cse1 .cse3 .cse2) (or .cse4 .cse0 .cse1 .cse2) (or .cse3 .cse5 .cse6 .cse2 .cse7) (or .cse4 .cse5 .cse6 .cse2 .cse7))) [2023-11-21 20:57:31,422 INFO L895 garLoopResultBuilder]: At program point L740(line 740) the Hoare annotation is: (let ((.cse1 (< ~switchedOnBeforeTS~0 1)) (.cse2 (not (= |old(~pumpRunning~0)| 1))) (.cse4 (= ~pumpRunning~0 1)) (.cse5 (not (= ~waterLevel~0 1))) (.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= ~waterLevel~0 0))) (.cse3 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse1 .cse2 .cse3 .cse4) (or .cse6 (not (= 2 ~waterLevel~0)) .cse3) (or .cse5 .cse6 .cse3) (or .cse6 .cse0 .cse3))) [2023-11-21 20:57:31,422 INFO L899 garLoopResultBuilder]: For program point L740-1(lines 721 745) no Hoare annotation was computed. [2023-11-21 20:57:31,422 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 721 745) no Hoare annotation was computed. [2023-11-21 20:57:31,423 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 600 611) no Hoare annotation was computed. [2023-11-21 20:57:31,423 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 600 611) the Hoare annotation is: (let ((.cse9 (not (= |old(~waterLevel~0)| 1))) (.cse3 (< ~switchedOnBeforeTS~0 1)) (.cse4 (not (= ~pumpRunning~0 1))) (.cse2 (not (= |old(~waterLevel~0)| 2))) (.cse6 (= 0 ~systemActive~0))) (let ((.cse0 (= 2 ~waterLevel~0)) (.cse1 (and (or .cse9 .cse3 .cse4 .cse6) (or .cse4 .cse2 .cse6))) (.cse10 (= ~waterLevel~0 1)) (.cse8 (not (= ~pumpRunning~0 0))) (.cse5 (not (= |old(~waterLevel~0)| 0))) (.cse7 (= ~waterLevel~0 0))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse5 .cse6 .cse7) (or .cse8 .cse0 .cse2 .cse6) (or .cse8 .cse9 .cse6 .cse10) (or .cse9 .cse1 .cse10) (or .cse8 .cse5 .cse6 .cse7)))) [2023-11-21 20:57:31,423 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 799 807) no Hoare annotation was computed. [2023-11-21 20:57:31,423 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 799 807) the Hoare annotation is: true [2023-11-21 20:57:31,426 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 20:57:31,428 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 20:57:31,442 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 08:57:31 BoogieIcfgContainer [2023-11-21 20:57:31,442 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 20:57:31,443 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 20:57:31,443 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 20:57:31,443 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 20:57:31,444 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 08:57:01" (3/4) ... [2023-11-21 20:57:31,446 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-21 20:57:31,449 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2023-11-21 20:57:31,450 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2023-11-21 20:57:31,450 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2023-11-21 20:57:31,450 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2023-11-21 20:57:31,450 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2023-11-21 20:57:31,451 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2023-11-21 20:57:31,451 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2023-11-21 20:57:31,469 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 47 nodes and edges [2023-11-21 20:57:31,470 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-21 20:57:31,471 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-21 20:57:31,471 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-21 20:57:31,472 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-21 20:57:31,629 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe501b5-9c4e-4f8c-9206-0351e0531d61/bin/uautomizer-verify-bycVGegfSx/witness.graphml [2023-11-21 20:57:31,630 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe501b5-9c4e-4f8c-9206-0351e0531d61/bin/uautomizer-verify-bycVGegfSx/witness.yml [2023-11-21 20:57:31,630 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 20:57:31,631 INFO L158 Benchmark]: Toolchain (without parser) took 31769.89ms. Allocated memory was 159.4MB in the beginning and 419.4MB in the end (delta: 260.0MB). Free memory was 117.1MB in the beginning and 189.8MB in the end (delta: -72.8MB). Peak memory consumption was 187.7MB. Max. memory is 16.1GB. [2023-11-21 20:57:31,632 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 111.1MB. Free memory is still 61.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 20:57:31,632 INFO L158 Benchmark]: CACSL2BoogieTranslator took 518.71ms. Allocated memory is still 159.4MB. Free memory was 117.1MB in the beginning and 97.7MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-21 20:57:31,632 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.56ms. Allocated memory is still 159.4MB. Free memory was 97.7MB in the beginning and 95.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 20:57:31,633 INFO L158 Benchmark]: Boogie Preprocessor took 57.22ms. Allocated memory is still 159.4MB. Free memory was 95.3MB in the beginning and 93.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 20:57:31,634 INFO L158 Benchmark]: RCFGBuilder took 694.85ms. Allocated memory is still 159.4MB. Free memory was 93.3MB in the beginning and 116.2MB in the end (delta: -22.9MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. [2023-11-21 20:57:31,634 INFO L158 Benchmark]: TraceAbstraction took 30247.49ms. Allocated memory was 159.4MB in the beginning and 419.4MB in the end (delta: 260.0MB). Free memory was 115.5MB in the beginning and 197.2MB in the end (delta: -81.7MB). Peak memory consumption was 238.8MB. Max. memory is 16.1GB. [2023-11-21 20:57:31,635 INFO L158 Benchmark]: Witness Printer took 187.72ms. Allocated memory is still 419.4MB. Free memory was 197.2MB in the beginning and 189.8MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-21 20:57:31,637 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 111.1MB. Free memory is still 61.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 518.71ms. Allocated memory is still 159.4MB. Free memory was 117.1MB in the beginning and 97.7MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.56ms. Allocated memory is still 159.4MB. Free memory was 97.7MB in the beginning and 95.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.22ms. Allocated memory is still 159.4MB. Free memory was 95.3MB in the beginning and 93.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 694.85ms. Allocated memory is still 159.4MB. Free memory was 93.3MB in the beginning and 116.2MB in the end (delta: -22.9MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. * TraceAbstraction took 30247.49ms. Allocated memory was 159.4MB in the beginning and 419.4MB in the end (delta: 260.0MB). Free memory was 115.5MB in the beginning and 197.2MB in the end (delta: -81.7MB). Peak memory consumption was 238.8MB. Max. memory is 16.1GB. * Witness Printer took 187.72ms. Allocated memory is still 419.4MB. Free memory was 197.2MB in the beginning and 189.8MB 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,"wsllib_check.i","") [49] - GenericResultAtLocation [Line: 58]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [58] - GenericResultAtLocation [Line: 164]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [164] - GenericResultAtLocation [Line: 215]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [215] - GenericResultAtLocation [Line: 581]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [581] - GenericResultAtLocation [Line: 679]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [679] - GenericResultAtLocation [Line: 871]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [871] - GenericResultAtLocation [Line: 906]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [906] * 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: 54]: 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, 58 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 30.2s, OverallIterations: 11, TraceHistogramMax: 7, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 12.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4268 SdHoareTripleChecker+Valid, 6.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4233 mSDsluCounter, 4905 SdHoareTripleChecker+Invalid, 5.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4153 mSDsCounter, 2878 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8437 IncrementalHoareTripleChecker+Invalid, 11315 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2878 mSolverCounterUnsat, 752 mSDtfsCounter, 8437 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1698 GetRequests, 1289 SyntacticMatches, 14 SemanticMatches, 395 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6716 ImplicationChecksByTransitivity, 6.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=661occurred in iteration=8, InterpolantAutomatonStates: 272, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 11 MinimizatonAttempts, 281 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 21 LocationsWithAnnotation, 1114 PreInvPairs, 1179 NumberOfFragments, 1491 HoareAnnotationTreeSize, 1114 FomulaSimplifications, 13598 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 21 FomulaSimplificationsInter, 7650 FormulaSimplificationTreeSizeReductionInter, 3.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 11.0s InterpolantComputationTime, 1230 NumberOfCodeBlocks, 1230 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1755 ConstructedInterpolants, 0 QuantifiedInterpolants, 7016 SizeOfPredicates, 40 NumberOfNonLiveVariables, 2220 ConjunctsInSsa, 122 ConjunctsInUnsatCore, 23 InterpolantComputations, 5 PerfectInterpolantSequences, 1390/1720 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: 917]: Loop Invariant Derived loop invariant: ((((((((((2 == waterLevel) && (tmp == 1)) && (splverifierCounter == 0)) && !((0 == systemActive))) && (pumpRunning == 1)) || (((((pumpRunning == 0) && (2 == waterLevel)) && (tmp == 1)) && (splverifierCounter == 0)) && !((0 == systemActive)))) || ((((((tmp == 1) && (splverifierCounter == 0)) && (1 <= switchedOnBeforeTS)) && (waterLevel == 0)) && !((0 == systemActive))) && (pumpRunning == 1))) || (((((pumpRunning == 0) && (tmp == 1)) && (splverifierCounter == 0)) && (waterLevel == 1)) && !((0 == systemActive)))) || ((((((tmp == 1) && (splverifierCounter == 0)) && (waterLevel == 1)) && (1 <= switchedOnBeforeTS)) && !((0 == systemActive))) && (pumpRunning == 1))) || (((((pumpRunning == 0) && (tmp == 1)) && (splverifierCounter == 0)) && (waterLevel == 0)) && !((0 == systemActive)))) - InvariantResult [Line: 71]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 916]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2023-11-21 20:57:31,674 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe501b5-9c4e-4f8c-9206-0351e0531d61/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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