./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product57.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1938914-8898-4412-b4ef-8898aaf7dedd/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1938914-8898-4412-b4ef-8898aaf7dedd/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1938914-8898-4412-b4ef-8898aaf7dedd/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1938914-8898-4412-b4ef-8898aaf7dedd/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product57.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1938914-8898-4412-b4ef-8898aaf7dedd/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1938914-8898-4412-b4ef-8898aaf7dedd/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash aba011a2dee79947f4cca7910fc4583b21e1f3cb9acd1affa050aa7677352666 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 06:04:04,675 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 06:04:04,754 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1938914-8898-4412-b4ef-8898aaf7dedd/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 06:04:04,759 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 06:04:04,759 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 06:04:04,783 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 06:04:04,783 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 06:04:04,784 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 06:04:04,785 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 06:04:04,785 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 06:04:04,786 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 06:04:04,786 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 06:04:04,787 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 06:04:04,787 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 06:04:04,788 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 06:04:04,788 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 06:04:04,789 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 06:04:04,789 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 06:04:04,790 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 06:04:04,790 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 06:04:04,791 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 06:04:04,791 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 06:04:04,792 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 06:04:04,792 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 06:04:04,793 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 06:04:04,793 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 06:04:04,793 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 06:04:04,794 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 06:04:04,794 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 06:04:04,795 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 06:04:04,795 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 06:04:04,796 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:04:04,796 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 06:04:04,797 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 06:04:04,797 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 06:04:04,797 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 06:04:04,798 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 06:04:04,798 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 06:04:04,798 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 06:04:04,798 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 06:04:04,798 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 06:04:04,799 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 06:04:04,799 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_d1938914-8898-4412-b4ef-8898aaf7dedd/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1938914-8898-4412-b4ef-8898aaf7dedd/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aba011a2dee79947f4cca7910fc4583b21e1f3cb9acd1affa050aa7677352666 [2023-11-29 06:04:05,041 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 06:04:05,062 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 06:04:05,065 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 06:04:05,066 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 06:04:05,066 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 06:04:05,068 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1938914-8898-4412-b4ef-8898aaf7dedd/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/product-lines/minepump_spec5_product57.cil.c [2023-11-29 06:04:07,793 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 06:04:07,998 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 06:04:07,999 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1938914-8898-4412-b4ef-8898aaf7dedd/sv-benchmarks/c/product-lines/minepump_spec5_product57.cil.c [2023-11-29 06:04:08,015 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1938914-8898-4412-b4ef-8898aaf7dedd/bin/uautomizer-verify-BQ2R08f2Ya/data/99f39f11c/d2f066dc02784903b8640b92b3555e21/FLAG23034c00a [2023-11-29 06:04:08,033 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1938914-8898-4412-b4ef-8898aaf7dedd/bin/uautomizer-verify-BQ2R08f2Ya/data/99f39f11c/d2f066dc02784903b8640b92b3555e21 [2023-11-29 06:04:08,035 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 06:04:08,036 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 06:04:08,038 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 06:04:08,038 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 06:04:08,042 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 06:04:08,043 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:04:08" (1/1) ... [2023-11-29 06:04:08,044 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@439c0488 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:04:08, skipping insertion in model container [2023-11-29 06:04:08,044 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:04:08" (1/1) ... [2023-11-29 06:04:08,090 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 06:04:08,232 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_d1938914-8898-4412-b4ef-8898aaf7dedd/sv-benchmarks/c/product-lines/minepump_spec5_product57.cil.c[1605,1618] [2023-11-29 06:04:08,341 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:04:08,352 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 06:04:08,362 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] [2023-11-29 06:04:08,364 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [58] [2023-11-29 06:04:08,364 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [96] [2023-11-29 06:04:08,364 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [199] [2023-11-29 06:04:08,364 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [308] [2023-11-29 06:04:08,365 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [674] [2023-11-29 06:04:08,365 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [724] [2023-11-29 06:04:08,365 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [789] [2023-11-29 06:04:08,369 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_d1938914-8898-4412-b4ef-8898aaf7dedd/sv-benchmarks/c/product-lines/minepump_spec5_product57.cil.c[1605,1618] [2023-11-29 06:04:08,422 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:04:08,442 INFO L206 MainTranslator]: Completed translation [2023-11-29 06:04:08,443 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:04:08 WrapperNode [2023-11-29 06:04:08,443 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 06:04:08,444 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 06:04:08,444 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 06:04:08,445 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 06:04:08,452 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:04:08" (1/1) ... [2023-11-29 06:04:08,466 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:04:08" (1/1) ... [2023-11-29 06:04:08,493 INFO L138 Inliner]: procedures = 58, calls = 103, calls flagged for inlining = 27, calls inlined = 24, statements flattened = 232 [2023-11-29 06:04:08,494 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 06:04:08,495 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 06:04:08,495 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 06:04:08,495 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 06:04:08,507 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:04:08" (1/1) ... [2023-11-29 06:04:08,507 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:04:08" (1/1) ... [2023-11-29 06:04:08,510 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:04:08" (1/1) ... [2023-11-29 06:04:08,524 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 06:04:08,524 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:04:08" (1/1) ... [2023-11-29 06:04:08,524 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:04:08" (1/1) ... [2023-11-29 06:04:08,528 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:04:08" (1/1) ... [2023-11-29 06:04:08,532 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:04:08" (1/1) ... [2023-11-29 06:04:08,534 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:04:08" (1/1) ... [2023-11-29 06:04:08,536 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:04:08" (1/1) ... [2023-11-29 06:04:08,538 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 06:04:08,538 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 06:04:08,539 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 06:04:08,539 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 06:04:08,539 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:04:08" (1/1) ... [2023-11-29 06:04:08,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:04:08,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1938914-8898-4412-b4ef-8898aaf7dedd/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:04:08,569 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1938914-8898-4412-b4ef-8898aaf7dedd/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 06:04:08,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1938914-8898-4412-b4ef-8898aaf7dedd/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 06:04:08,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 06:04:08,605 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-11-29 06:04:08,605 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-11-29 06:04:08,605 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-29 06:04:08,606 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-29 06:04:08,606 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-29 06:04:08,606 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-29 06:04:08,606 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-11-29 06:04:08,606 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-11-29 06:04:08,606 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-29 06:04:08,606 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-29 06:04:08,607 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-11-29 06:04:08,607 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-11-29 06:04:08,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 06:04:08,607 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-29 06:04:08,607 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-29 06:04:08,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 06:04:08,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 06:04:08,683 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 06:04:08,685 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 06:04:08,913 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 06:04:08,979 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 06:04:08,979 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-29 06:04:08,979 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:04:08 BoogieIcfgContainer [2023-11-29 06:04:08,979 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 06:04:08,982 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 06:04:08,983 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 06:04:08,986 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 06:04:08,986 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:04:08" (1/3) ... [2023-11-29 06:04:08,987 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65dcbae8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:04:08, skipping insertion in model container [2023-11-29 06:04:08,987 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:04:08" (2/3) ... [2023-11-29 06:04:08,988 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65dcbae8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:04:08, skipping insertion in model container [2023-11-29 06:04:08,988 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:04:08" (3/3) ... [2023-11-29 06:04:08,989 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product57.cil.c [2023-11-29 06:04:09,008 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 06:04:09,008 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 06:04:09,049 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 06:04:09,055 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;@68b844f0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 06:04:09,055 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 06:04:09,059 INFO L276 IsEmpty]: Start isEmpty. Operand has 73 states, 52 states have (on average 1.5384615384615385) internal successors, (80), 60 states have internal predecessors, (80), 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) [2023-11-29 06:04:09,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-29 06:04:09,069 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:04:09,070 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] [2023-11-29 06:04:09,070 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:04:09,076 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:04:09,076 INFO L85 PathProgramCache]: Analyzing trace with hash 835053812, now seen corresponding path program 1 times [2023-11-29 06:04:09,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:04:09,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154880184] [2023-11-29 06:04:09,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:04:09,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:04:09,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:04:09,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 06:04:09,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:04:09,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-29 06:04:09,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:04:09,256 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 06:04:09,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:04:09,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154880184] [2023-11-29 06:04:09,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154880184] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:04:09,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:04:09,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:04:09,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808151364] [2023-11-29 06:04:09,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:04:09,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 06:04:09,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:04:09,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 06:04:09,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 06:04:09,297 INFO L87 Difference]: Start difference. First operand has 73 states, 52 states have (on average 1.5384615384615385) internal successors, (80), 60 states have internal predecessors, (80), 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 7.5) internal successors, (15), 2 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) [2023-11-29 06:04:09,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:04:09,355 INFO L93 Difference]: Finished difference Result 144 states and 209 transitions. [2023-11-29 06:04:09,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 06:04:09,357 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 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 [2023-11-29 06:04:09,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:04:09,365 INFO L225 Difference]: With dead ends: 144 [2023-11-29 06:04:09,365 INFO L226 Difference]: Without dead ends: 68 [2023-11-29 06:04:09,369 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 [2023-11-29 06:04:09,372 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:04:09,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 83 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:04:09,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2023-11-29 06:04:09,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2023-11-29 06:04:09,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 49 states have (on average 1.4285714285714286) internal successors, (70), 56 states have internal predecessors, (70), 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) [2023-11-29 06:04:09,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 93 transitions. [2023-11-29 06:04:09,412 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 93 transitions. Word has length 22 [2023-11-29 06:04:09,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:04:09,413 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 93 transitions. [2023-11-29 06:04:09,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 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) [2023-11-29 06:04:09,413 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 93 transitions. [2023-11-29 06:04:09,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-29 06:04:09,416 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:04:09,416 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] [2023-11-29 06:04:09,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 06:04:09,417 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:04:09,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:04:09,418 INFO L85 PathProgramCache]: Analyzing trace with hash 158650053, now seen corresponding path program 1 times [2023-11-29 06:04:09,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:04:09,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116311691] [2023-11-29 06:04:09,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:04:09,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:04:09,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:04:09,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 06:04:09,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:04:09,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-29 06:04:09,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:04:09,585 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 06:04:09,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:04:09,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116311691] [2023-11-29 06:04:09,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116311691] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:04:09,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:04:09,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:04:09,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582771979] [2023-11-29 06:04:09,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:04:09,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:04:09,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:04:09,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:04:09,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:04:09,589 INFO L87 Difference]: Start difference. First operand 68 states and 93 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2023-11-29 06:04:09,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:04:09,629 INFO L93 Difference]: Finished difference Result 109 states and 149 transitions. [2023-11-29 06:04:09,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:04:09,629 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 23 [2023-11-29 06:04:09,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:04:09,631 INFO L225 Difference]: With dead ends: 109 [2023-11-29 06:04:09,631 INFO L226 Difference]: Without dead ends: 60 [2023-11-29 06:04:09,632 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 [2023-11-29 06:04:09,633 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 11 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:04:09,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 124 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:04:09,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2023-11-29 06:04:09,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2023-11-29 06:04:09,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 44 states have (on average 1.4545454545454546) internal successors, (64), 51 states have internal predecessors, (64), 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) [2023-11-29 06:04:09,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 82 transitions. [2023-11-29 06:04:09,644 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 82 transitions. Word has length 23 [2023-11-29 06:04:09,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:04:09,644 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 82 transitions. [2023-11-29 06:04:09,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2023-11-29 06:04:09,644 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 82 transitions. [2023-11-29 06:04:09,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-29 06:04:09,646 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:04:09,646 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] [2023-11-29 06:04:09,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 06:04:09,646 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:04:09,646 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:04:09,647 INFO L85 PathProgramCache]: Analyzing trace with hash 740625543, now seen corresponding path program 1 times [2023-11-29 06:04:09,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:04:09,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554041446] [2023-11-29 06:04:09,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:04:09,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:04:09,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:04:09,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-29 06:04:09,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:04:09,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-29 06:04:09,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:04:09,739 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 06:04:09,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:04:09,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554041446] [2023-11-29 06:04:09,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554041446] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:04:09,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:04:09,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:04:09,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424245057] [2023-11-29 06:04:09,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:04:09,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:04:09,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:04:09,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:04:09,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:04:09,742 INFO L87 Difference]: Start difference. First operand 60 states and 82 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 06:04:09,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:04:09,774 INFO L93 Difference]: Finished difference Result 118 states and 163 transitions. [2023-11-29 06:04:09,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:04:09,775 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 26 [2023-11-29 06:04:09,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:04:09,776 INFO L225 Difference]: With dead ends: 118 [2023-11-29 06:04:09,776 INFO L226 Difference]: Without dead ends: 60 [2023-11-29 06:04:09,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:04:09,779 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 67 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:04:09,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 67 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:04:09,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2023-11-29 06:04:09,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2023-11-29 06:04:09,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 44 states have (on average 1.4318181818181819) internal successors, (63), 51 states have internal predecessors, (63), 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) [2023-11-29 06:04:09,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 81 transitions. [2023-11-29 06:04:09,789 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 81 transitions. Word has length 26 [2023-11-29 06:04:09,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:04:09,790 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 81 transitions. [2023-11-29 06:04:09,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 06:04:09,791 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 81 transitions. [2023-11-29 06:04:09,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-29 06:04:09,792 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:04:09,792 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] [2023-11-29 06:04:09,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 06:04:09,792 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:04:09,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:04:09,793 INFO L85 PathProgramCache]: Analyzing trace with hash -2057962832, now seen corresponding path program 1 times [2023-11-29 06:04:09,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:04:09,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527467798] [2023-11-29 06:04:09,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:04:09,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:04:09,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:04:09,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-29 06:04:09,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:04:09,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-29 06:04:09,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:04:09,848 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 06:04:09,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:04:09,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527467798] [2023-11-29 06:04:09,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527467798] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:04:09,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:04:09,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:04:09,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077840983] [2023-11-29 06:04:09,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:04:09,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:04:09,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:04:09,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:04:09,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:04:09,851 INFO L87 Difference]: Start difference. First operand 60 states and 81 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 06:04:09,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:04:09,903 INFO L93 Difference]: Finished difference Result 161 states and 220 transitions. [2023-11-29 06:04:09,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:04:09,903 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 31 [2023-11-29 06:04:09,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:04:09,905 INFO L225 Difference]: With dead ends: 161 [2023-11-29 06:04:09,905 INFO L226 Difference]: Without dead ends: 103 [2023-11-29 06:04:09,907 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 [2023-11-29 06:04:09,908 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 64 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:04:09,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 126 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:04:09,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2023-11-29 06:04:09,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 101. [2023-11-29 06:04:09,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 74 states have (on average 1.3783783783783783) internal successors, (102), 82 states have internal predecessors, (102), 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) [2023-11-29 06:04:09,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 134 transitions. [2023-11-29 06:04:09,925 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 134 transitions. Word has length 31 [2023-11-29 06:04:09,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:04:09,926 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 134 transitions. [2023-11-29 06:04:09,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 06:04:09,926 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 134 transitions. [2023-11-29 06:04:09,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-29 06:04:09,927 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:04:09,928 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, 1, 1, 1, 1, 1] [2023-11-29 06:04:09,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 06:04:09,928 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:04:09,928 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:04:09,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1239394501, now seen corresponding path program 1 times [2023-11-29 06:04:09,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:04:09,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157574776] [2023-11-29 06:04:09,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:04:09,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:04:09,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:04:10,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-29 06:04:10,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:04:10,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-29 06:04:10,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:04:10,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 06:04:10,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:04:10,040 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 06:04:10,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:04:10,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157574776] [2023-11-29 06:04:10,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157574776] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:04:10,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:04:10,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:04:10,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708447186] [2023-11-29 06:04:10,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:04:10,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:04:10,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:04:10,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:04:10,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:04:10,044 INFO L87 Difference]: Start difference. First operand 101 states and 134 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 06:04:10,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:04:10,195 INFO L93 Difference]: Finished difference Result 226 states and 309 transitions. [2023-11-29 06:04:10,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:04:10,195 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 40 [2023-11-29 06:04:10,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:04:10,198 INFO L225 Difference]: With dead ends: 226 [2023-11-29 06:04:10,198 INFO L226 Difference]: Without dead ends: 127 [2023-11-29 06:04:10,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:04:10,201 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 51 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:04:10,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 183 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:04:10,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2023-11-29 06:04:10,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 123. [2023-11-29 06:04:10,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 91 states have (on average 1.3736263736263736) internal successors, (125), 99 states have internal predecessors, (125), 16 states have call successors, (16), 12 states have call predecessors, (16), 15 states have return successors, (23), 17 states have call predecessors, (23), 16 states have call successors, (23) [2023-11-29 06:04:10,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 164 transitions. [2023-11-29 06:04:10,219 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 164 transitions. Word has length 40 [2023-11-29 06:04:10,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:04:10,219 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 164 transitions. [2023-11-29 06:04:10,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 06:04:10,220 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 164 transitions. [2023-11-29 06:04:10,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-29 06:04:10,221 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:04:10,221 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, 1, 1, 1, 1, 1, 1] [2023-11-29 06:04:10,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 06:04:10,222 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:04:10,222 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:04:10,222 INFO L85 PathProgramCache]: Analyzing trace with hash -401332796, now seen corresponding path program 1 times [2023-11-29 06:04:10,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:04:10,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583183435] [2023-11-29 06:04:10,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:04:10,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:04:10,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:04:10,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-29 06:04:10,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:04:10,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-29 06:04:10,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:04:10,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 06:04:10,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:04:10,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-29 06:04:10,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:04:10,360 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 06:04:10,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:04:10,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583183435] [2023-11-29 06:04:10,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583183435] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:04:10,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:04:10,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 06:04:10,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107503821] [2023-11-29 06:04:10,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:04:10,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:04:10,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:04:10,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:04:10,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:04:10,363 INFO L87 Difference]: Start difference. First operand 123 states and 164 transitions. Second operand has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 06:04:10,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:04:10,671 INFO L93 Difference]: Finished difference Result 248 states and 330 transitions. [2023-11-29 06:04:10,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 06:04:10,671 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 41 [2023-11-29 06:04:10,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:04:10,673 INFO L225 Difference]: With dead ends: 248 [2023-11-29 06:04:10,674 INFO L226 Difference]: Without dead ends: 127 [2023-11-29 06:04:10,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2023-11-29 06:04:10,676 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 112 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:04:10,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 263 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:04:10,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2023-11-29 06:04:10,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 121. [2023-11-29 06:04:10,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 89 states have (on average 1.3370786516853932) internal successors, (119), 97 states have internal predecessors, (119), 16 states have call successors, (16), 12 states have call predecessors, (16), 15 states have return successors, (23), 17 states have call predecessors, (23), 16 states have call successors, (23) [2023-11-29 06:04:10,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 158 transitions. [2023-11-29 06:04:10,693 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 158 transitions. Word has length 41 [2023-11-29 06:04:10,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:04:10,693 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 158 transitions. [2023-11-29 06:04:10,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 06:04:10,694 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 158 transitions. [2023-11-29 06:04:10,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-29 06:04:10,695 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:04:10,695 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, 1, 1, 1, 1, 1] [2023-11-29 06:04:10,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 06:04:10,696 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:04:10,696 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:04:10,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1883877408, now seen corresponding path program 1 times [2023-11-29 06:04:10,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:04:10,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378202389] [2023-11-29 06:04:10,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:04:10,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:04:10,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:04:10,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-29 06:04:10,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:04:10,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-29 06:04:10,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:04:10,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 06:04:10,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:04:10,785 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 06:04:10,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:04:10,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378202389] [2023-11-29 06:04:10,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378202389] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:04:10,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:04:10,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:04:10,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351637940] [2023-11-29 06:04:10,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:04:10,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:04:10,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:04:10,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:04:10,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:04:10,787 INFO L87 Difference]: Start difference. First operand 121 states and 158 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 06:04:10,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:04:10,932 INFO L93 Difference]: Finished difference Result 249 states and 333 transitions. [2023-11-29 06:04:10,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:04:10,933 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 40 [2023-11-29 06:04:10,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:04:10,935 INFO L225 Difference]: With dead ends: 249 [2023-11-29 06:04:10,935 INFO L226 Difference]: Without dead ends: 130 [2023-11-29 06:04:10,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:04:10,937 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 57 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:04:10,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 181 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:04:10,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2023-11-29 06:04:10,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 123. [2023-11-29 06:04:10,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 91 states have (on average 1.3296703296703296) internal successors, (121), 99 states have internal predecessors, (121), 16 states have call successors, (16), 12 states have call predecessors, (16), 15 states have return successors, (23), 17 states have call predecessors, (23), 16 states have call successors, (23) [2023-11-29 06:04:10,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 160 transitions. [2023-11-29 06:04:10,953 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 160 transitions. Word has length 40 [2023-11-29 06:04:10,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:04:10,954 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 160 transitions. [2023-11-29 06:04:10,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 06:04:10,954 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 160 transitions. [2023-11-29 06:04:10,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-29 06:04:10,956 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:04:10,956 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, 1, 1, 1, 1, 1] [2023-11-29 06:04:10,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 06:04:10,956 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:04:10,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:04:10,957 INFO L85 PathProgramCache]: Analyzing trace with hash 722146146, now seen corresponding path program 1 times [2023-11-29 06:04:10,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:04:10,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992274008] [2023-11-29 06:04:10,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:04:10,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:04:10,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:04:11,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-29 06:04:11,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:04:11,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-29 06:04:11,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:04:11,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 06:04:11,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:04:11,045 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 06:04:11,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:04:11,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992274008] [2023-11-29 06:04:11,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992274008] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:04:11,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:04:11,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:04:11,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533495472] [2023-11-29 06:04:11,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:04:11,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:04:11,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:04:11,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:04:11,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:04:11,048 INFO L87 Difference]: Start difference. First operand 123 states and 160 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 06:04:11,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:04:11,288 INFO L93 Difference]: Finished difference Result 358 states and 484 transitions. [2023-11-29 06:04:11,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:04:11,289 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 40 [2023-11-29 06:04:11,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:04:11,291 INFO L225 Difference]: With dead ends: 358 [2023-11-29 06:04:11,291 INFO L226 Difference]: Without dead ends: 237 [2023-11-29 06:04:11,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:04:11,293 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 184 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:04:11,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 197 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:04:11,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2023-11-29 06:04:11,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 235. [2023-11-29 06:04:11,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 171 states have (on average 1.280701754385965) internal successors, (219), 183 states have internal predecessors, (219), 34 states have call successors, (34), 28 states have call predecessors, (34), 29 states have return successors, (53), 34 states have call predecessors, (53), 34 states have call successors, (53) [2023-11-29 06:04:11,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 306 transitions. [2023-11-29 06:04:11,326 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 306 transitions. Word has length 40 [2023-11-29 06:04:11,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:04:11,326 INFO L495 AbstractCegarLoop]: Abstraction has 235 states and 306 transitions. [2023-11-29 06:04:11,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 06:04:11,327 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 306 transitions. [2023-11-29 06:04:11,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-29 06:04:11,328 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:04:11,329 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:04:11,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 06:04:11,329 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:04:11,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:04:11,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1224615112, now seen corresponding path program 1 times [2023-11-29 06:04:11,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:04:11,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189522432] [2023-11-29 06:04:11,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:04:11,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:04:11,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:04:11,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:04:11,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:04:11,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-29 06:04:11,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:04:11,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-29 06:04:11,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:04:11,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-29 06:04:11,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:04:11,548 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 06:04:11,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:04:11,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189522432] [2023-11-29 06:04:11,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189522432] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:04:11,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:04:11,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 06:04:11,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478834082] [2023-11-29 06:04:11,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:04:11,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:04:11,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:04:11,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:04:11,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:04:11,551 INFO L87 Difference]: Start difference. First operand 235 states and 306 transitions. Second operand has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 7 states have internal predecessors, (34), 3 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 06:04:12,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:04:12,166 INFO L93 Difference]: Finished difference Result 626 states and 859 transitions. [2023-11-29 06:04:12,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-29 06:04:12,167 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 7 states have internal predecessors, (34), 3 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 44 [2023-11-29 06:04:12,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:04:12,171 INFO L225 Difference]: With dead ends: 626 [2023-11-29 06:04:12,171 INFO L226 Difference]: Without dead ends: 437 [2023-11-29 06:04:12,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=192, Invalid=564, Unknown=0, NotChecked=0, Total=756 [2023-11-29 06:04:12,174 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 476 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 167 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 481 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 167 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:04:12,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [481 Valid, 327 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [167 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 06:04:12,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2023-11-29 06:04:12,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 363. [2023-11-29 06:04:12,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 265 states have (on average 1.2679245283018867) internal successors, (336), 286 states have internal predecessors, (336), 51 states have call successors, (51), 39 states have call predecessors, (51), 46 states have return successors, (83), 52 states have call predecessors, (83), 51 states have call successors, (83) [2023-11-29 06:04:12,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 470 transitions. [2023-11-29 06:04:12,218 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 470 transitions. Word has length 44 [2023-11-29 06:04:12,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:04:12,219 INFO L495 AbstractCegarLoop]: Abstraction has 363 states and 470 transitions. [2023-11-29 06:04:12,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 7 states have internal predecessors, (34), 3 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 06:04:12,219 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 470 transitions. [2023-11-29 06:04:12,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-29 06:04:12,221 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:04:12,221 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:04:12,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 06:04:12,221 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:04:12,222 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:04:12,222 INFO L85 PathProgramCache]: Analyzing trace with hash -32394315, now seen corresponding path program 1 times [2023-11-29 06:04:12,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:04:12,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206962368] [2023-11-29 06:04:12,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:04:12,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:04:12,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:04:12,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:04:12,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:04:12,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 06:04:12,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:04:12,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:04:12,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:04:12,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 06:04:12,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:04:12,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-29 06:04:12,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:04:12,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-29 06:04:12,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:04:12,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 06:04:12,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:04:12,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-29 06:04:12,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:04:12,456 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 06:04:12,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:04:12,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206962368] [2023-11-29 06:04:12,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206962368] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:04:12,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1295491474] [2023-11-29 06:04:12,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:04:12,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:04:12,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1938914-8898-4412-b4ef-8898aaf7dedd/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:04:12,460 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1938914-8898-4412-b4ef-8898aaf7dedd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:04:12,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1938914-8898-4412-b4ef-8898aaf7dedd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 06:04:12,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:04:12,556 INFO L262 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 06:04:12,563 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:04:12,695 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 20 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:04:12,696 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:04:12,868 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 15 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 06:04:12,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1295491474] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:04:12,868 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 06:04:12,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6, 6] total 15 [2023-11-29 06:04:12,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705864358] [2023-11-29 06:04:12,869 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 06:04:12,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 06:04:12,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:04:12,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 06:04:12,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2023-11-29 06:04:12,871 INFO L87 Difference]: Start difference. First operand 363 states and 470 transitions. Second operand has 15 states, 12 states have (on average 8.416666666666666) internal successors, (101), 10 states have internal predecessors, (101), 6 states have call successors, (20), 7 states have call predecessors, (20), 6 states have return successors, (17), 8 states have call predecessors, (17), 6 states have call successors, (17) [2023-11-29 06:04:13,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:04:13,916 INFO L93 Difference]: Finished difference Result 758 states and 1005 transitions. [2023-11-29 06:04:13,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-29 06:04:13,917 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 8.416666666666666) internal successors, (101), 10 states have internal predecessors, (101), 6 states have call successors, (20), 7 states have call predecessors, (20), 6 states have return successors, (17), 8 states have call predecessors, (17), 6 states have call successors, (17) Word has length 78 [2023-11-29 06:04:13,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:04:13,918 INFO L225 Difference]: With dead ends: 758 [2023-11-29 06:04:13,918 INFO L226 Difference]: Without dead ends: 0 [2023-11-29 06:04:13,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 174 SyntacticMatches, 4 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 338 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=342, Invalid=1140, Unknown=0, NotChecked=0, Total=1482 [2023-11-29 06:04:13,922 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 315 mSDsluCounter, 725 mSDsCounter, 0 mSdLazyCounter, 1084 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 835 SdHoareTripleChecker+Invalid, 1192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1084 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:04:13,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [318 Valid, 835 Invalid, 1192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1084 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 06:04:13,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-29 06:04:13,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-29 06:04:13,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:04:13,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 06:04:13,924 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 78 [2023-11-29 06:04:13,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:04:13,924 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 06:04:13,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 8.416666666666666) internal successors, (101), 10 states have internal predecessors, (101), 6 states have call successors, (20), 7 states have call predecessors, (20), 6 states have return successors, (17), 8 states have call predecessors, (17), 6 states have call successors, (17) [2023-11-29 06:04:13,924 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-29 06:04:13,924 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-29 06:04:13,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 06:04:13,933 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1938914-8898-4412-b4ef-8898aaf7dedd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 06:04:14,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1938914-8898-4412-b4ef-8898aaf7dedd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 06:04:14,129 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-29 06:04:15,672 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 822 828) no Hoare annotation was computed. [2023-11-29 06:04:15,672 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 822 828) the Hoare annotation is: true [2023-11-29 06:04:15,672 INFO L899 garLoopResultBuilder]: For program point L236-1(lines 232 243) no Hoare annotation was computed. [2023-11-29 06:04:15,672 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 232 243) the Hoare annotation is: true [2023-11-29 06:04:15,672 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 232 243) no Hoare annotation was computed. [2023-11-29 06:04:15,673 INFO L895 garLoopResultBuilder]: At program point L870(line 870) the Hoare annotation is: (let ((.cse3 (< |old(~pumpRunning~0)| 1)) (.cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse2 (<= 1 ~switchedOnBeforeTS~0)) (.cse0 (not (= 1 ~systemActive~0))) (.cse4 (< 2 |old(~waterLevel~0)|))) (and (or .cse0 (and .cse1 (= ~waterLevel~0 1) .cse2) (not (= |old(~waterLevel~0)| 2)) .cse3) (or (< |old(~switchedOnBeforeTS~0)| 1) .cse0 .cse3 .cse4 (and .cse1 (<= ~waterLevel~0 2) .cse2)) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse4))) [2023-11-29 06:04:15,673 INFO L895 garLoopResultBuilder]: At program point L705(line 705) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse7 (< 2 |old(~waterLevel~0)|)) (.cse1 (not (= 1 ~systemActive~0))) (.cse8 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse2 (not (= |old(~waterLevel~0)| 2))) (.cse6 (< |old(~pumpRunning~0)| 1)) (.cse3 (= ~pumpRunning~0 0)) (.cse5 (<= 1 ~switchedOnBeforeTS~0))) (and (or .cse0 .cse1 .cse2) (let ((.cse4 (<= ~waterLevel~0 2))) (or (< |old(~switchedOnBeforeTS~0)| 1) .cse1 (and .cse3 .cse4 .cse5) .cse6 .cse7 (and .cse8 .cse4 .cse5))) (or .cse0 (and .cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) .cse1 .cse7) (let ((.cse9 (= ~waterLevel~0 1))) (or .cse1 (and .cse8 .cse9 .cse5) .cse2 .cse6 (and .cse3 .cse9 .cse5))))) [2023-11-29 06:04:15,673 INFO L899 garLoopResultBuilder]: For program point L705-1(line 705) no Hoare annotation was computed. [2023-11-29 06:04:15,674 INFO L895 garLoopResultBuilder]: At program point L875(line 875) the Hoare annotation is: (let ((.cse1 (< |old(~pumpRunning~0)| 1)) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (< 2 |old(~waterLevel~0)|))) (and (or .cse0 (not (= |old(~waterLevel~0)| 2)) .cse1) (or (< |old(~switchedOnBeforeTS~0)| 1) .cse0 .cse1 .cse2) (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse0 .cse2))) [2023-11-29 06:04:15,674 INFO L899 garLoopResultBuilder]: For program point L875-1(lines 856 880) no Hoare annotation was computed. [2023-11-29 06:04:15,674 INFO L899 garLoopResultBuilder]: For program point L809-1(lines 809 815) no Hoare annotation was computed. [2023-11-29 06:04:15,674 INFO L899 garLoopResultBuilder]: For program point L999(lines 999 1003) no Hoare annotation was computed. [2023-11-29 06:04:15,674 INFO L899 garLoopResultBuilder]: For program point L999-2(lines 999 1003) no Hoare annotation was computed. [2023-11-29 06:04:15,674 INFO L899 garLoopResultBuilder]: For program point L54(line 54) no Hoare annotation was computed. [2023-11-29 06:04:15,675 INFO L895 garLoopResultBuilder]: At program point L690(line 690) the Hoare annotation is: (let ((.cse4 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse5 (< 2 |old(~waterLevel~0)|)) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse3 (= ~switchedOnBeforeTS~0 |old(~switchedOnBeforeTS~0)|)) (.cse1 (< |old(~pumpRunning~0)| 1))) (and (or (< |old(~switchedOnBeforeTS~0)| 1) .cse0 .cse1 (and .cse2 .cse3 .cse4) .cse5) (or (and (= ~pumpRunning~0 0) .cse3 .cse4) (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse5) (or .cse0 (and .cse2 (= 2 ~waterLevel~0) .cse3) (not (= |old(~waterLevel~0)| 2)) .cse1))) [2023-11-29 06:04:15,675 INFO L899 garLoopResultBuilder]: For program point L690-1(line 690) no Hoare annotation was computed. [2023-11-29 06:04:15,675 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 795 821) the Hoare annotation is: (let ((.cse4 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse5 (< 2 |old(~waterLevel~0)|)) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse3 (= ~switchedOnBeforeTS~0 |old(~switchedOnBeforeTS~0)|)) (.cse1 (< |old(~pumpRunning~0)| 1))) (and (or (< |old(~switchedOnBeforeTS~0)| 1) .cse0 .cse1 (and .cse2 .cse3 .cse4) .cse5) (or (and (= ~pumpRunning~0 0) .cse3 .cse4) (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse5) (or .cse0 (and .cse2 (= 2 ~waterLevel~0) .cse3) (not (= |old(~waterLevel~0)| 2)) .cse1))) [2023-11-29 06:04:15,675 INFO L899 garLoopResultBuilder]: For program point L707(lines 707 717) no Hoare annotation was computed. [2023-11-29 06:04:15,675 INFO L899 garLoopResultBuilder]: For program point L802(lines 802 808) no Hoare annotation was computed. [2023-11-29 06:04:15,676 INFO L899 garLoopResultBuilder]: For program point L802-2(lines 798 820) no Hoare annotation was computed. [2023-11-29 06:04:15,676 INFO L899 garLoopResultBuilder]: For program point L864(lines 864 872) no Hoare annotation was computed. [2023-11-29 06:04:15,676 INFO L899 garLoopResultBuilder]: For program point L703(lines 703 720) no Hoare annotation was computed. [2023-11-29 06:04:15,676 INFO L899 garLoopResultBuilder]: For program point L703-1(lines 695 723) no Hoare annotation was computed. [2023-11-29 06:04:15,676 INFO L899 garLoopResultBuilder]: For program point L860(lines 860 877) no Hoare annotation was computed. [2023-11-29 06:04:15,676 INFO L899 garLoopResultBuilder]: For program point L212(lines 212 216) no Hoare annotation was computed. [2023-11-29 06:04:15,676 INFO L899 garLoopResultBuilder]: For program point L212-2(lines 208 219) no Hoare annotation was computed. [2023-11-29 06:04:15,676 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 795 821) no Hoare annotation was computed. [2023-11-29 06:04:15,677 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2023-11-29 06:04:15,677 INFO L899 garLoopResultBuilder]: For program point L708(lines 708 714) no Hoare annotation was computed. [2023-11-29 06:04:15,677 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 99 128) no Hoare annotation was computed. [2023-11-29 06:04:15,677 INFO L899 garLoopResultBuilder]: For program point L124(lines 99 128) no Hoare annotation was computed. [2023-11-29 06:04:15,677 INFO L899 garLoopResultBuilder]: For program point L120(line 120) no Hoare annotation was computed. [2023-11-29 06:04:15,677 INFO L899 garLoopResultBuilder]: For program point L113(lines 113 117) no Hoare annotation was computed. [2023-11-29 06:04:15,678 INFO L902 garLoopResultBuilder]: At program point L113-1(lines 113 117) the Hoare annotation is: true [2023-11-29 06:04:15,678 INFO L902 garLoopResultBuilder]: At program point L109-2(lines 109 123) the Hoare annotation is: true [2023-11-29 06:04:15,678 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 99 128) the Hoare annotation is: true [2023-11-29 06:04:15,678 INFO L902 garLoopResultBuilder]: At program point L105(line 105) the Hoare annotation is: true [2023-11-29 06:04:15,678 INFO L899 garLoopResultBuilder]: For program point L105-1(line 105) no Hoare annotation was computed. [2023-11-29 06:04:15,678 INFO L899 garLoopResultBuilder]: For program point L771(lines 771 775) no Hoare annotation was computed. [2023-11-29 06:04:15,678 INFO L895 garLoopResultBuilder]: At program point L771-2(lines 765 776) the Hoare annotation is: (let ((.cse3 (<= 1 ~pumpRunning~0)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (<= ~waterLevel~0 2))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2) (and .cse3 (= 2 ~waterLevel~0) .cse0 .cse1) (and .cse3 .cse0 .cse1 .cse2 (<= 1 ~switchedOnBeforeTS~0)))) [2023-11-29 06:04:15,679 INFO L899 garLoopResultBuilder]: For program point L755(lines 755 761) no Hoare annotation was computed. [2023-11-29 06:04:15,679 INFO L899 garLoopResultBuilder]: For program point L755-1(lines 755 761) no Hoare annotation was computed. [2023-11-29 06:04:15,679 INFO L899 garLoopResultBuilder]: For program point L784(lines 725 788) no Hoare annotation was computed. [2023-11-29 06:04:15,679 INFO L895 garLoopResultBuilder]: At program point L747(line 747) the Hoare annotation is: (let ((.cse3 (<= 1 ~pumpRunning~0)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (<= ~waterLevel~0 2))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2) (and .cse3 (= 2 ~waterLevel~0) .cse0 .cse1) (and .cse3 .cse0 .cse1 .cse2 (<= 1 ~switchedOnBeforeTS~0)))) [2023-11-29 06:04:15,679 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-29 06:04:15,679 INFO L899 garLoopResultBuilder]: For program point L186(lines 186 193) no Hoare annotation was computed. [2023-11-29 06:04:15,679 INFO L899 garLoopResultBuilder]: For program point L186-2(lines 186 193) no Hoare annotation was computed. [2023-11-29 06:04:15,679 INFO L895 garLoopResultBuilder]: At program point L781(lines 734 782) the Hoare annotation is: false [2023-11-29 06:04:15,679 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-29 06:04:15,680 INFO L899 garLoopResultBuilder]: For program point L736(lines 735 780) no Hoare annotation was computed. [2023-11-29 06:04:15,680 INFO L899 garLoopResultBuilder]: For program point L765(lines 765 776) no Hoare annotation was computed. [2023-11-29 06:04:15,680 INFO L895 garLoopResultBuilder]: At program point L757(line 757) the Hoare annotation is: (let ((.cse3 (<= 1 ~pumpRunning~0)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (<= ~waterLevel~0 2))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2) (and .cse3 (= 2 ~waterLevel~0) .cse0 .cse1) (and .cse3 .cse0 .cse1 .cse2 (<= 1 ~switchedOnBeforeTS~0)))) [2023-11-29 06:04:15,680 INFO L895 garLoopResultBuilder]: At program point L778(lines 735 780) the Hoare annotation is: (let ((.cse3 (<= 1 ~pumpRunning~0)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (<= ~waterLevel~0 2))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2) (and .cse3 (= 2 ~waterLevel~0) .cse0 .cse1) (and .cse3 .cse0 .cse1 .cse2 (<= 1 ~switchedOnBeforeTS~0)))) [2023-11-29 06:04:15,680 INFO L899 garLoopResultBuilder]: For program point L745(lines 745 751) no Hoare annotation was computed. [2023-11-29 06:04:15,680 INFO L899 garLoopResultBuilder]: For program point L745-1(lines 745 751) no Hoare annotation was computed. [2023-11-29 06:04:15,680 INFO L899 garLoopResultBuilder]: For program point L289(lines 289 295) no Hoare annotation was computed. [2023-11-29 06:04:15,680 INFO L895 garLoopResultBuilder]: At program point L849(line 849) the Hoare annotation is: (let ((.cse0 (< 2 ~waterLevel~0)) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (= |old(~pumpRunning~0)| 0)) .cse1) (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 (< ~switchedOnBeforeTS~0 1) (< |old(~pumpRunning~0)| 1)))) [2023-11-29 06:04:15,681 INFO L899 garLoopResultBuilder]: For program point L849-1(lines 830 854) no Hoare annotation was computed. [2023-11-29 06:04:15,681 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 830 854) the Hoare annotation is: (let ((.cse0 (< 2 ~waterLevel~0)) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse1) (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 (< ~switchedOnBeforeTS~0 1) (< |old(~pumpRunning~0)| 1)))) [2023-11-29 06:04:15,681 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDry_returnLabel#1(lines 285 298) no Hoare annotation was computed. [2023-11-29 06:04:15,681 INFO L899 garLoopResultBuilder]: For program point L897(lines 897 903) no Hoare annotation was computed. [2023-11-29 06:04:15,681 INFO L899 garLoopResultBuilder]: For program point L897-2(lines 890 906) no Hoare annotation was computed. [2023-11-29 06:04:15,681 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 830 854) no Hoare annotation was computed. [2023-11-29 06:04:15,681 INFO L899 garLoopResultBuilder]: For program point L980(lines 980 984) no Hoare annotation was computed. [2023-11-29 06:04:15,681 INFO L899 garLoopResultBuilder]: For program point L980-2(lines 980 984) no Hoare annotation was computed. [2023-11-29 06:04:15,681 INFO L895 garLoopResultBuilder]: At program point L844(line 844) the Hoare annotation is: (let ((.cse0 (< 2 ~waterLevel~0)) (.cse1 (not (= 1 ~systemActive~0)))) (and (or (and (= ~pumpRunning~0 0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~6#1| 0)) .cse0 (not (= |old(~pumpRunning~0)| 0)) .cse1) (or .cse0 .cse1 (< ~switchedOnBeforeTS~0 1) (< |old(~pumpRunning~0)| 1)))) [2023-11-29 06:04:15,682 INFO L899 garLoopResultBuilder]: For program point L838(lines 838 846) no Hoare annotation was computed. [2023-11-29 06:04:15,682 INFO L899 garLoopResultBuilder]: For program point L834(lines 834 851) no Hoare annotation was computed. [2023-11-29 06:04:15,682 INFO L899 garLoopResultBuilder]: For program point L224-1(lines 220 231) no Hoare annotation was computed. [2023-11-29 06:04:15,682 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 220 231) no Hoare annotation was computed. [2023-11-29 06:04:15,682 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 220 231) the Hoare annotation is: (let ((.cse0 (< ~pumpRunning~0 1)) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse3 (< 2 |old(~waterLevel~0)|))) (and (or .cse0 (= 2 ~waterLevel~0) .cse1 (not (= |old(~waterLevel~0)| 2))) (or (not (= ~pumpRunning~0 0)) .cse1 .cse2 .cse3) (or .cse0 .cse1 (< ~switchedOnBeforeTS~0 1) .cse2 .cse3))) [2023-11-29 06:04:15,682 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 926 934) no Hoare annotation was computed. [2023-11-29 06:04:15,683 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 926 934) the Hoare annotation is: true [2023-11-29 06:04:15,685 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:04:15,687 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 06:04:15,699 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 06:04:15 BoogieIcfgContainer [2023-11-29 06:04:15,699 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 06:04:15,699 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 06:04:15,700 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 06:04:15,700 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 06:04:15,700 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:04:08" (3/4) ... [2023-11-29 06:04:15,702 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 06:04:15,705 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2023-11-29 06:04:15,705 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2023-11-29 06:04:15,705 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2023-11-29 06:04:15,705 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2023-11-29 06:04:15,706 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2023-11-29 06:04:15,706 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2023-11-29 06:04:15,706 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2023-11-29 06:04:15,713 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 36 nodes and edges [2023-11-29 06:04:15,714 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-29 06:04:15,715 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-29 06:04:15,716 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 06:04:15,716 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 06:04:15,826 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1938914-8898-4412-b4ef-8898aaf7dedd/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 06:04:15,827 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1938914-8898-4412-b4ef-8898aaf7dedd/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 06:04:15,827 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 06:04:15,828 INFO L158 Benchmark]: Toolchain (without parser) took 7791.52ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 145.1MB in the beginning and 93.6MB in the end (delta: 51.5MB). Peak memory consumption was 85.7MB. Max. memory is 16.1GB. [2023-11-29 06:04:15,828 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 121.6MB. Free memory is still 89.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 06:04:15,829 INFO L158 Benchmark]: CACSL2BoogieTranslator took 405.80ms. Allocated memory is still 178.3MB. Free memory was 145.1MB in the beginning and 135.7MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-29 06:04:15,829 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.86ms. Allocated memory is still 178.3MB. Free memory was 135.7MB in the beginning and 133.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 06:04:15,829 INFO L158 Benchmark]: Boogie Preprocessor took 43.13ms. Allocated memory is still 178.3MB. Free memory was 133.6MB in the beginning and 130.8MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 06:04:15,830 INFO L158 Benchmark]: RCFGBuilder took 441.08ms. Allocated memory is still 178.3MB. Free memory was 130.8MB in the beginning and 107.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-29 06:04:15,830 INFO L158 Benchmark]: TraceAbstraction took 6716.60ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 107.7MB in the beginning and 100.9MB in the end (delta: 6.8MB). Peak memory consumption was 87.0MB. Max. memory is 16.1GB. [2023-11-29 06:04:15,830 INFO L158 Benchmark]: Witness Printer took 127.72ms. Allocated memory is still 213.9MB. Free memory was 100.9MB in the beginning and 93.6MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-29 06:04:15,832 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 121.6MB. Free memory is still 89.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 405.80ms. Allocated memory is still 178.3MB. Free memory was 145.1MB in the beginning and 135.7MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.86ms. Allocated memory is still 178.3MB. Free memory was 135.7MB in the beginning and 133.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.13ms. Allocated memory is still 178.3MB. Free memory was 133.6MB in the beginning and 130.8MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 441.08ms. Allocated memory is still 178.3MB. Free memory was 130.8MB in the beginning and 107.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 6716.60ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 107.7MB in the beginning and 100.9MB in the end (delta: 6.8MB). Peak memory consumption was 87.0MB. Max. memory is 16.1GB. * Witness Printer took 127.72ms. Allocated memory is still 213.9MB. Free memory was 100.9MB in the beginning and 93.6MB 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,"featureselect.i","") [58] - GenericResultAtLocation [Line: 96]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [96] - GenericResultAtLocation [Line: 199]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [199] - GenericResultAtLocation [Line: 308]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [308] - GenericResultAtLocation [Line: 674]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [674] - GenericResultAtLocation [Line: 724]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [724] - GenericResultAtLocation [Line: 789]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [789] * 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, 73 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.7s, OverallIterations: 10, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1368 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1337 mSDsluCounter, 2386 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1663 mSDsCounter, 401 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2206 IncrementalHoareTripleChecker+Invalid, 2607 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 401 mSolverCounterUnsat, 723 mSDtfsCounter, 2206 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 343 GetRequests, 245 SyntacticMatches, 4 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 535 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=363occurred in iteration=9, InterpolantAutomatonStates: 92, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 95 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 21 LocationsWithAnnotation, 467 PreInvPairs, 544 NumberOfFragments, 667 HoareAnnotationTreeSize, 467 FomulaSimplifications, 1629 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 21 FomulaSimplificationsInter, 3443 FormulaSimplificationTreeSizeReductionInter, 1.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 463 NumberOfCodeBlocks, 463 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 529 ConstructedInterpolants, 0 QuantifiedInterpolants, 1035 SizeOfPredicates, 3 NumberOfNonLiveVariables, 309 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 12 InterpolantComputations, 9 PerfectInterpolantSequences, 71/99 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: 109]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 734]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 735]: Loop Invariant Derived loop invariant: ((((((pumpRunning == 0) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel <= 2)) || ((((1 <= pumpRunning) && (2 == waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0))) || (((((1 <= pumpRunning) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS))) RESULT: Ultimate proved your program to be correct! [2023-11-29 06:04:15,850 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1938914-8898-4412-b4ef-8898aaf7dedd/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE