./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_spec4_product07.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product07.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 95fb667c50ce40c1d7afa8c63adccd31fb19279643632f3d92a2ca85ced3f32b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 19:41:31,233 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 19:41:31,307 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-12 19:41:31,312 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 19:41:31,313 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 19:41:31,344 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 19:41:31,345 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 19:41:31,345 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 19:41:31,346 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 19:41:31,347 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 19:41:31,347 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 19:41:31,347 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 19:41:31,348 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 19:41:31,350 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 19:41:31,350 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 19:41:31,351 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 19:41:31,351 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 19:41:31,351 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 19:41:31,351 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 19:41:31,351 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 19:41:31,352 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 19:41:31,356 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 19:41:31,356 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 19:41:31,356 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 19:41:31,357 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 19:41:31,357 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 19:41:31,358 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 19:41:31,359 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 19:41:31,359 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 19:41:31,359 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 19:41:31,360 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 19:41:31,360 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 19:41:31,360 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 19:41:31,360 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 19:41:31,361 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 19:41:31,361 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 19:41:31,362 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 19:41:31,362 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 19:41:31,363 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 19:41:31,363 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 19:41:31,363 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 19:41:31,363 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 19:41:31,363 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 95fb667c50ce40c1d7afa8c63adccd31fb19279643632f3d92a2ca85ced3f32b [2024-10-12 19:41:31,625 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 19:41:31,648 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 19:41:31,651 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 19:41:31,653 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 19:41:31,653 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 19:41:31,654 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product07.cil.c [2024-10-12 19:41:33,108 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 19:41:33,321 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 19:41:33,322 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product07.cil.c [2024-10-12 19:41:33,346 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30c632b89/876593e1b51b429d905578331bb77149/FLAG7516d9279 [2024-10-12 19:41:33,360 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30c632b89/876593e1b51b429d905578331bb77149 [2024-10-12 19:41:33,362 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 19:41:33,364 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 19:41:33,365 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 19:41:33,365 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 19:41:33,372 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 19:41:33,373 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 07:41:33" (1/1) ... [2024-10-12 19:41:33,374 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4187b91d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:41:33, skipping insertion in model container [2024-10-12 19:41:33,376 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 07:41:33" (1/1) ... [2024-10-12 19:41:33,428 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 19:41:33,619 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_spec4_product07.cil.c[3350,3363] [2024-10-12 19:41:33,691 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 19:41:33,709 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 19:41:33,718 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] [2024-10-12 19:41:33,720 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [87] [2024-10-12 19:41:33,720 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [188] [2024-10-12 19:41:33,720 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [197] [2024-10-12 19:41:33,720 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [281] [2024-10-12 19:41:33,721 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [308] [2024-10-12 19:41:33,721 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [674] [2024-10-12 19:41:33,721 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [742] [2024-10-12 19:41:33,736 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_spec4_product07.cil.c[3350,3363] [2024-10-12 19:41:33,787 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 19:41:33,810 INFO L204 MainTranslator]: Completed translation [2024-10-12 19:41:33,811 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:41:33 WrapperNode [2024-10-12 19:41:33,811 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 19:41:33,812 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 19:41:33,812 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 19:41:33,812 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 19:41:33,819 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:41:33" (1/1) ... [2024-10-12 19:41:33,839 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:41:33" (1/1) ... [2024-10-12 19:41:33,872 INFO L138 Inliner]: procedures = 51, calls = 94, calls flagged for inlining = 20, calls inlined = 17, statements flattened = 163 [2024-10-12 19:41:33,872 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 19:41:33,873 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 19:41:33,873 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 19:41:33,874 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 19:41:33,884 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:41:33" (1/1) ... [2024-10-12 19:41:33,884 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:41:33" (1/1) ... [2024-10-12 19:41:33,886 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:41:33" (1/1) ... [2024-10-12 19:41:33,907 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]. [2024-10-12 19:41:33,907 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:41:33" (1/1) ... [2024-10-12 19:41:33,908 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:41:33" (1/1) ... [2024-10-12 19:41:33,913 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:41:33" (1/1) ... [2024-10-12 19:41:33,920 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:41:33" (1/1) ... [2024-10-12 19:41:33,927 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:41:33" (1/1) ... [2024-10-12 19:41:33,928 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:41:33" (1/1) ... [2024-10-12 19:41:33,934 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 19:41:33,935 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 19:41:33,935 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 19:41:33,935 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 19:41:33,936 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:41:33" (1/1) ... [2024-10-12 19:41:33,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 19:41:33,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:41:33,967 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-12 19:41:33,971 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-12 19:41:34,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 19:41:34,020 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-10-12 19:41:34,020 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-10-12 19:41:34,021 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-10-12 19:41:34,021 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-10-12 19:41:34,021 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-10-12 19:41:34,021 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-10-12 19:41:34,021 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-10-12 19:41:34,021 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-10-12 19:41:34,022 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-10-12 19:41:34,022 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-10-12 19:41:34,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 19:41:34,022 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-10-12 19:41:34,023 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-10-12 19:41:34,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 19:41:34,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 19:41:34,134 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 19:41:34,142 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 19:41:34,428 INFO L? ?]: Removed 33 outVars from TransFormulas that were not future-live. [2024-10-12 19:41:34,428 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 19:41:34,487 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 19:41:34,488 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-12 19:41:34,488 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:41:34 BoogieIcfgContainer [2024-10-12 19:41:34,488 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 19:41:34,490 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 19:41:34,490 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 19:41:34,494 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 19:41:34,494 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 07:41:33" (1/3) ... [2024-10-12 19:41:34,495 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@563b23e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 07:41:34, skipping insertion in model container [2024-10-12 19:41:34,495 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:41:33" (2/3) ... [2024-10-12 19:41:34,495 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@563b23e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 07:41:34, skipping insertion in model container [2024-10-12 19:41:34,495 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:41:34" (3/3) ... [2024-10-12 19:41:34,496 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product07.cil.c [2024-10-12 19:41:34,517 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 19:41:34,517 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-12 19:41:34,577 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 19:41:34,583 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;@1ba27bc1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 19:41:34,583 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-12 19:41:34,587 INFO L276 IsEmpty]: Start isEmpty. Operand has 56 states, 38 states have (on average 1.5789473684210527) internal successors, (60), 45 states have internal predecessors, (60), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-12 19:41:34,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-12 19:41:34,594 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:41:34,595 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:41:34,596 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:41:34,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:41:34,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1664943565, now seen corresponding path program 1 times [2024-10-12 19:41:34,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:41:34,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328084955] [2024-10-12 19:41:34,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:41:34,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:41:34,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:41:34,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 19:41:34,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:41:34,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328084955] [2024-10-12 19:41:34,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328084955] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:41:34,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:41:34,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 19:41:34,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807874409] [2024-10-12 19:41:34,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:41:34,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-12 19:41:34,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:41:34,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-12 19:41:34,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-12 19:41:34,805 INFO L87 Difference]: Start difference. First operand has 56 states, 38 states have (on average 1.5789473684210527) internal successors, (60), 45 states have internal predecessors, (60), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 19:41:34,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:41:34,861 INFO L93 Difference]: Finished difference Result 110 states and 161 transitions. [2024-10-12 19:41:34,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-12 19:41:34,864 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-10-12 19:41:34,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:41:34,873 INFO L225 Difference]: With dead ends: 110 [2024-10-12 19:41:34,873 INFO L226 Difference]: Without dead ends: 51 [2024-10-12 19:41:34,876 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-12 19:41:34,880 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 19:41:34,882 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 63 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 19:41:34,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-10-12 19:41:34,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2024-10-12 19:41:34,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 35 states have (on average 1.4285714285714286) internal successors, (50), 41 states have internal predecessors, (50), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-12 19:41:34,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 69 transitions. [2024-10-12 19:41:34,922 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 69 transitions. Word has length 12 [2024-10-12 19:41:34,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:41:34,923 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 69 transitions. [2024-10-12 19:41:34,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 19:41:34,923 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 69 transitions. [2024-10-12 19:41:34,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-12 19:41:34,925 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:41:34,925 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:41:34,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-12 19:41:34,926 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:41:34,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:41:34,926 INFO L85 PathProgramCache]: Analyzing trace with hash 2097693291, now seen corresponding path program 1 times [2024-10-12 19:41:34,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:41:34,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138939136] [2024-10-12 19:41:34,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:41:34,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:41:34,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:41:35,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 19:41:35,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:41:35,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138939136] [2024-10-12 19:41:35,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138939136] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:41:35,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:41:35,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 19:41:35,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419729878] [2024-10-12 19:41:35,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:41:35,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 19:41:35,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:41:35,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 19:41:35,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 19:41:35,071 INFO L87 Difference]: Start difference. First operand 51 states and 69 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 19:41:35,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:41:35,109 INFO L93 Difference]: Finished difference Result 72 states and 96 transitions. [2024-10-12 19:41:35,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 19:41:35,110 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-10-12 19:41:35,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:41:35,111 INFO L225 Difference]: With dead ends: 72 [2024-10-12 19:41:35,112 INFO L226 Difference]: Without dead ends: 43 [2024-10-12 19:41:35,113 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 19:41:35,115 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 14 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 19:41:35,115 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 81 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 19:41:35,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-10-12 19:41:35,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2024-10-12 19:41:35,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 30 states have (on average 1.4666666666666666) internal successors, (44), 36 states have internal predecessors, (44), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2024-10-12 19:41:35,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 58 transitions. [2024-10-12 19:41:35,130 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 58 transitions. Word has length 13 [2024-10-12 19:41:35,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:41:35,130 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 58 transitions. [2024-10-12 19:41:35,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 19:41:35,131 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 58 transitions. [2024-10-12 19:41:35,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-10-12 19:41:35,131 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:41:35,132 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:41:35,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-12 19:41:35,132 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:41:35,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:41:35,132 INFO L85 PathProgramCache]: Analyzing trace with hash 813840350, now seen corresponding path program 1 times [2024-10-12 19:41:35,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:41:35,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973870292] [2024-10-12 19:41:35,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:41:35,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:41:35,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:41:35,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 19:41:35,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:41:35,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973870292] [2024-10-12 19:41:35,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973870292] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:41:35,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:41:35,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 19:41:35,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804872122] [2024-10-12 19:41:35,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:41:35,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 19:41:35,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:41:35,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 19:41:35,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 19:41:35,247 INFO L87 Difference]: Start difference. First operand 43 states and 58 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 19:41:35,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:41:35,307 INFO L93 Difference]: Finished difference Result 125 states and 171 transitions. [2024-10-12 19:41:35,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 19:41:35,308 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-10-12 19:41:35,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:41:35,310 INFO L225 Difference]: With dead ends: 125 [2024-10-12 19:41:35,310 INFO L226 Difference]: Without dead ends: 84 [2024-10-12 19:41:35,311 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 19:41:35,312 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 45 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 19:41:35,313 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 101 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 19:41:35,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-10-12 19:41:35,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 81. [2024-10-12 19:41:35,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 56 states have (on average 1.4821428571428572) internal successors, (83), 67 states have internal predecessors, (83), 14 states have call successors, (14), 10 states have call predecessors, (14), 10 states have return successors, (14), 9 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-12 19:41:35,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 111 transitions. [2024-10-12 19:41:35,337 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 111 transitions. Word has length 16 [2024-10-12 19:41:35,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:41:35,338 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 111 transitions. [2024-10-12 19:41:35,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 19:41:35,339 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 111 transitions. [2024-10-12 19:41:35,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-10-12 19:41:35,341 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:41:35,341 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:41:35,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-12 19:41:35,342 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:41:35,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:41:35,342 INFO L85 PathProgramCache]: Analyzing trace with hash 705148169, now seen corresponding path program 1 times [2024-10-12 19:41:35,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:41:35,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963481337] [2024-10-12 19:41:35,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:41:35,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:41:35,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:41:35,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 19:41:35,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:41:35,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963481337] [2024-10-12 19:41:35,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963481337] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:41:35,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:41:35,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 19:41:35,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180340068] [2024-10-12 19:41:35,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:41:35,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 19:41:35,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:41:35,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 19:41:35,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 19:41:35,499 INFO L87 Difference]: Start difference. First operand 81 states and 111 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 19:41:35,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:41:35,653 INFO L93 Difference]: Finished difference Result 229 states and 326 transitions. [2024-10-12 19:41:35,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 19:41:35,657 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-10-12 19:41:35,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:41:35,659 INFO L225 Difference]: With dead ends: 229 [2024-10-12 19:41:35,659 INFO L226 Difference]: Without dead ends: 150 [2024-10-12 19:41:35,660 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-12 19:41:35,664 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 32 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 19:41:35,664 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 137 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 19:41:35,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-10-12 19:41:35,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2024-10-12 19:41:35,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 103 states have (on average 1.4466019417475728) internal successors, (149), 122 states have internal predecessors, (149), 28 states have call successors, (28), 20 states have call predecessors, (28), 18 states have return successors, (30), 16 states have call predecessors, (30), 28 states have call successors, (30) [2024-10-12 19:41:35,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 207 transitions. [2024-10-12 19:41:35,705 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 207 transitions. Word has length 19 [2024-10-12 19:41:35,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:41:35,708 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 207 transitions. [2024-10-12 19:41:35,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 19:41:35,709 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 207 transitions. [2024-10-12 19:41:35,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-10-12 19:41:35,710 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:41:35,710 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:41:35,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-12 19:41:35,711 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:41:35,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:41:35,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1538960654, now seen corresponding path program 1 times [2024-10-12 19:41:35,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:41:35,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321453038] [2024-10-12 19:41:35,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:41:35,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:41:35,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:41:35,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 19:41:35,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:41:35,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321453038] [2024-10-12 19:41:35,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321453038] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:41:35,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:41:35,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 19:41:35,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131007845] [2024-10-12 19:41:35,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:41:35,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 19:41:35,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:41:35,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 19:41:35,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 19:41:35,795 INFO L87 Difference]: Start difference. First operand 150 states and 207 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 19:41:35,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:41:35,841 INFO L93 Difference]: Finished difference Result 268 states and 372 transitions. [2024-10-12 19:41:35,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 19:41:35,843 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2024-10-12 19:41:35,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:41:35,844 INFO L225 Difference]: With dead ends: 268 [2024-10-12 19:41:35,846 INFO L226 Difference]: Without dead ends: 120 [2024-10-12 19:41:35,847 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 19:41:35,850 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 30 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 19:41:35,851 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 33 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 19:41:35,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-10-12 19:41:35,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 118. [2024-10-12 19:41:35,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 87 states have (on average 1.3218390804597702) internal successors, (115), 94 states have internal predecessors, (115), 16 states have call successors, (16), 16 states have call predecessors, (16), 14 states have return successors, (16), 14 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-12 19:41:35,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 147 transitions. [2024-10-12 19:41:35,880 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 147 transitions. Word has length 21 [2024-10-12 19:41:35,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:41:35,883 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 147 transitions. [2024-10-12 19:41:35,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 19:41:35,883 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 147 transitions. [2024-10-12 19:41:35,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-10-12 19:41:35,885 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:41:35,885 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:41:35,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-12 19:41:35,885 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:41:35,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:41:35,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1207164067, now seen corresponding path program 1 times [2024-10-12 19:41:35,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:41:35,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056860287] [2024-10-12 19:41:35,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:41:35,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:41:35,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:41:35,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-12 19:41:35,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:41:35,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 19:41:35,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:41:35,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056860287] [2024-10-12 19:41:35,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056860287] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:41:35,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:41:35,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 19:41:35,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964752627] [2024-10-12 19:41:35,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:41:35,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 19:41:35,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:41:35,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 19:41:35,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 19:41:35,974 INFO L87 Difference]: Start difference. First operand 118 states and 147 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-12 19:41:36,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:41:36,086 INFO L93 Difference]: Finished difference Result 122 states and 151 transitions. [2024-10-12 19:41:36,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 19:41:36,087 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2024-10-12 19:41:36,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:41:36,088 INFO L225 Difference]: With dead ends: 122 [2024-10-12 19:41:36,088 INFO L226 Difference]: Without dead ends: 0 [2024-10-12 19:41:36,089 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:41:36,090 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 36 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 19:41:36,092 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 62 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 19:41:36,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-12 19:41:36,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-12 19:41:36,093 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) [2024-10-12 19:41:36,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-12 19:41:36,095 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2024-10-12 19:41:36,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:41:36,095 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-12 19:41:36,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-12 19:41:36,095 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-12 19:41:36,095 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-12 19:41:36,098 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-12 19:41:36,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-12 19:41:36,101 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-10-12 19:41:36,103 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-12 19:41:36,471 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-12 19:41:36,505 WARN L155 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (and (= ~pumpRunning~0 0) (= |old(~pumpRunning~0)| 0) (= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (= ~pumpRunning~0 0) [2024-10-12 19:41:36,510 WARN L155 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (= ~pumpRunning~0 0) [2024-10-12 19:41:36,511 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 07:41:36 BoogieIcfgContainer [2024-10-12 19:41:36,512 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-12 19:41:36,512 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-12 19:41:36,512 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-12 19:41:36,514 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-12 19:41:36,514 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:41:34" (3/4) ... [2024-10-12 19:41:36,516 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-12 19:41:36,520 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-10-12 19:41:36,520 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-10-12 19:41:36,520 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-10-12 19:41:36,520 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-10-12 19:41:36,520 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-10-12 19:41:36,520 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-10-12 19:41:36,528 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 31 nodes and edges [2024-10-12 19:41:36,529 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-10-12 19:41:36,529 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-12 19:41:36,530 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-12 19:41:36,530 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-12 19:41:36,631 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-12 19:41:36,632 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-12 19:41:36,632 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-12 19:41:36,633 INFO L158 Benchmark]: Toolchain (without parser) took 3269.12ms. Allocated memory was 172.0MB in the beginning and 211.8MB in the end (delta: 39.8MB). Free memory was 138.2MB in the beginning and 105.7MB in the end (delta: 32.5MB). Peak memory consumption was 68.9MB. Max. memory is 16.1GB. [2024-10-12 19:41:36,633 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 172.0MB. Free memory is still 136.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 19:41:36,633 INFO L158 Benchmark]: CACSL2BoogieTranslator took 446.29ms. Allocated memory is still 172.0MB. Free memory was 138.0MB in the beginning and 125.1MB in the end (delta: 12.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-12 19:41:36,634 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.79ms. Allocated memory is still 172.0MB. Free memory was 125.1MB in the beginning and 123.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 19:41:36,634 INFO L158 Benchmark]: Boogie Preprocessor took 60.92ms. Allocated memory is still 172.0MB. Free memory was 123.1MB in the beginning and 121.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 19:41:36,634 INFO L158 Benchmark]: RCFGBuilder took 553.73ms. Allocated memory is still 172.0MB. Free memory was 121.0MB in the beginning and 126.6MB in the end (delta: -5.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-12 19:41:36,634 INFO L158 Benchmark]: TraceAbstraction took 2021.42ms. Allocated memory was 172.0MB in the beginning and 211.8MB in the end (delta: 39.8MB). Free memory was 125.5MB in the beginning and 112.0MB in the end (delta: 13.4MB). Peak memory consumption was 52.2MB. Max. memory is 16.1GB. [2024-10-12 19:41:36,635 INFO L158 Benchmark]: Witness Printer took 119.99ms. Allocated memory is still 211.8MB. Free memory was 112.0MB in the beginning and 105.7MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-12 19:41:36,636 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 172.0MB. Free memory is still 136.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 446.29ms. Allocated memory is still 172.0MB. Free memory was 138.0MB in the beginning and 125.1MB in the end (delta: 12.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.79ms. Allocated memory is still 172.0MB. Free memory was 125.1MB in the beginning and 123.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.92ms. Allocated memory is still 172.0MB. Free memory was 123.1MB in the beginning and 121.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 553.73ms. Allocated memory is still 172.0MB. Free memory was 121.0MB in the beginning and 126.6MB in the end (delta: -5.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2021.42ms. Allocated memory was 172.0MB in the beginning and 211.8MB in the end (delta: 39.8MB). Free memory was 125.5MB in the beginning and 112.0MB in the end (delta: 13.4MB). Peak memory consumption was 52.2MB. Max. memory is 16.1GB. * Witness Printer took 119.99ms. Allocated memory is still 211.8MB. Free memory was 112.0MB in the beginning and 105.7MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [87] - GenericResultAtLocation [Line: 188]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [188] - GenericResultAtLocation [Line: 197]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [197] - GenericResultAtLocation [Line: 281]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [281] - GenericResultAtLocation [Line: 308]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [308] - GenericResultAtLocation [Line: 674]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [674] - GenericResultAtLocation [Line: 742]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [742] * 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: 193]: 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 7 procedures, 56 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 162 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 157 mSDsluCounter, 477 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 207 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 139 IncrementalHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 270 mSDtfsCounter, 139 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=150occurred in iteration=4, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 104 NumberOfCodeBlocks, 104 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 98 ConstructedInterpolants, 0 QuantifiedInterpolants, 220 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 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: 685]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 686]: Loop Invariant Derived loop invariant: ((pumpRunning == 0) && (splverifierCounter == 0)) - InvariantResult [Line: 100]: Loop Invariant Derived loop invariant: 0 - ProcedureContractResult [Line: 813]: Procedure Contract for deactivatePump Derived contract for procedure deactivatePump. Requires: 0 Ensures: 0 - ProcedureContractResult [Line: 772]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: (pumpRunning == 0) Ensures: (pumpRunning == 0) - ProcedureContractResult [Line: 228]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Requires: (pumpRunning == 0) Ensures: (pumpRunning == 0) - ProcedureContractResult [Line: 748]: Procedure Contract for timeShift Derived contract for procedure timeShift. Requires: (pumpRunning == 0) Ensures: (((pumpRunning == 0) && (\old(pumpRunning) == 0)) && (\old(waterLevel) == waterLevel)) - ProcedureContractResult [Line: 90]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: 0 - ProcedureContractResult [Line: 216]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: (pumpRunning == 0) Ensures: (pumpRunning == 0) RESULT: Ultimate proved your program to be correct! [2024-10-12 19:41:36,665 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/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