./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product64.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/product-lines/minepump_spec4_product64.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 0f3f23173af8ffbfd6ca2d826b937f078be2c112e64596739bc9740bb061a5d2 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 14:21:14,607 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 14:21:14,722 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 14:21:14,729 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 14:21:14,730 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 14:21:14,755 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 14:21:14,757 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 14:21:14,757 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 14:21:14,758 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 14:21:14,759 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 14:21:14,760 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 14:21:14,760 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 14:21:14,760 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 14:21:14,761 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 14:21:14,761 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 14:21:14,764 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 14:21:14,764 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 14:21:14,764 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 14:21:14,765 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 14:21:14,765 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 14:21:14,765 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 14:21:14,765 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 14:21:14,766 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 14:21:14,766 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 14:21:14,766 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 14:21:14,766 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 14:21:14,766 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 14:21:14,766 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 14:21:14,766 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 14:21:14,767 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 14:21:14,767 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 14:21:14,767 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 14:21:14,767 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:21:14,767 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 14:21:14,767 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 14:21:14,768 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 14:21:14,769 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 14:21:14,769 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 14:21:14,769 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 14:21:14,769 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 14:21:14,770 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 14:21:14,770 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 14:21:14,770 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f3f23173af8ffbfd6ca2d826b937f078be2c112e64596739bc9740bb061a5d2 [2024-11-18 14:21:15,005 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 14:21:15,044 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 14:21:15,048 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 14:21:15,049 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 14:21:15,049 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 14:21:15,050 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product64.cil.c [2024-11-18 14:21:16,809 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 14:21:17,095 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 14:21:17,095 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product64.cil.c [2024-11-18 14:21:17,116 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/817557a7f/b529df442ea34b7e878d1571db37864d/FLAG41b55b043 [2024-11-18 14:21:17,133 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/817557a7f/b529df442ea34b7e878d1571db37864d [2024-11-18 14:21:17,136 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 14:21:17,137 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 14:21:17,155 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 14:21:17,156 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 14:21:17,161 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 14:21:17,161 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:21:17" (1/1) ... [2024-11-18 14:21:17,162 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a4b8e6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:17, skipping insertion in model container [2024-11-18 14:21:17,163 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:21:17" (1/1) ... [2024-11-18 14:21:17,209 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 14:21:17,375 WARN L250 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_spec4_product64.cil.c[2897,2910] [2024-11-18 14:21:17,445 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:21:17,456 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 14:21:17,464 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [49] [2024-11-18 14:21:17,466 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [153] [2024-11-18 14:21:17,466 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [162] [2024-11-18 14:21:17,472 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [190] [2024-11-18 14:21:17,473 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [261] [2024-11-18 14:21:17,473 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [531] [2024-11-18 14:21:17,473 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [897] [2024-11-18 14:21:17,473 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1000] [2024-11-18 14:21:17,482 WARN L250 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_spec4_product64.cil.c[2897,2910] [2024-11-18 14:21:17,533 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:21:17,554 INFO L204 MainTranslator]: Completed translation [2024-11-18 14:21:17,554 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:17 WrapperNode [2024-11-18 14:21:17,554 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 14:21:17,555 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 14:21:17,555 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 14:21:17,555 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 14:21:17,561 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:17" (1/1) ... [2024-11-18 14:21:17,573 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:17" (1/1) ... [2024-11-18 14:21:17,606 INFO L138 Inliner]: procedures = 59, calls = 107, calls flagged for inlining = 26, calls inlined = 23, statements flattened = 244 [2024-11-18 14:21:17,607 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 14:21:17,608 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 14:21:17,608 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 14:21:17,608 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 14:21:17,619 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:17" (1/1) ... [2024-11-18 14:21:17,619 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:17" (1/1) ... [2024-11-18 14:21:17,622 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:17" (1/1) ... [2024-11-18 14:21:17,637 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]. [2024-11-18 14:21:17,637 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:17" (1/1) ... [2024-11-18 14:21:17,638 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:17" (1/1) ... [2024-11-18 14:21:17,642 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:17" (1/1) ... [2024-11-18 14:21:17,646 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:17" (1/1) ... [2024-11-18 14:21:17,649 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:17" (1/1) ... [2024-11-18 14:21:17,651 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:17" (1/1) ... [2024-11-18 14:21:17,653 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 14:21:17,654 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 14:21:17,654 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 14:21:17,655 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 14:21:17,655 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:17" (1/1) ... [2024-11-18 14:21:17,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:21:17,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:21:17,697 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) [2024-11-18 14:21:17,703 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 [2024-11-18 14:21:17,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 14:21:17,757 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-18 14:21:17,758 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-18 14:21:17,758 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-18 14:21:17,758 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-18 14:21:17,758 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-18 14:21:17,758 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-18 14:21:17,758 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-11-18 14:21:17,758 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-11-18 14:21:17,759 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-18 14:21:17,759 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-18 14:21:17,759 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2024-11-18 14:21:17,759 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2024-11-18 14:21:17,759 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2024-11-18 14:21:17,760 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2024-11-18 14:21:17,760 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-11-18 14:21:17,760 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-11-18 14:21:17,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 14:21:17,760 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-18 14:21:17,760 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-18 14:21:17,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 14:21:17,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 14:21:17,834 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 14:21:17,837 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 14:21:18,137 INFO L? ?]: Removed 53 outVars from TransFormulas that were not future-live. [2024-11-18 14:21:18,137 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 14:21:18,148 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 14:21:18,150 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-18 14:21:18,151 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:21:18 BoogieIcfgContainer [2024-11-18 14:21:18,151 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 14:21:18,153 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 14:21:18,154 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 14:21:18,156 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 14:21:18,157 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:21:17" (1/3) ... [2024-11-18 14:21:18,157 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c23cde1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:21:18, skipping insertion in model container [2024-11-18 14:21:18,158 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:17" (2/3) ... [2024-11-18 14:21:18,158 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c23cde1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:21:18, skipping insertion in model container [2024-11-18 14:21:18,158 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:21:18" (3/3) ... [2024-11-18 14:21:18,159 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product64.cil.c [2024-11-18 14:21:18,174 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 14:21:18,174 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 14:21:18,229 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 14:21:18,238 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;@28d0e570, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 14:21:18,239 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 14:21:18,243 INFO L276 IsEmpty]: Start isEmpty. Operand has 108 states, 80 states have (on average 1.375) internal successors, (110), 91 states have internal predecessors, (110), 17 states have call successors, (17), 9 states have call predecessors, (17), 9 states have return successors, (17), 12 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-18 14:21:18,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-18 14:21:18,250 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:21:18,251 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:21:18,251 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:21:18,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:21:18,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1842892420, now seen corresponding path program 1 times [2024-11-18 14:21:18,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:21:18,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887671177] [2024-11-18 14:21:18,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:21:18,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:21:18,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:21:18,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:21:18,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:21:18,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887671177] [2024-11-18 14:21:18,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887671177] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:21:18,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:21:18,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 14:21:18,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130298803] [2024-11-18 14:21:18,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:21:18,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 14:21:18,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:21:18,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 14:21:18,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 14:21:18,451 INFO L87 Difference]: Start difference. First operand has 108 states, 80 states have (on average 1.375) internal successors, (110), 91 states have internal predecessors, (110), 17 states have call successors, (17), 9 states have call predecessors, (17), 9 states have return successors, (17), 12 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:21:18,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:21:18,479 INFO L93 Difference]: Finished difference Result 208 states and 283 transitions. [2024-11-18 14:21:18,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 14:21:18,481 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-11-18 14:21:18,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:21:18,490 INFO L225 Difference]: With dead ends: 208 [2024-11-18 14:21:18,491 INFO L226 Difference]: Without dead ends: 99 [2024-11-18 14:21:18,494 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 14:21:18,496 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:21:18,498 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:21:18,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-11-18 14:21:18,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2024-11-18 14:21:18,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 73 states have (on average 1.3150684931506849) internal successors, (96), 83 states have internal predecessors, (96), 17 states have call successors, (17), 9 states have call predecessors, (17), 8 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-18 14:21:18,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 129 transitions. [2024-11-18 14:21:18,578 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 129 transitions. Word has length 19 [2024-11-18 14:21:18,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:21:18,579 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 129 transitions. [2024-11-18 14:21:18,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:21:18,580 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 129 transitions. [2024-11-18 14:21:18,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-18 14:21:18,581 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:21:18,581 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] [2024-11-18 14:21:18,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 14:21:18,586 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:21:18,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:21:18,587 INFO L85 PathProgramCache]: Analyzing trace with hash 750568636, now seen corresponding path program 1 times [2024-11-18 14:21:18,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:21:18,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791384852] [2024-11-18 14:21:18,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:21:18,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:21:18,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:21:18,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:21:18,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:21:18,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791384852] [2024-11-18 14:21:18,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791384852] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:21:18,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:21:18,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:21:18,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643509341] [2024-11-18 14:21:18,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:21:18,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:21:18,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:21:18,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:21:18,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:21:18,722 INFO L87 Difference]: Start difference. First operand 99 states and 129 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:21:18,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:21:18,735 INFO L93 Difference]: Finished difference Result 159 states and 207 transitions. [2024-11-18 14:21:18,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:21:18,735 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2024-11-18 14:21:18,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:21:18,740 INFO L225 Difference]: With dead ends: 159 [2024-11-18 14:21:18,740 INFO L226 Difference]: Without dead ends: 90 [2024-11-18 14:21:18,741 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:21:18,741 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 17 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:21:18,742 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 210 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:21:18,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-11-18 14:21:18,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2024-11-18 14:21:18,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 67 states have (on average 1.328358208955224) internal successors, (89), 77 states have internal predecessors, (89), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 9 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-18 14:21:18,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 117 transitions. [2024-11-18 14:21:18,750 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 117 transitions. Word has length 20 [2024-11-18 14:21:18,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:21:18,750 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 117 transitions. [2024-11-18 14:21:18,751 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:21:18,751 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 117 transitions. [2024-11-18 14:21:18,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-18 14:21:18,752 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:21:18,752 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] [2024-11-18 14:21:18,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 14:21:18,752 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:21:18,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:21:18,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1483068035, now seen corresponding path program 1 times [2024-11-18 14:21:18,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:21:18,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759822265] [2024-11-18 14:21:18,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:21:18,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:21:18,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:21:18,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:21:18,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:21:18,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759822265] [2024-11-18 14:21:18,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759822265] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:21:18,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:21:18,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:21:18,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566817248] [2024-11-18 14:21:18,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:21:18,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:21:18,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:21:18,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:21:18,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:21:18,864 INFO L87 Difference]: Start difference. First operand 90 states and 117 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:21:18,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:21:18,916 INFO L93 Difference]: Finished difference Result 211 states and 278 transitions. [2024-11-18 14:21:18,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:21:18,917 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-11-18 14:21:18,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:21:18,919 INFO L225 Difference]: With dead ends: 211 [2024-11-18 14:21:18,922 INFO L226 Difference]: Without dead ends: 128 [2024-11-18 14:21:18,922 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:21:18,923 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 110 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:21:18,924 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 419 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:21:18,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2024-11-18 14:21:18,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 125. [2024-11-18 14:21:18,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 94 states have (on average 1.351063829787234) internal successors, (127), 107 states have internal predecessors, (127), 18 states have call successors, (18), 12 states have call predecessors, (18), 12 states have return successors, (19), 12 states have call predecessors, (19), 18 states have call successors, (19) [2024-11-18 14:21:18,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 164 transitions. [2024-11-18 14:21:18,951 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 164 transitions. Word has length 25 [2024-11-18 14:21:18,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:21:18,952 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 164 transitions. [2024-11-18 14:21:18,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:21:18,952 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 164 transitions. [2024-11-18 14:21:18,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-18 14:21:18,953 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:21:18,955 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] [2024-11-18 14:21:18,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 14:21:18,955 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:21:18,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:21:18,956 INFO L85 PathProgramCache]: Analyzing trace with hash 417349686, now seen corresponding path program 1 times [2024-11-18 14:21:18,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:21:18,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070251873] [2024-11-18 14:21:18,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:21:18,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:21:18,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:21:19,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:21:19,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:21:19,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070251873] [2024-11-18 14:21:19,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070251873] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:21:19,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:21:19,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 14:21:19,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029691103] [2024-11-18 14:21:19,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:21:19,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 14:21:19,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:21:19,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 14:21:19,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:21:19,092 INFO L87 Difference]: Start difference. First operand 125 states and 164 transitions. Second operand has 8 states, 8 states have (on average 3.375) internal successors, (27), 7 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:21:19,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:21:19,303 INFO L93 Difference]: Finished difference Result 461 states and 649 transitions. [2024-11-18 14:21:19,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 14:21:19,303 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 7 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2024-11-18 14:21:19,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:21:19,309 INFO L225 Difference]: With dead ends: 461 [2024-11-18 14:21:19,309 INFO L226 Difference]: Without dead ends: 343 [2024-11-18 14:21:19,310 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-11-18 14:21:19,311 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 193 mSDsluCounter, 620 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 731 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:21:19,311 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 731 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:21:19,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2024-11-18 14:21:19,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 339. [2024-11-18 14:21:19,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 252 states have (on average 1.3333333333333333) internal successors, (336), 287 states have internal predecessors, (336), 52 states have call successors, (52), 34 states have call predecessors, (52), 34 states have return successors, (71), 34 states have call predecessors, (71), 52 states have call successors, (71) [2024-11-18 14:21:19,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 459 transitions. [2024-11-18 14:21:19,363 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 459 transitions. Word has length 28 [2024-11-18 14:21:19,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:21:19,364 INFO L471 AbstractCegarLoop]: Abstraction has 339 states and 459 transitions. [2024-11-18 14:21:19,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 7 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:21:19,364 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 459 transitions. [2024-11-18 14:21:19,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-18 14:21:19,366 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:21:19,366 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] [2024-11-18 14:21:19,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 14:21:19,367 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:21:19,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:21:19,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1384596677, now seen corresponding path program 1 times [2024-11-18 14:21:19,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:21:19,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534914572] [2024-11-18 14:21:19,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:21:19,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:21:19,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:21:19,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:21:19,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:21:19,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534914572] [2024-11-18 14:21:19,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534914572] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:21:19,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:21:19,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 14:21:19,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69884197] [2024-11-18 14:21:19,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:21:19,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:21:19,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:21:19,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:21:19,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:21:19,428 INFO L87 Difference]: Start difference. First operand 339 states and 459 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:21:19,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:21:19,502 INFO L93 Difference]: Finished difference Result 764 states and 1072 transitions. [2024-11-18 14:21:19,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:21:19,503 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2024-11-18 14:21:19,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:21:19,505 INFO L225 Difference]: With dead ends: 764 [2024-11-18 14:21:19,505 INFO L226 Difference]: Without dead ends: 432 [2024-11-18 14:21:19,507 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:21:19,508 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 68 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:21:19,508 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 185 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:21:19,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2024-11-18 14:21:19,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 427. [2024-11-18 14:21:19,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 326 states have (on average 1.2699386503067485) internal successors, (414), 354 states have internal predecessors, (414), 51 states have call successors, (51), 47 states have call predecessors, (51), 49 states have return successors, (96), 49 states have call predecessors, (96), 51 states have call successors, (96) [2024-11-18 14:21:19,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 561 transitions. [2024-11-18 14:21:19,537 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 561 transitions. Word has length 30 [2024-11-18 14:21:19,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:21:19,537 INFO L471 AbstractCegarLoop]: Abstraction has 427 states and 561 transitions. [2024-11-18 14:21:19,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:21:19,537 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 561 transitions. [2024-11-18 14:21:19,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-18 14:21:19,539 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:21:19,539 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-18 14:21:19,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 14:21:19,540 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:21:19,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:21:19,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1947892391, now seen corresponding path program 1 times [2024-11-18 14:21:19,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:21:19,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999986506] [2024-11-18 14:21:19,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:21:19,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:21:19,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:21:19,693 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-18 14:21:19,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:21:19,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999986506] [2024-11-18 14:21:19,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999986506] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:21:19,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1480267243] [2024-11-18 14:21:19,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:21:19,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:21:19,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:21:19,697 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) [2024-11-18 14:21:19,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 14:21:19,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:21:19,773 INFO L255 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-18 14:21:19,779 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:21:20,043 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-18 14:21:20,044 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 14:21:20,284 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 16 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:21:20,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1480267243] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 14:21:20,285 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 14:21:20,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 7] total 14 [2024-11-18 14:21:20,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498619277] [2024-11-18 14:21:20,285 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 14:21:20,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-18 14:21:20,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:21:20,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-18 14:21:20,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2024-11-18 14:21:20,287 INFO L87 Difference]: Start difference. First operand 427 states and 561 transitions. Second operand has 14 states, 14 states have (on average 6.642857142857143) internal successors, (93), 13 states have internal predecessors, (93), 4 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-18 14:21:21,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:21:21,795 INFO L93 Difference]: Finished difference Result 1110 states and 1514 transitions. [2024-11-18 14:21:21,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2024-11-18 14:21:21,796 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.642857142857143) internal successors, (93), 13 states have internal predecessors, (93), 4 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 54 [2024-11-18 14:21:21,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:21:21,800 INFO L225 Difference]: With dead ends: 1110 [2024-11-18 14:21:21,800 INFO L226 Difference]: Without dead ends: 808 [2024-11-18 14:21:21,803 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 103 SyntacticMatches, 4 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1215 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=793, Invalid=3367, Unknown=0, NotChecked=0, Total=4160 [2024-11-18 14:21:21,804 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 971 mSDsluCounter, 778 mSDsCounter, 0 mSdLazyCounter, 1250 mSolverCounterSat, 453 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 977 SdHoareTripleChecker+Valid, 897 SdHoareTripleChecker+Invalid, 1703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 453 IncrementalHoareTripleChecker+Valid, 1250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-18 14:21:21,804 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [977 Valid, 897 Invalid, 1703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [453 Valid, 1250 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-18 14:21:21,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 808 states. [2024-11-18 14:21:21,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 808 to 723. [2024-11-18 14:21:21,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 723 states, 554 states have (on average 1.2527075812274369) internal successors, (694), 600 states have internal predecessors, (694), 79 states have call successors, (79), 69 states have call predecessors, (79), 89 states have return successors, (183), 85 states have call predecessors, (183), 79 states have call successors, (183) [2024-11-18 14:21:21,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 956 transitions. [2024-11-18 14:21:21,861 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 956 transitions. Word has length 54 [2024-11-18 14:21:21,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:21:21,861 INFO L471 AbstractCegarLoop]: Abstraction has 723 states and 956 transitions. [2024-11-18 14:21:21,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.642857142857143) internal successors, (93), 13 states have internal predecessors, (93), 4 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-18 14:21:21,862 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 956 transitions. [2024-11-18 14:21:21,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-18 14:21:21,866 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:21:21,866 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:21:21,882 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-18 14:21:22,067 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,SelfDestructingSolverStorable5 [2024-11-18 14:21:22,067 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:21:22,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:21:22,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1561750174, now seen corresponding path program 1 times [2024-11-18 14:21:22,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:21:22,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649107673] [2024-11-18 14:21:22,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:21:22,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:21:22,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:21:22,179 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 14:21:22,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:21:22,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649107673] [2024-11-18 14:21:22,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649107673] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:21:22,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1687268146] [2024-11-18 14:21:22,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:21:22,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:21:22,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:21:22,184 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) [2024-11-18 14:21:22,185 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-18 14:21:22,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:21:22,256 INFO L255 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-18 14:21:22,259 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:21:22,269 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 14:21:22,270 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:21:22,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1687268146] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:21:22,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:21:22,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2024-11-18 14:21:22,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530372577] [2024-11-18 14:21:22,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:21:22,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:21:22,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:21:22,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:21:22,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:21:22,272 INFO L87 Difference]: Start difference. First operand 723 states and 956 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:21:22,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:21:22,357 INFO L93 Difference]: Finished difference Result 1451 states and 2035 transitions. [2024-11-18 14:21:22,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:21:22,357 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 99 [2024-11-18 14:21:22,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:21:22,364 INFO L225 Difference]: With dead ends: 1451 [2024-11-18 14:21:22,364 INFO L226 Difference]: Without dead ends: 735 [2024-11-18 14:21:22,367 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:21:22,368 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 0 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:21:22,369 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 450 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:21:22,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2024-11-18 14:21:22,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 735. [2024-11-18 14:21:22,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 735 states, 566 states have (on average 1.2473498233215548) internal successors, (706), 612 states have internal predecessors, (706), 79 states have call successors, (79), 69 states have call predecessors, (79), 89 states have return successors, (183), 85 states have call predecessors, (183), 79 states have call successors, (183) [2024-11-18 14:21:22,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 968 transitions. [2024-11-18 14:21:22,419 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 968 transitions. Word has length 99 [2024-11-18 14:21:22,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:21:22,420 INFO L471 AbstractCegarLoop]: Abstraction has 735 states and 968 transitions. [2024-11-18 14:21:22,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:21:22,420 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 968 transitions. [2024-11-18 14:21:22,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-18 14:21:22,424 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:21:22,424 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:21:22,441 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-18 14:21:22,628 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,SelfDestructingSolverStorable6 [2024-11-18 14:21:22,630 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:21:22,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:21:22,631 INFO L85 PathProgramCache]: Analyzing trace with hash -734589481, now seen corresponding path program 1 times [2024-11-18 14:21:22,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:21:22,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301899669] [2024-11-18 14:21:22,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:21:22,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:21:22,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:21:22,689 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 14:21:22,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:21:22,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301899669] [2024-11-18 14:21:22,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301899669] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:21:22,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:21:22,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:21:22,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874061408] [2024-11-18 14:21:22,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:21:22,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:21:22,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:21:22,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:21:22,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:21:22,691 INFO L87 Difference]: Start difference. First operand 735 states and 968 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 4 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-18 14:21:22,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:21:22,766 INFO L93 Difference]: Finished difference Result 1473 states and 1939 transitions. [2024-11-18 14:21:22,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:21:22,767 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 4 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 102 [2024-11-18 14:21:22,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:21:22,771 INFO L225 Difference]: With dead ends: 1473 [2024-11-18 14:21:22,771 INFO L226 Difference]: Without dead ends: 745 [2024-11-18 14:21:22,773 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:21:22,773 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 138 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:21:22,773 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 263 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:21:22,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2024-11-18 14:21:22,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 735. [2024-11-18 14:21:22,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 735 states, 566 states have (on average 1.2385159010600706) internal successors, (701), 612 states have internal predecessors, (701), 79 states have call successors, (79), 69 states have call predecessors, (79), 89 states have return successors, (169), 85 states have call predecessors, (169), 79 states have call successors, (169) [2024-11-18 14:21:22,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 949 transitions. [2024-11-18 14:21:22,802 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 949 transitions. Word has length 102 [2024-11-18 14:21:22,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:21:22,802 INFO L471 AbstractCegarLoop]: Abstraction has 735 states and 949 transitions. [2024-11-18 14:21:22,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 4 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-18 14:21:22,802 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 949 transitions. [2024-11-18 14:21:22,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-18 14:21:22,806 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:21:22,806 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:21:22,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 14:21:22,807 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:21:22,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:21:22,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1765866468, now seen corresponding path program 1 times [2024-11-18 14:21:22,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:21:22,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865880519] [2024-11-18 14:21:22,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:21:22,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:21:22,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:21:22,889 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 14:21:22,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:21:22,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865880519] [2024-11-18 14:21:22,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865880519] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:21:22,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [889874081] [2024-11-18 14:21:22,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:21:22,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:21:22,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:21:22,892 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) [2024-11-18 14:21:22,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-18 14:21:22,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:21:22,962 INFO L255 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-18 14:21:22,964 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:21:22,983 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 14:21:22,983 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:21:22,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [889874081] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:21:22,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:21:22,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-11-18 14:21:22,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899098305] [2024-11-18 14:21:22,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:21:22,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:21:22,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:21:22,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:21:22,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:21:22,986 INFO L87 Difference]: Start difference. First operand 735 states and 949 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:21:23,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:21:23,018 INFO L93 Difference]: Finished difference Result 1362 states and 1803 transitions. [2024-11-18 14:21:23,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:21:23,018 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 99 [2024-11-18 14:21:23,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:21:23,022 INFO L225 Difference]: With dead ends: 1362 [2024-11-18 14:21:23,022 INFO L226 Difference]: Without dead ends: 634 [2024-11-18 14:21:23,024 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:21:23,025 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 0 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:21:23,025 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 339 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:21:23,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2024-11-18 14:21:23,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 634. [2024-11-18 14:21:23,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 634 states, 487 states have (on average 1.2361396303901437) internal successors, (602), 525 states have internal predecessors, (602), 72 states have call successors, (72), 62 states have call predecessors, (72), 74 states have return successors, (138), 73 states have call predecessors, (138), 72 states have call successors, (138) [2024-11-18 14:21:23,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 812 transitions. [2024-11-18 14:21:23,074 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 812 transitions. Word has length 99 [2024-11-18 14:21:23,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:21:23,075 INFO L471 AbstractCegarLoop]: Abstraction has 634 states and 812 transitions. [2024-11-18 14:21:23,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:21:23,076 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 812 transitions. [2024-11-18 14:21:23,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-18 14:21:23,077 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:21:23,077 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:21:23,094 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-18 14:21:23,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:21:23,282 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:21:23,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:21:23,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1661930304, now seen corresponding path program 1 times [2024-11-18 14:21:23,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:21:23,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554550819] [2024-11-18 14:21:23,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:21:23,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:21:23,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:21:23,409 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 13 proven. 8 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-18 14:21:23,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:21:23,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554550819] [2024-11-18 14:21:23,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554550819] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:21:23,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [238635465] [2024-11-18 14:21:23,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:21:23,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:21:23,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:21:23,412 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:21:23,413 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-18 14:21:23,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:21:23,499 INFO L255 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-18 14:21:23,507 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:21:23,613 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:21:23,613 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 14:21:23,732 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 13 proven. 8 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-18 14:21:23,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [238635465] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 14:21:23,736 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 14:21:23,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 6 [2024-11-18 14:21:23,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612163534] [2024-11-18 14:21:23,736 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 14:21:23,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:21:23,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:21:23,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:21:23,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:21:23,738 INFO L87 Difference]: Start difference. First operand 634 states and 812 transitions. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-18 14:21:23,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:21:23,905 INFO L93 Difference]: Finished difference Result 1174 states and 1525 transitions. [2024-11-18 14:21:23,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 14:21:23,913 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 103 [2024-11-18 14:21:23,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:21:23,919 INFO L225 Difference]: With dead ends: 1174 [2024-11-18 14:21:23,923 INFO L226 Difference]: Without dead ends: 624 [2024-11-18 14:21:23,925 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 202 SyntacticMatches, 5 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-18 14:21:23,928 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 108 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:21:23,928 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 648 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:21:23,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2024-11-18 14:21:23,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 576. [2024-11-18 14:21:23,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 439 states have (on average 1.216400911161731) internal successors, (534), 475 states have internal predecessors, (534), 67 states have call successors, (67), 57 states have call predecessors, (67), 69 states have return successors, (133), 65 states have call predecessors, (133), 67 states have call successors, (133) [2024-11-18 14:21:23,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 734 transitions. [2024-11-18 14:21:23,988 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 734 transitions. Word has length 103 [2024-11-18 14:21:23,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:21:23,989 INFO L471 AbstractCegarLoop]: Abstraction has 576 states and 734 transitions. [2024-11-18 14:21:23,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-18 14:21:23,993 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 734 transitions. [2024-11-18 14:21:23,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-18 14:21:23,997 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:21:23,997 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-18 14:21:24,036 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-18 14:21:24,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:21:24,198 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:21:24,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:21:24,201 INFO L85 PathProgramCache]: Analyzing trace with hash 745596908, now seen corresponding path program 2 times [2024-11-18 14:21:24,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:21:24,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210499007] [2024-11-18 14:21:24,201 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-18 14:21:24,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:21:24,248 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-18 14:21:24,248 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-18 14:21:24,599 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 49 proven. 8 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-18 14:21:24,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:21:24,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210499007] [2024-11-18 14:21:24,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210499007] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:21:24,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1159318306] [2024-11-18 14:21:24,599 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-18 14:21:24,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:21:24,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:21:24,601 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:21:24,602 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-18 14:21:24,685 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-18 14:21:24,686 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-18 14:21:24,687 INFO L255 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-18 14:21:24,690 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:21:24,806 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 67 proven. 19 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-18 14:21:24,806 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 14:21:24,976 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 47 proven. 10 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-18 14:21:24,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1159318306] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 14:21:24,977 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 14:21:24,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 8] total 11 [2024-11-18 14:21:24,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707832987] [2024-11-18 14:21:24,977 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 14:21:24,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-18 14:21:24,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:21:24,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-18 14:21:24,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-18 14:21:24,978 INFO L87 Difference]: Start difference. First operand 576 states and 734 transitions. Second operand has 11 states, 11 states have (on average 13.545454545454545) internal successors, (149), 11 states have internal predecessors, (149), 5 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) [2024-11-18 14:21:25,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:21:25,299 INFO L93 Difference]: Finished difference Result 1597 states and 2165 transitions. [2024-11-18 14:21:25,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-18 14:21:25,299 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 13.545454545454545) internal successors, (149), 11 states have internal predecessors, (149), 5 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) Word has length 150 [2024-11-18 14:21:25,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:21:25,305 INFO L225 Difference]: With dead ends: 1597 [2024-11-18 14:21:25,305 INFO L226 Difference]: Without dead ends: 1104 [2024-11-18 14:21:25,307 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 290 SyntacticMatches, 5 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=87, Invalid=255, Unknown=0, NotChecked=0, Total=342 [2024-11-18 14:21:25,307 INFO L432 NwaCegarLoop]: 280 mSDtfsCounter, 233 mSDsluCounter, 1463 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 1743 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 14:21:25,307 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 1743 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 14:21:25,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1104 states. [2024-11-18 14:21:25,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1104 to 1095. [2024-11-18 14:21:25,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1095 states, 834 states have (on average 1.2194244604316546) internal successors, (1017), 894 states have internal predecessors, (1017), 132 states have call successors, (132), 117 states have call predecessors, (132), 128 states have return successors, (227), 123 states have call predecessors, (227), 132 states have call successors, (227) [2024-11-18 14:21:25,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1095 states to 1095 states and 1376 transitions. [2024-11-18 14:21:25,384 INFO L78 Accepts]: Start accepts. Automaton has 1095 states and 1376 transitions. Word has length 150 [2024-11-18 14:21:25,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:21:25,384 INFO L471 AbstractCegarLoop]: Abstraction has 1095 states and 1376 transitions. [2024-11-18 14:21:25,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 13.545454545454545) internal successors, (149), 11 states have internal predecessors, (149), 5 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) [2024-11-18 14:21:25,385 INFO L276 IsEmpty]: Start isEmpty. Operand 1095 states and 1376 transitions. [2024-11-18 14:21:25,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-18 14:21:25,387 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:21:25,388 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-18 14:21:25,400 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-18 14:21:25,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-18 14:21:25,589 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:21:25,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:21:25,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1699537066, now seen corresponding path program 1 times [2024-11-18 14:21:25,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:21:25,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905643404] [2024-11-18 14:21:25,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:21:25,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:21:25,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:21:25,693 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 45 proven. 6 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-18 14:21:25,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:21:25,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905643404] [2024-11-18 14:21:25,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905643404] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:21:25,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1832942457] [2024-11-18 14:21:25,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:21:25,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:21:25,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:21:25,695 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:21:25,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-18 14:21:25,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:21:25,797 INFO L255 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-18 14:21:25,801 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:21:25,826 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-18 14:21:25,826 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:21:25,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1832942457] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:21:25,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:21:25,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-18 14:21:25,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137698421] [2024-11-18 14:21:25,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:21:25,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:21:25,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:21:25,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:21:25,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:21:25,828 INFO L87 Difference]: Start difference. First operand 1095 states and 1376 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-18 14:21:25,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:21:25,868 INFO L93 Difference]: Finished difference Result 1471 states and 1838 transitions. [2024-11-18 14:21:25,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:21:25,868 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 150 [2024-11-18 14:21:25,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:21:25,870 INFO L225 Difference]: With dead ends: 1471 [2024-11-18 14:21:25,870 INFO L226 Difference]: Without dead ends: 0 [2024-11-18 14:21:25,872 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:21:25,873 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 0 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:21:25,873 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 432 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:21:25,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-18 14:21:25,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-18 14:21:25,874 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) [2024-11-18 14:21:25,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-18 14:21:25,874 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 150 [2024-11-18 14:21:25,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:21:25,875 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-18 14:21:25,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-18 14:21:25,875 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-18 14:21:25,875 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-18 14:21:25,877 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-18 14:21:25,891 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-18 14:21:26,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:21:26,081 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:21:26,083 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-18 14:21:27,726 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-18 14:21:27,738 WARN L156 FloydHoareUtils]: Requires clause for deactivatePump contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 ~waterLevel~0) (not (= 0 ~systemActive~0))) Eliminated clause: (and (<= 1 ~waterLevel~0) (not (= 0 ~systemActive~0))) [2024-11-18 14:21:27,753 WARN L156 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (or (not (= |old(~waterLevel~0)| 1)) (= ~waterLevel~0 1)) (or (and (= |old(~pumpRunning~0)| 0) (<= 1 |old(~waterLevel~0)|)) (and (<= 2 |old(~waterLevel~0)|) (not (= 0 ~systemActive~0)))) (<= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (exists ((|old(~waterLevel~0)| Int)) (and (or (and (<= 2 |old(~waterLevel~0)|) (not (= 0 ~systemActive~0))) (and (= ~pumpRunning~0 0) (<= 1 |old(~waterLevel~0)|))) (or (not (= |old(~waterLevel~0)| 1)) (= ~waterLevel~0 1)) (<= |old(~waterLevel~0)| ~waterLevel~0))) [2024-11-18 14:21:27,756 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-18 14:21:27,759 WARN L156 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__highWaterSensor contained old-variable. Original clause: (and (= ~pumpRunning~0 0) (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse1 (not (= 0 ~systemActive~0)))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and .cse0 (= ~waterLevel~0 1) .cse1)))) Eliminated clause: (and (= ~pumpRunning~0 0) (let ((.cse0 (not (= 0 ~systemActive~0)))) (or (and (= ~waterLevel~0 1) .cse0) (and (<= 2 ~waterLevel~0) .cse0)))) [2024-11-18 14:21:27,762 WARN L156 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (and (or (and (<= 2 |old(~waterLevel~0)|) (not (= 0 ~systemActive~0))) (and (= ~pumpRunning~0 0) (<= 1 |old(~waterLevel~0)|))) (or (not (= |old(~waterLevel~0)| 1)) (= ~waterLevel~0 1)) (<= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (exists ((|old(~waterLevel~0)| Int)) (and (or (and (<= 2 |old(~waterLevel~0)|) (not (= 0 ~systemActive~0))) (and (= ~pumpRunning~0 0) (<= 1 |old(~waterLevel~0)|))) (or (not (= |old(~waterLevel~0)| 1)) (= ~waterLevel~0 1)) (<= |old(~waterLevel~0)| ~waterLevel~0))) [2024-11-18 14:21:27,763 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-18 14:21:27,764 WARN L156 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__methaneQuery contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 ~waterLevel~0) (not (= 0 ~systemActive~0))) Eliminated clause: (and (<= 1 ~waterLevel~0) (not (= 0 ~systemActive~0))) [2024-11-18 14:21:27,766 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 02:21:27 BoogieIcfgContainer [2024-11-18 14:21:27,766 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-18 14:21:27,766 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-18 14:21:27,766 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-18 14:21:27,766 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-18 14:21:27,767 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:21:18" (3/4) ... [2024-11-18 14:21:27,769 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-18 14:21:27,771 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-11-18 14:21:27,772 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-18 14:21:27,772 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-18 14:21:27,772 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-18 14:21:27,772 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-18 14:21:27,772 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-11-18 14:21:27,772 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-18 14:21:27,772 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2024-11-18 14:21:27,772 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2024-11-18 14:21:27,777 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2024-11-18 14:21:27,777 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-18 14:21:27,778 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-18 14:21:27,778 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-18 14:21:27,778 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-18 14:21:27,888 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-18 14:21:27,889 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-18 14:21:27,889 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-18 14:21:27,889 INFO L158 Benchmark]: Toolchain (without parser) took 10751.71ms. Allocated memory was 245.4MB in the beginning and 383.8MB in the end (delta: 138.4MB). Free memory was 211.5MB in the beginning and 271.6MB in the end (delta: -60.1MB). Peak memory consumption was 79.3MB. Max. memory is 16.1GB. [2024-11-18 14:21:27,889 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 132.1MB. Free memory was 93.8MB in the beginning and 93.7MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 14:21:27,889 INFO L158 Benchmark]: CACSL2BoogieTranslator took 399.37ms. Allocated memory is still 245.4MB. Free memory was 216.0MB in the beginning and 194.1MB in the end (delta: 22.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-18 14:21:27,890 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.00ms. Allocated memory is still 245.4MB. Free memory was 194.1MB in the beginning and 192.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 14:21:27,890 INFO L158 Benchmark]: Boogie Preprocessor took 45.83ms. Allocated memory is still 245.4MB. Free memory was 192.0MB in the beginning and 189.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 14:21:27,890 INFO L158 Benchmark]: RCFGBuilder took 496.58ms. Allocated memory is still 245.4MB. Free memory was 189.9MB in the beginning and 168.9MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-18 14:21:27,890 INFO L158 Benchmark]: TraceAbstraction took 9613.18ms. Allocated memory was 245.4MB in the beginning and 383.8MB in the end (delta: 138.4MB). Free memory was 168.9MB in the beginning and 279.0MB in the end (delta: -110.1MB). Peak memory consumption was 181.3MB. Max. memory is 16.1GB. [2024-11-18 14:21:27,890 INFO L158 Benchmark]: Witness Printer took 122.47ms. Allocated memory is still 383.8MB. Free memory was 279.0MB in the beginning and 271.6MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-18 14:21:27,891 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 132.1MB. Free memory was 93.8MB in the beginning and 93.7MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 399.37ms. Allocated memory is still 245.4MB. Free memory was 216.0MB in the beginning and 194.1MB in the end (delta: 22.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.00ms. Allocated memory is still 245.4MB. Free memory was 194.1MB in the beginning and 192.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.83ms. Allocated memory is still 245.4MB. Free memory was 192.0MB in the beginning and 189.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 496.58ms. Allocated memory is still 245.4MB. Free memory was 189.9MB in the beginning and 168.9MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 9613.18ms. Allocated memory was 245.4MB in the beginning and 383.8MB in the end (delta: 138.4MB). Free memory was 168.9MB in the beginning and 279.0MB in the end (delta: -110.1MB). Peak memory consumption was 181.3MB. Max. memory is 16.1GB. * Witness Printer took 122.47ms. Allocated memory is still 383.8MB. Free memory was 279.0MB in the beginning and 271.6MB 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,"Test.i","") [49] - GenericResultAtLocation [Line: 153]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [153] - GenericResultAtLocation [Line: 162]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [162] - GenericResultAtLocation [Line: 190]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [190] - GenericResultAtLocation [Line: 261]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [261] - GenericResultAtLocation [Line: 531]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [531] - GenericResultAtLocation [Line: 897]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [897] - GenericResultAtLocation [Line: 1000]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1000] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - 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: 158]: 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 10 procedures, 108 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.9s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1848 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1838 mSDsluCounter, 6455 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4801 mSDsCounter, 507 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1996 IncrementalHoareTripleChecker+Invalid, 2503 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 507 mSolverCounterUnsat, 1654 mSDtfsCounter, 1996 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1094 GetRequests, 956 SyntacticMatches, 14 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1294 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1095occurred in iteration=11, InterpolantAutomatonStates: 121, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 12 MinimizatonAttempts, 164 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 1534 NumberOfCodeBlocks, 1534 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 1820 ConstructedInterpolants, 0 QuantifiedInterpolants, 3036 SizeOfPredicates, 4 NumberOfNonLiveVariables, 2091 ConjunctsInSsa, 49 ConjunctsInUnsatCore, 21 InterpolantComputations, 9 PerfectInterpolantSequences, 724/813 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: 202]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 203]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0) && (splverifierCounter == 0)) && (1 <= waterLevel)) || (((2 <= waterLevel) && (splverifierCounter == 0)) && (0 != systemActive))) - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 0 - ProcedureContractResult [Line: 406]: Procedure Contract for deactivatePump Derived contract for procedure deactivatePump. Requires: ((1 <= waterLevel) && (0 != systemActive)) Ensures: ((((pumpRunning == 0) && (1 <= waterLevel)) && (0 != systemActive)) && (((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (systemActive == \old(systemActive))) && (head == \old(head))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical)))) - ProcedureContractResult [Line: 296]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: (((pumpRunning == 0) && (1 <= waterLevel)) && (0 != systemActive)) Ensures: ((((pumpRunning == 0) && (1 <= waterLevel)) && (0 != systemActive)) && ((((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical)))) - ProcedureContractResult [Line: 924]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Requires: (((2 <= waterLevel) && (0 != systemActive)) || ((pumpRunning == 0) && (1 <= waterLevel))) Ensures: ((((2 <= waterLevel) && (0 != systemActive)) || ((pumpRunning == 0) && (1 <= waterLevel))) && (((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head))) && (waterLevel == \old(waterLevel)))) - ProcedureContractResult [Line: 272]: Procedure Contract for timeShift Derived contract for procedure timeShift. Ensures: (((((((\old(waterLevel) != 1) || (waterLevel == 1)) && ((1 < waterLevel) || ((pumpRunning == 0) && (waterLevel == 1)))) && (((\old(pumpRunning) == 0) && (1 <= \old(waterLevel))) || ((2 <= \old(waterLevel)) && (0 != systemActive)))) && ((pumpRunning == 0) || (0 != systemActive))) && ((\old(pumpRunning) != 0) || (\old(waterLevel) < ((long long) waterLevel + 1)))) && ((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (systemActive == \old(systemActive))) && (head == \old(head))) && (methaneLevelCritical == \old(methaneLevelCritical)))) - ProcedureContractResult [Line: 52]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: (0 && ((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (systemActive == \old(systemActive))) && (head == \old(head))) && (methaneLevelCritical == \old(methaneLevelCritical)))) - ProcedureContractResult [Line: 304]: Procedure Contract for processEnvironment__wrappee__highWaterSensor Derived contract for procedure processEnvironment__wrappee__highWaterSensor. Requires: ((pumpRunning == 0) && (((waterLevel == 1) && (0 != systemActive)) || ((2 <= waterLevel) && (0 != systemActive)))) Ensures: ((((waterLevel != 1) || (pumpRunning == 0)) && ((((2 <= waterLevel) && (\old(pumpRunning) == 0)) && (0 != systemActive)) || (((\old(pumpRunning) == 0) && (waterLevel == 1)) && (0 != systemActive)))) && (((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (systemActive == \old(systemActive))) && (head == \old(head))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical)))) - ProcedureContractResult [Line: 912]: Procedure Contract for waterRise Derived contract for procedure waterRise. Ensures: ((((((2 <= \old(waterLevel)) && (0 != systemActive)) || ((pumpRunning == 0) && (1 <= \old(waterLevel)))) && (2 <= waterLevel)) && (\old(waterLevel) <= waterLevel)) && (((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head))) && (methaneLevelCritical == \old(methaneLevelCritical)))) - ProcedureContractResult [Line: 330]: Procedure Contract for processEnvironment__wrappee__methaneQuery Derived contract for procedure processEnvironment__wrappee__methaneQuery. Requires: ((1 <= waterLevel) && (0 != systemActive)) Ensures: ((((1 <= waterLevel) && ((pumpRunning == 0) || (1 < waterLevel))) && (0 != systemActive)) && (((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (systemActive == \old(systemActive))) && (head == \old(head))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical)))) - ProcedureContractResult [Line: 414]: Procedure Contract for isMethaneAlarm Derived contract for procedure isMethaneAlarm. Requires: ((1 <= waterLevel) && (0 != systemActive)) Ensures: (((1 <= waterLevel) && (0 != systemActive)) && ((((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical)))) RESULT: Ultimate proved your program to be correct! [2024-11-18 14:21:27,925 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