./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product44.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec5_product44.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 f18c518732faf536b365bed3360055c2f4eb753a861011ef1bbe74f5b721db8d --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 14:21:44,694 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 14:21:44,769 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 14:21:44,773 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 14:21:44,773 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 14:21:44,796 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 14:21:44,797 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 14:21:44,797 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 14:21:44,798 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 14:21:44,798 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 14:21:44,798 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 14:21:44,799 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 14:21:44,799 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 14:21:44,800 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 14:21:44,800 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 14:21:44,801 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 14:21:44,801 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 14:21:44,801 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 14:21:44,802 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 14:21:44,802 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 14:21:44,802 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 14:21:44,803 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 14:21:44,803 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 14:21:44,803 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 14:21:44,804 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 14:21:44,804 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 14:21:44,804 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 14:21:44,805 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 14:21:44,805 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 14:21:44,805 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 14:21:44,805 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 14:21:44,806 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 14:21:44,810 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:21:44,811 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 14:21:44,811 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 14:21:44,811 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 14:21:44,811 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 14:21:44,812 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 14:21:44,812 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 14:21:44,814 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 14:21:44,815 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 14:21:44,815 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 14:21:44,815 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f18c518732faf536b365bed3360055c2f4eb753a861011ef1bbe74f5b721db8d [2024-11-18 14:21:45,055 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 14:21:45,082 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 14:21:45,084 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 14:21:45,086 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 14:21:45,086 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 14:21:45,087 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product44.cil.c [2024-11-18 14:21:46,526 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 14:21:46,749 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 14:21:46,749 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product44.cil.c [2024-11-18 14:21:46,762 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0253c0130/580a66e72992449ea46a4c3476d9b760/FLAG2620cd4ad [2024-11-18 14:21:46,775 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0253c0130/580a66e72992449ea46a4c3476d9b760 [2024-11-18 14:21:46,777 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 14:21:46,778 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 14:21:46,780 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 14:21:46,780 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 14:21:46,786 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 14:21:46,786 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:21:46" (1/1) ... [2024-11-18 14:21:46,787 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55e84619 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:46, skipping insertion in model container [2024-11-18 14:21:46,788 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:21:46" (1/1) ... [2024-11-18 14:21:46,839 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 14:21:47,149 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product44.cil.c[18005,18018] [2024-11-18 14:21:47,158 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:21:47,172 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 14:21:47,181 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] [2024-11-18 14:21:47,183 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [150] [2024-11-18 14:21:47,183 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [516] [2024-11-18 14:21:47,183 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [721] [2024-11-18 14:21:47,183 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [791] [2024-11-18 14:21:47,183 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [829] [2024-11-18 14:21:47,183 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [927] [2024-11-18 14:21:47,184 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [936] [2024-11-18 14:21:47,259 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product44.cil.c[18005,18018] [2024-11-18 14:21:47,263 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:21:47,289 INFO L204 MainTranslator]: Completed translation [2024-11-18 14:21:47,289 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:47 WrapperNode [2024-11-18 14:21:47,290 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 14:21:47,291 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 14:21:47,291 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 14:21:47,291 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 14:21:47,297 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:47" (1/1) ... [2024-11-18 14:21:47,309 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:47" (1/1) ... [2024-11-18 14:21:47,338 INFO L138 Inliner]: procedures = 57, calls = 101, calls flagged for inlining = 27, calls inlined = 24, statements flattened = 208 [2024-11-18 14:21:47,338 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 14:21:47,339 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 14:21:47,339 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 14:21:47,339 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 14:21:47,354 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:47" (1/1) ... [2024-11-18 14:21:47,354 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:47" (1/1) ... [2024-11-18 14:21:47,356 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:47" (1/1) ... [2024-11-18 14:21:47,384 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-18 14:21:47,384 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:47" (1/1) ... [2024-11-18 14:21:47,385 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:47" (1/1) ... [2024-11-18 14:21:47,396 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:47" (1/1) ... [2024-11-18 14:21:47,400 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:47" (1/1) ... [2024-11-18 14:21:47,401 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:47" (1/1) ... [2024-11-18 14:21:47,402 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:47" (1/1) ... [2024-11-18 14:21:47,404 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 14:21:47,407 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 14:21:47,407 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 14:21:47,407 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 14:21:47,408 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:47" (1/1) ... [2024-11-18 14:21:47,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:21:47,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:21:47,482 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 14:21:47,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 14:21:47,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 14:21:47,557 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-18 14:21:47,557 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-18 14:21:47,558 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-18 14:21:47,558 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-18 14:21:47,558 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-18 14:21:47,558 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-18 14:21:47,558 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-18 14:21:47,558 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-18 14:21:47,558 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2024-11-18 14:21:47,559 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2024-11-18 14:21:47,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 14:21:47,559 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-18 14:21:47,559 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-18 14:21:47,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 14:21:47,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 14:21:47,656 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 14:21:47,659 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 14:21:47,984 INFO L? ?]: Removed 42 outVars from TransFormulas that were not future-live. [2024-11-18 14:21:47,985 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 14:21:48,002 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 14:21:48,003 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-18 14:21:48,004 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:21:48 BoogieIcfgContainer [2024-11-18 14:21:48,004 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 14:21:48,006 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 14:21:48,007 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 14:21:48,011 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 14:21:48,011 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:21:46" (1/3) ... [2024-11-18 14:21:48,012 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e2b9fde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:21:48, skipping insertion in model container [2024-11-18 14:21:48,012 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:47" (2/3) ... [2024-11-18 14:21:48,013 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e2b9fde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:21:48, skipping insertion in model container [2024-11-18 14:21:48,013 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:21:48" (3/3) ... [2024-11-18 14:21:48,015 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product44.cil.c [2024-11-18 14:21:48,030 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 14:21:48,030 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 14:21:48,097 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 14:21:48,106 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;@11343b14, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 14:21:48,106 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 14:21:48,111 INFO L276 IsEmpty]: Start isEmpty. Operand has 89 states, 71 states have (on average 1.3661971830985915) internal successors, (97), 77 states have internal predecessors, (97), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-18 14:21:48,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-18 14:21:48,121 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:21:48,122 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:21:48,122 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:21:48,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:21:48,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1684151890, now seen corresponding path program 1 times [2024-11-18 14:21:48,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:21:48,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430601000] [2024-11-18 14:21:48,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:21:48,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:21:48,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:21:48,348 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 14:21:48,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:21:48,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430601000] [2024-11-18 14:21:48,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430601000] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:21:48,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:21:48,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 14:21:48,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875666120] [2024-11-18 14:21:48,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:21:48,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 14:21:48,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:21:48,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 14:21:48,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 14:21:48,389 INFO L87 Difference]: Start difference. First operand has 89 states, 71 states have (on average 1.3661971830985915) internal successors, (97), 77 states have internal predecessors, (97), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-18 14:21:48,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:21:48,416 INFO L93 Difference]: Finished difference Result 169 states and 228 transitions. [2024-11-18 14:21:48,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 14:21:48,418 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2024-11-18 14:21:48,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:21:48,426 INFO L225 Difference]: With dead ends: 169 [2024-11-18 14:21:48,426 INFO L226 Difference]: Without dead ends: 80 [2024-11-18 14:21:48,428 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 14:21:48,432 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:21:48,433 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:21:48,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-11-18 14:21:48,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2024-11-18 14:21:48,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 64 states have (on average 1.296875) internal successors, (83), 69 states have internal predecessors, (83), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-18 14:21:48,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 102 transitions. [2024-11-18 14:21:48,475 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 102 transitions. Word has length 32 [2024-11-18 14:21:48,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:21:48,476 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 102 transitions. [2024-11-18 14:21:48,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-18 14:21:48,477 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 102 transitions. [2024-11-18 14:21:48,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-18 14:21:48,479 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:21:48,479 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:21:48,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 14:21:48,480 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:21:48,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:21:48,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1709273223, now seen corresponding path program 1 times [2024-11-18 14:21:48,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:21:48,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270835197] [2024-11-18 14:21:48,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:21:48,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:21:48,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:21:48,625 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 14:21:48,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:21:48,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270835197] [2024-11-18 14:21:48,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270835197] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:21:48,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:21:48,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:21:48,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847939861] [2024-11-18 14:21:48,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:21:48,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:21:48,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:21:48,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:21:48,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:21:48,632 INFO L87 Difference]: Start difference. First operand 80 states and 102 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-18 14:21:48,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:21:48,653 INFO L93 Difference]: Finished difference Result 120 states and 153 transitions. [2024-11-18 14:21:48,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:21:48,655 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 33 [2024-11-18 14:21:48,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:21:48,656 INFO L225 Difference]: With dead ends: 120 [2024-11-18 14:21:48,656 INFO L226 Difference]: Without dead ends: 71 [2024-11-18 14:21:48,657 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:21:48,658 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 18 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:21:48,659 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 156 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:21:48,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-11-18 14:21:48,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2024-11-18 14:21:48,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 58 states have (on average 1.3103448275862069) internal successors, (76), 63 states have internal predecessors, (76), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-18 14:21:48,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 90 transitions. [2024-11-18 14:21:48,668 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 90 transitions. Word has length 33 [2024-11-18 14:21:48,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:21:48,668 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 90 transitions. [2024-11-18 14:21:48,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-18 14:21:48,669 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 90 transitions. [2024-11-18 14:21:48,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-18 14:21:48,672 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:21:48,672 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:21:48,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 14:21:48,673 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:21:48,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:21:48,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1502879027, now seen corresponding path program 1 times [2024-11-18 14:21:48,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:21:48,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823137992] [2024-11-18 14:21:48,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:21:48,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:21:48,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:21:48,784 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 14:21:48,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:21:48,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823137992] [2024-11-18 14:21:48,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823137992] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:21:48,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:21:48,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:21:48,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195739390] [2024-11-18 14:21:48,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:21:48,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:21:48,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:21:48,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:21:48,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:21:48,790 INFO L87 Difference]: Start difference. First operand 71 states and 90 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-18 14:21:48,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:21:48,828 INFO L93 Difference]: Finished difference Result 195 states and 253 transitions. [2024-11-18 14:21:48,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:21:48,829 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 38 [2024-11-18 14:21:48,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:21:48,830 INFO L225 Difference]: With dead ends: 195 [2024-11-18 14:21:48,831 INFO L226 Difference]: Without dead ends: 132 [2024-11-18 14:21:48,831 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:21:48,832 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 78 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:21:48,834 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 181 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:21:48,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2024-11-18 14:21:48,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 127. [2024-11-18 14:21:48,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 102 states have (on average 1.3333333333333333) internal successors, (136), 111 states have internal predecessors, (136), 14 states have call successors, (14), 10 states have call predecessors, (14), 10 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-18 14:21:48,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 164 transitions. [2024-11-18 14:21:48,855 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 164 transitions. Word has length 38 [2024-11-18 14:21:48,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:21:48,855 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 164 transitions. [2024-11-18 14:21:48,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-18 14:21:48,856 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 164 transitions. [2024-11-18 14:21:48,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-18 14:21:48,857 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:21:48,860 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:21:48,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 14:21:48,860 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:21:48,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:21:48,865 INFO L85 PathProgramCache]: Analyzing trace with hash -793445015, now seen corresponding path program 1 times [2024-11-18 14:21:48,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:21:48,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297774590] [2024-11-18 14:21:48,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:21:48,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:21:48,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:21:49,071 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-18 14:21:49,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:21:49,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297774590] [2024-11-18 14:21:49,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297774590] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:21:49,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:21:49,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:21:49,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734545821] [2024-11-18 14:21:49,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:21:49,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:21:49,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:21:49,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:21:49,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:21:49,074 INFO L87 Difference]: Start difference. First operand 127 states and 164 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-18 14:21:49,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:21:49,226 INFO L93 Difference]: Finished difference Result 330 states and 434 transitions. [2024-11-18 14:21:49,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 14:21:49,228 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 41 [2024-11-18 14:21:49,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:21:49,230 INFO L225 Difference]: With dead ends: 330 [2024-11-18 14:21:49,231 INFO L226 Difference]: Without dead ends: 211 [2024-11-18 14:21:49,232 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:21:49,233 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 46 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:21:49,234 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 374 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:21:49,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2024-11-18 14:21:49,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2024-11-18 14:21:49,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 166 states have (on average 1.2951807228915662) internal successors, (215), 179 states have internal predecessors, (215), 24 states have call successors, (24), 20 states have call predecessors, (24), 20 states have return successors, (28), 24 states have call predecessors, (28), 24 states have call successors, (28) [2024-11-18 14:21:49,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 267 transitions. [2024-11-18 14:21:49,266 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 267 transitions. Word has length 41 [2024-11-18 14:21:49,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:21:49,266 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 267 transitions. [2024-11-18 14:21:49,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-18 14:21:49,267 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 267 transitions. [2024-11-18 14:21:49,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-18 14:21:49,268 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:21:49,268 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:21:49,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 14:21:49,269 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:21:49,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:21:49,271 INFO L85 PathProgramCache]: Analyzing trace with hash 855988844, now seen corresponding path program 1 times [2024-11-18 14:21:49,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:21:49,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8496215] [2024-11-18 14:21:49,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:21:49,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:21:49,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:21:49,377 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 14:21:49,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:21:49,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8496215] [2024-11-18 14:21:49,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8496215] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:21:49,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:21:49,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:21:49,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795627849] [2024-11-18 14:21:49,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:21:49,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:21:49,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:21:49,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:21:49,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:21:49,381 INFO L87 Difference]: Start difference. First operand 211 states and 267 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-18 14:21:49,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:21:49,417 INFO L93 Difference]: Finished difference Result 420 states and 542 transitions. [2024-11-18 14:21:49,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:21:49,418 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 51 [2024-11-18 14:21:49,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:21:49,420 INFO L225 Difference]: With dead ends: 420 [2024-11-18 14:21:49,420 INFO L226 Difference]: Without dead ends: 217 [2024-11-18 14:21:49,423 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:21:49,424 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 0 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:21:49,425 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 341 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:21:49,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2024-11-18 14:21:49,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2024-11-18 14:21:49,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 172 states have (on average 1.2848837209302326) internal successors, (221), 185 states have internal predecessors, (221), 24 states have call successors, (24), 20 states have call predecessors, (24), 20 states have return successors, (28), 24 states have call predecessors, (28), 24 states have call successors, (28) [2024-11-18 14:21:49,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 273 transitions. [2024-11-18 14:21:49,443 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 273 transitions. Word has length 51 [2024-11-18 14:21:49,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:21:49,443 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 273 transitions. [2024-11-18 14:21:49,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-18 14:21:49,444 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 273 transitions. [2024-11-18 14:21:49,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-18 14:21:49,445 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:21:49,445 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:21:49,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 14:21:49,446 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:21:49,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:21:49,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1278690670, now seen corresponding path program 1 times [2024-11-18 14:21:49,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:21:49,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225632904] [2024-11-18 14:21:49,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:21:49,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:21:49,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:21:49,567 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 14:21:49,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:21:49,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225632904] [2024-11-18 14:21:49,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225632904] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:21:49,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:21:49,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:21:49,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981892325] [2024-11-18 14:21:49,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:21:49,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:21:49,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:21:49,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:21:49,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:21:49,572 INFO L87 Difference]: Start difference. First operand 217 states and 273 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-18 14:21:49,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:21:49,629 INFO L93 Difference]: Finished difference Result 436 states and 558 transitions. [2024-11-18 14:21:49,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 14:21:49,630 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 51 [2024-11-18 14:21:49,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:21:49,632 INFO L225 Difference]: With dead ends: 436 [2024-11-18 14:21:49,634 INFO L226 Difference]: Without dead ends: 227 [2024-11-18 14:21:49,635 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:21:49,637 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 80 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:21:49,639 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 354 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:21:49,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2024-11-18 14:21:49,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 221. [2024-11-18 14:21:49,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 176 states have (on average 1.2784090909090908) internal successors, (225), 189 states have internal predecessors, (225), 24 states have call successors, (24), 20 states have call predecessors, (24), 20 states have return successors, (28), 24 states have call predecessors, (28), 24 states have call successors, (28) [2024-11-18 14:21:49,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 277 transitions. [2024-11-18 14:21:49,662 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 277 transitions. Word has length 51 [2024-11-18 14:21:49,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:21:49,662 INFO L471 AbstractCegarLoop]: Abstraction has 221 states and 277 transitions. [2024-11-18 14:21:49,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-18 14:21:49,663 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 277 transitions. [2024-11-18 14:21:49,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-18 14:21:49,666 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:21:49,666 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:21:49,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 14:21:49,666 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:21:49,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:21:49,668 INFO L85 PathProgramCache]: Analyzing trace with hash -526747664, now seen corresponding path program 1 times [2024-11-18 14:21:49,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:21:49,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363265682] [2024-11-18 14:21:49,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:21:49,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:21:49,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:21:49,748 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 14:21:49,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:21:49,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363265682] [2024-11-18 14:21:49,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363265682] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:21:49,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:21:49,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:21:49,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779828875] [2024-11-18 14:21:49,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:21:49,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:21:49,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:21:49,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:21:49,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:21:49,753 INFO L87 Difference]: Start difference. First operand 221 states and 277 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-18 14:21:49,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:21:49,804 INFO L93 Difference]: Finished difference Result 528 states and 667 transitions. [2024-11-18 14:21:49,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:21:49,805 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 51 [2024-11-18 14:21:49,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:21:49,808 INFO L225 Difference]: With dead ends: 528 [2024-11-18 14:21:49,809 INFO L226 Difference]: Without dead ends: 315 [2024-11-18 14:21:49,810 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:21:49,812 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 39 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:21:49,813 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 165 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:21:49,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2024-11-18 14:21:49,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 315. [2024-11-18 14:21:49,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 250 states have (on average 1.248) internal successors, (312), 265 states have internal predecessors, (312), 36 states have call successors, (36), 30 states have call predecessors, (36), 28 states have return successors, (40), 34 states have call predecessors, (40), 36 states have call successors, (40) [2024-11-18 14:21:49,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 388 transitions. [2024-11-18 14:21:49,843 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 388 transitions. Word has length 51 [2024-11-18 14:21:49,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:21:49,843 INFO L471 AbstractCegarLoop]: Abstraction has 315 states and 388 transitions. [2024-11-18 14:21:49,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-18 14:21:49,844 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 388 transitions. [2024-11-18 14:21:49,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-18 14:21:49,845 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:21:49,846 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:21:49,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 14:21:49,846 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:21:49,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:21:49,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1427287338, now seen corresponding path program 1 times [2024-11-18 14:21:49,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:21:49,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980984231] [2024-11-18 14:21:49,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:21:49,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:21:49,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:21:50,059 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 14:21:50,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:21:50,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980984231] [2024-11-18 14:21:50,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980984231] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:21:50,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:21:50,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 14:21:50,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551473445] [2024-11-18 14:21:50,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:21:50,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 14:21:50,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:21:50,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 14:21:50,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:21:50,062 INFO L87 Difference]: Start difference. First operand 315 states and 388 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-18 14:21:50,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:21:50,386 INFO L93 Difference]: Finished difference Result 1002 states and 1303 transitions. [2024-11-18 14:21:50,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-18 14:21:50,387 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 55 [2024-11-18 14:21:50,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:21:50,394 INFO L225 Difference]: With dead ends: 1002 [2024-11-18 14:21:50,394 INFO L226 Difference]: Without dead ends: 789 [2024-11-18 14:21:50,396 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2024-11-18 14:21:50,400 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 373 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 14:21:50,400 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [379 Valid, 524 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 14:21:50,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789 states. [2024-11-18 14:21:50,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789 to 781. [2024-11-18 14:21:50,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 781 states, 620 states have (on average 1.2258064516129032) internal successors, (760), 659 states have internal predecessors, (760), 86 states have call successors, (86), 66 states have call predecessors, (86), 74 states have return successors, (124), 82 states have call predecessors, (124), 86 states have call successors, (124) [2024-11-18 14:21:50,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 781 states to 781 states and 970 transitions. [2024-11-18 14:21:50,482 INFO L78 Accepts]: Start accepts. Automaton has 781 states and 970 transitions. Word has length 55 [2024-11-18 14:21:50,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:21:50,483 INFO L471 AbstractCegarLoop]: Abstraction has 781 states and 970 transitions. [2024-11-18 14:21:50,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-18 14:21:50,483 INFO L276 IsEmpty]: Start isEmpty. Operand 781 states and 970 transitions. [2024-11-18 14:21:50,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-18 14:21:50,486 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:21:50,486 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:21:50,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 14:21:50,487 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:21:50,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:21:50,489 INFO L85 PathProgramCache]: Analyzing trace with hash -616604212, now seen corresponding path program 1 times [2024-11-18 14:21:50,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:21:50,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594862438] [2024-11-18 14:21:50,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:21:50,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:21:50,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:21:50,553 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-18 14:21:50,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:21:50,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594862438] [2024-11-18 14:21:50,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594862438] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:21:50,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:21:50,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:21:50,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5298755] [2024-11-18 14:21:50,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:21:50,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:21:50,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:21:50,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:21:50,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:21:50,556 INFO L87 Difference]: Start difference. First operand 781 states and 970 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-18 14:21:50,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:21:50,660 INFO L93 Difference]: Finished difference Result 1326 states and 1646 transitions. [2024-11-18 14:21:50,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:21:50,662 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) Word has length 85 [2024-11-18 14:21:50,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:21:50,666 INFO L225 Difference]: With dead ends: 1326 [2024-11-18 14:21:50,666 INFO L226 Difference]: Without dead ends: 553 [2024-11-18 14:21:50,669 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:21:50,670 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 110 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:21:50,670 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 237 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:21:50,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-18 14:21:50,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 545. [2024-11-18 14:21:50,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 431 states have (on average 1.2134570765661252) internal successors, (523), 458 states have internal predecessors, (523), 61 states have call successors, (61), 48 states have call predecessors, (61), 52 states have return successors, (81), 58 states have call predecessors, (81), 61 states have call successors, (81) [2024-11-18 14:21:50,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 665 transitions. [2024-11-18 14:21:50,707 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 665 transitions. Word has length 85 [2024-11-18 14:21:50,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:21:50,707 INFO L471 AbstractCegarLoop]: Abstraction has 545 states and 665 transitions. [2024-11-18 14:21:50,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-18 14:21:50,708 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 665 transitions. [2024-11-18 14:21:50,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-18 14:21:50,709 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:21:50,709 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:21:50,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 14:21:50,710 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:21:50,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:21:50,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1396479385, now seen corresponding path program 1 times [2024-11-18 14:21:50,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:21:50,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69879278] [2024-11-18 14:21:50,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:21:50,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:21:50,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:21:50,833 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-18 14:21:50,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:21:50,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69879278] [2024-11-18 14:21:50,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69879278] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:21:50,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2027117572] [2024-11-18 14:21:50,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:21:50,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:21:50,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:21:50,836 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:21:50,838 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 14:21:50,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:21:50,940 INFO L255 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-18 14:21:50,954 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:21:51,131 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:21:51,135 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 14:21:51,333 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-18 14:21:51,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2027117572] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 14:21:51,333 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 14:21:51,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 14 [2024-11-18 14:21:51,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054925568] [2024-11-18 14:21:51,333 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 14:21:51,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-18 14:21:51,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:21:51,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-18 14:21:51,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-11-18 14:21:51,335 INFO L87 Difference]: Start difference. First operand 545 states and 665 transitions. Second operand has 14 states, 14 states have (on average 8.857142857142858) internal successors, (124), 12 states have internal predecessors, (124), 6 states have call successors, (15), 4 states have call predecessors, (15), 7 states have return successors, (13), 7 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-18 14:21:51,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:21:51,729 INFO L93 Difference]: Finished difference Result 1038 states and 1288 transitions. [2024-11-18 14:21:51,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-18 14:21:51,730 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.857142857142858) internal successors, (124), 12 states have internal predecessors, (124), 6 states have call successors, (15), 4 states have call predecessors, (15), 7 states have return successors, (13), 7 states have call predecessors, (13), 6 states have call successors, (13) Word has length 87 [2024-11-18 14:21:51,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:21:51,732 INFO L225 Difference]: With dead ends: 1038 [2024-11-18 14:21:51,732 INFO L226 Difference]: Without dead ends: 0 [2024-11-18 14:21:51,735 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 169 SyntacticMatches, 4 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=143, Invalid=457, Unknown=0, NotChecked=0, Total=600 [2024-11-18 14:21:51,735 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 315 mSDsluCounter, 884 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 1058 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 14:21:51,736 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [320 Valid, 1058 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 14:21:51,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-18 14:21:51,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-18 14:21:51,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:21:51,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-18 14:21:51,737 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 87 [2024-11-18 14:21:51,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:21:51,737 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-18 14:21:51,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.857142857142858) internal successors, (124), 12 states have internal predecessors, (124), 6 states have call successors, (15), 4 states have call predecessors, (15), 7 states have return successors, (13), 7 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-18 14:21:51,737 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-18 14:21:51,737 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-18 14:21:51,741 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-18 14:21:51,759 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-18 14:21:51,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-18 14:21:51,944 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:21:51,946 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-18 14:21:54,928 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-18 14:21:54,972 WARN L156 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (let ((.cse6 (= |old(~pumpRunning~0)| 1))) (let ((.cse0 (= |old(~waterLevel~0)| 2)) (.cse3 (= 0 ~systemActive~0)) (.cse1 (< |old(~switchedOnBeforeTS~0)| 1)) (.cse4 (not .cse6)) (.cse2 (<= 1 ~switchedOnBeforeTS~0)) (.cse7 (= |old(~pumpRunning~0)| 0)) (.cse9 (or (= |old(~waterLevel~0)| ~waterLevel~0) (= ~waterLevel~0 1)))) (and (or (= 2 ~waterLevel~0) (not .cse0)) (or .cse1 .cse2 (not .cse3)) (or .cse4 (= ~pumpRunning~0 1)) (let ((.cse5 (= 1 ~systemActive~0)) (.cse8 (<= |old(~waterLevel~0)| 2))) (or (and .cse5 .cse6 .cse0) (and .cse7 .cse3 .cse8) (and .cse5 .cse6 (<= 1 |old(~switchedOnBeforeTS~0)|) .cse8) (and .cse5 .cse7 .cse8))) (or .cse1 .cse4 (and .cse9 .cse2)) (or (not .cse7) (and (= ~pumpRunning~0 0) .cse9))))) Eliminated clause: (exists ((|old(~pumpRunning~0)| Int) (|old(~switchedOnBeforeTS~0)| Int) (|old(~waterLevel~0)| Int)) (let ((.cse5 (= |old(~pumpRunning~0)| 1))) (let ((.cse0 (= |old(~waterLevel~0)| 2)) (.cse2 (= 0 ~systemActive~0)) (.cse1 (< |old(~switchedOnBeforeTS~0)| 1)) (.cse3 (not .cse5)) (.cse6 (= |old(~pumpRunning~0)| 0)) (.cse8 (or (= |old(~waterLevel~0)| ~waterLevel~0) (= ~waterLevel~0 1)))) (and (or (= 2 ~waterLevel~0) (not .cse0)) (or .cse1 (< 0 ~switchedOnBeforeTS~0) (not .cse2)) (or .cse3 (= ~pumpRunning~0 1)) (let ((.cse4 (= 1 ~systemActive~0)) (.cse7 (<= |old(~waterLevel~0)| 2))) (or (and .cse4 .cse5 .cse0) (and .cse6 .cse2 .cse7) (and .cse4 .cse5 (<= 1 |old(~switchedOnBeforeTS~0)|) .cse7) (and .cse4 .cse6 .cse7))) (or .cse1 .cse3 (and .cse8 (<= 1 ~switchedOnBeforeTS~0))) (or (not .cse6) (and (= ~pumpRunning~0 0) .cse8)))))) [2024-11-18 14:21:54,982 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-18 14:21:54,990 WARN L156 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (let ((.cse0 (= |old(~waterLevel~0)| 2))) (and (or (= 2 ~waterLevel~0) (not .cse0)) (let ((.cse4 (= ~pumpRunning~0 0)) (.cse2 (<= |old(~waterLevel~0)| 2)) (.cse1 (= 1 ~systemActive~0)) (.cse3 (= ~pumpRunning~0 1))) (or (and .cse1 (<= 1 ~switchedOnBeforeTS~0) .cse2 .cse3) (and .cse4 .cse1 .cse2) (and .cse4 (= 0 ~systemActive~0) .cse2) (and .cse1 .cse0 .cse3))) (or (= |old(~waterLevel~0)| ~waterLevel~0) (= ~waterLevel~0 1)))) Eliminated clause: (exists ((|old(~waterLevel~0)| Int)) (let ((.cse0 (= |old(~waterLevel~0)| 2))) (and (or (= 2 ~waterLevel~0) (not .cse0)) (let ((.cse4 (= ~pumpRunning~0 0)) (.cse2 (<= |old(~waterLevel~0)| 2)) (.cse1 (= 1 ~systemActive~0)) (.cse3 (= ~pumpRunning~0 1))) (or (and .cse1 (<= 1 ~switchedOnBeforeTS~0) .cse2 .cse3) (and .cse4 .cse1 .cse2) (and .cse4 (= 0 ~systemActive~0) .cse2) (and .cse1 .cse0 .cse3))) (or (= |old(~waterLevel~0)| ~waterLevel~0) (= ~waterLevel~0 1))))) [2024-11-18 14:21:54,995 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-18 14:21:55,004 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 02:21:55 BoogieIcfgContainer [2024-11-18 14:21:55,004 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-18 14:21:55,005 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-18 14:21:55,005 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-18 14:21:55,005 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-18 14:21:55,006 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:21:48" (3/4) ... [2024-11-18 14:21:55,008 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-18 14:21:55,013 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-18 14:21:55,014 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-18 14:21:55,014 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-18 14:21:55,014 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-18 14:21:55,014 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-18 14:21:55,014 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2024-11-18 14:21:55,021 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2024-11-18 14:21:55,021 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-18 14:21:55,022 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-18 14:21:55,022 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-18 14:21:55,023 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-18 14:21:55,135 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-18 14:21:55,135 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-18 14:21:55,135 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-18 14:21:55,136 INFO L158 Benchmark]: Toolchain (without parser) took 8357.53ms. Allocated memory was 165.7MB in the beginning and 211.8MB in the end (delta: 46.1MB). Free memory was 96.0MB in the beginning and 73.4MB in the end (delta: 22.6MB). Peak memory consumption was 71.3MB. Max. memory is 16.1GB. [2024-11-18 14:21:55,136 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 113.2MB. Free memory was 73.7MB in the beginning and 73.6MB in the end (delta: 108.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 14:21:55,137 INFO L158 Benchmark]: CACSL2BoogieTranslator took 510.42ms. Allocated memory is still 165.7MB. Free memory was 95.8MB in the beginning and 73.1MB in the end (delta: 22.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-18 14:21:55,137 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.74ms. Allocated memory is still 165.7MB. Free memory was 73.1MB in the beginning and 70.9MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 14:21:55,137 INFO L158 Benchmark]: Boogie Preprocessor took 64.83ms. Allocated memory is still 165.7MB. Free memory was 70.9MB in the beginning and 68.6MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 14:21:55,137 INFO L158 Benchmark]: RCFGBuilder took 597.33ms. Allocated memory is still 165.7MB. Free memory was 68.6MB in the beginning and 120.3MB in the end (delta: -51.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-18 14:21:55,138 INFO L158 Benchmark]: TraceAbstraction took 6998.47ms. Allocated memory was 165.7MB in the beginning and 211.8MB in the end (delta: 46.1MB). Free memory was 119.9MB in the beginning and 80.7MB in the end (delta: 39.1MB). Peak memory consumption was 112.5MB. Max. memory is 16.1GB. [2024-11-18 14:21:55,138 INFO L158 Benchmark]: Witness Printer took 130.45ms. Allocated memory is still 211.8MB. Free memory was 80.7MB in the beginning and 73.4MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-18 14:21:55,144 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 113.2MB. Free memory was 73.7MB in the beginning and 73.6MB in the end (delta: 108.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 510.42ms. Allocated memory is still 165.7MB. Free memory was 95.8MB in the beginning and 73.1MB in the end (delta: 22.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.74ms. Allocated memory is still 165.7MB. Free memory was 73.1MB in the beginning and 70.9MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.83ms. Allocated memory is still 165.7MB. Free memory was 70.9MB in the beginning and 68.6MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 597.33ms. Allocated memory is still 165.7MB. Free memory was 68.6MB in the beginning and 120.3MB in the end (delta: -51.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 6998.47ms. Allocated memory was 165.7MB in the beginning and 211.8MB in the end (delta: 46.1MB). Free memory was 119.9MB in the beginning and 80.7MB in the end (delta: 39.1MB). Peak memory consumption was 112.5MB. Max. memory is 16.1GB. * Witness Printer took 130.45ms. Allocated memory is still 211.8MB. Free memory was 80.7MB in the beginning and 73.4MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] - GenericResultAtLocation [Line: 150]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [150] - GenericResultAtLocation [Line: 516]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [516] - GenericResultAtLocation [Line: 721]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [721] - GenericResultAtLocation [Line: 791]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [791] - GenericResultAtLocation [Line: 829]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [829] - GenericResultAtLocation [Line: 927]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [927] - GenericResultAtLocation [Line: 936]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [936] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 932]: 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, 89 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.9s, OverallIterations: 10, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1074 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1059 mSDsluCounter, 3501 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2405 mSDsCounter, 170 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 493 IncrementalHoareTripleChecker+Invalid, 663 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 170 mSolverCounterUnsat, 1096 mSDtfsCounter, 493 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 254 GetRequests, 194 SyntacticMatches, 4 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=781occurred in iteration=8, InterpolantAutomatonStates: 62, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 27 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 611 NumberOfCodeBlocks, 611 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 686 ConstructedInterpolants, 0 QuantifiedInterpolants, 1382 SizeOfPredicates, 2 NumberOfNonLiveVariables, 300 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 12 InterpolantComputations, 9 PerfectInterpolantSequences, 120/142 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: 733]: Loop Invariant Derived loop invariant: ((((((((1 == systemActive) && (splverifierCounter == 0)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) && (pumpRunning == 1)) || ((((pumpRunning == 0) && (splverifierCounter == 0)) && (waterLevel <= 2)) && (0 == systemActive))) || ((((pumpRunning == 0) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel <= 2))) || ((((2 == waterLevel) && (1 == systemActive)) && (splverifierCounter == 0)) && (pumpRunning == 1))) - InvariantResult [Line: 732]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 841]: Loop Invariant Derived loop invariant: 0 - ProcedureContractResult [Line: 556]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: ((((pumpRunning == 0) && (1 == systemActive)) && (waterLevel <= 2)) || ((((1 == systemActive) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) && (pumpRunning == 1))) Ensures: (((((pumpRunning == 0) && (1 == systemActive)) && (waterLevel <= 2)) || ((((1 == systemActive) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) && (pumpRunning == 1))) && (((((((waterLevel == \old(waterLevel)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (head == \old(head))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS)))) - ProcedureContractResult [Line: 83]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Requires: ((((((pumpRunning == 0) && (1 == systemActive)) && (waterLevel <= 2)) || (((2 == waterLevel) && (1 == systemActive)) && (pumpRunning == 1))) || ((((1 == systemActive) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) && (pumpRunning == 1))) || (((pumpRunning == 0) && (waterLevel <= 2)) && (0 == systemActive))) Ensures: (((((((pumpRunning == 0) && (1 == systemActive)) && (waterLevel <= 2)) || (((2 == waterLevel) && (1 == systemActive)) && (pumpRunning == 1))) || ((((1 == systemActive) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) && (pumpRunning == 1))) || (((pumpRunning == 0) && (waterLevel <= 2)) && (0 == systemActive))) && ((((((waterLevel == \old(waterLevel)) && (head == \old(head))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS)))) - ProcedureContractResult [Line: 831]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: (0 && ((((methaneLevelCritical == \old(methaneLevelCritical)) && (head == \old(head))) && (systemActive == \old(systemActive))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 529]: Procedure Contract for timeShift Derived contract for procedure timeShift. Ensures: ((((((((\old(pumpRunning) != 0) || (2 == waterLevel)) || (\old(waterLevel) != 2)) && (((\old(pumpRunning) != 1) || (\old(waterLevel) != 2)) || ((1 == systemActive) && (waterLevel == 1)))) && ((((((\old(pumpRunning) == 0) && (0 == systemActive)) && (\old(waterLevel) <= 2)) || ((\old(pumpRunning) == 1) && (\old(waterLevel) == 2))) || ((((1 == systemActive) && (\old(pumpRunning) == 1)) && (1 <= \old(switchedOnBeforeTS))) && (\old(waterLevel) <= 2))) || (((1 == systemActive) && (\old(pumpRunning) == 0)) && (\old(waterLevel) <= 2)))) && ((\old(pumpRunning) != 1) || (((waterLevel <= 2) && (1 <= switchedOnBeforeTS)) && (pumpRunning == 1)))) && (((\old(pumpRunning) != 0) || (((1 == systemActive) && (\old(waterLevel) == 2)) && (pumpRunning == 1))) || ((pumpRunning == 0) && ((\old(waterLevel) == waterLevel) || (waterLevel == 1))))) && ((((methaneLevelCritical == \old(methaneLevelCritical)) && (head == \old(head))) && (systemActive == \old(systemActive))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 71]: Procedure Contract for waterRise Derived contract for procedure waterRise. Ensures: ((((((2 == waterLevel) || (\old(waterLevel) != 2)) && ((2 == waterLevel) || (\old(waterLevel) != 1))) && (((((((1 == systemActive) && (1 <= switchedOnBeforeTS)) && (\old(waterLevel) <= 2)) && (pumpRunning == 1)) || (((pumpRunning == 0) && (1 == systemActive)) && (\old(waterLevel) <= 2))) || (((pumpRunning == 0) && (0 == systemActive)) && (\old(waterLevel) <= 2))) || (((1 == systemActive) && (\old(waterLevel) == 2)) && (pumpRunning == 1)))) && (waterLevel <= 2)) && ((((((methaneLevelCritical == \old(methaneLevelCritical)) && (head == \old(head))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS)))) - ProcedureContractResult [Line: 634]: Procedure Contract for isPumpRunning Derived contract for procedure isPumpRunning. Requires: ((((((pumpRunning == 0) && (1 == systemActive)) && (waterLevel <= 2)) || (((2 == waterLevel) && (1 == systemActive)) && (pumpRunning == 1))) || ((((1 == systemActive) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) && (pumpRunning == 1))) || (((pumpRunning == 0) && (waterLevel <= 2)) && (0 == systemActive))) Ensures: (((((pumpRunning != 0) || (\result == 0)) && ((\result == 1) || (pumpRunning != 1))) && ((((((pumpRunning == 0) && (1 == systemActive)) && (waterLevel <= 2)) || (((2 == waterLevel) && (1 == systemActive)) && (pumpRunning == 1))) || ((((1 == systemActive) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) && (pumpRunning == 1))) || (((pumpRunning == 0) && (waterLevel <= 2)) && (0 == systemActive)))) && (((((((waterLevel == \old(waterLevel)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (head == \old(head))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS)))) RESULT: Ultimate proved your program to be correct! [2024-11-18 14:21:55,178 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE