./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_product28.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_spec4_product28.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 55e5a3fffd3d06d466040a49171ceaa2c85a9bef51e649104f1e437fbb462cec --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 03:00:12,967 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 03:00:13,028 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 03:00:13,034 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 03:00:13,035 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 03:00:13,082 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 03:00:13,084 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 03:00:13,084 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 03:00:13,084 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 03:00:13,086 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 03:00:13,104 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 03:00:13,104 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 03:00:13,105 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 03:00:13,108 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 03:00:13,109 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 03:00:13,109 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 03:00:13,109 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 03:00:13,109 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 03:00:13,109 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 03:00:13,110 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 03:00:13,110 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 03:00:13,110 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 03:00:13,110 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 03:00:13,110 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 03:00:13,111 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 03:00:13,111 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 03:00:13,111 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 03:00:13,111 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 03:00:13,111 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 03:00:13,111 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 03:00:13,112 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 03:00:13,112 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 03:00:13,112 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 03:00:13,112 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 03:00:13,112 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 03:00:13,112 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 03:00:13,113 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 03:00:13,113 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 03:00:13,113 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 03:00:13,113 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 03:00:13,113 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 03:00:13,114 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 03:00:13,114 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 55e5a3fffd3d06d466040a49171ceaa2c85a9bef51e649104f1e437fbb462cec [2024-10-11 03:00:13,346 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 03:00:13,365 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 03:00:13,367 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 03:00:13,368 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 03:00:13,368 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 03:00:13,369 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product28.cil.c [2024-10-11 03:00:14,920 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 03:00:15,159 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 03:00:15,159 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product28.cil.c [2024-10-11 03:00:15,187 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/9902a7296/4fc7caa14a97490a9e5816873bc0c0f7/FLAGa99cab19d [2024-10-11 03:00:15,208 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/9902a7296/4fc7caa14a97490a9e5816873bc0c0f7 [2024-10-11 03:00:15,211 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 03:00:15,212 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 03:00:15,218 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 03:00:15,218 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 03:00:15,228 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 03:00:15,229 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:00:15" (1/1) ... [2024-10-11 03:00:15,232 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b74be09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:15, skipping insertion in model container [2024-10-11 03:00:15,232 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:00:15" (1/1) ... [2024-10-11 03:00:15,287 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 03:00:15,490 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_product28.cil.c[1605,1618] [2024-10-11 03:00:15,574 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 03:00:15,587 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 03:00:15,595 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] [2024-10-11 03:00:15,596 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [58] [2024-10-11 03:00:15,596 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [424] [2024-10-11 03:00:15,597 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [452] [2024-10-11 03:00:15,597 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [490] [2024-10-11 03:00:15,597 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [693] [2024-10-11 03:00:15,597 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [784] [2024-10-11 03:00:15,597 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [881] [2024-10-11 03:00:15,602 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_product28.cil.c[1605,1618] [2024-10-11 03:00:15,666 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 03:00:15,689 INFO L204 MainTranslator]: Completed translation [2024-10-11 03:00:15,689 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:15 WrapperNode [2024-10-11 03:00:15,689 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 03:00:15,691 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 03:00:15,691 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 03:00:15,691 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 03:00:15,699 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:15" (1/1) ... [2024-10-11 03:00:15,718 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:15" (1/1) ... [2024-10-11 03:00:15,763 INFO L138 Inliner]: procedures = 55, calls = 98, calls flagged for inlining = 24, calls inlined = 18, statements flattened = 172 [2024-10-11 03:00:15,764 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 03:00:15,765 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 03:00:15,765 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 03:00:15,765 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 03:00:15,776 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:15" (1/1) ... [2024-10-11 03:00:15,777 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:15" (1/1) ... [2024-10-11 03:00:15,779 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:15" (1/1) ... [2024-10-11 03:00:15,799 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 03:00:15,800 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:15" (1/1) ... [2024-10-11 03:00:15,800 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:15" (1/1) ... [2024-10-11 03:00:15,810 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:15" (1/1) ... [2024-10-11 03:00:15,816 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:15" (1/1) ... [2024-10-11 03:00:15,817 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:15" (1/1) ... [2024-10-11 03:00:15,818 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:15" (1/1) ... [2024-10-11 03:00:15,821 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 03:00:15,822 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 03:00:15,822 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 03:00:15,822 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 03:00:15,824 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:15" (1/1) ... [2024-10-11 03:00:15,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 03:00:15,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:00:15,861 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 03:00:15,865 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 03:00:15,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 03:00:15,912 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-10-11 03:00:15,912 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-10-11 03:00:15,913 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-10-11 03:00:15,913 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-10-11 03:00:15,913 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-10-11 03:00:15,913 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-10-11 03:00:15,913 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-10-11 03:00:15,913 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-10-11 03:00:15,913 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-10-11 03:00:15,913 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-10-11 03:00:15,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 03:00:15,914 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-10-11 03:00:15,914 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-10-11 03:00:15,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 03:00:15,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 03:00:16,003 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 03:00:16,006 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 03:00:16,293 INFO L? ?]: Removed 36 outVars from TransFormulas that were not future-live. [2024-10-11 03:00:16,293 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 03:00:16,456 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 03:00:16,460 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-11 03:00:16,460 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:00:16 BoogieIcfgContainer [2024-10-11 03:00:16,461 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 03:00:16,462 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 03:00:16,462 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 03:00:16,472 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 03:00:16,476 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 03:00:15" (1/3) ... [2024-10-11 03:00:16,477 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b5d3cc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:00:16, skipping insertion in model container [2024-10-11 03:00:16,477 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:00:15" (2/3) ... [2024-10-11 03:00:16,477 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b5d3cc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:00:16, skipping insertion in model container [2024-10-11 03:00:16,478 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:00:16" (3/3) ... [2024-10-11 03:00:16,480 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product28.cil.c [2024-10-11 03:00:16,516 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 03:00:16,520 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 03:00:16,632 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 03:00:16,639 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;@48b37ce6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 03:00:16,640 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 03:00:16,644 INFO L276 IsEmpty]: Start isEmpty. Operand has 58 states, 40 states have (on average 1.575) internal successors, (63), 47 states have internal predecessors, (63), 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) [2024-10-11 03:00:16,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-11 03:00:16,654 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:00:16,655 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:00:16,655 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:00:16,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:00:16,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1545225184, now seen corresponding path program 1 times [2024-10-11 03:00:16,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:00:16,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433030087] [2024-10-11 03:00:16,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:00:16,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:00:16,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:16,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:00:16,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:00:16,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433030087] [2024-10-11 03:00:16,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433030087] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:00:16,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:00:16,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 03:00:16,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870241743] [2024-10-11 03:00:16,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:00:16,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 03:00:16,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:00:16,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 03:00:16,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 03:00:16,940 INFO L87 Difference]: Start difference. First operand has 58 states, 40 states have (on average 1.575) internal successors, (63), 47 states have internal predecessors, (63), 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) [2024-10-11 03:00:17,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:00:17,008 INFO L93 Difference]: Finished difference Result 114 states and 167 transitions. [2024-10-11 03:00:17,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 03:00:17,014 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 [2024-10-11 03:00:17,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:00:17,022 INFO L225 Difference]: With dead ends: 114 [2024-10-11 03:00:17,022 INFO L226 Difference]: Without dead ends: 53 [2024-10-11 03:00:17,025 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 [2024-10-11 03:00:17,027 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:00:17,027 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 64 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:00:17,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2024-10-11 03:00:17,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2024-10-11 03:00:17,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 37 states have (on average 1.4324324324324325) internal successors, (53), 43 states have internal predecessors, (53), 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) [2024-10-11 03:00:17,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 72 transitions. [2024-10-11 03:00:17,062 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 72 transitions. Word has length 12 [2024-10-11 03:00:17,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:00:17,063 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 72 transitions. [2024-10-11 03:00:17,064 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) [2024-10-11 03:00:17,064 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 72 transitions. [2024-10-11 03:00:17,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-11 03:00:17,065 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:00:17,065 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:00:17,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 03:00:17,066 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:00:17,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:00:17,066 INFO L85 PathProgramCache]: Analyzing trace with hash 379268383, now seen corresponding path program 1 times [2024-10-11 03:00:17,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:00:17,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777129594] [2024-10-11 03:00:17,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:00:17,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:00:17,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:17,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:00:17,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:00:17,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777129594] [2024-10-11 03:00:17,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777129594] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:00:17,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:00:17,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:00:17,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894862760] [2024-10-11 03:00:17,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:00:17,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:00:17,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:00:17,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:00:17,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:00:17,163 INFO L87 Difference]: Start difference. First operand 53 states and 72 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) [2024-10-11 03:00:17,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:00:17,226 INFO L93 Difference]: Finished difference Result 76 states and 102 transitions. [2024-10-11 03:00:17,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:00:17,226 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 [2024-10-11 03:00:17,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:00:17,227 INFO L225 Difference]: With dead ends: 76 [2024-10-11 03:00:17,227 INFO L226 Difference]: Without dead ends: 45 [2024-10-11 03:00:17,228 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 [2024-10-11 03:00:17,229 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 14 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:00:17,229 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 84 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:00:17,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-10-11 03:00:17,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2024-10-11 03:00:17,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 32 states have (on average 1.46875) internal successors, (47), 38 states have internal predecessors, (47), 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) [2024-10-11 03:00:17,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 61 transitions. [2024-10-11 03:00:17,245 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 61 transitions. Word has length 13 [2024-10-11 03:00:17,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:00:17,246 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 61 transitions. [2024-10-11 03:00:17,246 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) [2024-10-11 03:00:17,246 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 61 transitions. [2024-10-11 03:00:17,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-10-11 03:00:17,247 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:00:17,248 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:00:17,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 03:00:17,252 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:00:17,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:00:17,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1759863489, now seen corresponding path program 1 times [2024-10-11 03:00:17,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:00:17,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130820267] [2024-10-11 03:00:17,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:00:17,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:00:17,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:17,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:00:17,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:00:17,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130820267] [2024-10-11 03:00:17,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130820267] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:00:17,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:00:17,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:00:17,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734548985] [2024-10-11 03:00:17,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:00:17,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:00:17,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:00:17,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:00:17,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:00:17,439 INFO L87 Difference]: Start difference. First operand 45 states and 61 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 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) [2024-10-11 03:00:17,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:00:17,537 INFO L93 Difference]: Finished difference Result 131 states and 180 transitions. [2024-10-11 03:00:17,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:00:17,538 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 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 [2024-10-11 03:00:17,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:00:17,544 INFO L225 Difference]: With dead ends: 131 [2024-10-11 03:00:17,545 INFO L226 Difference]: Without dead ends: 88 [2024-10-11 03:00:17,545 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 [2024-10-11 03:00:17,546 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 55 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:00:17,546 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 103 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:00:17,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-10-11 03:00:17,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 85. [2024-10-11 03:00:17,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 60 states have (on average 1.4833333333333334) internal successors, (89), 71 states have internal predecessors, (89), 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) [2024-10-11 03:00:17,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 117 transitions. [2024-10-11 03:00:17,578 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 117 transitions. Word has length 16 [2024-10-11 03:00:17,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:00:17,579 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 117 transitions. [2024-10-11 03:00:17,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 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) [2024-10-11 03:00:17,579 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 117 transitions. [2024-10-11 03:00:17,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-10-11 03:00:17,580 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:00:17,581 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:00:17,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 03:00:17,581 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:00:17,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:00:17,585 INFO L85 PathProgramCache]: Analyzing trace with hash -2100786603, now seen corresponding path program 1 times [2024-10-11 03:00:17,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:00:17,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274086387] [2024-10-11 03:00:17,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:00:17,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:00:17,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:17,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:00:17,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:00:17,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274086387] [2024-10-11 03:00:17,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274086387] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:00:17,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:00:17,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:00:17,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285447059] [2024-10-11 03:00:17,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:00:17,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 03:00:17,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:00:17,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 03:00:17,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 03:00:17,773 INFO L87 Difference]: Start difference. First operand 85 states and 117 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) [2024-10-11 03:00:17,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:00:17,889 INFO L93 Difference]: Finished difference Result 241 states and 344 transitions. [2024-10-11 03:00:17,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 03:00:17,892 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 [2024-10-11 03:00:17,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:00:17,894 INFO L225 Difference]: With dead ends: 241 [2024-10-11 03:00:17,894 INFO L226 Difference]: Without dead ends: 158 [2024-10-11 03:00:17,902 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 [2024-10-11 03:00:17,903 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 35 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:00:17,906 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 140 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:00:17,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2024-10-11 03:00:17,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2024-10-11 03:00:17,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 111 states have (on average 1.4504504504504505) internal successors, (161), 130 states have internal predecessors, (161), 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) [2024-10-11 03:00:17,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 219 transitions. [2024-10-11 03:00:17,973 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 219 transitions. Word has length 19 [2024-10-11 03:00:17,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:00:17,974 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 219 transitions. [2024-10-11 03:00:17,974 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) [2024-10-11 03:00:17,974 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 219 transitions. [2024-10-11 03:00:17,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-10-11 03:00:17,975 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:00:17,975 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] [2024-10-11 03:00:17,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 03:00:17,976 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:00:17,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:00:17,982 INFO L85 PathProgramCache]: Analyzing trace with hash 807549978, now seen corresponding path program 1 times [2024-10-11 03:00:17,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:00:17,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299683873] [2024-10-11 03:00:17,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:00:17,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:00:18,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:18,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:00:18,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:00:18,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299683873] [2024-10-11 03:00:18,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299683873] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:00:18,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:00:18,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 03:00:18,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039222709] [2024-10-11 03:00:18,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:00:18,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:00:18,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:00:18,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:00:18,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:00:18,102 INFO L87 Difference]: Start difference. First operand 158 states and 219 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) [2024-10-11 03:00:18,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:00:18,166 INFO L93 Difference]: Finished difference Result 276 states and 384 transitions. [2024-10-11 03:00:18,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:00:18,167 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 [2024-10-11 03:00:18,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:00:18,174 INFO L225 Difference]: With dead ends: 276 [2024-10-11 03:00:18,174 INFO L226 Difference]: Without dead ends: 120 [2024-10-11 03:00:18,176 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 [2024-10-11 03:00:18,177 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 30 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:00:18,177 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 32 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:00:18,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-10-11 03:00:18,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 118. [2024-10-11 03:00:18,221 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) [2024-10-11 03:00:18,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 147 transitions. [2024-10-11 03:00:18,227 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 147 transitions. Word has length 21 [2024-10-11 03:00:18,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:00:18,228 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 147 transitions. [2024-10-11 03:00:18,228 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) [2024-10-11 03:00:18,228 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 147 transitions. [2024-10-11 03:00:18,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-10-11 03:00:18,229 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:00:18,231 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] [2024-10-11 03:00:18,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 03:00:18,231 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:00:18,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:00:18,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1815527855, now seen corresponding path program 1 times [2024-10-11 03:00:18,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:00:18,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991818339] [2024-10-11 03:00:18,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:00:18,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:00:18,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:18,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 03:00:18,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:00:18,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:00:18,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:00:18,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991818339] [2024-10-11 03:00:18,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991818339] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:00:18,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:00:18,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 03:00:18,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071400908] [2024-10-11 03:00:18,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:00:18,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:00:18,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:00:18,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:00:18,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:00:18,424 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) [2024-10-11 03:00:18,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:00:18,552 INFO L93 Difference]: Finished difference Result 122 states and 151 transitions. [2024-10-11 03:00:18,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 03:00:18,553 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 [2024-10-11 03:00:18,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:00:18,553 INFO L225 Difference]: With dead ends: 122 [2024-10-11 03:00:18,554 INFO L226 Difference]: Without dead ends: 0 [2024-10-11 03:00:18,586 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 [2024-10-11 03:00:18,587 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 36 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:00:18,587 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 59 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:00:18,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-11 03:00:18,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-11 03:00:18,587 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 03:00:18,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-11 03:00:18,588 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2024-10-11 03:00:18,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:00:18,588 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-11 03:00:18,588 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) [2024-10-11 03:00:18,588 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-11 03:00:18,588 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-11 03:00:18,600 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-11 03:00:18,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 03:00:18,603 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-10-11 03:00:18,609 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-11 03:00:19,125 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 03:00:19,205 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) [2024-10-11 03:00:19,208 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) [2024-10-11 03:00:19,214 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 03:00:19 BoogieIcfgContainer [2024-10-11 03:00:19,214 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 03:00:19,215 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 03:00:19,215 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 03:00:19,215 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 03:00:19,216 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:00:16" (3/4) ... [2024-10-11 03:00:19,218 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-11 03:00:19,226 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-10-11 03:00:19,229 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-10-11 03:00:19,229 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-10-11 03:00:19,229 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-10-11 03:00:19,230 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-10-11 03:00:19,230 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-10-11 03:00:19,246 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 31 nodes and edges [2024-10-11 03:00:19,247 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-10-11 03:00:19,247 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-11 03:00:19,248 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-11 03:00:19,248 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-11 03:00:19,406 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-11 03:00:19,406 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-11 03:00:19,406 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 03:00:19,407 INFO L158 Benchmark]: Toolchain (without parser) took 4194.64ms. Allocated memory is still 243.3MB. Free memory was 173.1MB in the beginning and 176.9MB in the end (delta: -3.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 03:00:19,407 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 121.6MB. Free memory is still 88.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 03:00:19,407 INFO L158 Benchmark]: CACSL2BoogieTranslator took 471.61ms. Allocated memory is still 243.3MB. Free memory was 173.1MB in the beginning and 152.0MB in the end (delta: 21.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-11 03:00:19,408 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.42ms. Allocated memory is still 243.3MB. Free memory was 152.0MB in the beginning and 149.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 03:00:19,408 INFO L158 Benchmark]: Boogie Preprocessor took 56.17ms. Allocated memory is still 243.3MB. Free memory was 149.9MB in the beginning and 147.6MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 03:00:19,408 INFO L158 Benchmark]: RCFGBuilder took 638.50ms. Allocated memory is still 243.3MB. Free memory was 147.6MB in the beginning and 207.1MB in the end (delta: -59.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-11 03:00:19,409 INFO L158 Benchmark]: TraceAbstraction took 2751.86ms. Allocated memory is still 243.3MB. Free memory was 206.0MB in the beginning and 184.2MB in the end (delta: 21.8MB). Peak memory consumption was 24.9MB. Max. memory is 16.1GB. [2024-10-11 03:00:19,409 INFO L158 Benchmark]: Witness Printer took 191.76ms. Allocated memory is still 243.3MB. Free memory was 184.2MB in the beginning and 176.9MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-11 03:00:19,410 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 121.6MB. Free memory is still 88.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 471.61ms. Allocated memory is still 243.3MB. Free memory was 173.1MB in the beginning and 152.0MB in the end (delta: 21.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.42ms. Allocated memory is still 243.3MB. Free memory was 152.0MB in the beginning and 149.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.17ms. Allocated memory is still 243.3MB. Free memory was 149.9MB in the beginning and 147.6MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 638.50ms. Allocated memory is still 243.3MB. Free memory was 147.6MB in the beginning and 207.1MB in the end (delta: -59.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 2751.86ms. Allocated memory is still 243.3MB. Free memory was 206.0MB in the beginning and 184.2MB in the end (delta: 21.8MB). Peak memory consumption was 24.9MB. Max. memory is 16.1GB. * Witness Printer took 191.76ms. Allocated memory is still 243.3MB. Free memory was 184.2MB in the beginning and 176.9MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] - GenericResultAtLocation [Line: 58]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [58] - GenericResultAtLocation [Line: 424]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [424] - GenericResultAtLocation [Line: 452]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [452] - GenericResultAtLocation [Line: 490]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [490] - GenericResultAtLocation [Line: 693]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [693] - GenericResultAtLocation [Line: 784]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [784] - GenericResultAtLocation [Line: 881]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [881] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 54]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 58 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 175 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 170 mSDsluCounter, 482 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 210 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 157 IncrementalHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 272 mSDtfsCounter, 157 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=158occurred 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: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 104 NumberOfCodeBlocks, 104 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 98 ConstructedInterpolants, 0 QuantifiedInterpolants, 204 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: 891]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 796]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 892]: Loop Invariant Derived loop invariant: ((pumpRunning == 0) && (splverifierCounter == 0)) - ProcedureContractResult [Line: 587]: Procedure Contract for deactivatePump Derived contract for procedure deactivatePump. Requires: 0 Ensures: 0 - ProcedureContractResult [Line: 528]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: (pumpRunning == 0) Ensures: (pumpRunning == 0) - ProcedureContractResult [Line: 722]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Requires: (pumpRunning == 0) Ensures: (pumpRunning == 0) - ProcedureContractResult [Line: 786]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: 0 - ProcedureContractResult [Line: 504]: Procedure Contract for timeShift Derived contract for procedure timeShift. Requires: (pumpRunning == 0) Ensures: (((pumpRunning == 0) && (\old(pumpRunning) == 0)) && (\old(waterLevel) == waterLevel)) - ProcedureContractResult [Line: 710]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: (pumpRunning == 0) Ensures: (pumpRunning == 0) RESULT: Ultimate proved your program to be correct! [2024-10-11 03:00:19,443 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE