./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product35.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec5_product35.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 45ba8c3ee5105630bc9146965d68439e6204903aca4c5a31cd4f017e456c8589 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 02:06:28,824 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 02:06:28,901 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 02:06:28,907 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 02:06:28,909 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 02:06:28,942 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 02:06:28,943 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 02:06:28,944 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 02:06:28,944 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 02:06:28,945 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 02:06:28,947 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 02:06:28,947 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 02:06:28,948 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 02:06:28,948 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 02:06:28,949 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 02:06:28,949 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 02:06:28,950 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 02:06:28,950 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 02:06:28,950 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 02:06:28,951 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 02:06:28,951 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 02:06:28,951 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 02:06:28,952 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 02:06:28,952 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 02:06:28,952 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 02:06:28,952 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 02:06:28,953 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 02:06:28,953 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 02:06:28,953 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 02:06:28,954 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 02:06:28,954 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 02:06:28,954 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 02:06:28,954 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 02:06:28,955 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 02:06:28,955 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 02:06:28,955 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 02:06:28,955 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 02:06:28,956 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 02:06:28,956 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 02:06:28,956 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 02:06:28,956 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 02:06:28,957 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 02:06:28,958 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45ba8c3ee5105630bc9146965d68439e6204903aca4c5a31cd4f017e456c8589 [2024-11-22 02:06:29,248 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 02:06:29,277 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 02:06:29,280 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 02:06:29,282 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 02:06:29,282 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 02:06:29,283 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product35.cil.c [2024-11-22 02:06:30,649 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 02:06:30,889 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 02:06:30,890 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product35.cil.c [2024-11-22 02:06:30,911 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0bc16ceb2/7c2112c09a4f41f0848c193cb8760daa/FLAG85894ac97 [2024-11-22 02:06:31,216 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0bc16ceb2/7c2112c09a4f41f0848c193cb8760daa [2024-11-22 02:06:31,218 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 02:06:31,219 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 02:06:31,222 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 02:06:31,222 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 02:06:31,226 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 02:06:31,227 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:06:31" (1/1) ... [2024-11-22 02:06:31,227 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d568ba8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:06:31, skipping insertion in model container [2024-11-22 02:06:31,227 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:06:31" (1/1) ... [2024-11-22 02:06:31,269 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 02:06:31,459 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_product35.cil.c[1605,1618] [2024-11-22 02:06:31,630 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 02:06:31,643 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 02:06:31,653 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] [2024-11-22 02:06:31,655 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [58] [2024-11-22 02:06:31,655 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [164] [2024-11-22 02:06:31,655 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [530] [2024-11-22 02:06:31,656 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [565] [2024-11-22 02:06:31,656 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [633] [2024-11-22 02:06:31,656 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [732] [2024-11-22 02:06:31,656 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [907] [2024-11-22 02:06:31,666 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_product35.cil.c[1605,1618] [2024-11-22 02:06:31,733 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 02:06:31,761 INFO L204 MainTranslator]: Completed translation [2024-11-22 02:06:31,761 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:06:31 WrapperNode [2024-11-22 02:06:31,762 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 02:06:31,763 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 02:06:31,763 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 02:06:31,763 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 02:06:31,769 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:06:31" (1/1) ... [2024-11-22 02:06:31,779 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:06:31" (1/1) ... [2024-11-22 02:06:31,800 INFO L138 Inliner]: procedures = 55, calls = 98, calls flagged for inlining = 24, calls inlined = 20, statements flattened = 182 [2024-11-22 02:06:31,800 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 02:06:31,801 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 02:06:31,801 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 02:06:31,801 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 02:06:31,812 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:06:31" (1/1) ... [2024-11-22 02:06:31,812 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:06:31" (1/1) ... [2024-11-22 02:06:31,814 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:06:31" (1/1) ... [2024-11-22 02:06:31,827 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]. [2024-11-22 02:06:31,828 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:06:31" (1/1) ... [2024-11-22 02:06:31,828 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:06:31" (1/1) ... [2024-11-22 02:06:31,833 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:06:31" (1/1) ... [2024-11-22 02:06:31,841 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:06:31" (1/1) ... [2024-11-22 02:06:31,843 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:06:31" (1/1) ... [2024-11-22 02:06:31,844 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:06:31" (1/1) ... [2024-11-22 02:06:31,846 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 02:06:31,847 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 02:06:31,847 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 02:06:31,847 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 02:06:31,848 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:06:31" (1/1) ... [2024-11-22 02:06:31,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 02:06:31,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:06:31,888 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) [2024-11-22 02:06:31,892 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 [2024-11-22 02:06:31,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 02:06:31,945 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-22 02:06:31,945 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-22 02:06:31,945 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-22 02:06:31,945 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-22 02:06:31,945 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-22 02:06:31,945 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-22 02:06:31,946 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-22 02:06:31,946 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-22 02:06:31,946 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2024-11-22 02:06:31,947 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2024-11-22 02:06:31,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 02:06:31,947 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-22 02:06:31,948 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-22 02:06:31,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 02:06:31,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 02:06:32,017 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 02:06:32,020 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 02:06:32,370 INFO L? ?]: Removed 36 outVars from TransFormulas that were not future-live. [2024-11-22 02:06:32,370 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 02:06:32,387 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 02:06:32,387 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-22 02:06:32,387 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:06:32 BoogieIcfgContainer [2024-11-22 02:06:32,388 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 02:06:32,391 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 02:06:32,391 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 02:06:32,396 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 02:06:32,397 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:06:31" (1/3) ... [2024-11-22 02:06:32,397 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41ca2714 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:06:32, skipping insertion in model container [2024-11-22 02:06:32,397 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:06:31" (2/3) ... [2024-11-22 02:06:32,398 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41ca2714 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:06:32, skipping insertion in model container [2024-11-22 02:06:32,398 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:06:32" (3/3) ... [2024-11-22 02:06:32,399 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product35.cil.c [2024-11-22 02:06:32,416 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 02:06:32,417 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 02:06:32,487 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 02:06:32,494 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;@38dfc53, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 02:06:32,495 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 02:06:32,501 INFO L276 IsEmpty]: Start isEmpty. Operand has 84 states, 66 states have (on average 1.378787878787879) internal successors, (91), 72 states have internal predecessors, (91), 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) [2024-11-22 02:06:32,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-22 02:06:32,514 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:06:32,515 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] [2024-11-22 02:06:32,515 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:06:32,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:06:32,521 INFO L85 PathProgramCache]: Analyzing trace with hash -569276447, now seen corresponding path program 1 times [2024-11-22 02:06:32,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:06:32,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593236316] [2024-11-22 02:06:32,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:06:32,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:06:32,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:06:32,727 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 02:06:32,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:06:32,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593236316] [2024-11-22 02:06:32,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593236316] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:06:32,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:06:32,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 02:06:32,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092180711] [2024-11-22 02:06:32,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:06:32,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 02:06:32,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:06:32,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 02:06:32,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 02:06:32,765 INFO L87 Difference]: Start difference. First operand has 84 states, 66 states have (on average 1.378787878787879) internal successors, (91), 72 states have internal predecessors, (91), 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) [2024-11-22 02:06:32,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:06:32,791 INFO L93 Difference]: Finished difference Result 159 states and 216 transitions. [2024-11-22 02:06:32,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 02:06:32,794 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 [2024-11-22 02:06:32,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:06:32,803 INFO L225 Difference]: With dead ends: 159 [2024-11-22 02:06:32,803 INFO L226 Difference]: Without dead ends: 75 [2024-11-22 02:06:32,808 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 [2024-11-22 02:06:32,811 INFO L432 NwaCegarLoop]: 105 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, 105 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 [2024-11-22 02:06:32,812 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:06:32,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-11-22 02:06:32,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2024-11-22 02:06:32,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 59 states have (on average 1.305084745762712) internal successors, (77), 64 states have internal predecessors, (77), 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) [2024-11-22 02:06:32,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 96 transitions. [2024-11-22 02:06:32,846 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 96 transitions. Word has length 32 [2024-11-22 02:06:32,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:06:32,847 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 96 transitions. [2024-11-22 02:06:32,847 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) [2024-11-22 02:06:32,847 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 96 transitions. [2024-11-22 02:06:32,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-22 02:06:32,851 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:06:32,851 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] [2024-11-22 02:06:32,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 02:06:32,852 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:06:32,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:06:32,853 INFO L85 PathProgramCache]: Analyzing trace with hash -292889895, now seen corresponding path program 1 times [2024-11-22 02:06:32,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:06:32,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67023592] [2024-11-22 02:06:32,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:06:32,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:06:32,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:06:32,976 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 02:06:32,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:06:32,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67023592] [2024-11-22 02:06:32,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67023592] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:06:32,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:06:32,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:06:32,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688039815] [2024-11-22 02:06:32,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:06:32,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:06:32,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:06:32,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:06:32,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:06:32,982 INFO L87 Difference]: Start difference. First operand 75 states and 96 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) [2024-11-22 02:06:32,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:06:32,997 INFO L93 Difference]: Finished difference Result 111 states and 142 transitions. [2024-11-22 02:06:32,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:06:32,998 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 [2024-11-22 02:06:32,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:06:32,999 INFO L225 Difference]: With dead ends: 111 [2024-11-22 02:06:32,999 INFO L226 Difference]: Without dead ends: 66 [2024-11-22 02:06:32,999 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 [2024-11-22 02:06:33,000 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 17 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 145 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 [2024-11-22 02:06:33,001 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 145 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:06:33,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2024-11-22 02:06:33,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2024-11-22 02:06:33,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 53 states have (on average 1.320754716981132) internal successors, (70), 58 states have internal predecessors, (70), 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) [2024-11-22 02:06:33,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 84 transitions. [2024-11-22 02:06:33,009 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 84 transitions. Word has length 33 [2024-11-22 02:06:33,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:06:33,009 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 84 transitions. [2024-11-22 02:06:33,009 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) [2024-11-22 02:06:33,010 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 84 transitions. [2024-11-22 02:06:33,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-22 02:06:33,011 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:06:33,011 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] [2024-11-22 02:06:33,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 02:06:33,011 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:06:33,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:06:33,012 INFO L85 PathProgramCache]: Analyzing trace with hash 2081952552, now seen corresponding path program 1 times [2024-11-22 02:06:33,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:06:33,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988289802] [2024-11-22 02:06:33,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:06:33,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:06:33,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:06:33,216 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 02:06:33,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:06:33,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988289802] [2024-11-22 02:06:33,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988289802] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:06:33,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:06:33,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 02:06:33,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396310097] [2024-11-22 02:06:33,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:06:33,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 02:06:33,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:06:33,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 02:06:33,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:06:33,219 INFO L87 Difference]: Start difference. First operand 66 states and 84 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 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) [2024-11-22 02:06:33,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:06:33,480 INFO L93 Difference]: Finished difference Result 225 states and 295 transitions. [2024-11-22 02:06:33,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 02:06:33,481 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 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 37 [2024-11-22 02:06:33,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:06:33,484 INFO L225 Difference]: With dead ends: 225 [2024-11-22 02:06:33,485 INFO L226 Difference]: Without dead ends: 167 [2024-11-22 02:06:33,485 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-22 02:06:33,487 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 179 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 02:06:33,487 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 363 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 02:06:33,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2024-11-22 02:06:33,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 157. [2024-11-22 02:06:33,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 123 states have (on average 1.3495934959349594) internal successors, (166), 134 states have internal predecessors, (166), 19 states have call successors, (19), 14 states have call predecessors, (19), 14 states have return successors, (20), 17 states have call predecessors, (20), 19 states have call successors, (20) [2024-11-22 02:06:33,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 205 transitions. [2024-11-22 02:06:33,510 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 205 transitions. Word has length 37 [2024-11-22 02:06:33,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:06:33,510 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 205 transitions. [2024-11-22 02:06:33,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 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) [2024-11-22 02:06:33,510 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 205 transitions. [2024-11-22 02:06:33,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-22 02:06:33,511 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:06:33,511 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] [2024-11-22 02:06:33,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 02:06:33,512 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:06:33,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:06:33,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1830972643, now seen corresponding path program 1 times [2024-11-22 02:06:33,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:06:33,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567856281] [2024-11-22 02:06:33,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:06:33,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:06:33,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:06:33,625 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 02:06:33,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:06:33,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567856281] [2024-11-22 02:06:33,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567856281] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:06:33,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:06:33,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 02:06:33,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853426517] [2024-11-22 02:06:33,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:06:33,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 02:06:33,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:06:33,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 02:06:33,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:06:33,629 INFO L87 Difference]: Start difference. First operand 157 states and 205 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) [2024-11-22 02:06:33,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:06:33,765 INFO L93 Difference]: Finished difference Result 384 states and 510 transitions. [2024-11-22 02:06:33,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 02:06:33,766 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 [2024-11-22 02:06:33,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:06:33,767 INFO L225 Difference]: With dead ends: 384 [2024-11-22 02:06:33,767 INFO L226 Difference]: Without dead ends: 235 [2024-11-22 02:06:33,769 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-22 02:06:33,770 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 40 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 351 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 [2024-11-22 02:06:33,770 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 351 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:06:33,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2024-11-22 02:06:33,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 235. [2024-11-22 02:06:33,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 181 states have (on average 1.292817679558011) internal successors, (234), 194 states have internal predecessors, (234), 29 states have call successors, (29), 24 states have call predecessors, (29), 24 states have return successors, (35), 29 states have call predecessors, (35), 29 states have call successors, (35) [2024-11-22 02:06:33,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 298 transitions. [2024-11-22 02:06:33,795 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 298 transitions. Word has length 41 [2024-11-22 02:06:33,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:06:33,796 INFO L471 AbstractCegarLoop]: Abstraction has 235 states and 298 transitions. [2024-11-22 02:06:33,796 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) [2024-11-22 02:06:33,796 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 298 transitions. [2024-11-22 02:06:33,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-22 02:06:33,798 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:06:33,798 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] [2024-11-22 02:06:33,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 02:06:33,798 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:06:33,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:06:33,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1378984981, now seen corresponding path program 1 times [2024-11-22 02:06:33,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:06:33,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189396522] [2024-11-22 02:06:33,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:06:33,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:06:33,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:06:33,941 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 02:06:33,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:06:33,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189396522] [2024-11-22 02:06:33,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189396522] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:06:33,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:06:33,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 02:06:33,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188494267] [2024-11-22 02:06:33,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:06:33,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:06:33,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:06:33,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:06:33,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:06:33,947 INFO L87 Difference]: Start difference. First operand 235 states and 298 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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) [2024-11-22 02:06:33,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:06:33,987 INFO L93 Difference]: Finished difference Result 468 states and 601 transitions. [2024-11-22 02:06:33,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:06:33,988 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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 46 [2024-11-22 02:06:33,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:06:33,992 INFO L225 Difference]: With dead ends: 468 [2024-11-22 02:06:33,995 INFO L226 Difference]: Without dead ends: 241 [2024-11-22 02:06:33,997 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 [2024-11-22 02:06:34,000 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 0 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 317 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 [2024-11-22 02:06:34,001 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 317 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:06:34,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2024-11-22 02:06:34,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 241. [2024-11-22 02:06:34,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 187 states have (on average 1.2834224598930482) internal successors, (240), 200 states have internal predecessors, (240), 29 states have call successors, (29), 24 states have call predecessors, (29), 24 states have return successors, (35), 29 states have call predecessors, (35), 29 states have call successors, (35) [2024-11-22 02:06:34,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 304 transitions. [2024-11-22 02:06:34,063 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 304 transitions. Word has length 46 [2024-11-22 02:06:34,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:06:34,064 INFO L471 AbstractCegarLoop]: Abstraction has 241 states and 304 transitions. [2024-11-22 02:06:34,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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) [2024-11-22 02:06:34,064 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 304 transitions. [2024-11-22 02:06:34,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-22 02:06:34,066 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:06:34,067 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] [2024-11-22 02:06:34,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 02:06:34,067 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:06:34,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:06:34,068 INFO L85 PathProgramCache]: Analyzing trace with hash -209362921, now seen corresponding path program 1 times [2024-11-22 02:06:34,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:06:34,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256595102] [2024-11-22 02:06:34,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:06:34,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:06:34,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:06:34,184 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 02:06:34,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:06:34,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256595102] [2024-11-22 02:06:34,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256595102] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:06:34,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:06:34,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 02:06:34,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379811634] [2024-11-22 02:06:34,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:06:34,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 02:06:34,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:06:34,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 02:06:34,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 02:06:34,190 INFO L87 Difference]: Start difference. First operand 241 states and 304 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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) [2024-11-22 02:06:34,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:06:34,229 INFO L93 Difference]: Finished difference Result 478 states and 616 transitions. [2024-11-22 02:06:34,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 02:06:34,230 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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 46 [2024-11-22 02:06:34,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:06:34,234 INFO L225 Difference]: With dead ends: 478 [2024-11-22 02:06:34,235 INFO L226 Difference]: Without dead ends: 245 [2024-11-22 02:06:34,237 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 [2024-11-22 02:06:34,238 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 0 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:06:34,242 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 240 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:06:34,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2024-11-22 02:06:34,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 245. [2024-11-22 02:06:34,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 191 states have (on average 1.2774869109947644) internal successors, (244), 204 states have internal predecessors, (244), 29 states have call successors, (29), 24 states have call predecessors, (29), 24 states have return successors, (35), 29 states have call predecessors, (35), 29 states have call successors, (35) [2024-11-22 02:06:34,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 308 transitions. [2024-11-22 02:06:34,268 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 308 transitions. Word has length 46 [2024-11-22 02:06:34,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:06:34,269 INFO L471 AbstractCegarLoop]: Abstraction has 245 states and 308 transitions. [2024-11-22 02:06:34,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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) [2024-11-22 02:06:34,269 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 308 transitions. [2024-11-22 02:06:34,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-22 02:06:34,271 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:06:34,271 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] [2024-11-22 02:06:34,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 02:06:34,272 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:06:34,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:06:34,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1898306663, now seen corresponding path program 1 times [2024-11-22 02:06:34,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:06:34,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981060801] [2024-11-22 02:06:34,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:06:34,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:06:34,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:06:34,370 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 02:06:34,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:06:34,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981060801] [2024-11-22 02:06:34,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981060801] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:06:34,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:06:34,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:06:34,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196275876] [2024-11-22 02:06:34,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:06:34,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:06:34,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:06:34,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:06:34,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:06:34,374 INFO L87 Difference]: Start difference. First operand 245 states and 308 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2024-11-22 02:06:34,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:06:34,419 INFO L93 Difference]: Finished difference Result 609 states and 775 transitions. [2024-11-22 02:06:34,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:06:34,421 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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 46 [2024-11-22 02:06:34,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:06:34,426 INFO L225 Difference]: With dead ends: 609 [2024-11-22 02:06:34,427 INFO L226 Difference]: Without dead ends: 372 [2024-11-22 02:06:34,428 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 [2024-11-22 02:06:34,429 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 39 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 153 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 [2024-11-22 02:06:34,429 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 153 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:06:34,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2024-11-22 02:06:34,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 372. [2024-11-22 02:06:34,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 290 states have (on average 1.2482758620689656) internal successors, (362), 306 states have internal predecessors, (362), 46 states have call successors, (46), 38 states have call predecessors, (46), 35 states have return successors, (53), 43 states have call predecessors, (53), 46 states have call successors, (53) [2024-11-22 02:06:34,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 461 transitions. [2024-11-22 02:06:34,471 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 461 transitions. Word has length 46 [2024-11-22 02:06:34,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:06:34,473 INFO L471 AbstractCegarLoop]: Abstraction has 372 states and 461 transitions. [2024-11-22 02:06:34,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2024-11-22 02:06:34,473 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 461 transitions. [2024-11-22 02:06:34,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-22 02:06:34,475 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:06:34,475 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] [2024-11-22 02:06:34,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 02:06:34,476 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:06:34,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:06:34,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1296933517, now seen corresponding path program 1 times [2024-11-22 02:06:34,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:06:34,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64470081] [2024-11-22 02:06:34,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:06:34,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:06:34,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:06:34,689 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 02:06:34,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:06:34,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64470081] [2024-11-22 02:06:34,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64470081] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:06:34,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:06:34,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 02:06:34,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476829531] [2024-11-22 02:06:34,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:06:34,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 02:06:34,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:06:34,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 02:06:34,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-22 02:06:34,692 INFO L87 Difference]: Start difference. First operand 372 states and 461 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 7 states have internal predecessors, (41), 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) [2024-11-22 02:06:35,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:06:35,047 INFO L93 Difference]: Finished difference Result 1192 states and 1530 transitions. [2024-11-22 02:06:35,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-22 02:06:35,048 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 7 states have internal predecessors, (41), 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 50 [2024-11-22 02:06:35,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:06:35,053 INFO L225 Difference]: With dead ends: 1192 [2024-11-22 02:06:35,053 INFO L226 Difference]: Without dead ends: 955 [2024-11-22 02:06:35,055 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2024-11-22 02:06:35,056 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 249 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 02:06:35,056 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 574 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 02:06:35,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 955 states. [2024-11-22 02:06:35,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 955 to 901. [2024-11-22 02:06:35,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 707 states have (on average 1.2305516265912306) internal successors, (870), 751 states have internal predecessors, (870), 106 states have call successors, (106), 81 states have call predecessors, (106), 87 states have return successors, (132), 101 states have call predecessors, (132), 106 states have call successors, (132) [2024-11-22 02:06:35,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1108 transitions. [2024-11-22 02:06:35,115 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1108 transitions. Word has length 50 [2024-11-22 02:06:35,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:06:35,115 INFO L471 AbstractCegarLoop]: Abstraction has 901 states and 1108 transitions. [2024-11-22 02:06:35,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 7 states have internal predecessors, (41), 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) [2024-11-22 02:06:35,116 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1108 transitions. [2024-11-22 02:06:35,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-22 02:06:35,117 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:06:35,118 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:06:35,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 02:06:35,118 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:06:35,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:06:35,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1580462347, now seen corresponding path program 1 times [2024-11-22 02:06:35,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:06:35,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813428109] [2024-11-22 02:06:35,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:06:35,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:06:35,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:06:35,273 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-22 02:06:35,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:06:35,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813428109] [2024-11-22 02:06:35,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813428109] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:06:35,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1200842771] [2024-11-22 02:06:35,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:06:35,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:06:35,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:06:35,277 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) [2024-11-22 02:06:35,280 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 02:06:35,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:06:35,370 INFO L255 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 02:06:35,377 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:06:35,571 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:06:35,571 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 02:06:35,785 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-22 02:06:35,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1200842771] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 02:06:35,786 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 02:06:35,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 14 [2024-11-22 02:06:35,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385855296] [2024-11-22 02:06:35,786 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 02:06:35,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-22 02:06:35,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:06:35,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-22 02:06:35,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-22 02:06:35,788 INFO L87 Difference]: Start difference. First operand 901 states and 1108 transitions. Second operand has 14 states, 14 states have (on average 7.642857142857143) internal successors, (107), 12 states have internal predecessors, (107), 5 states have call successors, (14), 4 states have call predecessors, (14), 7 states have return successors, (13), 7 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-22 02:06:36,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:06:36,227 INFO L93 Difference]: Finished difference Result 1658 states and 2106 transitions. [2024-11-22 02:06:36,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-22 02:06:36,228 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.642857142857143) internal successors, (107), 12 states have internal predecessors, (107), 5 states have call successors, (14), 4 states have call predecessors, (14), 7 states have return successors, (13), 7 states have call predecessors, (13), 5 states have call successors, (13) Word has length 81 [2024-11-22 02:06:36,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:06:36,233 INFO L225 Difference]: With dead ends: 1658 [2024-11-22 02:06:36,233 INFO L226 Difference]: Without dead ends: 886 [2024-11-22 02:06:36,236 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 157 SyntacticMatches, 4 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=150, Invalid=606, Unknown=0, NotChecked=0, Total=756 [2024-11-22 02:06:36,237 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 192 mSDsluCounter, 903 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 1064 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 02:06:36,237 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 1064 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 02:06:36,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2024-11-22 02:06:36,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 803. [2024-11-22 02:06:36,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 803 states, 618 states have (on average 1.2119741100323624) internal successors, (749), 659 states have internal predecessors, (749), 100 states have call successors, (100), 84 states have call predecessors, (100), 84 states have return successors, (119), 89 states have call predecessors, (119), 100 states have call successors, (119) [2024-11-22 02:06:36,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 968 transitions. [2024-11-22 02:06:36,295 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 968 transitions. Word has length 81 [2024-11-22 02:06:36,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:06:36,296 INFO L471 AbstractCegarLoop]: Abstraction has 803 states and 968 transitions. [2024-11-22 02:06:36,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.642857142857143) internal successors, (107), 12 states have internal predecessors, (107), 5 states have call successors, (14), 4 states have call predecessors, (14), 7 states have return successors, (13), 7 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-22 02:06:36,296 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 968 transitions. [2024-11-22 02:06:36,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-22 02:06:36,299 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:06:36,299 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2024-11-22 02:06:36,325 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-22 02:06:36,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:06:36,504 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:06:36,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:06:36,505 INFO L85 PathProgramCache]: Analyzing trace with hash -158765002, now seen corresponding path program 1 times [2024-11-22 02:06:36,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:06:36,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720142764] [2024-11-22 02:06:36,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:06:36,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:06:36,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:06:36,562 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-11-22 02:06:36,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:06:36,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720142764] [2024-11-22 02:06:36,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720142764] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:06:36,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:06:36,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:06:36,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890953638] [2024-11-22 02:06:36,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:06:36,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:06:36,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:06:36,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:06:36,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:06:36,564 INFO L87 Difference]: Start difference. First operand 803 states and 968 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-22 02:06:36,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:06:36,598 INFO L93 Difference]: Finished difference Result 978 states and 1187 transitions. [2024-11-22 02:06:36,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:06:36,598 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 150 [2024-11-22 02:06:36,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:06:36,600 INFO L225 Difference]: With dead ends: 978 [2024-11-22 02:06:36,600 INFO L226 Difference]: Without dead ends: 0 [2024-11-22 02:06:36,602 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 [2024-11-22 02:06:36,602 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 39 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:06:36,603 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 194 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:06:36,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-22 02:06:36,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-22 02:06:36,603 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) [2024-11-22 02:06:36,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-22 02:06:36,604 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 150 [2024-11-22 02:06:36,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:06:36,604 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-22 02:06:36,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-22 02:06:36,604 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-22 02:06:36,604 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-22 02:06:36,607 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-22 02:06:36,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 02:06:36,609 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:06:36,612 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-22 02:06:39,275 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-22 02:06:39,322 WARN L156 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (let ((.cse8 (= |old(~pumpRunning~0)| 1)) (.cse9 (= 0 ~systemActive~0))) (let ((.cse4 (not .cse9)) (.cse1 (= |old(~waterLevel~0)| 1)) (.cse5 (= |old(~pumpRunning~0)| 0)) (.cse0 (= |old(~waterLevel~0)| 2)) (.cse2 (< |old(~switchedOnBeforeTS~0)| 1)) (.cse6 (not .cse8)) (.cse3 (<= 1 ~switchedOnBeforeTS~0))) (and (or (= 2 ~waterLevel~0) (not .cse0)) (or (not .cse1) .cse2 .cse3 .cse4) (or (not .cse5) (= ~pumpRunning~0 0)) (or .cse6 (= ~pumpRunning~0 1)) (or (not (= ~switchedOnBeforeTS~0 0)) .cse4 (= |old(~switchedOnBeforeTS~0)| 0)) (or (= |old(~waterLevel~0)| ~waterLevel~0) (= ~waterLevel~0 1)) (let ((.cse7 (= 1 ~systemActive~0))) (or (and .cse7 .cse8 .cse0) (and .cse1 .cse7 .cse5) (and .cse7 .cse8 (<= 1 |old(~switchedOnBeforeTS~0)|)) (and .cse5 .cse9) (and .cse7 .cse5 .cse0))) (or .cse2 .cse6 .cse3)))) Eliminated clause: (exists ((|old(~pumpRunning~0)| Int) (|old(~switchedOnBeforeTS~0)| Int) (|old(~waterLevel~0)| Int)) (let ((.cse9 (= 0 ~systemActive~0)) (.cse8 (= |old(~pumpRunning~0)| 1))) (let ((.cse1 (< |old(~switchedOnBeforeTS~0)| 1)) (.cse2 (< 0 ~switchedOnBeforeTS~0)) (.cse3 (not .cse8)) (.cse5 (not .cse9)) (.cse4 (= |old(~waterLevel~0)| 1)) (.cse6 (= |old(~pumpRunning~0)| 0)) (.cse0 (= |old(~waterLevel~0)| 2))) (and (or (= 2 ~waterLevel~0) (not .cse0)) (or .cse1 .cse2 .cse3) (or (not .cse4) .cse1 .cse2 .cse5) (or (not .cse6) (= ~pumpRunning~0 0)) (or .cse3 (= ~pumpRunning~0 1)) (or (not (= ~switchedOnBeforeTS~0 0)) .cse5 (= |old(~switchedOnBeforeTS~0)| 0)) (or (= |old(~waterLevel~0)| ~waterLevel~0) (= ~waterLevel~0 1)) (let ((.cse7 (= 1 ~systemActive~0))) (or (and .cse7 .cse8 .cse0) (and .cse4 .cse7 .cse6) (and .cse7 .cse8 (<= 1 |old(~switchedOnBeforeTS~0)|)) (and .cse6 .cse9) (and .cse7 .cse6 .cse0))))))) [2024-11-22 02:06:39,332 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-22 02:06:39,367 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 ((.cse1 (= 1 ~systemActive~0)) (.cse2 (= ~pumpRunning~0 1)) (.cse3 (= ~pumpRunning~0 0))) (or (and .cse1 (<= 1 ~switchedOnBeforeTS~0) .cse2) (and .cse3 .cse1 .cse0) (and .cse3 (= |old(~waterLevel~0)| 1) .cse1) (and .cse1 .cse0 .cse2) (and .cse3 (= 0 ~systemActive~0)))) (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 ((.cse1 (= 1 ~systemActive~0)) (.cse2 (= ~pumpRunning~0 1)) (.cse3 (= ~pumpRunning~0 0))) (or (and .cse1 (<= 1 ~switchedOnBeforeTS~0) .cse2) (and .cse3 .cse1 .cse0) (and .cse3 (= |old(~waterLevel~0)| 1) .cse1) (and .cse1 .cse0 .cse2) (and .cse3 (= 0 ~systemActive~0)))) (or (= |old(~waterLevel~0)| ~waterLevel~0) (= ~waterLevel~0 1))))) [2024-11-22 02:06:39,372 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-22 02:06:39,381 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 02:06:39 BoogieIcfgContainer [2024-11-22 02:06:39,381 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-22 02:06:39,382 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-22 02:06:39,382 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-22 02:06:39,382 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-22 02:06:39,383 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:06:32" (3/4) ... [2024-11-22 02:06:39,385 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-22 02:06:39,389 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-22 02:06:39,389 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-22 02:06:39,390 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-22 02:06:39,390 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-22 02:06:39,390 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-22 02:06:39,390 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2024-11-22 02:06:39,400 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2024-11-22 02:06:39,400 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-22 02:06:39,401 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-22 02:06:39,401 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-22 02:06:39,401 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-22 02:06:39,519 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-22 02:06:39,520 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-22 02:06:39,520 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-22 02:06:39,520 INFO L158 Benchmark]: Toolchain (without parser) took 8300.88ms. Allocated memory was 155.2MB in the beginning and 251.7MB in the end (delta: 96.5MB). Free memory was 81.5MB in the beginning and 204.3MB in the end (delta: -122.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 02:06:39,521 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 155.2MB. Free memory is still 128.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 02:06:39,521 INFO L158 Benchmark]: CACSL2BoogieTranslator took 540.20ms. Allocated memory is still 155.2MB. Free memory was 81.5MB in the beginning and 120.3MB in the end (delta: -38.8MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. [2024-11-22 02:06:39,521 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.51ms. Allocated memory is still 155.2MB. Free memory was 120.3MB in the beginning and 117.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-22 02:06:39,521 INFO L158 Benchmark]: Boogie Preprocessor took 45.93ms. Allocated memory is still 155.2MB. Free memory was 117.6MB in the beginning and 115.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-22 02:06:39,521 INFO L158 Benchmark]: RCFGBuilder took 540.51ms. Allocated memory is still 155.2MB. Free memory was 115.5MB in the beginning and 117.7MB in the end (delta: -2.2MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2024-11-22 02:06:39,522 INFO L158 Benchmark]: TraceAbstraction took 6990.12ms. Allocated memory was 155.2MB in the beginning and 251.7MB in the end (delta: 96.5MB). Free memory was 117.1MB in the beginning and 211.7MB in the end (delta: -94.6MB). Peak memory consumption was 140.7MB. Max. memory is 16.1GB. [2024-11-22 02:06:39,522 INFO L158 Benchmark]: Witness Printer took 138.23ms. Allocated memory is still 251.7MB. Free memory was 211.7MB in the beginning and 204.3MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-22 02:06:39,524 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 155.2MB. Free memory is still 128.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 540.20ms. Allocated memory is still 155.2MB. Free memory was 81.5MB in the beginning and 120.3MB in the end (delta: -38.8MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.51ms. Allocated memory is still 155.2MB. Free memory was 120.3MB in the beginning and 117.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.93ms. Allocated memory is still 155.2MB. Free memory was 117.6MB in the beginning and 115.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 540.51ms. Allocated memory is still 155.2MB. Free memory was 115.5MB in the beginning and 117.7MB in the end (delta: -2.2MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. * TraceAbstraction took 6990.12ms. Allocated memory was 155.2MB in the beginning and 251.7MB in the end (delta: 96.5MB). Free memory was 117.1MB in the beginning and 211.7MB in the end (delta: -94.6MB). Peak memory consumption was 140.7MB. Max. memory is 16.1GB. * Witness Printer took 138.23ms. Allocated memory is still 251.7MB. Free memory was 211.7MB in the beginning and 204.3MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] - GenericResultAtLocation [Line: 58]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [58] - GenericResultAtLocation [Line: 164]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [164] - GenericResultAtLocation [Line: 530]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [530] - GenericResultAtLocation [Line: 565]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [565] - GenericResultAtLocation [Line: 633]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [633] - GenericResultAtLocation [Line: 732]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [732] - GenericResultAtLocation [Line: 907]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [907] - 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: 54]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 84 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.1s, OverallIterations: 10, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 771 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 755 mSDsluCounter, 3506 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2482 mSDsCounter, 114 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 537 IncrementalHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 114 mSolverCounterUnsat, 1024 mSDtfsCounter, 537 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 242 GetRequests, 180 SyntacticMatches, 4 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=901occurred in iteration=8, InterpolantAutomatonStates: 65, 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, 147 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 643 NumberOfCodeBlocks, 643 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 712 ConstructedInterpolants, 0 QuantifiedInterpolants, 1290 SizeOfPredicates, 2 NumberOfNonLiveVariables, 277 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 12 InterpolantComputations, 9 PerfectInterpolantSequences, 263/282 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: 576]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 71]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 577]: Loop Invariant Derived loop invariant: ((((((((1 == systemActive) && (splverifierCounter == 0)) && (1 <= switchedOnBeforeTS)) && (pumpRunning == 1)) || ((((pumpRunning == 0) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel == 1))) || ((((pumpRunning == 0) && (2 == waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0))) || (((pumpRunning == 0) && (splverifierCounter == 0)) && (0 == systemActive))) || ((((2 == waterLevel) && (1 == systemActive)) && (splverifierCounter == 0)) && (pumpRunning == 1))) - ProcedureContractResult [Line: 768]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: (((((1 == systemActive) && (1 <= switchedOnBeforeTS)) && (pumpRunning == 1)) || (((pumpRunning == 0) && (1 == systemActive)) && (waterLevel == 1))) || (((pumpRunning == 0) && (2 == waterLevel)) && (1 == systemActive))) Ensures: ((((((1 == systemActive) && (1 <= switchedOnBeforeTS)) && (pumpRunning == 1)) || (((pumpRunning == 0) && (1 == systemActive)) && (waterLevel == 1))) || (((pumpRunning == 0) && (2 == waterLevel)) && (1 == systemActive))) && (((((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (head == \old(head))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS)))) - ProcedureContractResult [Line: 665]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Requires: (((((((1 == systemActive) && (1 <= switchedOnBeforeTS)) && (pumpRunning == 1)) || (((pumpRunning == 0) && (1 == systemActive)) && (waterLevel == 1))) || (((2 == waterLevel) && (1 == systemActive)) && (pumpRunning == 1))) || (((pumpRunning == 0) && (2 == waterLevel)) && (1 == systemActive))) || ((pumpRunning == 0) && (0 == systemActive))) Ensures: ((((((((1 == systemActive) && (1 <= switchedOnBeforeTS)) && (pumpRunning == 1)) || (((pumpRunning == 0) && (1 == systemActive)) && (waterLevel == 1))) || (((2 == waterLevel) && (1 == systemActive)) && (pumpRunning == 1))) || (((pumpRunning == 0) && (2 == waterLevel)) && (1 == systemActive))) || ((pumpRunning == 0) && (0 == systemActive))) && ((((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (head == \old(head))) && (waterLevel == \old(waterLevel))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS)))) - ProcedureContractResult [Line: 741]: Procedure Contract for timeShift Derived contract for procedure timeShift. Ensures: (((((((((\old(pumpRunning) != 0) || (\old(waterLevel) != 1)) || ((pumpRunning == 0) && (waterLevel == 1))) && (((1 <= switchedOnBeforeTS) && (pumpRunning == 1)) || (\old(pumpRunning) != 1))) && ((0 != systemActive) || ((pumpRunning == 0) && ((\old(waterLevel) == waterLevel) || (waterLevel == 1))))) && (((\old(pumpRunning) != 1) || (\old(waterLevel) != 2)) || (waterLevel == 1))) && ((((\old(pumpRunning) != 0) || ((pumpRunning == 0) && (2 == waterLevel))) || (\old(waterLevel) != 2)) || ((2 == waterLevel) && (pumpRunning == 1)))) && (((((((1 == systemActive) && (\old(pumpRunning) == 1)) && (\old(waterLevel) == 2)) || (((\old(waterLevel) == 1) && (1 == systemActive)) && (\old(pumpRunning) == 0))) || (((1 == systemActive) && (\old(pumpRunning) == 1)) && (1 <= \old(switchedOnBeforeTS)))) || ((\old(pumpRunning) == 0) && (0 == systemActive))) || (((1 == systemActive) && (\old(pumpRunning) == 0)) && (\old(waterLevel) == 2)))) && ((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (head == \old(head))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 61]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: (0 && ((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (head == \old(head))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 653]: Procedure Contract for waterRise Derived contract for procedure waterRise. Ensures: (((((2 == waterLevel) || (\old(waterLevel) != 2)) && ((2 == waterLevel) || (\old(waterLevel) != 1))) && (((((((1 == systemActive) && (1 <= switchedOnBeforeTS)) && (pumpRunning == 1)) || (((pumpRunning == 0) && (1 == systemActive)) && (\old(waterLevel) == 2))) || (((pumpRunning == 0) && (\old(waterLevel) == 1)) && (1 == systemActive))) || (((1 == systemActive) && (\old(waterLevel) == 2)) && (pumpRunning == 1))) || ((pumpRunning == 0) && (0 == systemActive)))) && ((((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (head == \old(head))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS)))) - ProcedureContractResult [Line: 828]: Procedure Contract for isPumpRunning Derived contract for procedure isPumpRunning. Requires: (((((((1 == systemActive) && (1 <= switchedOnBeforeTS)) && (pumpRunning == 1)) || (((pumpRunning == 0) && (1 == systemActive)) && (waterLevel == 1))) || (((2 == waterLevel) && (1 == systemActive)) && (pumpRunning == 1))) || (((pumpRunning == 0) && (2 == waterLevel)) && (1 == systemActive))) || ((pumpRunning == 0) && (0 == systemActive))) Ensures: (((((pumpRunning != 0) || (\result == 0)) && (((((((1 == systemActive) && (1 <= switchedOnBeforeTS)) && (pumpRunning == 1)) || (((pumpRunning == 0) && (1 == systemActive)) && (waterLevel == 1))) || (((2 == waterLevel) && (1 == systemActive)) && (pumpRunning == 1))) || (((pumpRunning == 0) && (2 == waterLevel)) && (1 == systemActive))) || ((pumpRunning == 0) && (0 == systemActive)))) && ((\result == 1) || (pumpRunning != 1))) && (((((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (head == \old(head))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS)))) RESULT: Ultimate proved your program to be correct! [2024-11-22 02:06:39,545 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