./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product59.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec4_product59.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 68cd47586ea836a40d34f69dc7bca714ffc0af5c5bf2f7fbd8cfbbd6f1019685 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 14:21:05,697 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 14:21:05,775 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 14:21:05,781 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 14:21:05,784 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 14:21:05,813 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 14:21:05,814 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 14:21:05,815 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 14:21:05,815 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 14:21:05,815 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 14:21:05,816 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 14:21:05,816 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 14:21:05,816 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 14:21:05,817 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 14:21:05,819 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 14:21:05,819 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 14:21:05,820 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 14:21:05,821 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 14:21:05,823 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 14:21:05,823 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 14:21:05,824 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 14:21:05,825 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 14:21:05,825 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 14:21:05,825 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 14:21:05,825 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 14:21:05,826 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 14:21:05,826 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 14:21:05,826 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 14:21:05,827 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 14:21:05,827 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 14:21:05,827 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 14:21:05,828 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 14:21:05,828 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:21:05,829 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 14:21:05,829 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 14:21:05,829 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 14:21:05,830 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 14:21:05,830 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 14:21:05,830 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 14:21:05,830 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 14:21:05,830 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 14:21:05,831 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 14:21:05,831 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68cd47586ea836a40d34f69dc7bca714ffc0af5c5bf2f7fbd8cfbbd6f1019685 [2024-11-18 14:21:06,090 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 14:21:06,120 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 14:21:06,124 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 14:21:06,125 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 14:21:06,126 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 14:21:06,127 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product59.cil.c [2024-11-18 14:21:07,678 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 14:21:07,892 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 14:21:07,896 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product59.cil.c [2024-11-18 14:21:07,910 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/978370d1d/9caf598a95954a26b9db639ccb2e8dda/FLAGeddea5825 [2024-11-18 14:21:08,251 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/978370d1d/9caf598a95954a26b9db639ccb2e8dda [2024-11-18 14:21:08,254 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 14:21:08,256 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 14:21:08,259 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 14:21:08,259 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 14:21:08,264 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 14:21:08,265 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:21:08" (1/1) ... [2024-11-18 14:21:08,266 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31d7b436 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:08, skipping insertion in model container [2024-11-18 14:21:08,267 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:21:08" (1/1) ... [2024-11-18 14:21:08,318 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 14:21:08,587 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_spec4_product59.cil.c[9171,9184] [2024-11-18 14:21:08,691 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:21:08,737 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 14:21:08,746 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] [2024-11-18 14:21:08,748 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [87] [2024-11-18 14:21:08,748 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [116] [2024-11-18 14:21:08,748 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [188] [2024-11-18 14:21:08,748 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [426] [2024-11-18 14:21:08,748 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [522] [2024-11-18 14:21:08,749 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [625] [2024-11-18 14:21:08,749 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [634] [2024-11-18 14:21:08,779 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_spec4_product59.cil.c[9171,9184] [2024-11-18 14:21:08,818 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:21:08,847 INFO L204 MainTranslator]: Completed translation [2024-11-18 14:21:08,848 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:08 WrapperNode [2024-11-18 14:21:08,848 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 14:21:08,849 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 14:21:08,849 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 14:21:08,849 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 14:21:08,854 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:08" (1/1) ... [2024-11-18 14:21:08,873 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:08" (1/1) ... [2024-11-18 14:21:08,907 INFO L138 Inliner]: procedures = 57, calls = 102, calls flagged for inlining = 26, calls inlined = 23, statements flattened = 230 [2024-11-18 14:21:08,907 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 14:21:08,911 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 14:21:08,911 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 14:21:08,912 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 14:21:08,920 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:08" (1/1) ... [2024-11-18 14:21:08,920 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:08" (1/1) ... [2024-11-18 14:21:08,922 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:08" (1/1) ... [2024-11-18 14:21:08,937 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-18 14:21:08,938 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:08" (1/1) ... [2024-11-18 14:21:08,940 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:08" (1/1) ... [2024-11-18 14:21:08,945 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:08" (1/1) ... [2024-11-18 14:21:08,952 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:08" (1/1) ... [2024-11-18 14:21:08,954 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:08" (1/1) ... [2024-11-18 14:21:08,955 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:08" (1/1) ... [2024-11-18 14:21:08,959 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 14:21:08,960 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 14:21:08,960 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 14:21:08,962 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 14:21:08,963 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:08" (1/1) ... [2024-11-18 14:21:08,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:21:08,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:21:08,997 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 14:21:09,001 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 14:21:09,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 14:21:09,055 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-18 14:21:09,055 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-18 14:21:09,055 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-18 14:21:09,055 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-18 14:21:09,056 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-18 14:21:09,056 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-18 14:21:09,056 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-11-18 14:21:09,056 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-11-18 14:21:09,056 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-18 14:21:09,057 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-18 14:21:09,057 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-11-18 14:21:09,057 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-11-18 14:21:09,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 14:21:09,057 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-18 14:21:09,058 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-18 14:21:09,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 14:21:09,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 14:21:09,161 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 14:21:09,164 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 14:21:09,459 INFO L? ?]: Removed 52 outVars from TransFormulas that were not future-live. [2024-11-18 14:21:09,460 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 14:21:09,477 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 14:21:09,479 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-18 14:21:09,480 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:21:09 BoogieIcfgContainer [2024-11-18 14:21:09,480 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 14:21:09,482 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 14:21:09,483 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 14:21:09,486 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 14:21:09,486 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:21:08" (1/3) ... [2024-11-18 14:21:09,487 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b5f3c8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:21:09, skipping insertion in model container [2024-11-18 14:21:09,488 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:08" (2/3) ... [2024-11-18 14:21:09,488 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b5f3c8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:21:09, skipping insertion in model container [2024-11-18 14:21:09,488 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:21:09" (3/3) ... [2024-11-18 14:21:09,489 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product59.cil.c [2024-11-18 14:21:09,507 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 14:21:09,508 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 14:21:09,586 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 14:21:09,592 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;@4b9926f0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 14:21:09,592 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 14:21:09,597 INFO L276 IsEmpty]: Start isEmpty. Operand has 93 states, 72 states have (on average 1.3888888888888888) internal successors, (100), 81 states have internal predecessors, (100), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 9 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-18 14:21:09,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-18 14:21:09,605 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:21:09,606 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:21:09,607 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:21:09,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:21:09,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1328460563, now seen corresponding path program 1 times [2024-11-18 14:21:09,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:21:09,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880472747] [2024-11-18 14:21:09,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:21:09,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:21:09,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:21:09,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:21:09,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:21:09,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880472747] [2024-11-18 14:21:09,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880472747] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:21:09,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:21:09,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 14:21:09,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456818579] [2024-11-18 14:21:09,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:21:09,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 14:21:09,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:21:09,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 14:21:09,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 14:21:09,868 INFO L87 Difference]: Start difference. First operand has 93 states, 72 states have (on average 1.3888888888888888) internal successors, (100), 81 states have internal predecessors, (100), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 9 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:21:09,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:21:09,897 INFO L93 Difference]: Finished difference Result 178 states and 243 transitions. [2024-11-18 14:21:09,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 14:21:09,899 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-11-18 14:21:09,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:21:09,906 INFO L225 Difference]: With dead ends: 178 [2024-11-18 14:21:09,906 INFO L226 Difference]: Without dead ends: 84 [2024-11-18 14:21:09,909 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 14:21:09,913 INFO L432 NwaCegarLoop]: 118 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, 118 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:21:09,913 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:21:09,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-11-18 14:21:09,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2024-11-18 14:21:09,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 65 states have (on average 1.323076923076923) internal successors, (86), 73 states have internal predecessors, (86), 12 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (11), 8 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-18 14:21:09,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 109 transitions. [2024-11-18 14:21:09,953 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 109 transitions. Word has length 19 [2024-11-18 14:21:09,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:21:09,953 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 109 transitions. [2024-11-18 14:21:09,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:21:09,954 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 109 transitions. [2024-11-18 14:21:09,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-18 14:21:09,956 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:21:09,956 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:21:09,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 14:21:09,956 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:21:09,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:21:09,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1880549764, now seen corresponding path program 1 times [2024-11-18 14:21:09,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:21:09,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772797609] [2024-11-18 14:21:09,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:21:09,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:21:09,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:21:10,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:21:10,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:21:10,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772797609] [2024-11-18 14:21:10,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772797609] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:21:10,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:21:10,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:21:10,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857863363] [2024-11-18 14:21:10,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:21:10,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:21:10,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:21:10,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:21:10,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:21:10,083 INFO L87 Difference]: Start difference. First operand 84 states and 109 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:21:10,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:21:10,105 INFO L93 Difference]: Finished difference Result 130 states and 168 transitions. [2024-11-18 14:21:10,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:21:10,106 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2024-11-18 14:21:10,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:21:10,107 INFO L225 Difference]: With dead ends: 130 [2024-11-18 14:21:10,107 INFO L226 Difference]: Without dead ends: 75 [2024-11-18 14:21:10,108 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:21:10,109 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 16 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:21:10,110 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 171 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:21:10,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-11-18 14:21:10,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2024-11-18 14:21:10,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 59 states have (on average 1.3389830508474576) internal successors, (79), 67 states have internal predecessors, (79), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 6 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-18 14:21:10,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 97 transitions. [2024-11-18 14:21:10,120 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 97 transitions. Word has length 20 [2024-11-18 14:21:10,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:21:10,120 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 97 transitions. [2024-11-18 14:21:10,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:21:10,121 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 97 transitions. [2024-11-18 14:21:10,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-18 14:21:10,122 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:21:10,122 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:21:10,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 14:21:10,122 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:21:10,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:21:10,123 INFO L85 PathProgramCache]: Analyzing trace with hash 612415945, now seen corresponding path program 1 times [2024-11-18 14:21:10,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:21:10,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113050567] [2024-11-18 14:21:10,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:21:10,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:21:10,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:21:10,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:21:10,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:21:10,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113050567] [2024-11-18 14:21:10,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113050567] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:21:10,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:21:10,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:21:10,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940756835] [2024-11-18 14:21:10,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:21:10,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:21:10,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:21:10,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:21:10,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:21:10,320 INFO L87 Difference]: Start difference. First operand 75 states and 97 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:21:10,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:21:10,538 INFO L93 Difference]: Finished difference Result 248 states and 328 transitions. [2024-11-18 14:21:10,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:21:10,538 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2024-11-18 14:21:10,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:21:10,541 INFO L225 Difference]: With dead ends: 248 [2024-11-18 14:21:10,541 INFO L226 Difference]: Without dead ends: 180 [2024-11-18 14:21:10,542 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:21:10,543 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 229 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:21:10,544 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 387 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:21:10,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2024-11-18 14:21:10,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 174. [2024-11-18 14:21:10,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 135 states have (on average 1.3703703703703705) internal successors, (185), 153 states have internal predecessors, (185), 22 states have call successors, (22), 16 states have call predecessors, (22), 16 states have return successors, (23), 14 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-18 14:21:10,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 230 transitions. [2024-11-18 14:21:10,571 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 230 transitions. Word has length 24 [2024-11-18 14:21:10,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:21:10,571 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 230 transitions. [2024-11-18 14:21:10,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:21:10,571 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 230 transitions. [2024-11-18 14:21:10,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-18 14:21:10,573 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:21:10,573 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:21:10,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 14:21:10,574 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:21:10,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:21:10,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1477369919, now seen corresponding path program 1 times [2024-11-18 14:21:10,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:21:10,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453738878] [2024-11-18 14:21:10,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:21:10,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:21:10,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:21:10,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:21:10,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:21:10,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453738878] [2024-11-18 14:21:10,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453738878] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:21:10,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:21:10,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:21:10,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865710267] [2024-11-18 14:21:10,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:21:10,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:21:10,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:21:10,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:21:10,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:21:10,727 INFO L87 Difference]: Start difference. First operand 174 states and 230 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:21:10,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:21:10,826 INFO L93 Difference]: Finished difference Result 491 states and 675 transitions. [2024-11-18 14:21:10,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:21:10,827 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2024-11-18 14:21:10,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:21:10,830 INFO L225 Difference]: With dead ends: 491 [2024-11-18 14:21:10,830 INFO L226 Difference]: Without dead ends: 324 [2024-11-18 14:21:10,833 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:21:10,834 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 62 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:21:10,834 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 350 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:21:10,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2024-11-18 14:21:10,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 324. [2024-11-18 14:21:10,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 250 states have (on average 1.344) internal successors, (336), 282 states have internal predecessors, (336), 44 states have call successors, (44), 32 states have call predecessors, (44), 29 states have return successors, (50), 25 states have call predecessors, (50), 44 states have call successors, (50) [2024-11-18 14:21:10,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 430 transitions. [2024-11-18 14:21:10,885 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 430 transitions. Word has length 28 [2024-11-18 14:21:10,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:21:10,886 INFO L471 AbstractCegarLoop]: Abstraction has 324 states and 430 transitions. [2024-11-18 14:21:10,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:21:10,886 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 430 transitions. [2024-11-18 14:21:10,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-18 14:21:10,892 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:21:10,892 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:21:10,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 14:21:10,895 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:21:10,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:21:10,896 INFO L85 PathProgramCache]: Analyzing trace with hash -30603644, now seen corresponding path program 1 times [2024-11-18 14:21:10,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:21:10,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078389347] [2024-11-18 14:21:10,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:21:10,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:21:10,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:21:10,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:21:10,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:21:10,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078389347] [2024-11-18 14:21:10,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078389347] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:21:10,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:21:10,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 14:21:10,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161987808] [2024-11-18 14:21:10,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:21:10,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:21:10,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:21:10,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:21:10,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:21:10,978 INFO L87 Difference]: Start difference. First operand 324 states and 430 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:21:11,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:21:11,044 INFO L93 Difference]: Finished difference Result 748 states and 1019 transitions. [2024-11-18 14:21:11,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:21:11,045 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2024-11-18 14:21:11,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:21:11,049 INFO L225 Difference]: With dead ends: 748 [2024-11-18 14:21:11,051 INFO L226 Difference]: Without dead ends: 431 [2024-11-18 14:21:11,052 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:21:11,055 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 56 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:21:11,058 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 151 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:21:11,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2024-11-18 14:21:11,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 420. [2024-11-18 14:21:11,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 330 states have (on average 1.2969696969696969) internal successors, (428), 357 states have internal predecessors, (428), 47 states have call successors, (47), 45 states have call predecessors, (47), 42 states have return successors, (69), 41 states have call predecessors, (69), 47 states have call successors, (69) [2024-11-18 14:21:11,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 544 transitions. [2024-11-18 14:21:11,106 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 544 transitions. Word has length 30 [2024-11-18 14:21:11,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:21:11,107 INFO L471 AbstractCegarLoop]: Abstraction has 420 states and 544 transitions. [2024-11-18 14:21:11,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:21:11,108 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 544 transitions. [2024-11-18 14:21:11,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-18 14:21:11,109 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:21:11,111 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:21:11,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 14:21:11,112 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:21:11,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:21:11,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1736818085, now seen corresponding path program 1 times [2024-11-18 14:21:11,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:21:11,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533709284] [2024-11-18 14:21:11,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:21:11,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:21:11,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:21:11,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:21:11,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:21:11,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533709284] [2024-11-18 14:21:11,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533709284] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:21:11,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:21:11,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:21:11,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356617061] [2024-11-18 14:21:11,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:21:11,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:21:11,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:21:11,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:21:11,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:21:11,224 INFO L87 Difference]: Start difference. First operand 420 states and 544 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-18 14:21:11,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:21:11,303 INFO L93 Difference]: Finished difference Result 422 states and 545 transitions. [2024-11-18 14:21:11,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:21:11,303 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2024-11-18 14:21:11,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:21:11,307 INFO L225 Difference]: With dead ends: 422 [2024-11-18 14:21:11,307 INFO L226 Difference]: Without dead ends: 420 [2024-11-18 14:21:11,308 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:21:11,310 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 49 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:21:11,311 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 328 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:21:11,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2024-11-18 14:21:11,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 420. [2024-11-18 14:21:11,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 330 states have (on average 1.2878787878787878) internal successors, (425), 357 states have internal predecessors, (425), 47 states have call successors, (47), 45 states have call predecessors, (47), 42 states have return successors, (69), 41 states have call predecessors, (69), 47 states have call successors, (69) [2024-11-18 14:21:11,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 541 transitions. [2024-11-18 14:21:11,374 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 541 transitions. Word has length 32 [2024-11-18 14:21:11,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:21:11,376 INFO L471 AbstractCegarLoop]: Abstraction has 420 states and 541 transitions. [2024-11-18 14:21:11,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-18 14:21:11,377 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 541 transitions. [2024-11-18 14:21:11,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-18 14:21:11,380 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:21:11,381 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:21:11,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 14:21:11,381 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:21:11,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:21:11,383 INFO L85 PathProgramCache]: Analyzing trace with hash -2119024627, now seen corresponding path program 1 times [2024-11-18 14:21:11,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:21:11,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874025527] [2024-11-18 14:21:11,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:21:11,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:21:11,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:21:11,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:21:11,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:21:11,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874025527] [2024-11-18 14:21:11,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874025527] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:21:11,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:21:11,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:21:11,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357709060] [2024-11-18 14:21:11,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:21:11,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:21:11,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:21:11,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:21:11,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:21:11,510 INFO L87 Difference]: Start difference. First operand 420 states and 541 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-18 14:21:11,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:21:11,574 INFO L93 Difference]: Finished difference Result 837 states and 1117 transitions. [2024-11-18 14:21:11,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:21:11,575 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (3), 1 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 46 [2024-11-18 14:21:11,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:21:11,578 INFO L225 Difference]: With dead ends: 837 [2024-11-18 14:21:11,578 INFO L226 Difference]: Without dead ends: 424 [2024-11-18 14:21:11,580 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:21:11,583 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 0 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:21:11,583 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 457 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:21:11,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2024-11-18 14:21:11,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 424. [2024-11-18 14:21:11,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 334 states have (on average 1.278443113772455) internal successors, (427), 361 states have internal predecessors, (427), 47 states have call successors, (47), 45 states have call predecessors, (47), 42 states have return successors, (69), 41 states have call predecessors, (69), 47 states have call successors, (69) [2024-11-18 14:21:11,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 543 transitions. [2024-11-18 14:21:11,630 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 543 transitions. Word has length 46 [2024-11-18 14:21:11,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:21:11,632 INFO L471 AbstractCegarLoop]: Abstraction has 424 states and 543 transitions. [2024-11-18 14:21:11,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-18 14:21:11,632 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 543 transitions. [2024-11-18 14:21:11,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-18 14:21:11,634 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:21:11,635 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:21:11,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 14:21:11,635 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:21:11,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:21:11,636 INFO L85 PathProgramCache]: Analyzing trace with hash -124879921, now seen corresponding path program 1 times [2024-11-18 14:21:11,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:21:11,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389767844] [2024-11-18 14:21:11,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:21:11,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:21:11,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:21:11,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:21:11,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:21:11,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389767844] [2024-11-18 14:21:11,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389767844] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:21:11,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:21:11,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:21:11,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430382063] [2024-11-18 14:21:11,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:21:11,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:21:11,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:21:11,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:21:11,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:21:11,721 INFO L87 Difference]: Start difference. First operand 424 states and 543 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-18 14:21:11,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:21:11,762 INFO L93 Difference]: Finished difference Result 776 states and 1018 transitions. [2024-11-18 14:21:11,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:21:11,763 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (3), 1 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 46 [2024-11-18 14:21:11,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:21:11,765 INFO L225 Difference]: With dead ends: 776 [2024-11-18 14:21:11,765 INFO L226 Difference]: Without dead ends: 359 [2024-11-18 14:21:11,767 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:21:11,768 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 0 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:21:11,769 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 370 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:21:11,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2024-11-18 14:21:11,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 359. [2024-11-18 14:21:11,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 283 states have (on average 1.2685512367491165) internal successors, (359), 305 states have internal predecessors, (359), 40 states have call successors, (40), 38 states have call predecessors, (40), 35 states have return successors, (51), 34 states have call predecessors, (51), 40 states have call successors, (51) [2024-11-18 14:21:11,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 450 transitions. [2024-11-18 14:21:11,796 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 450 transitions. Word has length 46 [2024-11-18 14:21:11,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:21:11,796 INFO L471 AbstractCegarLoop]: Abstraction has 359 states and 450 transitions. [2024-11-18 14:21:11,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-18 14:21:11,797 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 450 transitions. [2024-11-18 14:21:11,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-18 14:21:11,798 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:21:11,798 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:21:11,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 14:21:11,798 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:21:11,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:21:11,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1358294219, now seen corresponding path program 1 times [2024-11-18 14:21:11,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:21:11,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883816664] [2024-11-18 14:21:11,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:21:11,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:21:11,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:21:11,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:21:11,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:21:11,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883816664] [2024-11-18 14:21:11,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883816664] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:21:11,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:21:11,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:21:11,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579241309] [2024-11-18 14:21:11,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:21:11,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:21:11,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:21:11,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:21:11,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:21:11,898 INFO L87 Difference]: Start difference. First operand 359 states and 450 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-18 14:21:11,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:21:11,980 INFO L93 Difference]: Finished difference Result 781 states and 1043 transitions. [2024-11-18 14:21:11,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:21:11,981 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (3), 1 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 46 [2024-11-18 14:21:11,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:21:11,986 INFO L225 Difference]: With dead ends: 781 [2024-11-18 14:21:11,986 INFO L226 Difference]: Without dead ends: 536 [2024-11-18 14:21:11,988 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:21:11,988 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 51 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:21:11,988 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 511 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:21:11,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2024-11-18 14:21:12,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 531. [2024-11-18 14:21:12,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 413 states have (on average 1.2542372881355932) internal successors, (518), 444 states have internal predecessors, (518), 60 states have call successors, (60), 58 states have call predecessors, (60), 57 states have return successors, (101), 56 states have call predecessors, (101), 60 states have call successors, (101) [2024-11-18 14:21:12,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 679 transitions. [2024-11-18 14:21:12,047 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 679 transitions. Word has length 46 [2024-11-18 14:21:12,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:21:12,047 INFO L471 AbstractCegarLoop]: Abstraction has 531 states and 679 transitions. [2024-11-18 14:21:12,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-18 14:21:12,048 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 679 transitions. [2024-11-18 14:21:12,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-18 14:21:12,050 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:21:12,050 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:21:12,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 14:21:12,051 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:21:12,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:21:12,052 INFO L85 PathProgramCache]: Analyzing trace with hash -572504429, now seen corresponding path program 1 times [2024-11-18 14:21:12,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:21:12,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623690305] [2024-11-18 14:21:12,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:21:12,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:21:12,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:21:12,203 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-18 14:21:12,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:21:12,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623690305] [2024-11-18 14:21:12,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623690305] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:21:12,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [825525363] [2024-11-18 14:21:12,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:21:12,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:21:12,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:21:12,207 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:21:12,209 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 14:21:12,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:21:12,324 INFO L255 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-18 14:21:12,330 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:21:12,481 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:21:12,481 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 14:21:12,630 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-18 14:21:12,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [825525363] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 14:21:12,632 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 14:21:12,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 6 [2024-11-18 14:21:12,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405385810] [2024-11-18 14:21:12,633 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 14:21:12,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:21:12,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:21:12,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:21:12,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:21:12,634 INFO L87 Difference]: Start difference. First operand 531 states and 679 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-18 14:21:12,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:21:12,787 INFO L93 Difference]: Finished difference Result 1254 states and 1696 transitions. [2024-11-18 14:21:12,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 14:21:12,788 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 80 [2024-11-18 14:21:12,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:21:12,793 INFO L225 Difference]: With dead ends: 1254 [2024-11-18 14:21:12,794 INFO L226 Difference]: Without dead ends: 837 [2024-11-18 14:21:12,796 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 156 SyntacticMatches, 5 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-18 14:21:12,796 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 103 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:21:12,797 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 530 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:21:12,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 837 states. [2024-11-18 14:21:12,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 837 to 742. [2024-11-18 14:21:12,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 742 states, 572 states have (on average 1.2622377622377623) internal successors, (722), 617 states have internal predecessors, (722), 87 states have call successors, (87), 83 states have call predecessors, (87), 82 states have return successors, (158), 75 states have call predecessors, (158), 87 states have call successors, (158) [2024-11-18 14:21:12,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 967 transitions. [2024-11-18 14:21:12,839 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 967 transitions. Word has length 80 [2024-11-18 14:21:12,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:21:12,840 INFO L471 AbstractCegarLoop]: Abstraction has 742 states and 967 transitions. [2024-11-18 14:21:12,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-18 14:21:12,840 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 967 transitions. [2024-11-18 14:21:12,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-18 14:21:12,843 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:21:12,843 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:21:12,861 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-18 14:21:13,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-18 14:21:13,044 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:21:13,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:21:13,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1682583131, now seen corresponding path program 2 times [2024-11-18 14:21:13,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:21:13,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589233544] [2024-11-18 14:21:13,045 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-18 14:21:13,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:21:13,078 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-18 14:21:13,078 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-18 14:21:13,299 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-18 14:21:13,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:21:13,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589233544] [2024-11-18 14:21:13,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589233544] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:21:13,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:21:13,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:21:13,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311234381] [2024-11-18 14:21:13,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:21:13,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:21:13,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:21:13,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:21:13,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:21:13,302 INFO L87 Difference]: Start difference. First operand 742 states and 967 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-18 14:21:13,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:21:13,476 INFO L93 Difference]: Finished difference Result 1774 states and 2398 transitions. [2024-11-18 14:21:13,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 14:21:13,476 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 114 [2024-11-18 14:21:13,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:21:13,483 INFO L225 Difference]: With dead ends: 1774 [2024-11-18 14:21:13,483 INFO L226 Difference]: Without dead ends: 1144 [2024-11-18 14:21:13,486 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:21:13,487 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 54 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:21:13,487 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 477 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:21:13,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1144 states. [2024-11-18 14:21:13,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1144 to 1132. [2024-11-18 14:21:13,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1132 states, 873 states have (on average 1.2600229095074456) internal successors, (1100), 936 states have internal predecessors, (1100), 136 states have call successors, (136), 128 states have call predecessors, (136), 122 states have return successors, (227), 113 states have call predecessors, (227), 136 states have call successors, (227) [2024-11-18 14:21:13,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1132 states to 1132 states and 1463 transitions. [2024-11-18 14:21:13,554 INFO L78 Accepts]: Start accepts. Automaton has 1132 states and 1463 transitions. Word has length 114 [2024-11-18 14:21:13,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:21:13,554 INFO L471 AbstractCegarLoop]: Abstraction has 1132 states and 1463 transitions. [2024-11-18 14:21:13,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-18 14:21:13,554 INFO L276 IsEmpty]: Start isEmpty. Operand 1132 states and 1463 transitions. [2024-11-18 14:21:13,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-18 14:21:13,558 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:21:13,558 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:21:13,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 14:21:13,559 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:21:13,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:21:13,559 INFO L85 PathProgramCache]: Analyzing trace with hash 2126483805, now seen corresponding path program 1 times [2024-11-18 14:21:13,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:21:13,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213380915] [2024-11-18 14:21:13,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:21:13,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:21:13,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:21:13,682 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-18 14:21:13,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:21:13,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213380915] [2024-11-18 14:21:13,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213380915] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:21:13,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:21:13,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:21:13,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696832676] [2024-11-18 14:21:13,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:21:13,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:21:13,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:21:13,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:21:13,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:21:13,685 INFO L87 Difference]: Start difference. First operand 1132 states and 1463 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-18 14:21:13,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:21:13,734 INFO L93 Difference]: Finished difference Result 1652 states and 2117 transitions. [2024-11-18 14:21:13,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:21:13,734 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 114 [2024-11-18 14:21:13,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:21:13,736 INFO L225 Difference]: With dead ends: 1652 [2024-11-18 14:21:13,736 INFO L226 Difference]: Without dead ends: 0 [2024-11-18 14:21:13,740 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:21:13,741 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 0 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:21:13,742 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 351 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:21:13,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-18 14:21:13,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-18 14:21:13,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:21:13,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-18 14:21:13,744 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 114 [2024-11-18 14:21:13,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:21:13,744 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-18 14:21:13,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-18 14:21:13,744 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-18 14:21:13,744 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-18 14:21:13,747 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-18 14:21:13,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 14:21:13,750 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:21:13,752 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-18 14:21:15,795 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-18 14:21:15,829 WARN L156 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (let ((.cse0 (= |old(~pumpRunning~0)| 0))) (and (or (not (= |old(~waterLevel~0)| 1)) (= ~waterLevel~0 1)) (or (<= 2 ~waterLevel~0) (< |old(~waterLevel~0)| 2)) (or (not .cse0) (= ~pumpRunning~0 0)) (or (and .cse0 (<= 1 |old(~waterLevel~0)|)) (and (<= 2 |old(~waterLevel~0)|) (not (= 0 ~systemActive~0)))))) Eliminated clause: (exists ((|old(~pumpRunning~0)| Int) (|old(~waterLevel~0)| Int)) (let ((.cse0 (= |old(~pumpRunning~0)| 0))) (and (or (not (= |old(~waterLevel~0)| 1)) (= ~waterLevel~0 1)) (or (< |old(~waterLevel~0)| 2) (< 1 ~waterLevel~0)) (or (not .cse0) (= ~pumpRunning~0 0)) (or (and .cse0 (<= 1 |old(~waterLevel~0)|)) (and (<= 2 |old(~waterLevel~0)|) (not (= 0 ~systemActive~0))))))) [2024-11-18 14:21:15,836 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-18 14:21:15,844 WARN L156 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__highWaterSensor contained old-variable. Original clause: (and (= ~pumpRunning~0 0) (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse1 (not (= 0 ~systemActive~0)))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and .cse0 (= ~waterLevel~0 1) .cse1)))) Eliminated clause: (and (= ~pumpRunning~0 0) (let ((.cse0 (not (= 0 ~systemActive~0)))) (or (and (= ~waterLevel~0 1) .cse0) (and (<= 2 ~waterLevel~0) .cse0)))) [2024-11-18 14:21:15,849 WARN L156 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (and (or (and (<= 2 |old(~waterLevel~0)|) (not (= 0 ~systemActive~0))) (and (= ~pumpRunning~0 0) (<= 1 |old(~waterLevel~0)|))) (or (not (= |old(~waterLevel~0)| 1)) (= ~waterLevel~0 1)) (or (<= 2 ~waterLevel~0) (< |old(~waterLevel~0)| 2))) Eliminated clause: (exists ((|old(~waterLevel~0)| Int)) (and (or (and (<= 2 |old(~waterLevel~0)|) (not (= 0 ~systemActive~0))) (and (= ~pumpRunning~0 0) (<= 1 |old(~waterLevel~0)|))) (or (not (= |old(~waterLevel~0)| 1)) (= ~waterLevel~0 1)) (or (< |old(~waterLevel~0)| 2) (< 1 ~waterLevel~0)))) [2024-11-18 14:21:15,855 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-18 14:21:15,856 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 02:21:15 BoogieIcfgContainer [2024-11-18 14:21:15,856 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-18 14:21:15,856 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-18 14:21:15,856 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-18 14:21:15,856 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-18 14:21:15,857 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:21:09" (3/4) ... [2024-11-18 14:21:15,863 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-18 14:21:15,867 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-11-18 14:21:15,867 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-18 14:21:15,868 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-18 14:21:15,868 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-18 14:21:15,868 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-18 14:21:15,868 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-11-18 14:21:15,868 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-18 14:21:15,878 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2024-11-18 14:21:15,879 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-18 14:21:15,879 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-18 14:21:15,879 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-18 14:21:15,880 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-18 14:21:15,992 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-18 14:21:15,993 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-18 14:21:15,993 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-18 14:21:15,994 INFO L158 Benchmark]: Toolchain (without parser) took 7737.97ms. Allocated memory was 172.0MB in the beginning and 281.0MB in the end (delta: 109.1MB). Free memory was 100.3MB in the beginning and 145.1MB in the end (delta: -44.8MB). Peak memory consumption was 65.6MB. Max. memory is 16.1GB. [2024-11-18 14:21:15,994 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 172.0MB. Free memory is still 128.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 14:21:15,995 INFO L158 Benchmark]: CACSL2BoogieTranslator took 589.43ms. Allocated memory is still 172.0MB. Free memory was 100.2MB in the beginning and 135.8MB in the end (delta: -35.7MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. [2024-11-18 14:21:15,995 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.79ms. Allocated memory is still 172.0MB. Free memory was 135.8MB in the beginning and 133.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 14:21:15,995 INFO L158 Benchmark]: Boogie Preprocessor took 48.39ms. Allocated memory is still 172.0MB. Free memory was 133.6MB in the beginning and 130.8MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-18 14:21:15,995 INFO L158 Benchmark]: RCFGBuilder took 520.28ms. Allocated memory is still 172.0MB. Free memory was 130.8MB in the beginning and 111.3MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-18 14:21:15,996 INFO L158 Benchmark]: TraceAbstraction took 6373.87ms. Allocated memory was 172.0MB in the beginning and 281.0MB in the end (delta: 109.1MB). Free memory was 110.7MB in the beginning and 153.5MB in the end (delta: -42.8MB). Peak memory consumption was 107.5MB. Max. memory is 16.1GB. [2024-11-18 14:21:15,996 INFO L158 Benchmark]: Witness Printer took 136.85ms. Allocated memory is still 281.0MB. Free memory was 153.5MB in the beginning and 145.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-18 14:21:15,998 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 172.0MB. Free memory is still 128.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 589.43ms. Allocated memory is still 172.0MB. Free memory was 100.2MB in the beginning and 135.8MB in the end (delta: -35.7MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.79ms. Allocated memory is still 172.0MB. Free memory was 135.8MB in the beginning and 133.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.39ms. Allocated memory is still 172.0MB. Free memory was 133.6MB in the beginning and 130.8MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 520.28ms. Allocated memory is still 172.0MB. Free memory was 130.8MB in the beginning and 111.3MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 6373.87ms. Allocated memory was 172.0MB in the beginning and 281.0MB in the end (delta: 109.1MB). Free memory was 110.7MB in the beginning and 153.5MB in the end (delta: -42.8MB). Peak memory consumption was 107.5MB. Max. memory is 16.1GB. * Witness Printer took 136.85ms. Allocated memory is still 281.0MB. Free memory was 153.5MB in the beginning and 145.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [87] - GenericResultAtLocation [Line: 116]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [116] - GenericResultAtLocation [Line: 188]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [188] - GenericResultAtLocation [Line: 426]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [426] - GenericResultAtLocation [Line: 522]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [522] - GenericResultAtLocation [Line: 625]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [625] - GenericResultAtLocation [Line: 634]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [634] - 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: 630]: 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 8 procedures, 93 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.2s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 624 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 620 mSDsluCounter, 4201 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2900 mSDsCounter, 54 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 405 IncrementalHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 54 mSolverCounterUnsat, 1301 mSDtfsCounter, 405 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 232 GetRequests, 181 SyntacticMatches, 5 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1132occurred in iteration=11, InterpolantAutomatonStates: 60, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 12 MinimizatonAttempts, 129 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 679 NumberOfCodeBlocks, 679 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 745 ConstructedInterpolants, 0 QuantifiedInterpolants, 1335 SizeOfPredicates, 2 NumberOfNonLiveVariables, 282 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 14 InterpolantComputations, 11 PerfectInterpolantSequences, 190/208 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: 131]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 438]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 132]: Loop Invariant Derived loop invariant: (((((pumpRunning == 0) && (splverifierCounter == 0)) && (waterLevel == 1)) || (((2 <= waterLevel) && (splverifierCounter == 0)) && (0 != systemActive))) || (((pumpRunning == 0) && (2 <= waterLevel)) && (splverifierCounter == 0))) - ProcedureContractResult [Line: 309]: Procedure Contract for deactivatePump Derived contract for procedure deactivatePump. Requires: ((1 <= waterLevel) && (0 != systemActive)) Ensures: ((((pumpRunning == 0) && (1 <= waterLevel)) && (0 != systemActive)) && (((((systemActive == \old(systemActive)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (head == \old(head)))) - ProcedureContractResult [Line: 224]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: (((pumpRunning == 0) && (1 <= waterLevel)) && (0 != systemActive)) Ensures: ((((pumpRunning == 0) && (1 <= waterLevel)) && (0 != systemActive)) && ((((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (head == \old(head)))) - ProcedureContractResult [Line: 549]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Requires: (((2 <= waterLevel) && (0 != systemActive)) || ((pumpRunning == 0) && (1 <= waterLevel))) Ensures: ((((2 <= waterLevel) && (0 != systemActive)) || ((pumpRunning == 0) && (1 <= waterLevel))) && (((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (waterLevel == \old(waterLevel))) && (head == \old(head)))) - ProcedureContractResult [Line: 428]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: (0 && ((((systemActive == \old(systemActive)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (head == \old(head)))) - ProcedureContractResult [Line: 200]: Procedure Contract for timeShift Derived contract for procedure timeShift. Ensures: ((((((\old(waterLevel) != 1) || (waterLevel == 1)) && (((\old(pumpRunning) != 0) || (\old(waterLevel) < 2)) || (1 < waterLevel))) && (((\old(pumpRunning) == 0) && (1 <= \old(waterLevel))) || ((2 <= \old(waterLevel)) && (0 != systemActive)))) && (((2 <= waterLevel) && (0 != systemActive)) || ((pumpRunning == 0) && (1 <= waterLevel)))) && ((((systemActive == \old(systemActive)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (head == \old(head)))) - ProcedureContractResult [Line: 232]: Procedure Contract for processEnvironment__wrappee__highWaterSensor Derived contract for procedure processEnvironment__wrappee__highWaterSensor. Requires: ((pumpRunning == 0) && (((waterLevel == 1) && (0 != systemActive)) || ((2 <= waterLevel) && (0 != systemActive)))) Ensures: ((((((2 <= waterLevel) && (\old(pumpRunning) == 0)) && (0 != systemActive)) || (((\old(pumpRunning) == 0) && (waterLevel == 1)) && (0 != systemActive))) && ((pumpRunning == 0) || (1 < waterLevel))) && (((((systemActive == \old(systemActive)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (head == \old(head)))) - ProcedureContractResult [Line: 537]: Procedure Contract for waterRise Derived contract for procedure waterRise. Ensures: (((((2 <= \old(waterLevel)) && (0 != systemActive)) || ((pumpRunning == 0) && (1 <= \old(waterLevel)))) && (2 <= waterLevel)) && (((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (head == \old(head)))) RESULT: Ultimate proved your program to be correct! [2024-11-18 14:21:16,036 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