./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_product63.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_product63.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 b18268074b12ff6db81668668ee2d33af663d931f7be534d8799200934e1992a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 03:01:36,299 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 03:01:36,351 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 03:01:36,354 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 03:01:36,354 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 03:01:36,375 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 03:01:36,375 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 03:01:36,375 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 03:01:36,376 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 03:01:36,376 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 03:01:36,376 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 03:01:36,377 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 03:01:36,377 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 03:01:36,377 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 03:01:36,378 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 03:01:36,378 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 03:01:36,378 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 03:01:36,379 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 03:01:36,379 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 03:01:36,379 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 03:01:36,380 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 03:01:36,381 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 03:01:36,381 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 03:01:36,381 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 03:01:36,381 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 03:01:36,381 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 03:01:36,382 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 03:01:36,382 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 03:01:36,382 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 03:01:36,382 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 03:01:36,382 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 03:01:36,383 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 03:01:36,383 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 03:01:36,383 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 03:01:36,383 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 03:01:36,383 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 03:01:36,384 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 03:01:36,384 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 03:01:36,384 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 03:01:36,388 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 03:01:36,389 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 03:01:36,389 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 03:01:36,390 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b18268074b12ff6db81668668ee2d33af663d931f7be534d8799200934e1992a [2024-10-11 03:01:36,618 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 03:01:36,634 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 03:01:36,637 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 03:01:36,638 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 03:01:36,639 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 03:01:36,639 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product63.cil.c [2024-10-11 03:01:37,866 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 03:01:38,064 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 03:01:38,064 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product63.cil.c [2024-10-11 03:01:38,077 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/55bad8eab/3ac995d4e4fd4319b7b03807d92fb153/FLAG719ad9751 [2024-10-11 03:01:38,092 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/55bad8eab/3ac995d4e4fd4319b7b03807d92fb153 [2024-10-11 03:01:38,094 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 03:01:38,095 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 03:01:38,096 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 03:01:38,096 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 03:01:38,104 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 03:01:38,105 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:01:38" (1/1) ... [2024-10-11 03:01:38,106 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56ba454a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:01:38, skipping insertion in model container [2024-10-11 03:01:38,107 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:01:38" (1/1) ... [2024-10-11 03:01:38,154 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 03:01:38,315 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_product63.cil.c[2897,2910] [2024-10-11 03:01:38,394 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 03:01:38,404 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 03:01:38,411 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [49] [2024-10-11 03:01:38,412 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [101] [2024-10-11 03:01:38,412 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [139] [2024-10-11 03:01:38,412 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [148] [2024-10-11 03:01:38,412 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [220] [2024-10-11 03:01:38,412 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [318] [2024-10-11 03:01:38,413 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [583] [2024-10-11 03:01:38,413 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [686] [2024-10-11 03:01:38,418 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_product63.cil.c[2897,2910] [2024-10-11 03:01:38,456 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 03:01:38,477 INFO L204 MainTranslator]: Completed translation [2024-10-11 03:01:38,478 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:01:38 WrapperNode [2024-10-11 03:01:38,478 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 03:01:38,479 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 03:01:38,479 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 03:01:38,479 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 03:01:38,484 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:01:38" (1/1) ... [2024-10-11 03:01:38,494 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:01:38" (1/1) ... [2024-10-11 03:01:38,514 INFO L138 Inliner]: procedures = 60, calls = 109, calls flagged for inlining = 26, calls inlined = 23, statements flattened = 246 [2024-10-11 03:01:38,515 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 03:01:38,515 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 03:01:38,515 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 03:01:38,515 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 03:01:38,523 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:01:38" (1/1) ... [2024-10-11 03:01:38,523 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:01:38" (1/1) ... [2024-10-11 03:01:38,525 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:01:38" (1/1) ... [2024-10-11 03:01:38,535 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 03:01:38,535 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:01:38" (1/1) ... [2024-10-11 03:01:38,536 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:01:38" (1/1) ... [2024-10-11 03:01:38,539 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:01:38" (1/1) ... [2024-10-11 03:01:38,541 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:01:38" (1/1) ... [2024-10-11 03:01:38,542 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:01:38" (1/1) ... [2024-10-11 03:01:38,543 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:01:38" (1/1) ... [2024-10-11 03:01:38,545 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 03:01:38,549 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 03:01:38,549 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 03:01:38,549 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 03:01:38,550 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:01:38" (1/1) ... [2024-10-11 03:01:38,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 03:01:38,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:01:38,583 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 03:01:38,585 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 03:01:38,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 03:01:38,623 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-10-11 03:01:38,623 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-10-11 03:01:38,623 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-10-11 03:01:38,623 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-10-11 03:01:38,623 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-10-11 03:01:38,623 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-10-11 03:01:38,623 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-10-11 03:01:38,623 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-10-11 03:01:38,623 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-10-11 03:01:38,623 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-10-11 03:01:38,623 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2024-10-11 03:01:38,623 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2024-10-11 03:01:38,624 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2024-10-11 03:01:38,624 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2024-10-11 03:01:38,624 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2024-10-11 03:01:38,624 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2024-10-11 03:01:38,624 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-10-11 03:01:38,624 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-10-11 03:01:38,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 03:01:38,624 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-10-11 03:01:38,624 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-10-11 03:01:38,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 03:01:38,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 03:01:38,717 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 03:01:38,719 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 03:01:38,929 INFO L? ?]: Removed 52 outVars from TransFormulas that were not future-live. [2024-10-11 03:01:38,931 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 03:01:38,983 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 03:01:38,983 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-11 03:01:38,983 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:01:38 BoogieIcfgContainer [2024-10-11 03:01:38,983 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 03:01:38,985 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 03:01:38,985 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 03:01:38,987 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 03:01:38,988 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 03:01:38" (1/3) ... [2024-10-11 03:01:38,988 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@772fab6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:01:38, skipping insertion in model container [2024-10-11 03:01:38,988 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:01:38" (2/3) ... [2024-10-11 03:01:38,988 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@772fab6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:01:38, skipping insertion in model container [2024-10-11 03:01:38,988 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:01:38" (3/3) ... [2024-10-11 03:01:38,989 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product63.cil.c [2024-10-11 03:01:39,001 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 03:01:39,001 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 03:01:39,052 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 03:01:39,059 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;@3829648, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 03:01:39,059 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 03:01:39,064 INFO L276 IsEmpty]: Start isEmpty. Operand has 93 states, 62 states have (on average 1.5) internal successors, (93), 73 states have internal predecessors, (93), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (19), 14 states have call predecessors, (19), 19 states have call successors, (19) [2024-10-11 03:01:39,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-10-11 03:01:39,074 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:01:39,074 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 03:01:39,074 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:01:39,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:01:39,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1768623423, now seen corresponding path program 1 times [2024-10-11 03:01:39,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:01:39,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003998522] [2024-10-11 03:01:39,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:01:39,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:01:39,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:39,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 03:01:39,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:39,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-11 03:01:39,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:39,240 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 03:01:39,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:01:39,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003998522] [2024-10-11 03:01:39,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003998522] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:01:39,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:01:39,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 03:01:39,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24733620] [2024-10-11 03:01:39,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:01:39,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 03:01:39,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:01:39,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 03:01:39,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 03:01:39,263 INFO L87 Difference]: Start difference. First operand has 93 states, 62 states have (on average 1.5) internal successors, (93), 73 states have internal predecessors, (93), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (19), 14 states have call predecessors, (19), 19 states have call successors, (19) 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 03:01:39,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:01:39,314 INFO L93 Difference]: Finished difference Result 184 states and 263 transitions. [2024-10-11 03:01:39,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 03:01:39,317 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 03:01:39,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:01:39,323 INFO L225 Difference]: With dead ends: 184 [2024-10-11 03:01:39,323 INFO L226 Difference]: Without dead ends: 88 [2024-10-11 03:01:39,326 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 03:01:39,328 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:01:39,329 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 109 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:01:39,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-10-11 03:01:39,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2024-10-11 03:01:39,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 59 states have (on average 1.4067796610169492) internal successors, (83), 69 states have internal predecessors, (83), 19 states have call successors, (19), 10 states have call predecessors, (19), 9 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-11 03:01:39,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 120 transitions. [2024-10-11 03:01:39,362 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 120 transitions. Word has length 22 [2024-10-11 03:01:39,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:01:39,362 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 120 transitions. [2024-10-11 03:01:39,363 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 03:01:39,363 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 120 transitions. [2024-10-11 03:01:39,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-10-11 03:01:39,365 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:01:39,365 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 03:01:39,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 03:01:39,365 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:01:39,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:01:39,366 INFO L85 PathProgramCache]: Analyzing trace with hash 541963458, now seen corresponding path program 1 times [2024-10-11 03:01:39,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:01:39,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658457830] [2024-10-11 03:01:39,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:01:39,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:01:39,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:39,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 03:01:39,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:39,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-11 03:01:39,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:39,462 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 03:01:39,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:01:39,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658457830] [2024-10-11 03:01:39,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658457830] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:01:39,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:01:39,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:01:39,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052278548] [2024-10-11 03:01:39,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:01:39,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:01:39,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:01:39,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:01:39,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:01:39,466 INFO L87 Difference]: Start difference. First operand 88 states and 120 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 03:01:39,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:01:39,504 INFO L93 Difference]: Finished difference Result 146 states and 198 transitions. [2024-10-11 03:01:39,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:01:39,504 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 03:01:39,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:01:39,507 INFO L225 Difference]: With dead ends: 146 [2024-10-11 03:01:39,507 INFO L226 Difference]: Without dead ends: 80 [2024-10-11 03:01:39,508 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 03:01:39,509 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 14 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:01:39,509 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 173 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:01:39,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-10-11 03:01:39,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2024-10-11 03:01:39,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 54 states have (on average 1.4259259259259258) internal successors, (77), 64 states have internal predecessors, (77), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-11 03:01:39,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 109 transitions. [2024-10-11 03:01:39,523 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 109 transitions. Word has length 23 [2024-10-11 03:01:39,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:01:39,523 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 109 transitions. [2024-10-11 03:01:39,523 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 03:01:39,523 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 109 transitions. [2024-10-11 03:01:39,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-10-11 03:01:39,524 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:01:39,525 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 03:01:39,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 03:01:39,525 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:01:39,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:01:39,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1027451880, now seen corresponding path program 1 times [2024-10-11 03:01:39,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:01:39,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009858507] [2024-10-11 03:01:39,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:01:39,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:01:39,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:39,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-11 03:01:39,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:39,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 03:01:39,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:39,614 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 03:01:39,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:01:39,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009858507] [2024-10-11 03:01:39,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009858507] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:01:39,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:01:39,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:01:39,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025172283] [2024-10-11 03:01:39,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:01:39,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:01:39,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:01:39,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:01:39,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:01:39,618 INFO L87 Difference]: Start difference. First operand 80 states and 109 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 03:01:39,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:01:39,690 INFO L93 Difference]: Finished difference Result 236 states and 324 transitions. [2024-10-11 03:01:39,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:01:39,691 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 03:01:39,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:01:39,693 INFO L225 Difference]: With dead ends: 236 [2024-10-11 03:01:39,693 INFO L226 Difference]: Without dead ends: 158 [2024-10-11 03:01:39,693 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 03:01:39,697 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 93 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:01:39,697 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 201 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:01:39,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2024-10-11 03:01:39,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 155. [2024-10-11 03:01:39,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 104 states have (on average 1.4326923076923077) internal successors, (149), 123 states have internal predecessors, (149), 32 states have call successors, (32), 18 states have call predecessors, (32), 18 states have return successors, (32), 21 states have call predecessors, (32), 32 states have call successors, (32) [2024-10-11 03:01:39,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 213 transitions. [2024-10-11 03:01:39,717 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 213 transitions. Word has length 26 [2024-10-11 03:01:39,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:01:39,717 INFO L471 AbstractCegarLoop]: Abstraction has 155 states and 213 transitions. [2024-10-11 03:01:39,717 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 03:01:39,719 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 213 transitions. [2024-10-11 03:01:39,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-10-11 03:01:39,720 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:01:39,720 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 03:01:39,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 03:01:39,720 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:01:39,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:01:39,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1399715380, now seen corresponding path program 1 times [2024-10-11 03:01:39,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:01:39,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550263362] [2024-10-11 03:01:39,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:01:39,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:01:39,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:39,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 03:01:39,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:39,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 03:01:39,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:39,847 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 03:01:39,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:01:39,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550263362] [2024-10-11 03:01:39,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550263362] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:01:39,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:01:39,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 03:01:39,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475319425] [2024-10-11 03:01:39,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:01:39,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 03:01:39,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:01:39,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 03:01:39,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 03:01:39,851 INFO L87 Difference]: Start difference. First operand 155 states and 213 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 03:01:40,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:01:40,025 INFO L93 Difference]: Finished difference Result 402 states and 561 transitions. [2024-10-11 03:01:40,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 03:01:40,026 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 03:01:40,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:01:40,028 INFO L225 Difference]: With dead ends: 402 [2024-10-11 03:01:40,028 INFO L226 Difference]: Without dead ends: 249 [2024-10-11 03:01:40,037 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 03:01:40,038 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 58 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:01:40,038 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 404 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:01:40,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2024-10-11 03:01:40,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 248. [2024-10-11 03:01:40,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 171 states have (on average 1.3508771929824561) internal successors, (231), 190 states have internal predecessors, (231), 42 states have call successors, (42), 34 states have call predecessors, (42), 34 states have return successors, (54), 37 states have call predecessors, (54), 42 states have call successors, (54) [2024-10-11 03:01:40,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 327 transitions. [2024-10-11 03:01:40,075 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 327 transitions. Word has length 29 [2024-10-11 03:01:40,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:01:40,076 INFO L471 AbstractCegarLoop]: Abstraction has 248 states and 327 transitions. [2024-10-11 03:01:40,076 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 03:01:40,077 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 327 transitions. [2024-10-11 03:01:40,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-10-11 03:01:40,079 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:01:40,079 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, 1] [2024-10-11 03:01:40,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 03:01:40,079 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:01:40,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:01:40,081 INFO L85 PathProgramCache]: Analyzing trace with hash -173196600, now seen corresponding path program 1 times [2024-10-11 03:01:40,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:01:40,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33846814] [2024-10-11 03:01:40,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:01:40,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:01:40,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:40,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-11 03:01:40,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:40,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 03:01:40,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:40,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 03:01:40,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:40,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 03:01:40,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:40,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-11 03:01:40,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:40,208 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 03:01:40,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:01:40,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33846814] [2024-10-11 03:01:40,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33846814] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:01:40,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:01:40,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 03:01:40,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255372700] [2024-10-11 03:01:40,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:01:40,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:01:40,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:01:40,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:01:40,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:01:40,212 INFO L87 Difference]: Start difference. First operand 248 states and 327 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:01:40,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:01:40,362 INFO L93 Difference]: Finished difference Result 546 states and 741 transitions. [2024-10-11 03:01:40,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 03:01:40,362 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 49 [2024-10-11 03:01:40,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:01:40,364 INFO L225 Difference]: With dead ends: 546 [2024-10-11 03:01:40,365 INFO L226 Difference]: Without dead ends: 300 [2024-10-11 03:01:40,368 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 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 03:01:40,369 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 60 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:01:40,369 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 248 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:01:40,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2024-10-11 03:01:40,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 298. [2024-10-11 03:01:40,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 207 states have (on average 1.328502415458937) internal successors, (275), 226 states have internal predecessors, (275), 46 states have call successors, (46), 34 states have call predecessors, (46), 44 states have return successors, (68), 49 states have call predecessors, (68), 46 states have call successors, (68) [2024-10-11 03:01:40,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 389 transitions. [2024-10-11 03:01:40,410 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 389 transitions. Word has length 49 [2024-10-11 03:01:40,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:01:40,410 INFO L471 AbstractCegarLoop]: Abstraction has 298 states and 389 transitions. [2024-10-11 03:01:40,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:01:40,411 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 389 transitions. [2024-10-11 03:01:40,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-10-11 03:01:40,413 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:01:40,413 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, 1] [2024-10-11 03:01:40,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 03:01:40,415 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:01:40,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:01:40,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1978634934, now seen corresponding path program 1 times [2024-10-11 03:01:40,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:01:40,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702851632] [2024-10-11 03:01:40,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:01:40,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:01:40,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:40,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-11 03:01:40,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:40,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 03:01:40,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:40,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 03:01:40,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:40,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 03:01:40,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:40,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-11 03:01:40,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:40,512 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 03:01:40,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:01:40,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702851632] [2024-10-11 03:01:40,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702851632] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:01:40,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:01:40,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 03:01:40,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414645182] [2024-10-11 03:01:40,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:01:40,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:01:40,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:01:40,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:01:40,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:01:40,514 INFO L87 Difference]: Start difference. First operand 298 states and 389 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:01:40,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:01:40,652 INFO L93 Difference]: Finished difference Result 600 states and 807 transitions. [2024-10-11 03:01:40,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 03:01:40,653 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 49 [2024-10-11 03:01:40,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:01:40,655 INFO L225 Difference]: With dead ends: 600 [2024-10-11 03:01:40,655 INFO L226 Difference]: Without dead ends: 304 [2024-10-11 03:01:40,657 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 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 03:01:40,658 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 60 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:01:40,658 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 246 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:01:40,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2024-10-11 03:01:40,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 302. [2024-10-11 03:01:40,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 211 states have (on average 1.3222748815165877) internal successors, (279), 230 states have internal predecessors, (279), 46 states have call successors, (46), 34 states have call predecessors, (46), 44 states have return successors, (68), 49 states have call predecessors, (68), 46 states have call successors, (68) [2024-10-11 03:01:40,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 393 transitions. [2024-10-11 03:01:40,683 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 393 transitions. Word has length 49 [2024-10-11 03:01:40,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:01:40,683 INFO L471 AbstractCegarLoop]: Abstraction has 302 states and 393 transitions. [2024-10-11 03:01:40,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:01:40,683 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 393 transitions. [2024-10-11 03:01:40,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-10-11 03:01:40,684 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:01:40,684 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, 1] [2024-10-11 03:01:40,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 03:01:40,685 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:01:40,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:01:40,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1838086324, now seen corresponding path program 1 times [2024-10-11 03:01:40,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:01:40,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824921483] [2024-10-11 03:01:40,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:01:40,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:01:40,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:40,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-11 03:01:40,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:40,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 03:01:40,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:40,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 03:01:40,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:40,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 03:01:40,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:40,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-11 03:01:40,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:40,769 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 03:01:40,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:01:40,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824921483] [2024-10-11 03:01:40,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824921483] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:01:40,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:01:40,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 03:01:40,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987862567] [2024-10-11 03:01:40,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:01:40,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:01:40,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:01:40,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:01:40,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:01:40,770 INFO L87 Difference]: Start difference. First operand 302 states and 393 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-10-11 03:01:41,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:01:41,015 INFO L93 Difference]: Finished difference Result 860 states and 1163 transitions. [2024-10-11 03:01:41,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 03:01:41,016 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 49 [2024-10-11 03:01:41,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:01:41,018 INFO L225 Difference]: With dead ends: 860 [2024-10-11 03:01:41,018 INFO L226 Difference]: Without dead ends: 560 [2024-10-11 03:01:41,019 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 1 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 03:01:41,020 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 221 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:01:41,020 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 261 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:01:41,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2024-10-11 03:01:41,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 554. [2024-10-11 03:01:41,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 389 states have (on average 1.275064267352185) internal successors, (496), 417 states have internal predecessors, (496), 87 states have call successors, (87), 71 states have call predecessors, (87), 77 states have return successors, (139), 88 states have call predecessors, (139), 87 states have call successors, (139) [2024-10-11 03:01:41,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 722 transitions. [2024-10-11 03:01:41,058 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 722 transitions. Word has length 49 [2024-10-11 03:01:41,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:01:41,060 INFO L471 AbstractCegarLoop]: Abstraction has 554 states and 722 transitions. [2024-10-11 03:01:41,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-10-11 03:01:41,060 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 722 transitions. [2024-10-11 03:01:41,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-10-11 03:01:41,061 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:01:41,062 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, 1, 1, 1, 1, 1] [2024-10-11 03:01:41,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 03:01:41,062 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:01:41,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:01:41,065 INFO L85 PathProgramCache]: Analyzing trace with hash -444083930, now seen corresponding path program 1 times [2024-10-11 03:01:41,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:01:41,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473179307] [2024-10-11 03:01:41,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:01:41,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:01:41,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:41,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 03:01:41,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:41,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-11 03:01:41,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:41,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 03:01:41,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:41,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 03:01:41,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:41,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 03:01:41,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:41,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 03:01:41,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:41,205 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 03:01:41,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:01:41,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473179307] [2024-10-11 03:01:41,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473179307] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:01:41,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:01:41,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 03:01:41,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928183970] [2024-10-11 03:01:41,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:01:41,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 03:01:41,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:01:41,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 03:01:41,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-11 03:01:41,207 INFO L87 Difference]: Start difference. First operand 554 states and 722 transitions. Second operand has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 7 states have internal predecessors, (39), 5 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-10-11 03:01:41,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:01:41,767 INFO L93 Difference]: Finished difference Result 1459 states and 2020 transitions. [2024-10-11 03:01:41,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-11 03:01:41,768 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 7 states have internal predecessors, (39), 5 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 53 [2024-10-11 03:01:41,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:01:41,772 INFO L225 Difference]: With dead ends: 1459 [2024-10-11 03:01:41,772 INFO L226 Difference]: Without dead ends: 1007 [2024-10-11 03:01:41,774 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=125, Invalid=337, Unknown=0, NotChecked=0, Total=462 [2024-10-11 03:01:41,774 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 504 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 225 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 225 IncrementalHoareTripleChecker+Valid, 564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 03:01:41,774 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [512 Valid, 344 Invalid, 789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [225 Valid, 564 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 03:01:41,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1007 states. [2024-10-11 03:01:41,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1007 to 932. [2024-10-11 03:01:41,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 932 states, 652 states have (on average 1.2760736196319018) internal successors, (832), 706 states have internal predecessors, (832), 148 states have call successors, (148), 112 states have call predecessors, (148), 131 states have return successors, (238), 147 states have call predecessors, (238), 148 states have call successors, (238) [2024-10-11 03:01:41,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 932 states to 932 states and 1218 transitions. [2024-10-11 03:01:41,830 INFO L78 Accepts]: Start accepts. Automaton has 932 states and 1218 transitions. Word has length 53 [2024-10-11 03:01:41,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:01:41,831 INFO L471 AbstractCegarLoop]: Abstraction has 932 states and 1218 transitions. [2024-10-11 03:01:41,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 7 states have internal predecessors, (39), 5 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-10-11 03:01:41,831 INFO L276 IsEmpty]: Start isEmpty. Operand 932 states and 1218 transitions. [2024-10-11 03:01:41,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-11 03:01:41,833 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:01:41,834 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, 1, 1, 1, 1, 1] [2024-10-11 03:01:41,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 03:01:41,834 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:01:41,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:01:41,834 INFO L85 PathProgramCache]: Analyzing trace with hash -937529434, now seen corresponding path program 1 times [2024-10-11 03:01:41,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:01:41,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069041243] [2024-10-11 03:01:41,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:01:41,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:01:41,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:41,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 03:01:41,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:41,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-11 03:01:41,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:41,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:01:41,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:41,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 03:01:41,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:41,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 03:01:41,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:41,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 03:01:41,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:41,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-11 03:01:41,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:41,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-11 03:01:41,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:41,919 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 03:01:41,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:01:41,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069041243] [2024-10-11 03:01:41,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069041243] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:01:41,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:01:41,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:01:41,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165582063] [2024-10-11 03:01:41,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:01:41,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:01:41,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:01:41,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:01:41,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:01:41,922 INFO L87 Difference]: Start difference. First operand 932 states and 1218 transitions. Second operand has 7 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-10-11 03:01:42,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:01:42,273 INFO L93 Difference]: Finished difference Result 1125 states and 1463 transitions. [2024-10-11 03:01:42,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-11 03:01:42,274 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 77 [2024-10-11 03:01:42,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:01:42,277 INFO L225 Difference]: With dead ends: 1125 [2024-10-11 03:01:42,277 INFO L226 Difference]: Without dead ends: 462 [2024-10-11 03:01:42,279 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 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 03:01:42,279 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 236 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:01:42,279 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 260 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:01:42,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2024-10-11 03:01:42,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 422. [2024-10-11 03:01:42,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 295 states have (on average 1.2271186440677966) internal successors, (362), 318 states have internal predecessors, (362), 66 states have call successors, (66), 50 states have call predecessors, (66), 60 states have return successors, (108), 66 states have call predecessors, (108), 66 states have call successors, (108) [2024-10-11 03:01:42,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 536 transitions. [2024-10-11 03:01:42,317 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 536 transitions. Word has length 77 [2024-10-11 03:01:42,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:01:42,317 INFO L471 AbstractCegarLoop]: Abstraction has 422 states and 536 transitions. [2024-10-11 03:01:42,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-10-11 03:01:42,317 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 536 transitions. [2024-10-11 03:01:42,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-10-11 03:01:42,318 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:01:42,318 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:01:42,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 03:01:42,319 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:01:42,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:01:42,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1255693796, now seen corresponding path program 1 times [2024-10-11 03:01:42,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:01:42,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804259070] [2024-10-11 03:01:42,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:01:42,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:01:42,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:42,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 03:01:42,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:42,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 03:01:42,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:42,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:01:42,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:42,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 03:01:42,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:42,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 03:01:42,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:42,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 03:01:42,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:42,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 03:01:42,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:42,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-11 03:01:42,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:42,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-11 03:01:42,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:42,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 03:01:42,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:42,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 03:01:42,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:42,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-11 03:01:42,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:42,509 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 17 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-11 03:01:42,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:01:42,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804259070] [2024-10-11 03:01:42,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804259070] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:01:42,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1424846406] [2024-10-11 03:01:42,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:01:42,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:01:42,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:01:42,512 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 03:01:42,513 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 03:01:42,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:01:42,588 INFO L255 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-11 03:01:42,593 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:01:42,744 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 24 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:01:42,744 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 03:01:42,926 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 15 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-11 03:01:42,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1424846406] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 03:01:42,926 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 03:01:42,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6, 6] total 15 [2024-10-11 03:01:42,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373314393] [2024-10-11 03:01:42,926 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 03:01:42,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-11 03:01:42,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:01:42,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-11 03:01:42,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-10-11 03:01:42,928 INFO L87 Difference]: Start difference. First operand 422 states and 536 transitions. Second operand has 15 states, 12 states have (on average 9.75) internal successors, (117), 10 states have internal predecessors, (117), 6 states have call successors, (29), 7 states have call predecessors, (29), 6 states have return successors, (24), 8 states have call predecessors, (24), 6 states have call successors, (24) [2024-10-11 03:01:43,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:01:43,765 INFO L93 Difference]: Finished difference Result 871 states and 1128 transitions. [2024-10-11 03:01:43,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-10-11 03:01:43,765 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 9.75) internal successors, (117), 10 states have internal predecessors, (117), 6 states have call successors, (29), 7 states have call predecessors, (29), 6 states have return successors, (24), 8 states have call predecessors, (24), 6 states have call successors, (24) Word has length 97 [2024-10-11 03:01:43,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:01:43,766 INFO L225 Difference]: With dead ends: 871 [2024-10-11 03:01:43,766 INFO L226 Difference]: Without dead ends: 0 [2024-10-11 03:01:43,769 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 222 SyntacticMatches, 4 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=345, Invalid=1137, Unknown=0, NotChecked=0, Total=1482 [2024-10-11 03:01:43,769 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 425 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 1048 mSolverCounterSat, 210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 1258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 1048 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-11 03:01:43,769 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 678 Invalid, 1258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [210 Valid, 1048 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-11 03:01:43,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-11 03:01:43,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-11 03:01:43,770 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 03:01:43,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-11 03:01:43,770 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 97 [2024-10-11 03:01:43,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:01:43,770 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-11 03:01:43,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 9.75) internal successors, (117), 10 states have internal predecessors, (117), 6 states have call successors, (29), 7 states have call predecessors, (29), 6 states have return successors, (24), 8 states have call predecessors, (24), 6 states have call successors, (24) [2024-10-11 03:01:43,770 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-11 03:01:43,771 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-11 03:01:43,773 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-11 03:01:43,787 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 03:01:43,973 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 03:01:43,976 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:01:43,977 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-11 03:01:47,222 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 03:01:47,238 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 03:01:47,251 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 03:01:47,273 WARN L155 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__highWaterSensor 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 03:01:47,279 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 03:01:47,283 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 03:01:47,292 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 03:01:47 BoogieIcfgContainer [2024-10-11 03:01:47,292 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 03:01:47,293 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 03:01:47,293 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 03:01:47,293 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 03:01:47,293 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:01:38" (3/4) ... [2024-10-11 03:01:47,295 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-11 03:01:47,298 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-10-11 03:01:47,298 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-10-11 03:01:47,298 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-10-11 03:01:47,298 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-10-11 03:01:47,298 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-10-11 03:01:47,298 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-10-11 03:01:47,298 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-10-11 03:01:47,298 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2024-10-11 03:01:47,298 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2024-10-11 03:01:47,298 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2024-10-11 03:01:47,307 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 37 nodes and edges [2024-10-11 03:01:47,307 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-10-11 03:01:47,308 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-11 03:01:47,308 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-11 03:01:47,309 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-11 03:01:47,410 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-11 03:01:47,411 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-11 03:01:47,411 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 03:01:47,411 INFO L158 Benchmark]: Toolchain (without parser) took 9316.13ms. Allocated memory was 169.9MB in the beginning and 297.8MB in the end (delta: 127.9MB). Free memory was 135.0MB in the beginning and 243.5MB in the end (delta: -108.5MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. [2024-10-11 03:01:47,411 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 169.9MB. Free memory is still 136.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 03:01:47,411 INFO L158 Benchmark]: CACSL2BoogieTranslator took 382.04ms. Allocated memory is still 169.9MB. Free memory was 134.8MB in the beginning and 121.6MB in the end (delta: 13.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-11 03:01:47,412 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.10ms. Allocated memory is still 169.9MB. Free memory was 121.6MB in the beginning and 118.6MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 03:01:47,412 INFO L158 Benchmark]: Boogie Preprocessor took 29.78ms. Allocated memory is still 169.9MB. Free memory was 118.6MB in the beginning and 116.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 03:01:47,412 INFO L158 Benchmark]: RCFGBuilder took 434.40ms. Allocated memory is still 169.9MB. Free memory was 116.5MB in the beginning and 119.1MB in the end (delta: -2.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-11 03:01:47,412 INFO L158 Benchmark]: TraceAbstraction took 8307.48ms. Allocated memory was 169.9MB in the beginning and 297.8MB in the end (delta: 127.9MB). Free memory was 118.2MB in the beginning and 251.9MB in the end (delta: -133.7MB). Peak memory consumption was 155.6MB. Max. memory is 16.1GB. [2024-10-11 03:01:47,413 INFO L158 Benchmark]: Witness Printer took 118.28ms. Allocated memory is still 297.8MB. Free memory was 251.9MB in the beginning and 243.5MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-11 03:01:47,414 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 169.9MB. Free memory is still 136.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 382.04ms. Allocated memory is still 169.9MB. Free memory was 134.8MB in the beginning and 121.6MB in the end (delta: 13.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.10ms. Allocated memory is still 169.9MB. Free memory was 121.6MB in the beginning and 118.6MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.78ms. Allocated memory is still 169.9MB. Free memory was 118.6MB in the beginning and 116.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 434.40ms. Allocated memory is still 169.9MB. Free memory was 116.5MB in the beginning and 119.1MB in the end (delta: -2.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 8307.48ms. Allocated memory was 169.9MB in the beginning and 297.8MB in the end (delta: 127.9MB). Free memory was 118.2MB in the beginning and 251.9MB in the end (delta: -133.7MB). Peak memory consumption was 155.6MB. Max. memory is 16.1GB. * Witness Printer took 118.28ms. Allocated memory is still 297.8MB. Free memory was 251.9MB in the beginning and 243.5MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [49] - GenericResultAtLocation [Line: 101]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [101] - GenericResultAtLocation [Line: 139]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [139] - GenericResultAtLocation [Line: 148]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [148] - GenericResultAtLocation [Line: 220]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [220] - GenericResultAtLocation [Line: 318]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [318] - GenericResultAtLocation [Line: 583]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [583] - GenericResultAtLocation [Line: 686]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [686] * 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: 144]: 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 11 procedures, 93 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.9s, OverallIterations: 10, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1716 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1671 mSDsluCounter, 2924 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1978 mSDsCounter, 642 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2645 IncrementalHoareTripleChecker+Invalid, 3287 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 642 mSolverCounterUnsat, 946 mSDtfsCounter, 2645 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 419 GetRequests, 321 SyntacticMatches, 5 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 456 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=932occurred 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: 0.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 129 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 571 NumberOfCodeBlocks, 571 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 656 ConstructedInterpolants, 0 QuantifiedInterpolants, 1264 SizeOfPredicates, 2 NumberOfNonLiveVariables, 328 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 12 InterpolantComputations, 9 PerfectInterpolantSequences, 102/136 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: 474]: Location Invariant Derived location invariant: (((((1 <= pumpRunning) && (1 == systemActive)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) || (((pumpRunning == 0) && (2 == waterLevel)) && (1 == systemActive))) - InvariantResult [Line: 163]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 164]: Loop Invariant Derived loop invariant: (((((((pumpRunning == 0) && (splverifierCounter == 0)) && (waterLevel <= 2)) && (0 == systemActive)) || ((((pumpRunning == 0) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel <= 2))) || ((((1 <= pumpRunning) && (2 == waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0))) || (((((1 <= pumpRunning) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS))) - InvariantResult [Line: 232]: Loop Invariant Derived loop invariant: 0 - ProcedureContractResult [Line: 466]: 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: 356]: 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: 610]: 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: 222]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: 0 - ProcedureContractResult [Line: 329]: 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 <= pumpRunning) && (2 == waterLevel)) && (\old(waterLevel) == 2)) || (\old(pumpRunning) != 0)) || ((pumpRunning == 0) && (\old(waterLevel) == waterLevel))) && (((((pumpRunning == 0) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) || (\old(pumpRunning) < 1)) || (((pumpRunning == \old(pumpRunning)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)))) && ((pumpRunning == 0) || (0 != systemActive))) && (((\old(waterLevel) != 2) || (\old(pumpRunning) < 1)) || (waterLevel == 1))) && ((((((\old(pumpRunning) == 0) && (0 == systemActive)) && (\old(waterLevel) <= 2)) || ((((1 == systemActive) && (1 <= \old(switchedOnBeforeTS))) && (\old(waterLevel) <= 2)) && (1 <= \old(pumpRunning)))) || (((1 == systemActive) && (\old(pumpRunning) == 0)) && (\old(waterLevel) <= 2))) || (((1 == systemActive) && (1 <= \old(pumpRunning))) && (\old(waterLevel) == 2)))) - ProcedureContractResult [Line: 364]: Procedure Contract for processEnvironment__wrappee__highWaterSensor Derived contract for procedure processEnvironment__wrappee__highWaterSensor. Requires: (((((1 <= pumpRunning) && (1 == systemActive)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) || (((pumpRunning == 0) && (1 == systemActive)) && (waterLevel <= 2))) Ensures: (((((\old(pumpRunning) != 0) || (pumpRunning == 0)) || ((1 <= pumpRunning) && (2 == waterLevel))) && ((pumpRunning == \old(pumpRunning)) || (\old(pumpRunning) < 1))) && ((((1 == systemActive) && (\old(pumpRunning) == 0)) && (waterLevel <= 2)) || ((((1 == systemActive) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) && (1 <= \old(pumpRunning))))) - ProcedureContractResult [Line: 598]: 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)) && ((2 == waterLevel) || (\old(waterLevel) != 1))) && (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: 390]: 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: (((((\old(pumpRunning) != 0) || (pumpRunning == 0)) || ((1 <= pumpRunning) && (2 == waterLevel))) && ((((1 == systemActive) && (\old(pumpRunning) == 0)) && (waterLevel <= 2)) || ((((1 == systemActive) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) && (1 <= \old(pumpRunning))))) && (((pumpRunning == \old(pumpRunning)) || (pumpRunning == 0)) || (\old(pumpRunning) < 1))) - ProcedureContractResult [Line: 485]: 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: 474]: 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 03:01:47,440 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