./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product61.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product61.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 f250833677b07ed1377ed852c7268af3b652ab26de7f7fe1fca27ae75baf167f --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 19:39:39,056 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 19:39:39,138 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-12 19:39:39,144 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 19:39:39,146 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 19:39:39,177 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 19:39:39,178 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 19:39:39,179 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 19:39:39,180 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 19:39:39,181 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 19:39:39,182 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 19:39:39,182 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 19:39:39,183 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 19:39:39,183 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 19:39:39,185 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 19:39:39,185 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 19:39:39,185 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 19:39:39,186 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 19:39:39,186 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 19:39:39,186 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 19:39:39,186 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 19:39:39,189 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 19:39:39,190 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 19:39:39,190 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 19:39:39,190 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 19:39:39,190 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 19:39:39,191 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 19:39:39,191 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 19:39:39,191 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 19:39:39,192 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 19:39:39,192 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 19:39:39,192 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 19:39:39,192 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 19:39:39,192 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 19:39:39,193 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 19:39:39,193 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 19:39:39,193 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 19:39:39,194 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 19:39:39,194 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 19:39:39,195 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 19:39:39,195 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 19:39:39,195 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 19:39:39,196 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f250833677b07ed1377ed852c7268af3b652ab26de7f7fe1fca27ae75baf167f [2024-10-12 19:39:39,443 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 19:39:39,465 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 19:39:39,468 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 19:39:39,469 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 19:39:39,470 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 19:39:39,471 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product61.cil.c [2024-10-12 19:39:40,840 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 19:39:41,066 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 19:39:41,071 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product61.cil.c [2024-10-12 19:39:41,093 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/849eee32e/93f13595c0dc459faf67d368750f999a/FLAGfdadb86e2 [2024-10-12 19:39:41,402 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/849eee32e/93f13595c0dc459faf67d368750f999a [2024-10-12 19:39:41,404 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 19:39:41,405 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 19:39:41,406 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 19:39:41,406 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 19:39:41,411 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 19:39:41,412 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 07:39:41" (1/1) ... [2024-10-12 19:39:41,413 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7801aaea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:39:41, skipping insertion in model container [2024-10-12 19:39:41,413 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 07:39:41" (1/1) ... [2024-10-12 19:39:41,465 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 19:39:41,664 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product61.cil.c[3777,3790] [2024-10-12 19:39:41,778 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 19:39:41,799 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 19:39:41,809 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] [2024-10-12 19:39:41,810 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [87] [2024-10-12 19:39:41,811 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [198] [2024-10-12 19:39:41,811 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [207] [2024-10-12 19:39:41,811 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [234] [2024-10-12 19:39:41,811 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [333] [2024-10-12 19:39:41,812 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [575] [2024-10-12 19:39:41,812 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [640] [2024-10-12 19:39:41,822 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product61.cil.c[3777,3790] [2024-10-12 19:39:41,866 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 19:39:41,884 INFO L204 MainTranslator]: Completed translation [2024-10-12 19:39:41,885 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:39:41 WrapperNode [2024-10-12 19:39:41,885 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 19:39:41,886 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 19:39:41,886 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 19:39:41,886 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 19:39:41,892 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:39:41" (1/1) ... [2024-10-12 19:39:41,904 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:39:41" (1/1) ... [2024-10-12 19:39:41,928 INFO L138 Inliner]: procedures = 57, calls = 104, calls flagged for inlining = 22, calls inlined = 19, statements flattened = 215 [2024-10-12 19:39:41,928 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 19:39:41,929 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 19:39:41,929 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 19:39:41,929 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 19:39:41,939 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:39:41" (1/1) ... [2024-10-12 19:39:41,939 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:39:41" (1/1) ... [2024-10-12 19:39:41,942 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:39:41" (1/1) ... [2024-10-12 19:39:41,969 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-12 19:39:41,970 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:39:41" (1/1) ... [2024-10-12 19:39:41,970 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:39:41" (1/1) ... [2024-10-12 19:39:41,977 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:39:41" (1/1) ... [2024-10-12 19:39:41,981 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:39:41" (1/1) ... [2024-10-12 19:39:41,983 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:39:41" (1/1) ... [2024-10-12 19:39:41,984 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:39:41" (1/1) ... [2024-10-12 19:39:41,986 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 19:39:41,987 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 19:39:41,987 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 19:39:41,987 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 19:39:41,988 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:39:41" (1/1) ... [2024-10-12 19:39:41,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 19:39:42,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:39:42,026 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-12 19:39:42,031 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-12 19:39:42,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 19:39:42,080 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-10-12 19:39:42,080 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-10-12 19:39:42,080 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-10-12 19:39:42,080 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-10-12 19:39:42,080 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-10-12 19:39:42,081 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-10-12 19:39:42,081 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2024-10-12 19:39:42,081 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2024-10-12 19:39:42,081 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-10-12 19:39:42,081 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-10-12 19:39:42,081 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-10-12 19:39:42,082 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-10-12 19:39:42,082 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2024-10-12 19:39:42,082 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2024-10-12 19:39:42,082 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2024-10-12 19:39:42,082 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2024-10-12 19:39:42,083 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-10-12 19:39:42,083 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-10-12 19:39:42,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 19:39:42,083 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-10-12 19:39:42,084 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-10-12 19:39:42,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 19:39:42,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 19:39:42,172 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 19:39:42,174 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 19:39:42,547 INFO L? ?]: Removed 50 outVars from TransFormulas that were not future-live. [2024-10-12 19:39:42,548 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 19:39:42,597 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 19:39:42,598 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-12 19:39:42,598 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:39:42 BoogieIcfgContainer [2024-10-12 19:39:42,598 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 19:39:42,600 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 19:39:42,600 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 19:39:42,604 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 19:39:42,604 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 07:39:41" (1/3) ... [2024-10-12 19:39:42,605 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@690afa7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 07:39:42, skipping insertion in model container [2024-10-12 19:39:42,605 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:39:41" (2/3) ... [2024-10-12 19:39:42,605 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@690afa7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 07:39:42, skipping insertion in model container [2024-10-12 19:39:42,606 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:39:42" (3/3) ... [2024-10-12 19:39:42,607 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product61.cil.c [2024-10-12 19:39:42,622 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 19:39:42,622 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-12 19:39:42,671 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 19:39:42,677 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;@5512b83, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 19:39:42,678 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-12 19:39:42,681 INFO L276 IsEmpty]: Start isEmpty. Operand has 88 states, 58 states have (on average 1.5) internal successors, (87), 68 states have internal predecessors, (87), 18 states have call successors, (18), 10 states have call predecessors, (18), 10 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-12 19:39:42,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-10-12 19:39:42,689 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:39:42,690 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:39:42,690 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:39:42,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:39:42,694 INFO L85 PathProgramCache]: Analyzing trace with hash 945414866, now seen corresponding path program 1 times [2024-10-12 19:39:42,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:39:42,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674662036] [2024-10-12 19:39:42,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:39:42,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:39:42,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:42,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-12 19:39:42,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:42,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 19:39:42,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:39:42,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674662036] [2024-10-12 19:39:42,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674662036] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:39:42,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:39:42,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 19:39:42,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148500501] [2024-10-12 19:39:42,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:39:42,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-12 19:39:42,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:39:42,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-12 19:39:42,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-12 19:39:42,906 INFO L87 Difference]: Start difference. First operand has 88 states, 58 states have (on average 1.5) internal successors, (87), 68 states have internal predecessors, (87), 18 states have call successors, (18), 10 states have call predecessors, (18), 10 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-12 19:39:42,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:39:42,971 INFO L93 Difference]: Finished difference Result 174 states and 247 transitions. [2024-10-12 19:39:42,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-12 19:39:42,973 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2024-10-12 19:39:42,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:39:42,982 INFO L225 Difference]: With dead ends: 174 [2024-10-12 19:39:42,982 INFO L226 Difference]: Without dead ends: 83 [2024-10-12 19:39:42,986 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-12 19:39:42,989 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 19:39:42,989 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 103 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 19:39:43,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-10-12 19:39:43,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2024-10-12 19:39:43,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 55 states have (on average 1.4) internal successors, (77), 64 states have internal predecessors, (77), 18 states have call successors, (18), 10 states have call predecessors, (18), 9 states have return successors, (17), 12 states have call predecessors, (17), 17 states have call successors, (17) [2024-10-12 19:39:43,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 112 transitions. [2024-10-12 19:39:43,033 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 112 transitions. Word has length 16 [2024-10-12 19:39:43,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:39:43,033 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 112 transitions. [2024-10-12 19:39:43,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-12 19:39:43,034 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 112 transitions. [2024-10-12 19:39:43,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-10-12 19:39:43,037 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:39:43,037 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:39:43,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-12 19:39:43,038 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:39:43,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:39:43,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1394773478, now seen corresponding path program 1 times [2024-10-12 19:39:43,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:39:43,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295378696] [2024-10-12 19:39:43,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:39:43,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:39:43,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:43,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-12 19:39:43,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:43,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 19:39:43,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:39:43,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295378696] [2024-10-12 19:39:43,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295378696] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:39:43,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:39:43,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 19:39:43,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346895454] [2024-10-12 19:39:43,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:39:43,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 19:39:43,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:39:43,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 19:39:43,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 19:39:43,149 INFO L87 Difference]: Start difference. First operand 83 states and 112 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-12 19:39:43,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:39:43,197 INFO L93 Difference]: Finished difference Result 139 states and 187 transitions. [2024-10-12 19:39:43,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 19:39:43,198 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2024-10-12 19:39:43,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:39:43,199 INFO L225 Difference]: With dead ends: 139 [2024-10-12 19:39:43,199 INFO L226 Difference]: Without dead ends: 75 [2024-10-12 19:39:43,200 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 19:39:43,201 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 11 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 19:39:43,201 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 164 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 19:39:43,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-10-12 19:39:43,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2024-10-12 19:39:43,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 50 states have (on average 1.42) internal successors, (71), 59 states have internal predecessors, (71), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-12 19:39:43,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 101 transitions. [2024-10-12 19:39:43,211 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 101 transitions. Word has length 17 [2024-10-12 19:39:43,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:39:43,212 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 101 transitions. [2024-10-12 19:39:43,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-12 19:39:43,212 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 101 transitions. [2024-10-12 19:39:43,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-10-12 19:39:43,213 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:39:43,213 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] [2024-10-12 19:39:43,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-12 19:39:43,214 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:39:43,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:39:43,214 INFO L85 PathProgramCache]: Analyzing trace with hash -567555512, now seen corresponding path program 1 times [2024-10-12 19:39:43,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:39:43,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567435835] [2024-10-12 19:39:43,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:39:43,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:39:43,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:43,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-12 19:39:43,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:43,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 19:39:43,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:39:43,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567435835] [2024-10-12 19:39:43,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567435835] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:39:43,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:39:43,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 19:39:43,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903452724] [2024-10-12 19:39:43,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:39:43,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 19:39:43,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:39:43,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 19:39:43,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 19:39:43,337 INFO L87 Difference]: Start difference. First operand 75 states and 101 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-12 19:39:43,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:39:43,378 INFO L93 Difference]: Finished difference Result 148 states and 201 transitions. [2024-10-12 19:39:43,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 19:39:43,379 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 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 20 [2024-10-12 19:39:43,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:39:43,381 INFO L225 Difference]: With dead ends: 148 [2024-10-12 19:39:43,381 INFO L226 Difference]: Without dead ends: 75 [2024-10-12 19:39:43,381 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 19:39:43,385 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 89 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 19:39:43,385 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 87 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 19:39:43,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-10-12 19:39:43,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2024-10-12 19:39:43,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 50 states have (on average 1.4) internal successors, (70), 59 states have internal predecessors, (70), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-12 19:39:43,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 100 transitions. [2024-10-12 19:39:43,416 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 100 transitions. Word has length 20 [2024-10-12 19:39:43,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:39:43,416 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 100 transitions. [2024-10-12 19:39:43,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-12 19:39:43,417 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 100 transitions. [2024-10-12 19:39:43,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-10-12 19:39:43,418 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:39:43,418 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] [2024-10-12 19:39:43,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-12 19:39:43,419 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:39:43,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:39:43,420 INFO L85 PathProgramCache]: Analyzing trace with hash -867220679, now seen corresponding path program 1 times [2024-10-12 19:39:43,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:39:43,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952647878] [2024-10-12 19:39:43,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:39:43,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:39:43,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:43,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-12 19:39:43,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:43,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-12 19:39:43,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:43,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-12 19:39:43,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:43,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 19:39:43,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:39:43,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952647878] [2024-10-12 19:39:43,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952647878] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:39:43,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:39:43,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 19:39:43,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444526735] [2024-10-12 19:39:43,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:39:43,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 19:39:43,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:39:43,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 19:39:43,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-12 19:39:43,619 INFO L87 Difference]: Start difference. First operand 75 states and 100 transitions. Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-12 19:39:43,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:39:43,971 INFO L93 Difference]: Finished difference Result 223 states and 297 transitions. [2024-10-12 19:39:43,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-12 19:39:43,972 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 33 [2024-10-12 19:39:43,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:39:43,974 INFO L225 Difference]: With dead ends: 223 [2024-10-12 19:39:43,974 INFO L226 Difference]: Without dead ends: 150 [2024-10-12 19:39:43,975 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-12 19:39:43,976 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 143 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-12 19:39:43,977 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 271 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-12 19:39:43,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-10-12 19:39:44,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 144. [2024-10-12 19:39:44,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 99 states have (on average 1.3232323232323233) internal successors, (131), 108 states have internal predecessors, (131), 22 states have call successors, (22), 17 states have call predecessors, (22), 22 states have return successors, (33), 24 states have call predecessors, (33), 22 states have call successors, (33) [2024-10-12 19:39:44,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 186 transitions. [2024-10-12 19:39:44,005 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 186 transitions. Word has length 33 [2024-10-12 19:39:44,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:39:44,009 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 186 transitions. [2024-10-12 19:39:44,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-12 19:39:44,010 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 186 transitions. [2024-10-12 19:39:44,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-10-12 19:39:44,011 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:39:44,011 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] [2024-10-12 19:39:44,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-12 19:39:44,011 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:39:44,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:39:44,013 INFO L85 PathProgramCache]: Analyzing trace with hash 166717757, now seen corresponding path program 1 times [2024-10-12 19:39:44,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:39:44,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107083376] [2024-10-12 19:39:44,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:39:44,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:39:44,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:44,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-12 19:39:44,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:44,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:39:44,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:44,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-12 19:39:44,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:44,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-12 19:39:44,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:44,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 19:39:44,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:39:44,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107083376] [2024-10-12 19:39:44,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107083376] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:39:44,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:39:44,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 19:39:44,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429072235] [2024-10-12 19:39:44,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:39:44,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 19:39:44,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:39:44,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 19:39:44,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 19:39:44,184 INFO L87 Difference]: Start difference. First operand 144 states and 186 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-12 19:39:44,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:39:44,405 INFO L93 Difference]: Finished difference Result 148 states and 188 transitions. [2024-10-12 19:39:44,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-12 19:39:44,406 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 40 [2024-10-12 19:39:44,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:39:44,409 INFO L225 Difference]: With dead ends: 148 [2024-10-12 19:39:44,410 INFO L226 Difference]: Without dead ends: 146 [2024-10-12 19:39:44,410 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-12 19:39:44,411 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 120 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 19:39:44,411 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 204 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 19:39:44,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-10-12 19:39:44,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 144. [2024-10-12 19:39:44,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 99 states have (on average 1.303030303030303) internal successors, (129), 108 states have internal predecessors, (129), 22 states have call successors, (22), 17 states have call predecessors, (22), 22 states have return successors, (33), 24 states have call predecessors, (33), 22 states have call successors, (33) [2024-10-12 19:39:44,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 184 transitions. [2024-10-12 19:39:44,442 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 184 transitions. Word has length 40 [2024-10-12 19:39:44,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:39:44,442 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 184 transitions. [2024-10-12 19:39:44,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-12 19:39:44,443 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 184 transitions. [2024-10-12 19:39:44,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-10-12 19:39:44,444 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:39:44,444 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:39:44,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-12 19:39:44,444 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:39:44,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:39:44,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1787399124, now seen corresponding path program 1 times [2024-10-12 19:39:44,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:39:44,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015712260] [2024-10-12 19:39:44,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:39:44,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:39:44,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:44,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-12 19:39:44,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:44,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:39:44,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:44,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-12 19:39:44,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:44,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:39:44,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:44,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-12 19:39:44,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:44,559 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-12 19:39:44,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:39:44,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015712260] [2024-10-12 19:39:44,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015712260] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:39:44,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:39:44,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 19:39:44,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268194028] [2024-10-12 19:39:44,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:39:44,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 19:39:44,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:39:44,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 19:39:44,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 19:39:44,562 INFO L87 Difference]: Start difference. First operand 144 states and 184 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-12 19:39:44,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:39:44,757 INFO L93 Difference]: Finished difference Result 290 states and 382 transitions. [2024-10-12 19:39:44,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 19:39:44,758 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 47 [2024-10-12 19:39:44,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:39:44,759 INFO L225 Difference]: With dead ends: 290 [2024-10-12 19:39:44,759 INFO L226 Difference]: Without dead ends: 148 [2024-10-12 19:39:44,763 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:39:44,764 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 57 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 19:39:44,764 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 216 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 19:39:44,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2024-10-12 19:39:44,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 146. [2024-10-12 19:39:44,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 101 states have (on average 1.297029702970297) internal successors, (131), 110 states have internal predecessors, (131), 22 states have call successors, (22), 17 states have call predecessors, (22), 22 states have return successors, (33), 24 states have call predecessors, (33), 22 states have call successors, (33) [2024-10-12 19:39:44,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 186 transitions. [2024-10-12 19:39:44,795 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 186 transitions. Word has length 47 [2024-10-12 19:39:44,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:39:44,798 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 186 transitions. [2024-10-12 19:39:44,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-12 19:39:44,798 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 186 transitions. [2024-10-12 19:39:44,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-10-12 19:39:44,799 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:39:44,799 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:39:44,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-12 19:39:44,799 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:39:44,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:39:44,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1849438738, now seen corresponding path program 1 times [2024-10-12 19:39:44,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:39:44,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309581754] [2024-10-12 19:39:44,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:39:44,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:39:44,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:44,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-12 19:39:44,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:44,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:39:44,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:44,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-12 19:39:44,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:44,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:39:44,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:44,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-12 19:39:44,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:44,961 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-12 19:39:44,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:39:44,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309581754] [2024-10-12 19:39:44,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309581754] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:39:44,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:39:44,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 19:39:44,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572428181] [2024-10-12 19:39:44,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:39:44,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 19:39:44,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:39:44,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 19:39:44,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-12 19:39:44,964 INFO L87 Difference]: Start difference. First operand 146 states and 186 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-12 19:39:45,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:39:45,173 INFO L93 Difference]: Finished difference Result 294 states and 386 transitions. [2024-10-12 19:39:45,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 19:39:45,174 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 47 [2024-10-12 19:39:45,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:39:45,176 INFO L225 Difference]: With dead ends: 294 [2024-10-12 19:39:45,176 INFO L226 Difference]: Without dead ends: 150 [2024-10-12 19:39:45,177 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-10-12 19:39:45,180 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 133 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 19:39:45,180 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 205 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 19:39:45,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-10-12 19:39:45,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 148. [2024-10-12 19:39:45,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 103 states have (on average 1.2912621359223302) internal successors, (133), 112 states have internal predecessors, (133), 22 states have call successors, (22), 17 states have call predecessors, (22), 22 states have return successors, (33), 24 states have call predecessors, (33), 22 states have call successors, (33) [2024-10-12 19:39:45,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 188 transitions. [2024-10-12 19:39:45,197 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 188 transitions. Word has length 47 [2024-10-12 19:39:45,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:39:45,198 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 188 transitions. [2024-10-12 19:39:45,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-12 19:39:45,198 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 188 transitions. [2024-10-12 19:39:45,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-10-12 19:39:45,199 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:39:45,200 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:39:45,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-12 19:39:45,200 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:39:45,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:39:45,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1339965648, now seen corresponding path program 1 times [2024-10-12 19:39:45,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:39:45,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41970031] [2024-10-12 19:39:45,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:39:45,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:39:45,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:45,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-12 19:39:45,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:45,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:39:45,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:45,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-12 19:39:45,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:45,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:39:45,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:45,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-12 19:39:45,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:45,303 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-12 19:39:45,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:39:45,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41970031] [2024-10-12 19:39:45,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41970031] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:39:45,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:39:45,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 19:39:45,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72972881] [2024-10-12 19:39:45,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:39:45,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 19:39:45,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:39:45,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 19:39:45,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 19:39:45,305 INFO L87 Difference]: Start difference. First operand 148 states and 188 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-10-12 19:39:45,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:39:45,640 INFO L93 Difference]: Finished difference Result 461 states and 631 transitions. [2024-10-12 19:39:45,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-12 19:39:45,641 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 47 [2024-10-12 19:39:45,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:39:45,643 INFO L225 Difference]: With dead ends: 461 [2024-10-12 19:39:45,643 INFO L226 Difference]: Without dead ends: 315 [2024-10-12 19:39:45,644 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:39:45,646 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 210 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-12 19:39:45,647 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 285 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-12 19:39:45,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2024-10-12 19:39:45,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 311. [2024-10-12 19:39:45,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 217 states have (on average 1.2903225806451613) internal successors, (280), 232 states have internal predecessors, (280), 49 states have call successors, (49), 43 states have call predecessors, (49), 44 states have return successors, (82), 47 states have call predecessors, (82), 49 states have call successors, (82) [2024-10-12 19:39:45,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 411 transitions. [2024-10-12 19:39:45,705 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 411 transitions. Word has length 47 [2024-10-12 19:39:45,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:39:45,705 INFO L471 AbstractCegarLoop]: Abstraction has 311 states and 411 transitions. [2024-10-12 19:39:45,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-10-12 19:39:45,705 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 411 transitions. [2024-10-12 19:39:45,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-10-12 19:39:45,707 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:39:45,707 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:39:45,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-12 19:39:45,707 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:39:45,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:39:45,708 INFO L85 PathProgramCache]: Analyzing trace with hash 2129281706, now seen corresponding path program 1 times [2024-10-12 19:39:45,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:39:45,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113549679] [2024-10-12 19:39:45,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:39:45,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:39:45,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:45,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-12 19:39:45,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:45,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-12 19:39:45,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:45,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:39:45,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:45,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-12 19:39:45,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:45,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:39:45,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:45,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-12 19:39:45,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:45,902 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-12 19:39:45,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:39:45,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113549679] [2024-10-12 19:39:45,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113549679] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:39:45,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:39:45,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-12 19:39:45,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17403202] [2024-10-12 19:39:45,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:39:45,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-12 19:39:45,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:39:45,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-12 19:39:45,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-12 19:39:45,905 INFO L87 Difference]: Start difference. First operand 311 states and 411 transitions. Second operand has 8 states, 7 states have (on average 5.428571428571429) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-12 19:39:46,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:39:46,491 INFO L93 Difference]: Finished difference Result 1021 states and 1399 transitions. [2024-10-12 19:39:46,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-12 19:39:46,492 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.428571428571429) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 51 [2024-10-12 19:39:46,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:39:46,498 INFO L225 Difference]: With dead ends: 1021 [2024-10-12 19:39:46,498 INFO L226 Difference]: Without dead ends: 712 [2024-10-12 19:39:46,500 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=112, Invalid=350, Unknown=0, NotChecked=0, Total=462 [2024-10-12 19:39:46,500 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 301 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-12 19:39:46,501 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 237 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-12 19:39:46,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2024-10-12 19:39:46,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 706. [2024-10-12 19:39:46,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 706 states, 489 states have (on average 1.247443762781186) internal successors, (610), 526 states have internal predecessors, (610), 118 states have call successors, (118), 86 states have call predecessors, (118), 98 states have return successors, (214), 116 states have call predecessors, (214), 118 states have call successors, (214) [2024-10-12 19:39:46,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 942 transitions. [2024-10-12 19:39:46,585 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 942 transitions. Word has length 51 [2024-10-12 19:39:46,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:39:46,586 INFO L471 AbstractCegarLoop]: Abstraction has 706 states and 942 transitions. [2024-10-12 19:39:46,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.428571428571429) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-12 19:39:46,586 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 942 transitions. [2024-10-12 19:39:46,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-10-12 19:39:46,587 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:39:46,588 INFO L215 NwaCegarLoop]: trace histogram [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, 1] [2024-10-12 19:39:46,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-12 19:39:46,588 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:39:46,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:39:46,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1377951846, now seen corresponding path program 1 times [2024-10-12 19:39:46,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:39:46,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171567108] [2024-10-12 19:39:46,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:39:46,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:39:46,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:46,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-12 19:39:46,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:46,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-12 19:39:46,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:46,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:39:46,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:46,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:39:46,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:46,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-12 19:39:46,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:46,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:39:46,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:46,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-12 19:39:46,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:46,849 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-12 19:39:46,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:39:46,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171567108] [2024-10-12 19:39:46,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171567108] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 19:39:46,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [317611801] [2024-10-12 19:39:46,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:39:46,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 19:39:46,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:39:46,852 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) [2024-10-12 19:39:46,859 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-12 19:39:46,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:46,937 INFO L255 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-12 19:39:46,942 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 19:39:47,167 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 19:39:47,167 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 19:39:47,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [317611801] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:39:47,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 19:39:47,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [15] total 21 [2024-10-12 19:39:47,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896057086] [2024-10-12 19:39:47,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:39:47,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-12 19:39:47,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:39:47,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-12 19:39:47,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2024-10-12 19:39:47,169 INFO L87 Difference]: Start difference. First operand 706 states and 942 transitions. Second operand has 8 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 3 states have call successors, (8), 3 states have call predecessors, (8), 5 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2024-10-12 19:39:47,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:39:47,410 INFO L93 Difference]: Finished difference Result 1382 states and 1851 transitions. [2024-10-12 19:39:47,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-12 19:39:47,411 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 3 states have call successors, (8), 3 states have call predecessors, (8), 5 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) Word has length 55 [2024-10-12 19:39:47,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:39:47,415 INFO L225 Difference]: With dead ends: 1382 [2024-10-12 19:39:47,416 INFO L226 Difference]: Without dead ends: 678 [2024-10-12 19:39:47,418 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2024-10-12 19:39:47,419 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 66 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 598 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 19:39:47,452 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 598 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 19:39:47,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2024-10-12 19:39:47,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 678. [2024-10-12 19:39:47,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678 states, 469 states have (on average 1.232409381663113) internal successors, (578), 505 states have internal predecessors, (578), 115 states have call successors, (115), 84 states have call predecessors, (115), 93 states have return successors, (192), 110 states have call predecessors, (192), 115 states have call successors, (192) [2024-10-12 19:39:47,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 885 transitions. [2024-10-12 19:39:47,545 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 885 transitions. Word has length 55 [2024-10-12 19:39:47,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:39:47,546 INFO L471 AbstractCegarLoop]: Abstraction has 678 states and 885 transitions. [2024-10-12 19:39:47,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 3 states have call successors, (8), 3 states have call predecessors, (8), 5 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2024-10-12 19:39:47,546 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 885 transitions. [2024-10-12 19:39:47,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-12 19:39:47,550 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:39:47,551 INFO L215 NwaCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:39:47,570 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-12 19:39:47,752 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 [2024-10-12 19:39:47,752 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:39:47,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:39:47,753 INFO L85 PathProgramCache]: Analyzing trace with hash 135949448, now seen corresponding path program 1 times [2024-10-12 19:39:47,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:39:47,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473547140] [2024-10-12 19:39:47,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:39:47,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:39:47,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:47,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-12 19:39:47,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:47,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-12 19:39:47,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:47,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-12 19:39:47,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:47,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:39:47,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:47,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-12 19:39:47,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:47,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:39:47,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:47,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-12 19:39:47,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:47,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-12 19:39:47,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:47,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-12 19:39:47,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:47,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:39:47,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:48,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-12 19:39:48,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:48,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-12 19:39:48,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:48,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:39:48,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:48,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-12 19:39:48,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:48,028 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 11 proven. 10 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-10-12 19:39:48,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:39:48,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473547140] [2024-10-12 19:39:48,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473547140] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 19:39:48,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [541914491] [2024-10-12 19:39:48,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:39:48,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 19:39:48,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:39:48,031 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 19:39:48,035 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-12 19:39:48,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:39:48,128 INFO L255 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-12 19:39:48,131 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 19:39:48,263 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-12 19:39:48,266 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 19:39:48,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [541914491] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:39:48,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 19:39:48,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [14] total 19 [2024-10-12 19:39:48,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312383845] [2024-10-12 19:39:48,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:39:48,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-12 19:39:48,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:39:48,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-12 19:39:48,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2024-10-12 19:39:48,269 INFO L87 Difference]: Start difference. First operand 678 states and 885 transitions. Second operand has 8 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (15), 3 states have call predecessors, (15), 5 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-12 19:39:48,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:39:48,454 INFO L93 Difference]: Finished difference Result 1253 states and 1648 transitions. [2024-10-12 19:39:48,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-12 19:39:48,455 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (15), 3 states have call predecessors, (15), 5 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) Word has length 102 [2024-10-12 19:39:48,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:39:48,458 INFO L225 Difference]: With dead ends: 1253 [2024-10-12 19:39:48,458 INFO L226 Difference]: Without dead ends: 0 [2024-10-12 19:39:48,462 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2024-10-12 19:39:48,463 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 58 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 19:39:48,463 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 661 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 19:39:48,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-12 19:39:48,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-12 19:39:48,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 19:39:48,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-12 19:39:48,465 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 102 [2024-10-12 19:39:48,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:39:48,465 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-12 19:39:48,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (15), 3 states have call predecessors, (15), 5 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-12 19:39:48,466 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-12 19:39:48,466 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-12 19:39:48,468 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-12 19:39:48,487 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-12 19:39:48,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-12 19:39:48,672 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:39:48,674 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-12 19:39:51,664 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-12 19:39:51,683 WARN L155 FloydHoareUtils]: Requires clause for deactivatePump contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse0 (= 1 ~systemActive~0))) (or (and (<= 1 ~methaneLevelCritical~0) .cse0) (and (= ~methaneLevelCritical~0 0) .cse0)))) Eliminated clause: (let ((.cse0 (= 1 ~systemActive~0))) (or (and (<= 1 ~methaneLevelCritical~0) .cse0) (and (= ~methaneLevelCritical~0 0) .cse0))) [2024-10-12 19:39:51,696 WARN L155 FloydHoareUtils]: Requires clause for changeMethaneLevel contained old-variable. Original clause: (let ((.cse1 (= |old(~methaneLevelCritical~0)| 0))) (and (or (<= 1 ~methaneLevelCritical~0) (< |old(~methaneLevelCritical~0)| 1)) (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= ~pumpRunning~0 0) (<= 1 |old(~methaneLevelCritical~0)|) .cse0) (and .cse1 .cse0))) (or (not .cse1) (= ~methaneLevelCritical~0 0)))) Eliminated clause: (exists ((|old(~methaneLevelCritical~0)| Int)) (let ((.cse1 (= |old(~methaneLevelCritical~0)| 0))) (and (or (< |old(~methaneLevelCritical~0)| 1) (< 0 ~methaneLevelCritical~0)) (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= ~pumpRunning~0 0) (<= 1 |old(~methaneLevelCritical~0)|) .cse0) (and .cse1 .cse0))) (or (not .cse1) (= ~methaneLevelCritical~0 0))))) [2024-10-12 19:39:51,699 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-12 19:39:51,703 WARN L155 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse0 (= 1 ~systemActive~0))) (or (and (<= 1 ~methaneLevelCritical~0) .cse0) (and (= ~methaneLevelCritical~0 0) .cse0))) (= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (let ((.cse0 (= 1 ~systemActive~0))) (or (and (<= 1 ~methaneLevelCritical~0) .cse0) (and (= ~methaneLevelCritical~0 0) .cse0))) [2024-10-12 19:39:51,710 WARN L155 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__highWaterSensor contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= ~methaneLevelCritical~0 0) .cse0) (and (<= 1 ~methaneLevelCritical~0) .cse0 (= |old(~pumpRunning~0)| 0))))) Eliminated clause: (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= ~methaneLevelCritical~0 0) .cse0) (and (= ~pumpRunning~0 0) (<= 1 ~methaneLevelCritical~0) .cse0))) [2024-10-12 19:39:51,716 WARN L155 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (and (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= ~methaneLevelCritical~0 0) .cse0) (and (= ~pumpRunning~0 0) (<= 1 ~methaneLevelCritical~0) .cse0))) (= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= ~methaneLevelCritical~0 0) .cse0) (and (= ~pumpRunning~0 0) (<= 1 ~methaneLevelCritical~0) .cse0))) [2024-10-12 19:39:51,722 WARN L155 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__methaneQuery contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= ~methaneLevelCritical~0 0) .cse0) (and (<= 1 ~methaneLevelCritical~0) .cse0 (= |old(~pumpRunning~0)| 0))))) Eliminated clause: (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= ~methaneLevelCritical~0 0) .cse0) (and (= ~pumpRunning~0 0) (<= 1 ~methaneLevelCritical~0) .cse0))) [2024-10-12 19:39:51,729 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 07:39:51 BoogieIcfgContainer [2024-10-12 19:39:51,730 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-12 19:39:51,731 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-12 19:39:51,731 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-12 19:39:51,732 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-12 19:39:51,732 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:39:42" (3/4) ... [2024-10-12 19:39:51,734 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-12 19:39:51,737 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-10-12 19:39:51,737 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-10-12 19:39:51,737 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-10-12 19:39:51,738 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-10-12 19:39:51,738 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-10-12 19:39:51,738 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2024-10-12 19:39:51,738 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-10-12 19:39:51,738 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-10-12 19:39:51,738 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2024-10-12 19:39:51,738 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2024-10-12 19:39:51,746 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2024-10-12 19:39:51,746 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-10-12 19:39:51,746 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-12 19:39:51,747 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-12 19:39:51,747 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-12 19:39:51,845 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-12 19:39:51,845 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-12 19:39:51,845 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-12 19:39:51,846 INFO L158 Benchmark]: Toolchain (without parser) took 10441.05ms. Allocated memory was 153.1MB in the beginning and 253.8MB in the end (delta: 100.7MB). Free memory was 96.3MB in the beginning and 177.8MB in the end (delta: -81.4MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. [2024-10-12 19:39:51,846 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 153.1MB. Free memory is still 114.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 19:39:51,846 INFO L158 Benchmark]: CACSL2BoogieTranslator took 479.08ms. Allocated memory is still 153.1MB. Free memory was 96.3MB in the beginning and 74.9MB in the end (delta: 21.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-12 19:39:51,847 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.55ms. Allocated memory is still 153.1MB. Free memory was 74.9MB in the beginning and 72.6MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 19:39:51,847 INFO L158 Benchmark]: Boogie Preprocessor took 57.32ms. Allocated memory is still 153.1MB. Free memory was 72.6MB in the beginning and 70.1MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-12 19:39:51,847 INFO L158 Benchmark]: RCFGBuilder took 611.17ms. Allocated memory is still 153.1MB. Free memory was 70.1MB in the beginning and 106.6MB in the end (delta: -36.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-12 19:39:51,847 INFO L158 Benchmark]: TraceAbstraction took 9130.41ms. Allocated memory was 153.1MB in the beginning and 253.8MB in the end (delta: 100.7MB). Free memory was 105.9MB in the beginning and 186.2MB in the end (delta: -80.2MB). Peak memory consumption was 137.9MB. Max. memory is 16.1GB. [2024-10-12 19:39:51,848 INFO L158 Benchmark]: Witness Printer took 114.27ms. Allocated memory is still 253.8MB. Free memory was 185.1MB in the beginning and 177.8MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-12 19:39:51,849 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 153.1MB. Free memory is still 114.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 479.08ms. Allocated memory is still 153.1MB. Free memory was 96.3MB in the beginning and 74.9MB in the end (delta: 21.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.55ms. Allocated memory is still 153.1MB. Free memory was 74.9MB in the beginning and 72.6MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.32ms. Allocated memory is still 153.1MB. Free memory was 72.6MB in the beginning and 70.1MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 611.17ms. Allocated memory is still 153.1MB. Free memory was 70.1MB in the beginning and 106.6MB in the end (delta: -36.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 9130.41ms. Allocated memory was 153.1MB in the beginning and 253.8MB in the end (delta: 100.7MB). Free memory was 105.9MB in the beginning and 186.2MB in the end (delta: -80.2MB). Peak memory consumption was 137.9MB. Max. memory is 16.1GB. * Witness Printer took 114.27ms. Allocated memory is still 253.8MB. Free memory was 185.1MB in the beginning and 177.8MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [87] - GenericResultAtLocation [Line: 198]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [198] - GenericResultAtLocation [Line: 207]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [207] - GenericResultAtLocation [Line: 234]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [234] - GenericResultAtLocation [Line: 333]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [333] - GenericResultAtLocation [Line: 575]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [575] - GenericResultAtLocation [Line: 640]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [640] - 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: 203]: 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 11 procedures, 88 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.0s, OverallIterations: 11, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1232 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1188 mSDsluCounter, 3031 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2003 mSDsCounter, 387 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1859 IncrementalHoareTripleChecker+Invalid, 2246 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 387 mSolverCounterUnsat, 1028 mSDtfsCounter, 1859 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 357 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=706occurred in iteration=9, InterpolantAutomatonStates: 75, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 11 MinimizatonAttempts, 22 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 632 NumberOfCodeBlocks, 632 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 619 ConstructedInterpolants, 0 QuantifiedInterpolants, 1214 SizeOfPredicates, 1 NumberOfNonLiveVariables, 545 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 13 InterpolantComputations, 11 PerfectInterpolantSequences, 81/92 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: 247]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 585]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: ((((methaneLevelCritical == 0) && (1 == systemActive)) && (splverifierCounter == 0)) || ((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (splverifierCounter == 0))) - ProcedureContractResult [Line: 473]: Procedure Contract for deactivatePump Derived contract for procedure deactivatePump. Requires: (((1 <= methaneLevelCritical) && (1 == systemActive)) || ((methaneLevelCritical == 0) && (1 == systemActive))) Ensures: ((pumpRunning == 0) && (((1 <= methaneLevelCritical) && (1 == systemActive)) || ((methaneLevelCritical == 0) && (1 == systemActive)))) - ProcedureContractResult [Line: 363]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: (((methaneLevelCritical == 0) && (1 == systemActive)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive))) Ensures: (((methaneLevelCritical == 0) && (1 == systemActive)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive))) - ProcedureContractResult [Line: 122]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Ensures: ((((\old(methaneLevelCritical) != 0) || (0 < methaneLevelCritical)) && ((((pumpRunning == 0) && (1 <= \old(methaneLevelCritical))) && (1 == systemActive)) || ((\old(methaneLevelCritical) == 0) && (1 == systemActive)))) && ((methaneLevelCritical == 0) || (\old(methaneLevelCritical) < 1))) - ProcedureContractResult [Line: 339]: Procedure Contract for timeShift Derived contract for procedure timeShift. Requires: (((1 <= methaneLevelCritical) && (1 == systemActive)) || ((methaneLevelCritical == 0) && (1 == systemActive))) Ensures: ((((((1 < \old(waterLevel)) || (waterLevel < 2)) && (((pumpRunning == \old(pumpRunning)) || (pumpRunning == 0)) || (1 < waterLevel))) && ((pumpRunning == 0) || (methaneLevelCritical < 1))) && (((1 <= methaneLevelCritical) && (1 == systemActive)) || ((methaneLevelCritical == 0) && (1 == systemActive)))) && ((\old(pumpRunning) != 0) || (\old(waterLevel) == waterLevel))) - ProcedureContractResult [Line: 237]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: 0 - ProcedureContractResult [Line: 134]: Procedure Contract for isMethaneLevelCritical Derived contract for procedure isMethaneLevelCritical. Requires: (((1 <= methaneLevelCritical) && (1 == systemActive)) || ((methaneLevelCritical == 0) && (1 == systemActive))) Ensures: ((((1 <= methaneLevelCritical) && (1 == systemActive)) || ((methaneLevelCritical == 0) && (1 == systemActive))) && (\result == methaneLevelCritical)) - ProcedureContractResult [Line: 371]: Procedure Contract for processEnvironment__wrappee__highWaterSensor Derived contract for procedure processEnvironment__wrappee__highWaterSensor. Requires: (((methaneLevelCritical == 0) && (1 == systemActive)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive))) Ensures: (((((methaneLevelCritical == 0) && (1 == systemActive)) || (((1 <= methaneLevelCritical) && (1 == systemActive)) && (\old(pumpRunning) == 0))) && ((pumpRunning == 0) || (methaneLevelCritical < 1))) && ((pumpRunning == \old(pumpRunning)) || (1 < waterLevel))) - ProcedureContractResult [Line: 110]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: (((methaneLevelCritical == 0) && (1 == systemActive)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive))) Ensures: ((((methaneLevelCritical == 0) && (1 == systemActive)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive))) && ((\old(waterLevel) < 2) || (\old(waterLevel) == waterLevel))) - ProcedureContractResult [Line: 397]: Procedure Contract for processEnvironment__wrappee__methaneQuery Derived contract for procedure processEnvironment__wrappee__methaneQuery. Requires: (((methaneLevelCritical == 0) && (1 == systemActive)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive))) Ensures: (((((methaneLevelCritical == 0) && (1 == systemActive)) || (((1 <= methaneLevelCritical) && (1 == systemActive)) && (\old(pumpRunning) == 0))) && (((pumpRunning == \old(pumpRunning)) || (pumpRunning == 0)) || (1 < waterLevel))) && ((pumpRunning == 0) || (methaneLevelCritical < 1))) - ProcedureContractResult [Line: 481]: Procedure Contract for isMethaneAlarm Derived contract for procedure isMethaneAlarm. Requires: (((1 <= methaneLevelCritical) && (1 == systemActive)) || ((methaneLevelCritical == 0) && (1 == systemActive))) Ensures: (((methaneLevelCritical < ((long long) \result + 1)) || (methaneLevelCritical < 1)) && (((1 <= methaneLevelCritical) && (1 == systemActive)) || ((methaneLevelCritical == 0) && (1 == systemActive)))) RESULT: Ultimate proved your program to be correct! [2024-10-12 19:39:51,877 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