./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-25.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-25.i -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 153786ff23d1f4ad1fa22216334d8f153d923a58dff5067a8f60a9c72819150b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 00:33:27,216 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 00:33:27,308 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 00:33:27,314 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 00:33:27,315 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 00:33:27,344 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 00:33:27,345 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 00:33:27,345 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 00:33:27,346 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 00:33:27,347 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 00:33:27,347 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 00:33:27,348 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 00:33:27,348 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 00:33:27,350 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 00:33:27,351 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 00:33:27,351 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 00:33:27,352 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 00:33:27,352 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 00:33:27,352 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 00:33:27,353 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 00:33:27,356 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 00:33:27,357 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 00:33:27,357 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 00:33:27,357 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 00:33:27,357 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 00:33:27,358 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 00:33:27,358 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 00:33:27,358 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 00:33:27,358 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 00:33:27,359 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 00:33:27,359 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 00:33:27,359 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 00:33:27,359 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 00:33:27,359 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 00:33:27,360 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 00:33:27,360 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 00:33:27,362 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 00:33:27,362 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 00:33:27,362 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 00:33:27,363 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 00:33:27,363 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 00:33:27,363 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 00:33:27,364 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 153786ff23d1f4ad1fa22216334d8f153d923a58dff5067a8f60a9c72819150b [2024-11-19 00:33:27,658 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 00:33:27,688 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 00:33:27,692 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 00:33:27,693 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 00:33:27,694 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 00:33:27,695 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-25.i [2024-11-19 00:33:29,287 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 00:33:29,504 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 00:33:29,504 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-25.i [2024-11-19 00:33:29,520 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c715eea7/7c9eea4fcfb3417599ca90d5ac7bc619/FLAG7457aaade [2024-11-19 00:33:29,536 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c715eea7/7c9eea4fcfb3417599ca90d5ac7bc619 [2024-11-19 00:33:29,538 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 00:33:29,540 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 00:33:29,541 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 00:33:29,541 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 00:33:29,549 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 00:33:29,550 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 12:33:29" (1/1) ... [2024-11-19 00:33:29,551 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1376db60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:33:29, skipping insertion in model container [2024-11-19 00:33:29,553 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 12:33:29" (1/1) ... [2024-11-19 00:33:29,579 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 00:33:29,774 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-25.i[916,929] [2024-11-19 00:33:29,865 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 00:33:29,878 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 00:33:29,893 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-25.i[916,929] [2024-11-19 00:33:29,940 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 00:33:29,968 INFO L204 MainTranslator]: Completed translation [2024-11-19 00:33:29,968 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:33:29 WrapperNode [2024-11-19 00:33:29,969 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 00:33:29,970 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 00:33:29,970 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 00:33:29,970 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 00:33:29,978 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:33:29" (1/1) ... [2024-11-19 00:33:29,994 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:33:29" (1/1) ... [2024-11-19 00:33:30,041 INFO L138 Inliner]: procedures = 29, calls = 179, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 558 [2024-11-19 00:33:30,041 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 00:33:30,042 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 00:33:30,042 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 00:33:30,042 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 00:33:30,055 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:33:29" (1/1) ... [2024-11-19 00:33:30,056 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:33:29" (1/1) ... [2024-11-19 00:33:30,061 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:33:29" (1/1) ... [2024-11-19 00:33:30,083 INFO L175 MemorySlicer]: Split 146 memory accesses to 5 slices as follows [2, 33, 56, 35, 20]. 38 percent of accesses are in the largest equivalence class. The 16 initializations are split as follows [2, 4, 4, 4, 2]. The 19 writes are split as follows [0, 6, 6, 5, 2]. [2024-11-19 00:33:30,084 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:33:29" (1/1) ... [2024-11-19 00:33:30,084 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:33:29" (1/1) ... [2024-11-19 00:33:30,119 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:33:29" (1/1) ... [2024-11-19 00:33:30,124 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:33:29" (1/1) ... [2024-11-19 00:33:30,127 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:33:29" (1/1) ... [2024-11-19 00:33:30,131 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:33:29" (1/1) ... [2024-11-19 00:33:30,140 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 00:33:30,141 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 00:33:30,142 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 00:33:30,142 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 00:33:30,143 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:33:29" (1/1) ... [2024-11-19 00:33:30,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 00:33:30,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:33:30,194 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 00:33:30,201 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 00:33:30,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 00:33:30,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 00:33:30,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 00:33:30,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 00:33:30,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-19 00:33:30,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-19 00:33:30,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-19 00:33:30,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-19 00:33:30,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-19 00:33:30,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-19 00:33:30,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-19 00:33:30,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-19 00:33:30,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-19 00:33:30,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-19 00:33:30,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-19 00:33:30,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-19 00:33:30,259 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 00:33:30,259 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 00:33:30,259 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 00:33:30,259 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-19 00:33:30,259 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-19 00:33:30,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-11-19 00:33:30,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-11-19 00:33:30,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-11-19 00:33:30,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-11-19 00:33:30,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-11-19 00:33:30,260 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 00:33:30,260 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 00:33:30,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 00:33:30,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 00:33:30,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 00:33:30,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 00:33:30,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-19 00:33:30,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 00:33:30,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 00:33:30,415 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 00:33:30,417 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 00:33:31,011 INFO L? ?]: Removed 142 outVars from TransFormulas that were not future-live. [2024-11-19 00:33:31,011 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 00:33:31,033 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 00:33:31,034 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 00:33:31,034 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 12:33:31 BoogieIcfgContainer [2024-11-19 00:33:31,034 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 00:33:31,038 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 00:33:31,038 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 00:33:31,042 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 00:33:31,042 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 12:33:29" (1/3) ... [2024-11-19 00:33:31,043 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22a7bf64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 12:33:31, skipping insertion in model container [2024-11-19 00:33:31,043 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:33:29" (2/3) ... [2024-11-19 00:33:31,044 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22a7bf64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 12:33:31, skipping insertion in model container [2024-11-19 00:33:31,044 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 12:33:31" (3/3) ... [2024-11-19 00:33:31,046 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-25.i [2024-11-19 00:33:31,065 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 00:33:31,065 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 00:33:31,133 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 00:33:31,139 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;@d9776b1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 00:33:31,140 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 00:33:31,144 INFO L276 IsEmpty]: Start isEmpty. Operand has 124 states, 103 states have (on average 1.4271844660194175) internal successors, (147), 104 states have internal predecessors, (147), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-19 00:33:31,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-19 00:33:31,156 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:33:31,157 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:33:31,158 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:33:31,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:33:31,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1269082004, now seen corresponding path program 1 times [2024-11-19 00:33:31,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:33:31,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917401366] [2024-11-19 00:33:31,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:33:31,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:33:31,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:33:31,558 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2024-11-19 00:33:31,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:33:31,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917401366] [2024-11-19 00:33:31,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917401366] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:33:31,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1127722539] [2024-11-19 00:33:31,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:33:31,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:33:31,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:33:31,563 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 00:33:31,565 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 00:33:31,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:33:31,833 INFO L255 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-19 00:33:31,843 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:33:31,866 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2024-11-19 00:33:31,867 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 00:33:31,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1127722539] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:33:31,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 00:33:31,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-19 00:33:31,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700502150] [2024-11-19 00:33:31,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:33:31,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 00:33:31,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:33:31,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 00:33:31,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 00:33:31,918 INFO L87 Difference]: Start difference. First operand has 124 states, 103 states have (on average 1.4271844660194175) internal successors, (147), 104 states have internal predecessors, (147), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-19 00:33:31,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:33:31,962 INFO L93 Difference]: Finished difference Result 241 states and 378 transitions. [2024-11-19 00:33:31,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 00:33:31,965 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 144 [2024-11-19 00:33:31,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:33:32,006 INFO L225 Difference]: With dead ends: 241 [2024-11-19 00:33:32,008 INFO L226 Difference]: Without dead ends: 120 [2024-11-19 00:33:32,012 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 00:33:32,017 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:33:32,018 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:33:32,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-19 00:33:32,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2024-11-19 00:33:32,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 100 states have (on average 1.4) internal successors, (140), 100 states have internal predecessors, (140), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-19 00:33:32,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 176 transitions. [2024-11-19 00:33:32,081 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 176 transitions. Word has length 144 [2024-11-19 00:33:32,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:33:32,083 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 176 transitions. [2024-11-19 00:33:32,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-19 00:33:32,083 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 176 transitions. [2024-11-19 00:33:32,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-19 00:33:32,087 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:33:32,087 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:33:32,107 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-19 00:33:32,288 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,SelfDestructingSolverStorable0 [2024-11-19 00:33:32,289 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:33:32,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:33:32,290 INFO L85 PathProgramCache]: Analyzing trace with hash 2080754636, now seen corresponding path program 1 times [2024-11-19 00:33:32,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:33:32,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940964743] [2024-11-19 00:33:32,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:33:32,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:33:32,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:33:33,976 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 00:33:33,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:33:33,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940964743] [2024-11-19 00:33:33,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940964743] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:33:33,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:33:33,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 00:33:33,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927708029] [2024-11-19 00:33:33,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:33:33,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 00:33:33,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:33:33,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 00:33:33,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:33:33,984 INFO L87 Difference]: Start difference. First operand 120 states and 176 transitions. Second operand has 7 states, 6 states have (on average 9.5) internal successors, (57), 7 states have internal predecessors, (57), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-19 00:33:34,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:33:34,254 INFO L93 Difference]: Finished difference Result 323 states and 474 transitions. [2024-11-19 00:33:34,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 00:33:34,255 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.5) internal successors, (57), 7 states have internal predecessors, (57), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 144 [2024-11-19 00:33:34,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:33:34,258 INFO L225 Difference]: With dead ends: 323 [2024-11-19 00:33:34,258 INFO L226 Difference]: Without dead ends: 206 [2024-11-19 00:33:34,262 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-19 00:33:34,263 INFO L432 NwaCegarLoop]: 247 mSDtfsCounter, 112 mSDsluCounter, 1063 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 1310 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 00:33:34,264 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 1310 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 00:33:34,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2024-11-19 00:33:34,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 203. [2024-11-19 00:33:34,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 174 states have (on average 1.4080459770114941) internal successors, (245), 175 states have internal predecessors, (245), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-19 00:33:34,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 297 transitions. [2024-11-19 00:33:34,296 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 297 transitions. Word has length 144 [2024-11-19 00:33:34,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:33:34,297 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 297 transitions. [2024-11-19 00:33:34,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.5) internal successors, (57), 7 states have internal predecessors, (57), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-19 00:33:34,298 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 297 transitions. [2024-11-19 00:33:34,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-19 00:33:34,300 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:33:34,300 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:33:34,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 00:33:34,304 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:33:34,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:33:34,304 INFO L85 PathProgramCache]: Analyzing trace with hash -987335367, now seen corresponding path program 1 times [2024-11-19 00:33:34,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:33:34,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866355439] [2024-11-19 00:33:34,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:33:34,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:33:34,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:33:34,660 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 00:33:34,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:33:34,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866355439] [2024-11-19 00:33:34,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866355439] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:33:34,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:33:34,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 00:33:34,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994239498] [2024-11-19 00:33:34,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:33:34,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:33:34,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:33:34,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:33:34,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:33:34,667 INFO L87 Difference]: Start difference. First operand 203 states and 297 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 00:33:34,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:33:34,906 INFO L93 Difference]: Finished difference Result 436 states and 636 transitions. [2024-11-19 00:33:34,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 00:33:34,907 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 145 [2024-11-19 00:33:34,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:33:34,910 INFO L225 Difference]: With dead ends: 436 [2024-11-19 00:33:34,910 INFO L226 Difference]: Without dead ends: 236 [2024-11-19 00:33:34,911 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:33:34,912 INFO L432 NwaCegarLoop]: 228 mSDtfsCounter, 155 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 772 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 00:33:34,913 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 772 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 00:33:34,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2024-11-19 00:33:34,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 227. [2024-11-19 00:33:34,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 187 states have (on average 1.374331550802139) internal successors, (257), 188 states have internal predecessors, (257), 36 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-19 00:33:34,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 329 transitions. [2024-11-19 00:33:34,932 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 329 transitions. Word has length 145 [2024-11-19 00:33:34,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:33:34,933 INFO L471 AbstractCegarLoop]: Abstraction has 227 states and 329 transitions. [2024-11-19 00:33:34,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 00:33:34,933 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 329 transitions. [2024-11-19 00:33:34,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-19 00:33:34,941 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:33:34,942 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:33:34,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 00:33:34,942 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:33:34,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:33:34,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1380366754, now seen corresponding path program 1 times [2024-11-19 00:33:34,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:33:34,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625866467] [2024-11-19 00:33:34,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:33:34,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:33:34,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:33:35,174 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-19 00:33:35,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:33:35,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625866467] [2024-11-19 00:33:35,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625866467] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:33:35,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [258092994] [2024-11-19 00:33:35,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:33:35,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:33:35,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:33:35,177 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) [2024-11-19 00:33:35,179 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 00:33:35,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:33:35,406 INFO L255 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 00:33:35,414 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:33:35,474 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 00:33:35,474 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 00:33:35,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [258092994] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:33:35,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 00:33:35,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 9 [2024-11-19 00:33:35,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300298881] [2024-11-19 00:33:35,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:33:35,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:33:35,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:33:35,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:33:35,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-19 00:33:35,480 INFO L87 Difference]: Start difference. First operand 227 states and 329 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 00:33:35,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:33:35,531 INFO L93 Difference]: Finished difference Result 457 states and 663 transitions. [2024-11-19 00:33:35,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 00:33:35,532 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 146 [2024-11-19 00:33:35,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:33:35,538 INFO L225 Difference]: With dead ends: 457 [2024-11-19 00:33:35,539 INFO L226 Difference]: Without dead ends: 233 [2024-11-19 00:33:35,541 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-19 00:33:35,542 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 0 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 682 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:33:35,544 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 682 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:33:35,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2024-11-19 00:33:35,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 231. [2024-11-19 00:33:35,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 191 states have (on average 1.3664921465968587) internal successors, (261), 192 states have internal predecessors, (261), 36 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-19 00:33:35,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 333 transitions. [2024-11-19 00:33:35,577 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 333 transitions. Word has length 146 [2024-11-19 00:33:35,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:33:35,580 INFO L471 AbstractCegarLoop]: Abstraction has 231 states and 333 transitions. [2024-11-19 00:33:35,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 00:33:35,581 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 333 transitions. [2024-11-19 00:33:35,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-19 00:33:35,583 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:33:35,584 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:33:35,602 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-19 00:33:35,787 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,SelfDestructingSolverStorable3 [2024-11-19 00:33:35,788 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:33:35,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:33:35,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1268697309, now seen corresponding path program 1 times [2024-11-19 00:33:35,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:33:35,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414748433] [2024-11-19 00:33:35,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:33:35,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:33:35,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:33:36,099 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 00:33:36,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:33:36,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414748433] [2024-11-19 00:33:36,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414748433] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:33:36,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:33:36,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 00:33:36,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640924884] [2024-11-19 00:33:36,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:33:36,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:33:36,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:33:36,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:33:36,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:33:36,106 INFO L87 Difference]: Start difference. First operand 231 states and 333 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 00:33:36,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:33:36,325 INFO L93 Difference]: Finished difference Result 461 states and 665 transitions. [2024-11-19 00:33:36,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 00:33:36,325 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 148 [2024-11-19 00:33:36,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:33:36,330 INFO L225 Difference]: With dead ends: 461 [2024-11-19 00:33:36,330 INFO L226 Difference]: Without dead ends: 233 [2024-11-19 00:33:36,331 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:33:36,331 INFO L432 NwaCegarLoop]: 238 mSDtfsCounter, 138 mSDsluCounter, 571 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 809 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 00:33:36,332 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 809 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 00:33:36,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2024-11-19 00:33:36,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 224. [2024-11-19 00:33:36,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 184 states have (on average 1.358695652173913) internal successors, (250), 185 states have internal predecessors, (250), 36 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-19 00:33:36,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 322 transitions. [2024-11-19 00:33:36,352 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 322 transitions. Word has length 148 [2024-11-19 00:33:36,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:33:36,353 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 322 transitions. [2024-11-19 00:33:36,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 00:33:36,353 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 322 transitions. [2024-11-19 00:33:36,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-19 00:33:36,356 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:33:36,356 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:33:36,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 00:33:36,357 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:33:36,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:33:36,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1035334493, now seen corresponding path program 1 times [2024-11-19 00:33:36,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:33:36,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351619725] [2024-11-19 00:33:36,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:33:36,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:33:36,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:33:37,256 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 6 proven. 45 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-19 00:33:37,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:33:37,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351619725] [2024-11-19 00:33:37,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351619725] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:33:37,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [653192943] [2024-11-19 00:33:37,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:33:37,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:33:37,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:33:37,260 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 00:33:37,261 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 00:33:37,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:33:37,481 INFO L255 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-19 00:33:37,487 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:33:37,572 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2024-11-19 00:33:37,872 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 24 [2024-11-19 00:33:37,975 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 00:33:37,976 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 14 [2024-11-19 00:33:38,019 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 141 proven. 45 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked. [2024-11-19 00:33:38,019 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 00:33:38,390 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 6 proven. 45 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-19 00:33:38,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [653192943] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 00:33:38,390 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 00:33:38,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 16 [2024-11-19 00:33:38,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849635681] [2024-11-19 00:33:38,391 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 00:33:38,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-19 00:33:38,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:33:38,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-19 00:33:38,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2024-11-19 00:33:38,393 INFO L87 Difference]: Start difference. First operand 224 states and 322 transitions. Second operand has 16 states, 12 states have (on average 8.75) internal successors, (105), 16 states have internal predecessors, (105), 7 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (38), 3 states have call predecessors, (38), 7 states have call successors, (38) [2024-11-19 00:33:39,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:33:39,619 INFO L93 Difference]: Finished difference Result 591 states and 838 transitions. [2024-11-19 00:33:39,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-19 00:33:39,620 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 12 states have (on average 8.75) internal successors, (105), 16 states have internal predecessors, (105), 7 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (38), 3 states have call predecessors, (38), 7 states have call successors, (38) Word has length 148 [2024-11-19 00:33:39,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:33:39,623 INFO L225 Difference]: With dead ends: 591 [2024-11-19 00:33:39,623 INFO L226 Difference]: Without dead ends: 370 [2024-11-19 00:33:39,624 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 290 SyntacticMatches, 5 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 344 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=342, Invalid=1218, Unknown=0, NotChecked=0, Total=1560 [2024-11-19 00:33:39,625 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 1094 mSDsluCounter, 670 mSDsCounter, 0 mSdLazyCounter, 878 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1095 SdHoareTripleChecker+Valid, 765 SdHoareTripleChecker+Invalid, 1056 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 878 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 00:33:39,626 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1095 Valid, 765 Invalid, 1056 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 878 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 00:33:39,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2024-11-19 00:33:39,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 351. [2024-11-19 00:33:39,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 288 states have (on average 1.3472222222222223) internal successors, (388), 290 states have internal predecessors, (388), 54 states have call successors, (54), 8 states have call predecessors, (54), 8 states have return successors, (54), 52 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-19 00:33:39,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 496 transitions. [2024-11-19 00:33:39,652 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 496 transitions. Word has length 148 [2024-11-19 00:33:39,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:33:39,652 INFO L471 AbstractCegarLoop]: Abstraction has 351 states and 496 transitions. [2024-11-19 00:33:39,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 12 states have (on average 8.75) internal successors, (105), 16 states have internal predecessors, (105), 7 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (38), 3 states have call predecessors, (38), 7 states have call successors, (38) [2024-11-19 00:33:39,652 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 496 transitions. [2024-11-19 00:33:39,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-19 00:33:39,654 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:33:39,654 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:33:39,673 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-19 00:33:39,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:33:39,855 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:33:39,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:33:39,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1056611824, now seen corresponding path program 1 times [2024-11-19 00:33:39,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:33:39,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826071598] [2024-11-19 00:33:39,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:33:39,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:33:39,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:33:40,232 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 00:33:40,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:33:40,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826071598] [2024-11-19 00:33:40,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826071598] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:33:40,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:33:40,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 00:33:40,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796316355] [2024-11-19 00:33:40,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:33:40,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 00:33:40,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:33:40,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 00:33:40,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:33:40,235 INFO L87 Difference]: Start difference. First operand 351 states and 496 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 00:33:40,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:33:40,384 INFO L93 Difference]: Finished difference Result 901 states and 1273 transitions. [2024-11-19 00:33:40,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 00:33:40,385 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 149 [2024-11-19 00:33:40,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:33:40,388 INFO L225 Difference]: With dead ends: 901 [2024-11-19 00:33:40,388 INFO L226 Difference]: Without dead ends: 553 [2024-11-19 00:33:40,390 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:33:40,391 INFO L432 NwaCegarLoop]: 289 mSDtfsCounter, 145 mSDsluCounter, 709 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 998 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:33:40,391 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 998 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:33:40,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-19 00:33:40,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 549. [2024-11-19 00:33:40,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 453 states have (on average 1.34878587196468) internal successors, (611), 457 states have internal predecessors, (611), 82 states have call successors, (82), 13 states have call predecessors, (82), 13 states have return successors, (82), 78 states have call predecessors, (82), 82 states have call successors, (82) [2024-11-19 00:33:40,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 775 transitions. [2024-11-19 00:33:40,466 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 775 transitions. Word has length 149 [2024-11-19 00:33:40,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:33:40,467 INFO L471 AbstractCegarLoop]: Abstraction has 549 states and 775 transitions. [2024-11-19 00:33:40,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 00:33:40,467 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 775 transitions. [2024-11-19 00:33:40,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-19 00:33:40,469 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:33:40,469 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:33:40,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 00:33:40,474 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:33:40,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:33:40,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1647891765, now seen corresponding path program 1 times [2024-11-19 00:33:40,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:33:40,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244807409] [2024-11-19 00:33:40,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:33:40,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:33:40,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat