./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product58.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product58.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 a5df7e7a530538a677becf014bfb990c6b0570c5e1058d85d7e78cec25f53253 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 03:08:28,694 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 03:08:28,763 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 03:08:28,767 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 03:08:28,768 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 03:08:28,790 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 03:08:28,791 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 03:08:28,791 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 03:08:28,792 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 03:08:28,793 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 03:08:28,794 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 03:08:28,794 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 03:08:28,794 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 03:08:28,794 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 03:08:28,796 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 03:08:28,796 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 03:08:28,796 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 03:08:28,796 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 03:08:28,796 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 03:08:28,797 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 03:08:28,797 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 03:08:28,799 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 03:08:28,799 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 03:08:28,799 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 03:08:28,799 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 03:08:28,799 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 03:08:28,799 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 03:08:28,800 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 03:08:28,800 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 03:08:28,800 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 03:08:28,800 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 03:08:28,800 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 03:08:28,800 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 03:08:28,800 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 03:08:28,800 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 03:08:28,801 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 03:08:28,801 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 03:08:28,801 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 03:08:28,801 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 03:08:28,801 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 03:08:28,801 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 03:08:28,802 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 03:08:28,802 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a5df7e7a530538a677becf014bfb990c6b0570c5e1058d85d7e78cec25f53253 [2024-10-14 03:08:28,996 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 03:08:29,016 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 03:08:29,018 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 03:08:29,020 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 03:08:29,020 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 03:08:29,021 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product58.cil.c [2024-10-14 03:08:30,233 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 03:08:30,434 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 03:08:30,434 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product58.cil.c [2024-10-14 03:08:30,442 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24b4dd1aa/e884b621749a47b099def37f4df1ef6e/FLAG6d464136c [2024-10-14 03:08:30,452 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24b4dd1aa/e884b621749a47b099def37f4df1ef6e [2024-10-14 03:08:30,453 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 03:08:30,454 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 03:08:30,458 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 03:08:30,459 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 03:08:30,462 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 03:08:30,463 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:08:30" (1/1) ... [2024-10-14 03:08:30,465 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9058ebf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:08:30, skipping insertion in model container [2024-10-14 03:08:30,465 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:08:30" (1/1) ... [2024-10-14 03:08:30,504 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 03:08:30,726 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product58.cil.c[19170,19183] [2024-10-14 03:08:30,731 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 03:08:30,745 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 03:08:30,758 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] [2024-10-14 03:08:30,759 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [160] [2024-10-14 03:08:30,759 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [526] [2024-10-14 03:08:30,760 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [596] [2024-10-14 03:08:30,760 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [824] [2024-10-14 03:08:30,760 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [864] [2024-10-14 03:08:30,760 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [902] [2024-10-14 03:08:30,760 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [999] [2024-10-14 03:08:30,805 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product58.cil.c[19170,19183] [2024-10-14 03:08:30,805 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 03:08:30,823 INFO L204 MainTranslator]: Completed translation [2024-10-14 03:08:30,824 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:08:30 WrapperNode [2024-10-14 03:08:30,824 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 03:08:30,825 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 03:08:30,825 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 03:08:30,825 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 03:08:30,831 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:08:30" (1/1) ... [2024-10-14 03:08:30,841 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:08:30" (1/1) ... [2024-10-14 03:08:30,861 INFO L138 Inliner]: procedures = 58, calls = 102, calls flagged for inlining = 26, calls inlined = 23, statements flattened = 226 [2024-10-14 03:08:30,861 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 03:08:30,862 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 03:08:30,862 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 03:08:30,862 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 03:08:30,871 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:08:30" (1/1) ... [2024-10-14 03:08:30,871 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:08:30" (1/1) ... [2024-10-14 03:08:30,877 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:08:30" (1/1) ... [2024-10-14 03:08:30,898 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]. [2024-10-14 03:08:30,898 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:08:30" (1/1) ... [2024-10-14 03:08:30,899 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:08:30" (1/1) ... [2024-10-14 03:08:30,902 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:08:30" (1/1) ... [2024-10-14 03:08:30,905 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:08:30" (1/1) ... [2024-10-14 03:08:30,906 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:08:30" (1/1) ... [2024-10-14 03:08:30,907 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:08:30" (1/1) ... [2024-10-14 03:08:30,909 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 03:08:30,910 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 03:08:30,910 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 03:08:30,910 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 03:08:30,910 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:08:30" (1/1) ... [2024-10-14 03:08:30,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 03:08:30,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:08:30,937 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 03:08:30,939 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 03:08:30,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 03:08:30,972 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-10-14 03:08:30,972 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-10-14 03:08:30,972 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-10-14 03:08:30,972 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-10-14 03:08:30,972 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-10-14 03:08:30,972 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-10-14 03:08:30,972 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2024-10-14 03:08:30,972 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2024-10-14 03:08:30,972 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-10-14 03:08:30,972 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-10-14 03:08:30,972 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-10-14 03:08:30,972 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-10-14 03:08:30,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 03:08:30,973 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-10-14 03:08:30,973 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-10-14 03:08:30,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 03:08:30,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 03:08:31,028 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 03:08:31,030 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 03:08:31,205 INFO L? ?]: Removed 49 outVars from TransFormulas that were not future-live. [2024-10-14 03:08:31,205 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 03:08:31,264 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 03:08:31,265 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-14 03:08:31,265 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:08:31 BoogieIcfgContainer [2024-10-14 03:08:31,265 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 03:08:31,267 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 03:08:31,268 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 03:08:31,271 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 03:08:31,271 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 03:08:30" (1/3) ... [2024-10-14 03:08:31,271 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d222b45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:08:31, skipping insertion in model container [2024-10-14 03:08:31,271 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:08:30" (2/3) ... [2024-10-14 03:08:31,272 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d222b45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:08:31, skipping insertion in model container [2024-10-14 03:08:31,272 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:08:31" (3/3) ... [2024-10-14 03:08:31,273 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product58.cil.c [2024-10-14 03:08:31,285 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 03:08:31,286 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 03:08:31,337 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 03:08:31,344 INFO L333 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, 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;@2c535011, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 03:08:31,344 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 03:08:31,348 INFO L276 IsEmpty]: Start isEmpty. Operand has 72 states, 51 states have (on average 1.5490196078431373) internal successors, (79), 59 states have internal predecessors, (79), 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) [2024-10-14 03:08:31,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-10-14 03:08:31,354 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:08:31,355 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:08:31,355 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:08:31,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:08:31,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1978231076, now seen corresponding path program 1 times [2024-10-14 03:08:31,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:08:31,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514843478] [2024-10-14 03:08:31,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:08:31,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:08:31,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:31,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-14 03:08:31,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:31,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:08:31,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:08:31,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514843478] [2024-10-14 03:08:31,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514843478] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:08:31,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:08:31,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 03:08:31,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301540339] [2024-10-14 03:08:31,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:08:31,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 03:08:31,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:08:31,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 03:08:31,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 03:08:31,530 INFO L87 Difference]: Start difference. First operand has 72 states, 51 states have (on average 1.5490196078431373) internal successors, (79), 59 states have internal predecessors, (79), 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 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 03:08:31,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:08:31,582 INFO L93 Difference]: Finished difference Result 142 states and 207 transitions. [2024-10-14 03:08:31,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 03:08:31,585 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2024-10-14 03:08:31,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:08:31,603 INFO L225 Difference]: With dead ends: 142 [2024-10-14 03:08:31,604 INFO L226 Difference]: Without dead ends: 67 [2024-10-14 03:08:31,606 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 03:08:31,608 INFO L432 NwaCegarLoop]: 82 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, 82 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 [2024-10-14 03:08:31,609 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 82 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:08:31,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2024-10-14 03:08:31,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2024-10-14 03:08:31,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 48 states have (on average 1.4375) internal successors, (69), 55 states have internal predecessors, (69), 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) [2024-10-14 03:08:31,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 92 transitions. [2024-10-14 03:08:31,669 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 92 transitions. Word has length 17 [2024-10-14 03:08:31,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:08:31,670 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 92 transitions. [2024-10-14 03:08:31,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 03:08:31,670 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 92 transitions. [2024-10-14 03:08:31,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-10-14 03:08:31,672 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:08:31,672 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:08:31,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 03:08:31,672 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:08:31,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:08:31,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1081086410, now seen corresponding path program 1 times [2024-10-14 03:08:31,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:08:31,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205340520] [2024-10-14 03:08:31,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:08:31,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:08:31,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:31,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-14 03:08:31,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:31,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:08:31,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:08:31,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205340520] [2024-10-14 03:08:31,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205340520] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:08:31,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:08:31,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:08:31,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314226309] [2024-10-14 03:08:31,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:08:31,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:08:31,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:08:31,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:08:31,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:08:31,745 INFO L87 Difference]: Start difference. First operand 67 states and 92 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 03:08:31,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:08:31,781 INFO L93 Difference]: Finished difference Result 107 states and 147 transitions. [2024-10-14 03:08:31,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:08:31,782 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2024-10-14 03:08:31,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:08:31,782 INFO L225 Difference]: With dead ends: 107 [2024-10-14 03:08:31,782 INFO L226 Difference]: Without dead ends: 59 [2024-10-14 03:08:31,783 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:08:31,784 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 11 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:08:31,784 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 123 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:08:31,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2024-10-14 03:08:31,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2024-10-14 03:08:31,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 43 states have (on average 1.4651162790697674) internal successors, (63), 50 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) [2024-10-14 03:08:31,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 81 transitions. [2024-10-14 03:08:31,790 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 81 transitions. Word has length 18 [2024-10-14 03:08:31,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:08:31,790 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 81 transitions. [2024-10-14 03:08:31,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 03:08:31,790 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 81 transitions. [2024-10-14 03:08:31,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-10-14 03:08:31,791 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:08:31,791 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:08:31,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 03:08:31,791 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:08:31,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:08:31,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1153666209, now seen corresponding path program 1 times [2024-10-14 03:08:31,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:08:31,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478059846] [2024-10-14 03:08:31,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:08:31,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:08:31,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:31,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 03:08:31,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:31,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:08:31,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:08:31,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478059846] [2024-10-14 03:08:31,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478059846] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:08:31,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:08:31,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:08:31,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479709887] [2024-10-14 03:08:31,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:08:31,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:08:31,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:08:31,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:08:31,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:08:31,866 INFO L87 Difference]: Start difference. First operand 59 states and 81 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 03:08:31,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:08:31,904 INFO L93 Difference]: Finished difference Result 116 states and 161 transitions. [2024-10-14 03:08:31,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:08:31,904 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2024-10-14 03:08:31,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:08:31,905 INFO L225 Difference]: With dead ends: 116 [2024-10-14 03:08:31,905 INFO L226 Difference]: Without dead ends: 59 [2024-10-14 03:08:31,906 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:08:31,907 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 76 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:08:31,907 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 66 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:08:31,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2024-10-14 03:08:31,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2024-10-14 03:08:31,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 43 states have (on average 1.441860465116279) internal successors, (62), 50 states have internal predecessors, (62), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-14 03:08:31,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 80 transitions. [2024-10-14 03:08:31,915 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 80 transitions. Word has length 21 [2024-10-14 03:08:31,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:08:31,915 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 80 transitions. [2024-10-14 03:08:31,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 03:08:31,916 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 80 transitions. [2024-10-14 03:08:31,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-10-14 03:08:31,917 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:08:31,917 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:08:31,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 03:08:31,917 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:08:31,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:08:31,917 INFO L85 PathProgramCache]: Analyzing trace with hash -576669556, now seen corresponding path program 1 times [2024-10-14 03:08:31,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:08:31,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130103607] [2024-10-14 03:08:31,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:08:31,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:08:31,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:31,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 03:08:31,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:31,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:08:31,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:08:31,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130103607] [2024-10-14 03:08:31,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130103607] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:08:31,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:08:31,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:08:31,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028787816] [2024-10-14 03:08:31,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:08:31,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:08:31,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:08:31,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:08:31,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:08:31,990 INFO L87 Difference]: Start difference. First operand 59 states and 80 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 03:08:32,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:08:32,047 INFO L93 Difference]: Finished difference Result 156 states and 214 transitions. [2024-10-14 03:08:32,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:08:32,048 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2024-10-14 03:08:32,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:08:32,050 INFO L225 Difference]: With dead ends: 156 [2024-10-14 03:08:32,051 INFO L226 Difference]: Without dead ends: 99 [2024-10-14 03:08:32,051 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:08:32,052 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 54 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:08:32,052 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 124 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:08:32,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-10-14 03:08:32,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 97. [2024-10-14 03:08:32,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 71 states have (on average 1.3943661971830985) internal successors, (99), 79 states have internal predecessors, (99), 13 states have call successors, (13), 12 states have call predecessors, (13), 12 states have return successors, (17), 13 states have call predecessors, (17), 13 states have call successors, (17) [2024-10-14 03:08:32,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 129 transitions. [2024-10-14 03:08:32,067 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 129 transitions. Word has length 26 [2024-10-14 03:08:32,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:08:32,068 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 129 transitions. [2024-10-14 03:08:32,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 03:08:32,068 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 129 transitions. [2024-10-14 03:08:32,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-10-14 03:08:32,068 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:08:32,068 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:08:32,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 03:08:32,069 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:08:32,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:08:32,069 INFO L85 PathProgramCache]: Analyzing trace with hash 2009465675, now seen corresponding path program 1 times [2024-10-14 03:08:32,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:08:32,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511264397] [2024-10-14 03:08:32,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:08:32,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:08:32,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:32,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 03:08:32,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:32,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 03:08:32,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:32,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 03:08:32,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:32,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:08:32,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:08:32,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511264397] [2024-10-14 03:08:32,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511264397] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:08:32,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:08:32,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 03:08:32,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686873284] [2024-10-14 03:08:32,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:08:32,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:08:32,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:08:32,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:08:32,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:08:32,179 INFO L87 Difference]: Start difference. First operand 97 states and 129 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 03:08:32,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:08:32,328 INFO L93 Difference]: Finished difference Result 216 states and 296 transitions. [2024-10-14 03:08:32,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:08:32,328 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 36 [2024-10-14 03:08:32,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:08:32,329 INFO L225 Difference]: With dead ends: 216 [2024-10-14 03:08:32,329 INFO L226 Difference]: Without dead ends: 121 [2024-10-14 03:08:32,330 INFO L431 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 [2024-10-14 03:08:32,330 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 48 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:08:32,331 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 184 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:08:32,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-10-14 03:08:32,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 119. [2024-10-14 03:08:32,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 88 states have (on average 1.3863636363636365) internal successors, (122), 96 states have internal predecessors, (122), 15 states have call successors, (15), 12 states have call predecessors, (15), 15 states have return successors, (22), 16 states have call predecessors, (22), 15 states have call successors, (22) [2024-10-14 03:08:32,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 159 transitions. [2024-10-14 03:08:32,348 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 159 transitions. Word has length 36 [2024-10-14 03:08:32,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:08:32,348 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 159 transitions. [2024-10-14 03:08:32,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 03:08:32,362 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 159 transitions. [2024-10-14 03:08:32,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-10-14 03:08:32,363 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:08:32,363 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:08:32,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 03:08:32,363 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:08:32,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:08:32,364 INFO L85 PathProgramCache]: Analyzing trace with hash -291356915, now seen corresponding path program 1 times [2024-10-14 03:08:32,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:08:32,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767195813] [2024-10-14 03:08:32,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:08:32,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:08:32,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:32,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 03:08:32,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:32,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 03:08:32,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:32,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 03:08:32,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:32,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:08:32,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:08:32,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767195813] [2024-10-14 03:08:32,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767195813] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:08:32,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:08:32,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 03:08:32,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778520438] [2024-10-14 03:08:32,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:08:32,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:08:32,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:08:32,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:08:32,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:08:32,483 INFO L87 Difference]: Start difference. First operand 119 states and 159 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 03:08:32,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:08:32,619 INFO L93 Difference]: Finished difference Result 236 states and 316 transitions. [2024-10-14 03:08:32,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:08:32,620 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 36 [2024-10-14 03:08:32,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:08:32,621 INFO L225 Difference]: With dead ends: 236 [2024-10-14 03:08:32,621 INFO L226 Difference]: Without dead ends: 119 [2024-10-14 03:08:32,622 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-14 03:08:32,622 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 99 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:08:32,626 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 176 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:08:32,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-10-14 03:08:32,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 117. [2024-10-14 03:08:32,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 86 states have (on average 1.3488372093023255) internal successors, (116), 94 states have internal predecessors, (116), 15 states have call successors, (15), 12 states have call predecessors, (15), 15 states have return successors, (22), 16 states have call predecessors, (22), 15 states have call successors, (22) [2024-10-14 03:08:32,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 153 transitions. [2024-10-14 03:08:32,641 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 153 transitions. Word has length 36 [2024-10-14 03:08:32,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:08:32,641 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 153 transitions. [2024-10-14 03:08:32,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 03:08:32,642 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 153 transitions. [2024-10-14 03:08:32,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-10-14 03:08:32,642 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:08:32,643 INFO L215 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] [2024-10-14 03:08:32,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 03:08:32,643 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:08:32,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:08:32,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1164506548, now seen corresponding path program 1 times [2024-10-14 03:08:32,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:08:32,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271047060] [2024-10-14 03:08:32,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:08:32,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:08:32,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:32,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 03:08:32,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:32,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 03:08:32,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:32,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-14 03:08:32,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:32,716 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 03:08:32,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:08:32,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271047060] [2024-10-14 03:08:32,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271047060] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:08:32,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:08:32,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 03:08:32,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595331734] [2024-10-14 03:08:32,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:08:32,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:08:32,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:08:32,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:08:32,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:08:32,717 INFO L87 Difference]: Start difference. First operand 117 states and 153 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 03:08:32,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:08:32,825 INFO L93 Difference]: Finished difference Result 236 states and 316 transitions. [2024-10-14 03:08:32,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:08:32,826 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 39 [2024-10-14 03:08:32,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:08:32,828 INFO L225 Difference]: With dead ends: 236 [2024-10-14 03:08:32,828 INFO L226 Difference]: Without dead ends: 121 [2024-10-14 03:08:32,828 INFO L431 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 [2024-10-14 03:08:32,830 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 48 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:08:32,830 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 186 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:08:32,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-10-14 03:08:32,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 119. [2024-10-14 03:08:32,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 88 states have (on average 1.3409090909090908) internal successors, (118), 96 states have internal predecessors, (118), 15 states have call successors, (15), 12 states have call predecessors, (15), 15 states have return successors, (22), 16 states have call predecessors, (22), 15 states have call successors, (22) [2024-10-14 03:08:32,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 155 transitions. [2024-10-14 03:08:32,846 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 155 transitions. Word has length 39 [2024-10-14 03:08:32,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:08:32,847 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 155 transitions. [2024-10-14 03:08:32,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 03:08:32,847 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 155 transitions. [2024-10-14 03:08:32,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-10-14 03:08:32,848 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:08:32,848 INFO L215 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] [2024-10-14 03:08:32,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 03:08:32,848 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:08:32,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:08:32,849 INFO L85 PathProgramCache]: Analyzing trace with hash -218229960, now seen corresponding path program 1 times [2024-10-14 03:08:32,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:08:32,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538872004] [2024-10-14 03:08:32,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:08:32,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:08:32,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:32,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 03:08:32,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:32,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 03:08:32,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:32,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-14 03:08:32,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:32,924 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 03:08:32,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:08:32,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538872004] [2024-10-14 03:08:32,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538872004] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:08:32,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:08:32,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 03:08:32,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541187563] [2024-10-14 03:08:32,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:08:32,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:08:32,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:08:32,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:08:32,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:08:32,926 INFO L87 Difference]: Start difference. First operand 119 states and 155 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 03:08:33,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:08:33,162 INFO L93 Difference]: Finished difference Result 376 states and 525 transitions. [2024-10-14 03:08:33,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:08:33,163 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 39 [2024-10-14 03:08:33,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:08:33,165 INFO L225 Difference]: With dead ends: 376 [2024-10-14 03:08:33,165 INFO L226 Difference]: Without dead ends: 259 [2024-10-14 03:08:33,166 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:08:33,168 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 175 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 03:08:33,168 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 240 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 03:08:33,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2024-10-14 03:08:33,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 255. [2024-10-14 03:08:33,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 187 states have (on average 1.3315508021390374) internal successors, (249), 200 states have internal predecessors, (249), 35 states have call successors, (35), 33 states have call predecessors, (35), 32 states have return successors, (59), 33 states have call predecessors, (59), 35 states have call successors, (59) [2024-10-14 03:08:33,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 343 transitions. [2024-10-14 03:08:33,196 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 343 transitions. Word has length 39 [2024-10-14 03:08:33,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:08:33,196 INFO L471 AbstractCegarLoop]: Abstraction has 255 states and 343 transitions. [2024-10-14 03:08:33,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 03:08:33,197 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 343 transitions. [2024-10-14 03:08:33,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-10-14 03:08:33,200 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:08:33,200 INFO L215 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] [2024-10-14 03:08:33,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 03:08:33,200 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:08:33,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:08:33,201 INFO L85 PathProgramCache]: Analyzing trace with hash -319501998, now seen corresponding path program 1 times [2024-10-14 03:08:33,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:08:33,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745306857] [2024-10-14 03:08:33,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:08:33,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:08:33,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:33,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-14 03:08:33,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:33,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-14 03:08:33,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:33,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 03:08:33,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:33,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 03:08:33,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:33,262 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 03:08:33,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:08:33,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745306857] [2024-10-14 03:08:33,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745306857] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:08:33,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:08:33,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 03:08:33,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410324483] [2024-10-14 03:08:33,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:08:33,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:08:33,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:08:33,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:08:33,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:08:33,265 INFO L87 Difference]: Start difference. First operand 255 states and 343 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 03:08:33,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:08:33,513 INFO L93 Difference]: Finished difference Result 550 states and 778 transitions. [2024-10-14 03:08:33,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 03:08:33,514 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 43 [2024-10-14 03:08:33,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:08:33,517 INFO L225 Difference]: With dead ends: 550 [2024-10-14 03:08:33,517 INFO L226 Difference]: Without dead ends: 548 [2024-10-14 03:08:33,517 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-10-14 03:08:33,517 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 251 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 03:08:33,517 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 137 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 03:08:33,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2024-10-14 03:08:33,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 502. [2024-10-14 03:08:33,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 369 states have (on average 1.3252032520325203) internal successors, (489), 397 states have internal predecessors, (489), 72 states have call successors, (72), 55 states have call predecessors, (72), 60 states have return successors, (158), 67 states have call predecessors, (158), 72 states have call successors, (158) [2024-10-14 03:08:33,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 719 transitions. [2024-10-14 03:08:33,564 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 719 transitions. Word has length 43 [2024-10-14 03:08:33,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:08:33,564 INFO L471 AbstractCegarLoop]: Abstraction has 502 states and 719 transitions. [2024-10-14 03:08:33,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 03:08:33,564 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 719 transitions. [2024-10-14 03:08:33,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-14 03:08:33,566 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:08:33,566 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:08:33,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 03:08:33,566 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:08:33,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:08:33,566 INFO L85 PathProgramCache]: Analyzing trace with hash -919413100, now seen corresponding path program 1 times [2024-10-14 03:08:33,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:08:33,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674537088] [2024-10-14 03:08:33,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:08:33,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:08:33,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:33,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-14 03:08:33,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:33,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 03:08:33,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:33,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-14 03:08:33,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:33,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 03:08:33,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:33,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 03:08:33,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:33,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-14 03:08:33,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:33,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:08:33,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:33,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-14 03:08:33,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:33,760 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 19 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-14 03:08:33,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:08:33,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674537088] [2024-10-14 03:08:33,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674537088] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 03:08:33,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [193303954] [2024-10-14 03:08:33,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:08:33,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 03:08:33,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:08:33,763 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 03:08:33,764 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 03:08:33,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:33,837 INFO L255 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-14 03:08:33,843 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 03:08:33,942 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 03:08:33,942 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 03:08:33,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [193303954] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:08:33,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 03:08:33,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2024-10-14 03:08:33,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306509059] [2024-10-14 03:08:33,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:08:33,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:08:33,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:08:33,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:08:33,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-10-14 03:08:33,943 INFO L87 Difference]: Start difference. First operand 502 states and 719 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-14 03:08:34,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:08:34,067 INFO L93 Difference]: Finished difference Result 1241 states and 1854 transitions. [2024-10-14 03:08:34,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:08:34,068 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 78 [2024-10-14 03:08:34,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:08:34,071 INFO L225 Difference]: With dead ends: 1241 [2024-10-14 03:08:34,071 INFO L226 Difference]: Without dead ends: 741 [2024-10-14 03:08:34,073 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-10-14 03:08:34,074 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 93 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:08:34,074 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 303 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:08:34,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2024-10-14 03:08:34,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 690. [2024-10-14 03:08:34,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 505 states have (on average 1.3188118811881189) internal successors, (666), 543 states have internal predecessors, (666), 100 states have call successors, (100), 80 states have call predecessors, (100), 84 states have return successors, (226), 88 states have call predecessors, (226), 100 states have call successors, (226) [2024-10-14 03:08:34,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 992 transitions. [2024-10-14 03:08:34,131 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 992 transitions. Word has length 78 [2024-10-14 03:08:34,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:08:34,131 INFO L471 AbstractCegarLoop]: Abstraction has 690 states and 992 transitions. [2024-10-14 03:08:34,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-14 03:08:34,131 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 992 transitions. [2024-10-14 03:08:34,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-14 03:08:34,132 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:08:34,132 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:08:34,146 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-14 03:08:34,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-14 03:08:34,334 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:08:34,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:08:34,334 INFO L85 PathProgramCache]: Analyzing trace with hash -496711274, now seen corresponding path program 1 times [2024-10-14 03:08:34,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:08:34,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079889917] [2024-10-14 03:08:34,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:08:34,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:08:34,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:34,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-14 03:08:34,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:34,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 03:08:34,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:34,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-14 03:08:34,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:34,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 03:08:34,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:34,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 03:08:34,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:34,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-14 03:08:34,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:34,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:08:34,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:34,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-14 03:08:34,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:34,442 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-10-14 03:08:34,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:08:34,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079889917] [2024-10-14 03:08:34,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079889917] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 03:08:34,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1190283914] [2024-10-14 03:08:34,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:08:34,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 03:08:34,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:08:34,444 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 03:08:34,445 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 03:08:34,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:34,505 INFO L255 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 03:08:34,510 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 03:08:34,529 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-10-14 03:08:34,529 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 03:08:34,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1190283914] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:08:34,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 03:08:34,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2024-10-14 03:08:34,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558623475] [2024-10-14 03:08:34,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:08:34,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 03:08:34,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:08:34,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 03:08:34,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-10-14 03:08:34,531 INFO L87 Difference]: Start difference. First operand 690 states and 992 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-14 03:08:34,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:08:34,572 INFO L93 Difference]: Finished difference Result 971 states and 1371 transitions. [2024-10-14 03:08:34,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 03:08:34,572 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 78 [2024-10-14 03:08:34,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:08:34,576 INFO L225 Difference]: With dead ends: 971 [2024-10-14 03:08:34,576 INFO L226 Difference]: Without dead ends: 283 [2024-10-14 03:08:34,577 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-10-14 03:08:34,578 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 0 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:08:34,578 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 174 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:08:34,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2024-10-14 03:08:34,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 280. [2024-10-14 03:08:34,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 207 states have (on average 1.2560386473429952) internal successors, (260), 222 states have internal predecessors, (260), 38 states have call successors, (38), 30 states have call predecessors, (38), 34 states have return successors, (66), 38 states have call predecessors, (66), 38 states have call successors, (66) [2024-10-14 03:08:34,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 364 transitions. [2024-10-14 03:08:34,595 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 364 transitions. Word has length 78 [2024-10-14 03:08:34,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:08:34,595 INFO L471 AbstractCegarLoop]: Abstraction has 280 states and 364 transitions. [2024-10-14 03:08:34,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-14 03:08:34,595 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 364 transitions. [2024-10-14 03:08:34,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-10-14 03:08:34,597 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:08:34,597 INFO L215 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:08:34,610 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-14 03:08:34,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-14 03:08:34,798 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:08:34,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:08:34,799 INFO L85 PathProgramCache]: Analyzing trace with hash -2079338809, now seen corresponding path program 1 times [2024-10-14 03:08:34,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:08:34,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505340263] [2024-10-14 03:08:34,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:08:34,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:08:34,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:34,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-14 03:08:34,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:34,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 03:08:34,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:34,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-14 03:08:34,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:34,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 03:08:34,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:34,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 03:08:34,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:34,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 03:08:34,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:34,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 03:08:34,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:34,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-14 03:08:34,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:34,934 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 17 proven. 5 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-14 03:08:34,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:08:34,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505340263] [2024-10-14 03:08:34,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505340263] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 03:08:34,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [525190979] [2024-10-14 03:08:34,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:08:34,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 03:08:34,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:08:34,936 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 03:08:34,938 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 03:08:35,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:35,005 INFO L255 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 03:08:35,007 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 03:08:35,017 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-10-14 03:08:35,017 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 03:08:35,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [525190979] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:08:35,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 03:08:35,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 8 [2024-10-14 03:08:35,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213211442] [2024-10-14 03:08:35,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:08:35,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:08:35,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:08:35,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:08:35,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-14 03:08:35,019 INFO L87 Difference]: Start difference. First operand 280 states and 364 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-14 03:08:35,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:08:35,069 INFO L93 Difference]: Finished difference Result 467 states and 615 transitions. [2024-10-14 03:08:35,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:08:35,069 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 83 [2024-10-14 03:08:35,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:08:35,070 INFO L225 Difference]: With dead ends: 467 [2024-10-14 03:08:35,070 INFO L226 Difference]: Without dead ends: 0 [2024-10-14 03:08:35,071 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-14 03:08:35,071 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 41 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:08:35,071 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 136 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:08:35,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-14 03:08:35,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-14 03:08:35,072 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) [2024-10-14 03:08:35,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-14 03:08:35,072 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 83 [2024-10-14 03:08:35,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:08:35,073 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-14 03:08:35,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-14 03:08:35,073 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-14 03:08:35,073 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-14 03:08:35,075 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-14 03:08:35,088 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-14 03:08:35,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 03:08:35,282 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:08:35,283 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-14 03:08:36,536 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-14 03:08:36,560 WARN L155 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (let ((.cse0 (= |old(~methAndRunningLastTime~0)| 0))) (and (or (not .cse0) (= ~methAndRunningLastTime~0 0)) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse2 (= |old(~pumpRunning~0)| 0)) (.cse1 (= 1 ~systemActive~0))) (or (and .cse0 .cse1 .cse2 (<= 1 |old(~waterLevel~0)|)) (and (not .cse2) .cse1 (<= 2 |old(~waterLevel~0)|)))) (= |old(~waterLevel~0)| ~waterLevel~0))) Eliminated clause: (exists ((|old(~methAndRunningLastTime~0)| Int)) (let ((.cse0 (= |old(~methAndRunningLastTime~0)| 0))) (and (or (not .cse0) (= ~methAndRunningLastTime~0 0)) (let ((.cse1 (= ~pumpRunning~0 0)) (.cse2 (= 1 ~systemActive~0))) (or (and .cse1 .cse0 .cse2 (<= 1 ~waterLevel~0)) (and (not .cse1) (<= 2 ~waterLevel~0) .cse2)))))) [2024-10-14 03:08:36,567 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-14 03:08:36,571 WARN L155 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__highWaterSensor contained old-variable. Original clause: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= 1 ~systemActive~0) (= |old(~pumpRunning~0)| 0) (<= 1 ~waterLevel~0)) Eliminated clause: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= 1 ~systemActive~0) (<= 1 ~waterLevel~0)) [2024-10-14 03:08:36,577 WARN L155 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (and (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= 1 ~systemActive~0))) (or (and (not .cse0) .cse1 (<= 2 |old(~waterLevel~0)|)) (and .cse0 (= ~methAndRunningLastTime~0 0) .cse1 (<= 1 |old(~waterLevel~0)|)))) (= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= 1 ~systemActive~0))) (or (and .cse0 (= ~methAndRunningLastTime~0 0) .cse1 (<= 1 ~waterLevel~0)) (and (not .cse0) (<= 2 ~waterLevel~0) .cse1))) [2024-10-14 03:08:36,582 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 03:08:36 BoogieIcfgContainer [2024-10-14 03:08:36,582 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-14 03:08:36,583 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-14 03:08:36,583 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-14 03:08:36,583 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-14 03:08:36,584 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:08:31" (3/4) ... [2024-10-14 03:08:36,586 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-14 03:08:36,588 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-10-14 03:08:36,588 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-10-14 03:08:36,589 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-10-14 03:08:36,589 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-10-14 03:08:36,589 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2024-10-14 03:08:36,589 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-10-14 03:08:36,589 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-10-14 03:08:36,593 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 33 nodes and edges [2024-10-14 03:08:36,594 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-10-14 03:08:36,594 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-14 03:08:36,594 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-14 03:08:36,594 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-14 03:08:36,678 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-14 03:08:36,678 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-14 03:08:36,678 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-14 03:08:36,679 INFO L158 Benchmark]: Toolchain (without parser) took 6224.40ms. Allocated memory was 159.4MB in the beginning and 232.8MB in the end (delta: 73.4MB). Free memory was 124.6MB in the beginning and 136.7MB in the end (delta: -12.1MB). Peak memory consumption was 62.1MB. Max. memory is 16.1GB. [2024-10-14 03:08:36,679 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 121.6MB. Free memory is still 81.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 03:08:36,679 INFO L158 Benchmark]: CACSL2BoogieTranslator took 365.59ms. Allocated memory is still 159.4MB. Free memory was 124.3MB in the beginning and 103.6MB in the end (delta: 20.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-14 03:08:36,679 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.59ms. Allocated memory is still 159.4MB. Free memory was 103.6MB in the beginning and 101.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 03:08:36,679 INFO L158 Benchmark]: Boogie Preprocessor took 47.34ms. Allocated memory is still 159.4MB. Free memory was 101.2MB in the beginning and 98.2MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-14 03:08:36,679 INFO L158 Benchmark]: RCFGBuilder took 356.01ms. Allocated memory is still 159.4MB. Free memory was 98.2MB in the beginning and 74.0MB in the end (delta: 24.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-14 03:08:36,679 INFO L158 Benchmark]: TraceAbstraction took 5315.23ms. Allocated memory was 159.4MB in the beginning and 232.8MB in the end (delta: 73.4MB). Free memory was 73.1MB in the beginning and 144.0MB in the end (delta: -71.0MB). Peak memory consumption was 60.0MB. Max. memory is 16.1GB. [2024-10-14 03:08:36,680 INFO L158 Benchmark]: Witness Printer took 95.59ms. Allocated memory is still 232.8MB. Free memory was 144.0MB in the beginning and 136.7MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-14 03:08:36,681 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 121.6MB. Free memory is still 81.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 365.59ms. Allocated memory is still 159.4MB. Free memory was 124.3MB in the beginning and 103.6MB in the end (delta: 20.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.59ms. Allocated memory is still 159.4MB. Free memory was 103.6MB in the beginning and 101.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.34ms. Allocated memory is still 159.4MB. Free memory was 101.2MB in the beginning and 98.2MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 356.01ms. Allocated memory is still 159.4MB. Free memory was 98.2MB in the beginning and 74.0MB in the end (delta: 24.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 5315.23ms. Allocated memory was 159.4MB in the beginning and 232.8MB in the end (delta: 73.4MB). Free memory was 73.1MB in the beginning and 144.0MB in the end (delta: -71.0MB). Peak memory consumption was 60.0MB. Max. memory is 16.1GB. * Witness Printer took 95.59ms. Allocated memory is still 232.8MB. Free memory was 144.0MB in the beginning and 136.7MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] - GenericResultAtLocation [Line: 160]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [160] - GenericResultAtLocation [Line: 526]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [526] - GenericResultAtLocation [Line: 596]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [596] - GenericResultAtLocation [Line: 824]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [824] - GenericResultAtLocation [Line: 864]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [864] - GenericResultAtLocation [Line: 902]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [902] - GenericResultAtLocation [Line: 999]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [999] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * 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: 1004]: 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, 72 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.0s, OverallIterations: 12, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 920 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 896 mSDsluCounter, 1931 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1074 mSDsCounter, 214 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 997 IncrementalHoareTripleChecker+Invalid, 1211 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 214 mSolverCounterUnsat, 857 mSDtfsCounter, 997 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 398 GetRequests, 341 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=690occurred in iteration=10, InterpolantAutomatonStates: 56, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 12 MinimizatonAttempts, 112 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 753 NumberOfCodeBlocks, 753 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 738 ConstructedInterpolants, 0 QuantifiedInterpolants, 1178 SizeOfPredicates, 2 NumberOfNonLiveVariables, 891 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 15 InterpolantComputations, 12 PerfectInterpolantSequences, 198/206 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: 539]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 540]: Loop Invariant Derived loop invariant: (((((pumpRunning != 0) && (2 <= waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0)) || (((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 == systemActive)) && (splverifierCounter == 0)) && (1 <= waterLevel))) - InvariantResult [Line: 914]: Loop Invariant Derived loop invariant: 0 - ProcedureContractResult [Line: 629]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: ((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 == systemActive)) && (1 <= waterLevel)) Ensures: ((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 == systemActive)) && (1 <= waterLevel)) - ProcedureContractResult [Line: 84]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Requires: (((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 == systemActive)) && (1 <= waterLevel)) || (((pumpRunning != 0) && (2 <= waterLevel)) && (1 == systemActive))) Ensures: (((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 == systemActive)) && (1 <= waterLevel)) || (((pumpRunning != 0) && (2 <= waterLevel)) && (1 == systemActive))) - ProcedureContractResult [Line: 904]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: 0 - ProcedureContractResult [Line: 605]: Procedure Contract for timeShift Derived contract for procedure timeShift. Ensures: ((((((\old(pumpRunning) != 0) || (((methAndRunningLastTime == 0) && (2 <= waterLevel)) && (\old(waterLevel) == waterLevel))) || ((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (\old(waterLevel) == 1)) && (waterLevel == 1))) || (((pumpRunning != 0) && (2 <= waterLevel)) && (\old(waterLevel) == waterLevel))) && ((((\old(methAndRunningLastTime) == 0) && (1 == systemActive)) && (\old(pumpRunning) == 0)) || (((\old(pumpRunning) != 0) && (1 == systemActive)) && (2 <= \old(waterLevel))))) && ((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= waterLevel)) || (\old(pumpRunning) == 0))) - ProcedureContractResult [Line: 96]: Procedure Contract for isMethaneLevelCritical Derived contract for procedure isMethaneLevelCritical. Requires: ((((pumpRunning == 0) && (1 == systemActive)) && (1 <= waterLevel)) || (((methAndRunningLastTime == 0) && (2 <= waterLevel)) && (1 == systemActive))) Ensures: ((((pumpRunning == 0) && (1 == systemActive)) && (1 <= waterLevel)) || (((methAndRunningLastTime == 0) && (2 <= waterLevel)) && (1 == systemActive))) - ProcedureContractResult [Line: 637]: Procedure Contract for processEnvironment__wrappee__highWaterSensor Derived contract for procedure processEnvironment__wrappee__highWaterSensor. Requires: ((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 == systemActive)) && (1 <= waterLevel)) Ensures: ((((methAndRunningLastTime == 0) && (1 == systemActive)) && (\old(pumpRunning) == 0)) && ((1 < waterLevel) || ((pumpRunning == 0) && (waterLevel == 1)))) - ProcedureContractResult [Line: 72]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: (((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 == systemActive)) && (1 <= waterLevel)) || (((pumpRunning != 0) && (2 <= waterLevel)) && (1 == systemActive))) Ensures: ((((((pumpRunning != 0) && (2 <= \old(waterLevel))) || (((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= \old(waterLevel)))) && ((\old(waterLevel) < 2) || (\old(waterLevel) == waterLevel))) && (2 <= waterLevel)) && (1 == systemActive)) RESULT: Ultimate proved your program to be correct! [2024-10-14 03:08:36,704 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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