./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product47.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product47.cil.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 303db4082dd8b7a60cb4b5043655f09159321046818373497160cd54b8948d04 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 03:01:21,252 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 03:01:21,355 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 03:01:21,361 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 03:01:21,363 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 03:01:21,386 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 03:01:21,386 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 03:01:21,387 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 03:01:21,387 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 03:01:21,388 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 03:01:21,388 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 03:01:21,388 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 03:01:21,389 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 03:01:21,389 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 03:01:21,390 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 03:01:21,390 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 03:01:21,391 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 03:01:21,391 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 03:01:21,391 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 03:01:21,392 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 03:01:21,392 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 03:01:21,392 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 03:01:21,393 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 03:01:21,393 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 03:01:21,393 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 03:01:21,393 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 03:01:21,394 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 03:01:21,394 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 03:01:21,394 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 03:01:21,394 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 03:01:21,394 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 03:01:21,395 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 03:01:21,395 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 03:01:21,395 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 03:01:21,396 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 03:01:21,396 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 03:01:21,396 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 03:01:21,400 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 03:01:21,400 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 03:01:21,401 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 03:01:21,401 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 03:01:21,401 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 03:01:21,402 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 303db4082dd8b7a60cb4b5043655f09159321046818373497160cd54b8948d04 [2024-10-11 03:01:21,669 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 03:01:21,698 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 03:01:21,701 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 03:01:21,702 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 03:01:21,703 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 03:01:21,704 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product47.cil.c [2024-10-11 03:01:23,188 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 03:01:23,426 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 03:01:23,427 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product47.cil.c [2024-10-11 03:01:23,444 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/650c2abba/1ad2668f78324fd7bbddfb097eb475ba/FLAG11ce62d4a [2024-10-11 03:01:23,459 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/650c2abba/1ad2668f78324fd7bbddfb097eb475ba [2024-10-11 03:01:23,462 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 03:01:23,464 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 03:01:23,465 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 03:01:23,465 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 03:01:23,477 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 03:01:23,478 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:01:23" (1/1) ... [2024-10-11 03:01:23,479 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b4bb0dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:01:23, skipping insertion in model container [2024-10-11 03:01:23,480 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:01:23" (1/1) ... [2024-10-11 03:01:23,529 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 03:01:23,724 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product47.cil.c[1605,1618] [2024-10-11 03:01:23,877 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 03:01:23,889 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 03:01:23,897 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] [2024-10-11 03:01:23,899 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [58] [2024-10-11 03:01:23,899 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [283] [2024-10-11 03:01:23,900 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [353] [2024-10-11 03:01:23,900 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [454] [2024-10-11 03:01:23,900 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [820] [2024-10-11 03:01:23,900 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [855] [2024-10-11 03:01:23,901 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [905] [2024-10-11 03:01:23,904 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product47.cil.c[1605,1618] [2024-10-11 03:01:23,956 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 03:01:23,992 INFO L204 MainTranslator]: Completed translation [2024-10-11 03:01:23,992 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:01:23 WrapperNode [2024-10-11 03:01:23,992 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 03:01:23,994 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 03:01:23,994 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 03:01:23,994 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 03:01:24,001 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:01:23" (1/1) ... [2024-10-11 03:01:24,020 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:01:23" (1/1) ... [2024-10-11 03:01:24,046 INFO L138 Inliner]: procedures = 57, calls = 104, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 214 [2024-10-11 03:01:24,047 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 03:01:24,048 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 03:01:24,048 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 03:01:24,048 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 03:01:24,061 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:01:23" (1/1) ... [2024-10-11 03:01:24,062 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:01:23" (1/1) ... [2024-10-11 03:01:24,065 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:01:23" (1/1) ... [2024-10-11 03:01:24,084 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-11 03:01:24,085 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:01:23" (1/1) ... [2024-10-11 03:01:24,085 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:01:23" (1/1) ... [2024-10-11 03:01:24,091 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:01:23" (1/1) ... [2024-10-11 03:01:24,102 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:01:23" (1/1) ... [2024-10-11 03:01:24,103 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:01:23" (1/1) ... [2024-10-11 03:01:24,104 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:01:23" (1/1) ... [2024-10-11 03:01:24,107 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 03:01:24,108 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 03:01:24,108 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 03:01:24,108 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 03:01:24,109 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:01:23" (1/1) ... [2024-10-11 03:01:24,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 03:01:24,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:01:24,153 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 03:01:24,157 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 03:01:24,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 03:01:24,216 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-10-11 03:01:24,216 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-10-11 03:01:24,216 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-10-11 03:01:24,216 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-10-11 03:01:24,217 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-10-11 03:01:24,217 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-10-11 03:01:24,217 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-10-11 03:01:24,217 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-10-11 03:01:24,217 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2024-10-11 03:01:24,217 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2024-10-11 03:01:24,217 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2024-10-11 03:01:24,218 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2024-10-11 03:01:24,218 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2024-10-11 03:01:24,218 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2024-10-11 03:01:24,218 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-10-11 03:01:24,219 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-10-11 03:01:24,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 03:01:24,219 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-10-11 03:01:24,219 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-10-11 03:01:24,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 03:01:24,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 03:01:24,315 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 03:01:24,317 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 03:01:24,660 INFO L? ?]: Removed 43 outVars from TransFormulas that were not future-live. [2024-10-11 03:01:24,661 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 03:01:24,732 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 03:01:24,735 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-11 03:01:24,736 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:01:24 BoogieIcfgContainer [2024-10-11 03:01:24,736 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 03:01:24,738 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 03:01:24,739 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 03:01:24,742 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 03:01:24,742 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 03:01:23" (1/3) ... [2024-10-11 03:01:24,743 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cafd49a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:01:24, skipping insertion in model container [2024-10-11 03:01:24,743 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:01:23" (2/3) ... [2024-10-11 03:01:24,743 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cafd49a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:01:24, skipping insertion in model container [2024-10-11 03:01:24,743 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:01:24" (3/3) ... [2024-10-11 03:01:24,744 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product47.cil.c [2024-10-11 03:01:24,764 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 03:01:24,764 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 03:01:24,840 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 03:01:24,849 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;@1c453911, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 03:01:24,851 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 03:01:24,856 INFO L276 IsEmpty]: Start isEmpty. Operand has 83 states, 56 states have (on average 1.5) internal successors, (84), 65 states have internal predecessors, (84), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-11 03:01:24,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-10-11 03:01:24,866 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:01:24,867 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:01:24,868 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:01:24,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:01:24,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1956255824, now seen corresponding path program 1 times [2024-10-11 03:01:24,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:01:24,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568226186] [2024-10-11 03:01:24,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:01:24,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:01:25,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:25,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 03:01:25,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:25,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-11 03:01:25,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:25,076 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 03:01:25,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:01:25,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568226186] [2024-10-11 03:01:25,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568226186] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:01:25,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:01:25,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 03:01:25,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819655528] [2024-10-11 03:01:25,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:01:25,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 03:01:25,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:01:25,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 03:01:25,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 03:01:25,113 INFO L87 Difference]: Start difference. First operand has 83 states, 56 states have (on average 1.5) internal successors, (84), 65 states have internal predecessors, (84), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 03:01:25,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:01:25,181 INFO L93 Difference]: Finished difference Result 164 states and 233 transitions. [2024-10-11 03:01:25,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 03:01:25,184 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2024-10-11 03:01:25,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:01:25,196 INFO L225 Difference]: With dead ends: 164 [2024-10-11 03:01:25,196 INFO L226 Difference]: Without dead ends: 78 [2024-10-11 03:01:25,199 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 03:01:25,203 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:01:25,208 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 96 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:01:25,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-10-11 03:01:25,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2024-10-11 03:01:25,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 53 states have (on average 1.3962264150943395) internal successors, (74), 61 states have internal predecessors, (74), 16 states have call successors, (16), 9 states have call predecessors, (16), 8 states have return successors, (15), 12 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-11 03:01:25,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 105 transitions. [2024-10-11 03:01:25,308 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 105 transitions. Word has length 22 [2024-10-11 03:01:25,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:01:25,309 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 105 transitions. [2024-10-11 03:01:25,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 03:01:25,309 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 105 transitions. [2024-10-11 03:01:25,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-10-11 03:01:25,311 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:01:25,311 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:01:25,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 03:01:25,312 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:01:25,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:01:25,312 INFO L85 PathProgramCache]: Analyzing trace with hash 497041587, now seen corresponding path program 1 times [2024-10-11 03:01:25,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:01:25,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417589181] [2024-10-11 03:01:25,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:01:25,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:01:25,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:25,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 03:01:25,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:25,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-11 03:01:25,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:25,436 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 03:01:25,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:01:25,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417589181] [2024-10-11 03:01:25,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417589181] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:01:25,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:01:25,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:01:25,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113053144] [2024-10-11 03:01:25,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:01:25,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:01:25,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:01:25,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:01:25,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:01:25,441 INFO L87 Difference]: Start difference. First operand 78 states and 105 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 03:01:25,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:01:25,499 INFO L93 Difference]: Finished difference Result 126 states and 168 transitions. [2024-10-11 03:01:25,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:01:25,500 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2024-10-11 03:01:25,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:01:25,502 INFO L225 Difference]: With dead ends: 126 [2024-10-11 03:01:25,504 INFO L226 Difference]: Without dead ends: 70 [2024-10-11 03:01:25,504 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:01:25,507 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 14 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 147 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 [2024-10-11 03:01:25,507 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 147 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:01:25,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2024-10-11 03:01:25,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2024-10-11 03:01:25,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 48 states have (on average 1.4166666666666667) internal successors, (68), 56 states have internal predecessors, (68), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-11 03:01:25,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 94 transitions. [2024-10-11 03:01:25,519 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 94 transitions. Word has length 23 [2024-10-11 03:01:25,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:01:25,519 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 94 transitions. [2024-10-11 03:01:25,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 03:01:25,520 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 94 transitions. [2024-10-11 03:01:25,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-10-11 03:01:25,521 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:01:25,521 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:01:25,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 03:01:25,522 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:01:25,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:01:25,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1718675640, now seen corresponding path program 1 times [2024-10-11 03:01:25,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:01:25,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438434490] [2024-10-11 03:01:25,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:01:25,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:01:25,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:25,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-11 03:01:25,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:25,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 03:01:25,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:25,652 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 03:01:25,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:01:25,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438434490] [2024-10-11 03:01:25,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438434490] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:01:25,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:01:25,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:01:25,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642600598] [2024-10-11 03:01:25,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:01:25,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:01:25,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:01:25,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:01:25,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:01:25,656 INFO L87 Difference]: Start difference. First operand 70 states and 94 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-11 03:01:25,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:01:25,725 INFO L93 Difference]: Finished difference Result 206 states and 279 transitions. [2024-10-11 03:01:25,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:01:25,725 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 26 [2024-10-11 03:01:25,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:01:25,727 INFO L225 Difference]: With dead ends: 206 [2024-10-11 03:01:25,728 INFO L226 Difference]: Without dead ends: 138 [2024-10-11 03:01:25,728 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:01:25,729 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 78 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:01:25,730 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 173 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:01:25,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2024-10-11 03:01:25,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 135. [2024-10-11 03:01:25,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 92 states have (on average 1.423913043478261) internal successors, (131), 107 states have internal predecessors, (131), 26 states have call successors, (26), 16 states have call predecessors, (26), 16 states have return successors, (26), 19 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-11 03:01:25,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 183 transitions. [2024-10-11 03:01:25,759 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 183 transitions. Word has length 26 [2024-10-11 03:01:25,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:01:25,760 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 183 transitions. [2024-10-11 03:01:25,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-11 03:01:25,760 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 183 transitions. [2024-10-11 03:01:25,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-10-11 03:01:25,762 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:01:25,762 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:01:25,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 03:01:25,763 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:01:25,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:01:25,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1945094294, now seen corresponding path program 1 times [2024-10-11 03:01:25,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:01:25,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804000064] [2024-10-11 03:01:25,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:01:25,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:01:25,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:25,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 03:01:25,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:25,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 03:01:25,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:25,947 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 03:01:25,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:01:25,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804000064] [2024-10-11 03:01:25,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804000064] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:01:25,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:01:25,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 03:01:25,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031518335] [2024-10-11 03:01:25,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:01:25,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 03:01:25,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:01:25,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 03:01:25,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 03:01:25,953 INFO L87 Difference]: Start difference. First operand 135 states and 183 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 03:01:26,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:01:26,169 INFO L93 Difference]: Finished difference Result 354 states and 485 transitions. [2024-10-11 03:01:26,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 03:01:26,170 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 29 [2024-10-11 03:01:26,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:01:26,172 INFO L225 Difference]: With dead ends: 354 [2024-10-11 03:01:26,172 INFO L226 Difference]: Without dead ends: 221 [2024-10-11 03:01:26,175 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-11 03:01:26,176 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 51 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:01:26,177 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 346 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:01:26,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2024-10-11 03:01:26,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 220. [2024-10-11 03:01:26,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 153 states have (on average 1.3529411764705883) internal successors, (207), 170 states have internal predecessors, (207), 36 states have call successors, (36), 30 states have call predecessors, (36), 30 states have return successors, (44), 33 states have call predecessors, (44), 36 states have call successors, (44) [2024-10-11 03:01:26,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 287 transitions. [2024-10-11 03:01:26,211 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 287 transitions. Word has length 29 [2024-10-11 03:01:26,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:01:26,212 INFO L471 AbstractCegarLoop]: Abstraction has 220 states and 287 transitions. [2024-10-11 03:01:26,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 03:01:26,212 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 287 transitions. [2024-10-11 03:01:26,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-10-11 03:01:26,214 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:01:26,214 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:01:26,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 03:01:26,218 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:01:26,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:01:26,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1672378068, now seen corresponding path program 1 times [2024-10-11 03:01:26,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:01:26,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341352325] [2024-10-11 03:01:26,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:01:26,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:01:26,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:26,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-11 03:01:26,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:26,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 03:01:26,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:26,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 03:01:26,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:26,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 03:01:26,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:26,331 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 03:01:26,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:01:26,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341352325] [2024-10-11 03:01:26,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341352325] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:01:26,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:01:26,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 03:01:26,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75875921] [2024-10-11 03:01:26,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:01:26,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:01:26,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:01:26,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:01:26,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:01:26,334 INFO L87 Difference]: Start difference. First operand 220 states and 287 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-11 03:01:26,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:01:26,520 INFO L93 Difference]: Finished difference Result 482 states and 645 transitions. [2024-10-11 03:01:26,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 03:01:26,521 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 44 [2024-10-11 03:01:26,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:01:26,529 INFO L225 Difference]: With dead ends: 482 [2024-10-11 03:01:26,529 INFO L226 Difference]: Without dead ends: 264 [2024-10-11 03:01:26,531 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:01:26,532 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 51 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:01:26,533 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 214 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:01:26,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2024-10-11 03:01:26,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 262. [2024-10-11 03:01:26,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 185 states have (on average 1.335135135135135) internal successors, (247), 202 states have internal predecessors, (247), 40 states have call successors, (40), 30 states have call predecessors, (40), 36 states have return successors, (54), 41 states have call predecessors, (54), 40 states have call successors, (54) [2024-10-11 03:01:26,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 341 transitions. [2024-10-11 03:01:26,579 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 341 transitions. Word has length 44 [2024-10-11 03:01:26,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:01:26,581 INFO L471 AbstractCegarLoop]: Abstraction has 262 states and 341 transitions. [2024-10-11 03:01:26,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-11 03:01:26,581 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 341 transitions. [2024-10-11 03:01:26,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-10-11 03:01:26,584 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:01:26,585 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:01:26,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 03:01:26,586 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:01:26,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:01:26,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1249676242, now seen corresponding path program 1 times [2024-10-11 03:01:26,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:01:26,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97515774] [2024-10-11 03:01:26,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:01:26,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:01:26,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:26,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-11 03:01:26,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:26,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 03:01:26,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:26,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 03:01:26,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:26,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 03:01:26,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:26,803 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 03:01:26,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:01:26,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97515774] [2024-10-11 03:01:26,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97515774] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:01:26,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:01:26,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 03:01:26,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861575741] [2024-10-11 03:01:26,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:01:26,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 03:01:26,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:01:26,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 03:01:26,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 03:01:26,808 INFO L87 Difference]: Start difference. First operand 262 states and 341 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-11 03:01:27,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:01:27,091 INFO L93 Difference]: Finished difference Result 534 states and 707 transitions. [2024-10-11 03:01:27,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 03:01:27,092 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 44 [2024-10-11 03:01:27,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:01:27,095 INFO L225 Difference]: With dead ends: 534 [2024-10-11 03:01:27,095 INFO L226 Difference]: Without dead ends: 274 [2024-10-11 03:01:27,099 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-10-11 03:01:27,100 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 167 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:01:27,100 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 285 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:01:27,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2024-10-11 03:01:27,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 266. [2024-10-11 03:01:27,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 189 states have (on average 1.3280423280423281) internal successors, (251), 206 states have internal predecessors, (251), 40 states have call successors, (40), 30 states have call predecessors, (40), 36 states have return successors, (54), 41 states have call predecessors, (54), 40 states have call successors, (54) [2024-10-11 03:01:27,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 345 transitions. [2024-10-11 03:01:27,134 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 345 transitions. Word has length 44 [2024-10-11 03:01:27,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:01:27,135 INFO L471 AbstractCegarLoop]: Abstraction has 266 states and 345 transitions. [2024-10-11 03:01:27,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-11 03:01:27,136 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 345 transitions. [2024-10-11 03:01:27,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-10-11 03:01:27,139 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:01:27,139 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:01:27,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 03:01:27,140 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:01:27,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:01:27,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1239852720, now seen corresponding path program 1 times [2024-10-11 03:01:27,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:01:27,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992517412] [2024-10-11 03:01:27,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:01:27,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:01:27,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:27,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-11 03:01:27,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:27,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 03:01:27,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:27,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 03:01:27,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:27,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 03:01:27,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:27,249 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 03:01:27,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:01:27,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992517412] [2024-10-11 03:01:27,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992517412] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:01:27,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:01:27,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 03:01:27,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394132170] [2024-10-11 03:01:27,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:01:27,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:01:27,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:01:27,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:01:27,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:01:27,254 INFO L87 Difference]: Start difference. First operand 266 states and 345 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-11 03:01:27,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:01:27,614 INFO L93 Difference]: Finished difference Result 863 states and 1195 transitions. [2024-10-11 03:01:27,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 03:01:27,615 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 44 [2024-10-11 03:01:27,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:01:27,622 INFO L225 Difference]: With dead ends: 863 [2024-10-11 03:01:27,622 INFO L226 Difference]: Without dead ends: 599 [2024-10-11 03:01:27,624 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:01:27,626 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 202 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 03:01:27,627 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 286 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 03:01:27,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2024-10-11 03:01:27,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 591. [2024-10-11 03:01:27,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 418 states have (on average 1.313397129186603) internal successors, (549), 449 states have internal predecessors, (549), 96 states have call successors, (96), 77 states have call predecessors, (96), 76 states have return successors, (146), 90 states have call predecessors, (146), 96 states have call successors, (146) [2024-10-11 03:01:27,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 791 transitions. [2024-10-11 03:01:27,692 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 791 transitions. Word has length 44 [2024-10-11 03:01:27,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:01:27,693 INFO L471 AbstractCegarLoop]: Abstraction has 591 states and 791 transitions. [2024-10-11 03:01:27,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-11 03:01:27,693 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 791 transitions. [2024-10-11 03:01:27,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-10-11 03:01:27,696 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:01:27,696 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:01:27,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 03:01:27,697 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:01:27,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:01:27,701 INFO L85 PathProgramCache]: Analyzing trace with hash 2101805846, now seen corresponding path program 1 times [2024-10-11 03:01:27,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:01:27,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863848807] [2024-10-11 03:01:27,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:01:27,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:01:27,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:27,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 03:01:27,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:27,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-11 03:01:27,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:27,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 03:01:27,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:27,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 03:01:27,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:27,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-11 03:01:27,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:27,924 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 03:01:27,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:01:27,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863848807] [2024-10-11 03:01:27,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863848807] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:01:27,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:01:27,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 03:01:27,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611669535] [2024-10-11 03:01:27,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:01:27,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 03:01:27,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:01:27,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 03:01:27,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-11 03:01:27,927 INFO L87 Difference]: Start difference. First operand 591 states and 791 transitions. Second operand has 8 states, 8 states have (on average 4.5) internal successors, (36), 6 states have internal predecessors, (36), 4 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-10-11 03:01:28,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:01:28,405 INFO L93 Difference]: Finished difference Result 1258 states and 1712 transitions. [2024-10-11 03:01:28,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 03:01:28,405 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 6 states have internal predecessors, (36), 4 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 48 [2024-10-11 03:01:28,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:01:28,411 INFO L225 Difference]: With dead ends: 1258 [2024-10-11 03:01:28,411 INFO L226 Difference]: Without dead ends: 669 [2024-10-11 03:01:28,414 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=207, Unknown=0, NotChecked=0, Total=306 [2024-10-11 03:01:28,417 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 317 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 03:01:28,417 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [322 Valid, 257 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 03:01:28,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 669 states. [2024-10-11 03:01:28,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 669 to 667. [2024-10-11 03:01:28,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 667 states, 472 states have (on average 1.2923728813559323) internal successors, (610), 511 states have internal predecessors, (610), 108 states have call successors, (108), 77 states have call predecessors, (108), 86 states have return successors, (180), 104 states have call predecessors, (180), 108 states have call successors, (180) [2024-10-11 03:01:28,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 898 transitions. [2024-10-11 03:01:28,480 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 898 transitions. Word has length 48 [2024-10-11 03:01:28,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:01:28,480 INFO L471 AbstractCegarLoop]: Abstraction has 667 states and 898 transitions. [2024-10-11 03:01:28,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 6 states have internal predecessors, (36), 4 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-10-11 03:01:28,481 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 898 transitions. [2024-10-11 03:01:28,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-10-11 03:01:28,483 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:01:28,484 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:01:28,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 03:01:28,484 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:01:28,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:01:28,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1774490300, now seen corresponding path program 1 times [2024-10-11 03:01:28,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:01:28,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601108071] [2024-10-11 03:01:28,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:01:28,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:01:28,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:28,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 03:01:28,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:28,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-11 03:01:28,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:28,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:01:28,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:28,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 03:01:28,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:28,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 03:01:28,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:28,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-11 03:01:28,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:28,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-11 03:01:28,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:28,576 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-11 03:01:28,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:01:28,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601108071] [2024-10-11 03:01:28,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601108071] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:01:28,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:01:28,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:01:28,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567638225] [2024-10-11 03:01:28,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:01:28,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:01:28,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:01:28,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:01:28,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:01:28,577 INFO L87 Difference]: Start difference. First operand 667 states and 898 transitions. Second operand has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 4 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-10-11 03:01:28,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:01:28,960 INFO L93 Difference]: Finished difference Result 775 states and 1036 transitions. [2024-10-11 03:01:28,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-11 03:01:28,961 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 4 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 72 [2024-10-11 03:01:28,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:01:28,963 INFO L225 Difference]: With dead ends: 775 [2024-10-11 03:01:28,965 INFO L226 Difference]: Without dead ends: 325 [2024-10-11 03:01:28,967 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2024-10-11 03:01:28,968 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 279 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 03:01:28,969 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 221 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 03:01:28,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2024-10-11 03:01:28,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 323. [2024-10-11 03:01:28,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 229 states have (on average 1.2489082969432315) internal successors, (286), 246 states have internal predecessors, (286), 51 states have call successors, (51), 38 states have call predecessors, (51), 42 states have return successors, (86), 50 states have call predecessors, (86), 51 states have call successors, (86) [2024-10-11 03:01:28,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 423 transitions. [2024-10-11 03:01:28,999 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 423 transitions. Word has length 72 [2024-10-11 03:01:29,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:01:29,000 INFO L471 AbstractCegarLoop]: Abstraction has 323 states and 423 transitions. [2024-10-11 03:01:29,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 4 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-10-11 03:01:29,000 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 423 transitions. [2024-10-11 03:01:29,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-11 03:01:29,003 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:01:29,004 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:01:29,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 03:01:29,004 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:01:29,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:01:29,005 INFO L85 PathProgramCache]: Analyzing trace with hash 66955684, now seen corresponding path program 1 times [2024-10-11 03:01:29,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:01:29,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98632309] [2024-10-11 03:01:29,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:01:29,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:01:29,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:29,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 03:01:29,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:29,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 03:01:29,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:29,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:01:29,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:29,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 03:01:29,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:29,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 03:01:29,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:29,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 03:01:29,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:29,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-11 03:01:29,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:29,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-11 03:01:29,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:29,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 03:01:29,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:29,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-11 03:01:29,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:29,216 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-11 03:01:29,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:01:29,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98632309] [2024-10-11 03:01:29,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98632309] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:01:29,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1568782149] [2024-10-11 03:01:29,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:01:29,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:01:29,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:01:29,220 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 03:01:29,221 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 03:01:29,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:29,312 INFO L255 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-11 03:01:29,318 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:01:29,475 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:01:29,476 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 03:01:29,699 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 15 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-11 03:01:29,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1568782149] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 03:01:29,699 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 03:01:29,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6, 6] total 15 [2024-10-11 03:01:29,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996763046] [2024-10-11 03:01:29,700 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 03:01:29,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-11 03:01:29,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:01:29,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-11 03:01:29,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-10-11 03:01:29,702 INFO L87 Difference]: Start difference. First operand 323 states and 423 transitions. Second operand has 15 states, 12 states have (on average 8.5) internal successors, (102), 10 states have internal predecessors, (102), 6 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (21), 8 states have call predecessors, (21), 6 states have call successors, (21) [2024-10-11 03:01:30,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:01:30,617 INFO L93 Difference]: Finished difference Result 722 states and 963 transitions. [2024-10-11 03:01:30,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-10-11 03:01:30,617 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 8.5) internal successors, (102), 10 states have internal predecessors, (102), 6 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (21), 8 states have call predecessors, (21), 6 states have call successors, (21) Word has length 84 [2024-10-11 03:01:30,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:01:30,619 INFO L225 Difference]: With dead ends: 722 [2024-10-11 03:01:30,619 INFO L226 Difference]: Without dead ends: 0 [2024-10-11 03:01:30,621 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 190 SyntacticMatches, 4 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=345, Invalid=1137, Unknown=0, NotChecked=0, Total=1482 [2024-10-11 03:01:30,622 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 339 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 722 mSolverCounterSat, 164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-11 03:01:30,622 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [342 Valid, 539 Invalid, 886 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [164 Valid, 722 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-11 03:01:30,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-11 03:01:30,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-11 03:01:30,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:01:30,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-11 03:01:30,624 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 84 [2024-10-11 03:01:30,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:01:30,624 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-11 03:01:30,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 8.5) internal successors, (102), 10 states have internal predecessors, (102), 6 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (21), 8 states have call predecessors, (21), 6 states have call successors, (21) [2024-10-11 03:01:30,625 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-11 03:01:30,625 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-11 03:01:30,627 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-11 03:01:30,646 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-11 03:01:30,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-11 03:01:30,831 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:01:30,833 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-11 03:01:34,542 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 03:01:34,564 WARN L155 FloydHoareUtils]: Requires clause for deactivatePump contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (or (and (= 2 ~waterLevel~0) (not (= 0 ~systemActive~0))) (and (= 1 ~systemActive~0) (<= ~waterLevel~0 2)))) Eliminated clause: (or (and (= 2 ~waterLevel~0) (not (= 0 ~systemActive~0))) (and (= 1 ~systemActive~0) (<= ~waterLevel~0 2))) [2024-10-11 03:01:34,579 WARN L155 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~switchedOnBeforeTS~0 |old(~switchedOnBeforeTS~0)|) (= |old(~waterLevel~0)| ~waterLevel~0) (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse1 (<= |old(~waterLevel~0)| 2)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (<= 1 |old(~pumpRunning~0)|))) (or (and .cse0 (= 0 ~systemActive~0) .cse1) (and .cse2 (<= 1 |old(~switchedOnBeforeTS~0)|) .cse1 .cse3) (and .cse2 .cse0 .cse1) (and .cse2 .cse3 (= |old(~waterLevel~0)| 2))))) Eliminated clause: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse1 (= 1 ~systemActive~0)) (.cse3 (= ~pumpRunning~0 0)) (.cse2 (<= ~waterLevel~0 2))) (or (and .cse0 (= 2 ~waterLevel~0) .cse1) (and .cse0 .cse1 .cse2 (<= 1 ~switchedOnBeforeTS~0)) (and .cse3 .cse1 .cse2) (and .cse3 .cse2 (= 0 ~systemActive~0)))) [2024-10-11 03:01:34,613 WARN L155 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (and (= |old(~waterLevel~0)| ~waterLevel~0) (let ((.cse3 (= ~pumpRunning~0 0)) (.cse2 (<= |old(~waterLevel~0)| 2)) (.cse0 (<= 1 ~pumpRunning~0)) (.cse1 (= 1 ~systemActive~0))) (or (and .cse0 .cse1 (<= 1 ~switchedOnBeforeTS~0) .cse2) (and .cse3 .cse1 .cse2) (and .cse3 (= 0 ~systemActive~0) .cse2) (and .cse0 .cse1 (= |old(~waterLevel~0)| 2))))) Eliminated clause: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse1 (= 1 ~systemActive~0)) (.cse3 (= ~pumpRunning~0 0)) (.cse2 (<= ~waterLevel~0 2))) (or (and .cse0 (= 2 ~waterLevel~0) .cse1) (and .cse0 .cse1 .cse2 (<= 1 ~switchedOnBeforeTS~0)) (and .cse3 .cse1 .cse2) (and .cse3 .cse2 (= 0 ~systemActive~0)))) [2024-10-11 03:01:34,622 WARN L155 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__methaneQuery contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (<= ~waterLevel~0 2))) (or (and .cse0 (= |old(~pumpRunning~0)| 0) .cse1) (and .cse0 .cse1 (<= 1 ~switchedOnBeforeTS~0) (<= 1 |old(~pumpRunning~0)|))))) Eliminated clause: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (<= ~waterLevel~0 2))) (or (and (<= 1 ~pumpRunning~0) .cse0 .cse1 (<= 1 ~switchedOnBeforeTS~0)) (and (= ~pumpRunning~0 0) .cse0 .cse1))) [2024-10-11 03:01:34,638 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 03:01:34 BoogieIcfgContainer [2024-10-11 03:01:34,640 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 03:01:34,640 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 03:01:34,640 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 03:01:34,640 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 03:01:34,641 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:01:24" (3/4) ... [2024-10-11 03:01:34,643 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-11 03:01:34,647 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-10-11 03:01:34,647 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-10-11 03:01:34,647 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-10-11 03:01:34,647 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-10-11 03:01:34,647 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-10-11 03:01:34,648 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-10-11 03:01:34,648 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2024-10-11 03:01:34,648 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2024-10-11 03:01:34,648 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2024-10-11 03:01:34,657 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 34 nodes and edges [2024-10-11 03:01:34,658 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-10-11 03:01:34,658 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-11 03:01:34,659 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-11 03:01:34,659 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-11 03:01:34,774 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-11 03:01:34,774 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-11 03:01:34,774 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 03:01:34,775 INFO L158 Benchmark]: Toolchain (without parser) took 11310.92ms. Allocated memory was 134.2MB in the beginning and 308.3MB in the end (delta: 174.1MB). Free memory was 62.6MB in the beginning and 251.7MB in the end (delta: -189.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 03:01:34,775 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 134.2MB. Free memory is still 95.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 03:01:34,775 INFO L158 Benchmark]: CACSL2BoogieTranslator took 527.63ms. Allocated memory was 134.2MB in the beginning and 211.8MB in the end (delta: 77.6MB). Free memory was 62.2MB in the beginning and 168.6MB in the end (delta: -106.4MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. [2024-10-11 03:01:34,775 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.52ms. Allocated memory is still 211.8MB. Free memory was 168.6MB in the beginning and 166.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 03:01:34,776 INFO L158 Benchmark]: Boogie Preprocessor took 59.54ms. Allocated memory is still 211.8MB. Free memory was 166.5MB in the beginning and 164.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 03:01:34,776 INFO L158 Benchmark]: RCFGBuilder took 628.02ms. Allocated memory is still 211.8MB. Free memory was 164.4MB in the beginning and 139.3MB in the end (delta: 25.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-10-11 03:01:34,776 INFO L158 Benchmark]: TraceAbstraction took 9901.27ms. Allocated memory was 211.8MB in the beginning and 308.3MB in the end (delta: 96.5MB). Free memory was 139.3MB in the beginning and 259.0MB in the end (delta: -119.7MB). Peak memory consumption was 141.1MB. Max. memory is 16.1GB. [2024-10-11 03:01:34,777 INFO L158 Benchmark]: Witness Printer took 133.90ms. Allocated memory is still 308.3MB. Free memory was 259.0MB in the beginning and 251.7MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-11 03:01:34,778 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 134.2MB. Free memory is still 95.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 527.63ms. Allocated memory was 134.2MB in the beginning and 211.8MB in the end (delta: 77.6MB). Free memory was 62.2MB in the beginning and 168.6MB in the end (delta: -106.4MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.52ms. Allocated memory is still 211.8MB. Free memory was 168.6MB in the beginning and 166.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.54ms. Allocated memory is still 211.8MB. Free memory was 166.5MB in the beginning and 164.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 628.02ms. Allocated memory is still 211.8MB. Free memory was 164.4MB in the beginning and 139.3MB in the end (delta: 25.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 9901.27ms. Allocated memory was 211.8MB in the beginning and 308.3MB in the end (delta: 96.5MB). Free memory was 139.3MB in the beginning and 259.0MB in the end (delta: -119.7MB). Peak memory consumption was 141.1MB. Max. memory is 16.1GB. * Witness Printer took 133.90ms. Allocated memory is still 308.3MB. Free memory was 259.0MB in the beginning and 251.7MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] - GenericResultAtLocation [Line: 58]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [58] - GenericResultAtLocation [Line: 283]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [283] - GenericResultAtLocation [Line: 353]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [353] - GenericResultAtLocation [Line: 454]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [454] - GenericResultAtLocation [Line: 820]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [820] - GenericResultAtLocation [Line: 855]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [855] - GenericResultAtLocation [Line: 905]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [905] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 54]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 83 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.0s, OverallIterations: 10, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1544 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1498 mSDsluCounter, 2564 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1692 mSDsCounter, 532 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2019 IncrementalHoareTripleChecker+Invalid, 2551 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 532 mSolverCounterUnsat, 872 mSDtfsCounter, 2019 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 373 GetRequests, 275 SyntacticMatches, 5 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=667occurred in iteration=8, InterpolantAutomatonStates: 88, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 10 MinimizatonAttempts, 26 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 520 NumberOfCodeBlocks, 520 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 592 ConstructedInterpolants, 0 QuantifiedInterpolants, 1168 SizeOfPredicates, 2 NumberOfNonLiveVariables, 296 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 12 InterpolantComputations, 9 PerfectInterpolantSequences, 96/124 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: 365]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 297]: Loop Invariant Derived loop invariant: ((((((((pumpRunning == 0) && (splverifierCounter == 0)) && (waterLevel <= 2)) && (0 == systemActive)) || ((((pumpRunning == 0) && (2 == waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0))) || ((((1 <= pumpRunning) && (2 == waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0))) || (((((1 <= pumpRunning) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS))) || ((((pumpRunning == 0) && (waterLevel <= 1)) && (1 == systemActive)) && (splverifierCounter == 0))) - InvariantResult [Line: 296]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 193]: Location Invariant Derived location invariant: (((((1 <= pumpRunning) && (1 == systemActive)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) || (((pumpRunning == 0) && (2 == waterLevel)) && (1 == systemActive))) - ProcedureContractResult [Line: 185]: Procedure Contract for deactivatePump Derived contract for procedure deactivatePump. Requires: (((2 == waterLevel) && (0 != systemActive)) || ((1 == systemActive) && (waterLevel <= 2))) Ensures: ((pumpRunning == 0) && (((2 == waterLevel) && (0 != systemActive)) || ((1 == systemActive) && (waterLevel <= 2)))) - ProcedureContractResult [Line: 101]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: (((((1 <= pumpRunning) && (1 == systemActive)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) || (((pumpRunning == 0) && (1 == systemActive)) && (waterLevel <= 2))) Ensures: (((((1 <= pumpRunning) && (1 == systemActive)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) || (((pumpRunning == 0) && (1 == systemActive)) && (waterLevel <= 2))) - ProcedureContractResult [Line: 932]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Requires: ((((((1 <= pumpRunning) && (2 == waterLevel)) && (1 == systemActive)) || ((((1 <= pumpRunning) && (1 == systemActive)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS))) || (((pumpRunning == 0) && (1 == systemActive)) && (waterLevel <= 2))) || (((pumpRunning == 0) && (waterLevel <= 2)) && (0 == systemActive))) Ensures: ((((((1 <= pumpRunning) && (2 == waterLevel)) && (1 == systemActive)) || ((((1 <= pumpRunning) && (1 == systemActive)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS))) || (((pumpRunning == 0) && (1 == systemActive)) && (waterLevel <= 2))) || (((pumpRunning == 0) && (waterLevel <= 2)) && (0 == systemActive))) - ProcedureContractResult [Line: 355]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: 0 - ProcedureContractResult [Line: 74]: Procedure Contract for timeShift Derived contract for procedure timeShift. Requires: ((((((1 <= pumpRunning) && (2 == waterLevel)) && (1 == systemActive)) || ((((1 <= pumpRunning) && (1 == systemActive)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS))) || (((pumpRunning == 0) && (1 == systemActive)) && (waterLevel <= 2))) || (((pumpRunning == 0) && (waterLevel <= 2)) && (0 == systemActive))) Ensures: ((((((1 < \old(waterLevel)) || (waterLevel < 2)) && (((((pumpRunning == 0) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) || (\old(pumpRunning) < 1)) || (((pumpRunning == \old(pumpRunning)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)))) && ((((((1 <= pumpRunning) && (2 == waterLevel)) && (\old(waterLevel) == 2)) || (((pumpRunning == 0) && (waterLevel <= 1)) && (\old(waterLevel) == waterLevel))) || (\old(pumpRunning) != 0)) || (((pumpRunning == 0) && (2 == waterLevel)) && (\old(waterLevel) == 2)))) && ((pumpRunning == 0) || (0 != systemActive))) && (((((1 == systemActive) && (\old(pumpRunning) == 0)) || ((\old(pumpRunning) == 0) && (0 == systemActive))) || ((((1 == systemActive) && (1 <= \old(switchedOnBeforeTS))) && (\old(waterLevel) <= 2)) && (1 <= \old(pumpRunning)))) || (((1 == systemActive) && (1 <= \old(pumpRunning))) && (\old(waterLevel) == 2)))) - ProcedureContractResult [Line: 920]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: ((((((1 <= pumpRunning) && (2 == waterLevel)) && (1 == systemActive)) || ((((1 <= pumpRunning) && (1 == systemActive)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS))) || (((pumpRunning == 0) && (1 == systemActive)) && (waterLevel <= 2))) || (((pumpRunning == 0) && (waterLevel <= 2)) && (0 == systemActive))) Ensures: ((((2 == waterLevel) || (\old(waterLevel) != 2)) && (waterLevel <= 2)) && (((((((1 <= pumpRunning) && (1 == systemActive)) && (1 <= switchedOnBeforeTS)) && (\old(waterLevel) <= 2)) || (((pumpRunning == 0) && (1 == systemActive)) && (\old(waterLevel) <= 2))) || (((pumpRunning == 0) && (0 == systemActive)) && (\old(waterLevel) <= 2))) || (((1 <= pumpRunning) && (1 == systemActive)) && (\old(waterLevel) == 2)))) - ProcedureContractResult [Line: 109]: Procedure Contract for processEnvironment__wrappee__methaneQuery Derived contract for procedure processEnvironment__wrappee__methaneQuery. Requires: (((((1 <= pumpRunning) && (1 == systemActive)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) || (((pumpRunning == 0) && (1 == systemActive)) && (waterLevel <= 2))) Ensures: ((((pumpRunning == \old(pumpRunning)) || (\old(pumpRunning) < 1)) && (((1 == systemActive) && (\old(pumpRunning) == 0)) || ((((1 == systemActive) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) && (1 <= \old(pumpRunning))))) && ((((\old(pumpRunning) != 0) || ((1 <= pumpRunning) && (2 == waterLevel))) || ((pumpRunning == 0) && (2 == waterLevel))) || ((pumpRunning == 0) && (waterLevel <= 1)))) - ProcedureContractResult [Line: 204]: Procedure Contract for isPumpRunning Derived contract for procedure isPumpRunning. Requires: ((((((1 <= pumpRunning) && (2 == waterLevel)) && (1 == systemActive)) || ((((1 <= pumpRunning) && (1 == systemActive)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS))) || (((pumpRunning == 0) && (1 == systemActive)) && (waterLevel <= 2))) || (((pumpRunning == 0) && (waterLevel <= 2)) && (0 == systemActive))) Ensures: (((((((1 <= pumpRunning) && (2 == waterLevel)) && (1 == systemActive)) || ((((1 <= pumpRunning) && (1 == systemActive)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS))) || (((pumpRunning == 0) && (1 == systemActive)) && (waterLevel <= 2))) || (((pumpRunning == 0) && (waterLevel <= 2)) && (0 == systemActive))) && (pumpRunning == \result)) - ProcedureContractResult [Line: 193]: Procedure Contract for isMethaneAlarm Derived contract for procedure isMethaneAlarm. Requires: (((((1 <= pumpRunning) && (1 == systemActive)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) || (((pumpRunning == 0) && (2 == waterLevel)) && (1 == systemActive))) Ensures: (((((1 <= pumpRunning) && (1 == systemActive)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) || (((pumpRunning == 0) && (2 == waterLevel)) && (1 == systemActive))) RESULT: Ultimate proved your program to be correct! [2024-10-11 03:01:34,808 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE