./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-pthread/cs_szymanski.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f 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/seq-pthread/cs_szymanski.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 8c5cb1d1ec86f1df708ae47d652aad74925d4eb7bf3fc3a2c37d76896a5071e8 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 21:53:03,317 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 21:53:03,392 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 21:53:03,396 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 21:53:03,397 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 21:53:03,432 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 21:53:03,433 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 21:53:03,433 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 21:53:03,434 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 21:53:03,434 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 21:53:03,435 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 21:53:03,436 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 21:53:03,437 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 21:53:03,438 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 21:53:03,440 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 21:53:03,440 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 21:53:03,441 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 21:53:03,441 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 21:53:03,441 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 21:53:03,441 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 21:53:03,442 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 21:53:03,443 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 21:53:03,444 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 21:53:03,444 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 21:53:03,444 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 21:53:03,444 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 21:53:03,444 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 21:53:03,445 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 21:53:03,445 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 21:53:03,445 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 21:53:03,446 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 21:53:03,446 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 21:53:03,447 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 21:53:03,447 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 21:53:03,447 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 21:53:03,448 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 21:53:03,448 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 21:53:03,448 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 21:53:03,448 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 21:53:03,448 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 21:53:03,448 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 21:53:03,449 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 21:53:03,449 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c5cb1d1ec86f1df708ae47d652aad74925d4eb7bf3fc3a2c37d76896a5071e8 [2024-11-11 21:53:03,708 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 21:53:03,733 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 21:53:03,736 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 21:53:03,738 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 21:53:03,738 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 21:53:03,739 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-pthread/cs_szymanski.i [2024-11-11 21:53:05,193 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 21:53:05,473 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 21:53:05,474 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_szymanski.i [2024-11-11 21:53:05,495 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77ea15de2/df21d7323500477b9b9aeda9ff3c8a78/FLAGc9fceb44f [2024-11-11 21:53:05,509 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77ea15de2/df21d7323500477b9b9aeda9ff3c8a78 [2024-11-11 21:53:05,512 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 21:53:05,513 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 21:53:05,515 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 21:53:05,515 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 21:53:05,521 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 21:53:05,522 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 09:53:05" (1/1) ... [2024-11-11 21:53:05,522 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@565e26a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:53:05, skipping insertion in model container [2024-11-11 21:53:05,523 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 09:53:05" (1/1) ... [2024-11-11 21:53:05,573 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 21:53:05,884 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/seq-pthread/cs_szymanski.i[23606,23619] [2024-11-11 21:53:06,012 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 21:53:06,033 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 21:53:06,071 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/seq-pthread/cs_szymanski.i[23606,23619] [2024-11-11 21:53:06,137 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 21:53:06,178 INFO L204 MainTranslator]: Completed translation [2024-11-11 21:53:06,179 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:53:06 WrapperNode [2024-11-11 21:53:06,179 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 21:53:06,180 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 21:53:06,180 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 21:53:06,180 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 21:53:06,187 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:53:06" (1/1) ... [2024-11-11 21:53:06,213 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:53:06" (1/1) ... [2024-11-11 21:53:06,259 INFO L138 Inliner]: procedures = 145, calls = 298, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 409 [2024-11-11 21:53:06,259 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 21:53:06,260 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 21:53:06,261 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 21:53:06,261 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 21:53:06,272 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:53:06" (1/1) ... [2024-11-11 21:53:06,273 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:53:06" (1/1) ... [2024-11-11 21:53:06,284 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:53:06" (1/1) ... [2024-11-11 21:53:06,321 INFO L175 MemorySlicer]: Split 144 memory accesses to 16 slices as follows [2, 8, 8, 8, 29, 21, 7, 7, 5, 7, 13, 5, 0, 13, 6, 5]. 20 percent of accesses are in the largest equivalence class. The 40 initializations are split as follows [2, 3, 3, 3, 9, 9, 3, 3, 0, 3, 0, 0, 0, 0, 2, 0]. The 36 writes are split as follows [0, 2, 2, 2, 11, 6, 2, 2, 1, 2, 1, 1, 0, 1, 2, 1]. [2024-11-11 21:53:06,322 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:53:06" (1/1) ... [2024-11-11 21:53:06,322 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:53:06" (1/1) ... [2024-11-11 21:53:06,352 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:53:06" (1/1) ... [2024-11-11 21:53:06,364 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:53:06" (1/1) ... [2024-11-11 21:53:06,370 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:53:06" (1/1) ... [2024-11-11 21:53:06,375 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:53:06" (1/1) ... [2024-11-11 21:53:06,384 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 21:53:06,386 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 21:53:06,386 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 21:53:06,386 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 21:53:06,387 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:53:06" (1/1) ... [2024-11-11 21:53:06,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 21:53:06,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 21:53:06,433 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) [2024-11-11 21:53:06,461 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 [2024-11-11 21:53:06,582 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-11 21:53:06,582 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-11 21:53:06,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-11 21:53:06,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-11 21:53:06,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-11 21:53:06,586 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-11 21:53:06,586 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-11 21:53:06,586 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-11 21:53:06,586 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-11 21:53:06,586 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-11 21:53:06,586 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-11 21:53:06,586 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-11 21:53:06,586 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-11 21:53:06,586 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-11 21:53:06,586 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-11-11 21:53:06,587 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-11-11 21:53:06,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-11 21:53:06,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-11 21:53:06,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-11 21:53:06,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-11 21:53:06,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-11 21:53:06,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-11 21:53:06,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-11 21:53:06,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-11 21:53:06,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-11 21:53:06,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-11 21:53:06,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-11 21:53:06,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-11 21:53:06,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-11 21:53:06,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-11 21:53:06,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-11-11 21:53:06,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-11-11 21:53:06,588 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-11 21:53:06,588 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-11 21:53:06,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 21:53:06,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-11 21:53:06,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-11 21:53:06,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-11 21:53:06,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-11 21:53:06,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-11 21:53:06,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-11 21:53:06,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-11 21:53:06,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-11 21:53:06,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-11 21:53:06,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-11 21:53:06,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-11 21:53:06,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-11-11 21:53:06,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-11-11 21:53:06,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-11-11 21:53:06,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-11-11 21:53:06,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2024-11-11 21:53:06,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2024-11-11 21:53:06,593 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2024-11-11 21:53:06,593 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2024-11-11 21:53:06,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-11 21:53:06,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-11 21:53:06,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-11 21:53:06,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-11 21:53:06,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-11 21:53:06,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-11 21:53:06,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-11 21:53:06,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-11 21:53:06,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-11 21:53:06,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-11 21:53:06,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-11 21:53:06,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-11-11 21:53:06,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-11-11 21:53:06,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-11-11 21:53:06,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2024-11-11 21:53:06,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2024-11-11 21:53:06,597 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2024-11-11 21:53:06,597 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2024-11-11 21:53:06,597 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2024-11-11 21:53:06,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2024-11-11 21:53:06,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-11 21:53:06,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-11 21:53:06,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-11 21:53:06,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-11 21:53:06,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-11 21:53:06,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-11 21:53:06,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-11 21:53:06,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-11 21:53:06,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-11 21:53:06,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-11 21:53:06,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-11 21:53:06,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-11-11 21:53:06,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-11-11 21:53:06,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-11-11 21:53:06,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2024-11-11 21:53:06,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2024-11-11 21:53:06,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2024-11-11 21:53:06,601 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2024-11-11 21:53:06,602 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2024-11-11 21:53:06,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 21:53:06,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-11 21:53:06,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-11 21:53:06,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-11 21:53:06,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-11 21:53:06,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-11 21:53:06,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-11 21:53:06,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-11 21:53:06,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-11 21:53:06,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-11 21:53:06,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-11 21:53:06,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-11 21:53:06,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-11 21:53:06,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-11 21:53:06,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-11 21:53:06,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-11 21:53:06,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 21:53:06,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 21:53:06,866 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 21:53:06,869 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 21:53:11,526 INFO L? ?]: Removed 51 outVars from TransFormulas that were not future-live. [2024-11-11 21:53:11,527 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 21:53:11,546 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 21:53:11,546 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-11 21:53:11,546 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 09:53:11 BoogieIcfgContainer [2024-11-11 21:53:11,546 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 21:53:11,548 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 21:53:11,548 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 21:53:11,551 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 21:53:11,551 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 09:53:05" (1/3) ... [2024-11-11 21:53:11,552 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4415f4ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 09:53:11, skipping insertion in model container [2024-11-11 21:53:11,552 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:53:06" (2/3) ... [2024-11-11 21:53:11,552 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4415f4ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 09:53:11, skipping insertion in model container [2024-11-11 21:53:11,552 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 09:53:11" (3/3) ... [2024-11-11 21:53:11,553 INFO L112 eAbstractionObserver]: Analyzing ICFG cs_szymanski.i [2024-11-11 21:53:11,567 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 21:53:11,568 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-11 21:53:11,627 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 21:53:11,633 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;@4e491242, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 21:53:11,633 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-11 21:53:11,638 INFO L276 IsEmpty]: Start isEmpty. Operand has 109 states, 70 states have (on average 1.3285714285714285) internal successors, (93), 71 states have internal predecessors, (93), 32 states have call successors, (32), 5 states have call predecessors, (32), 5 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-11 21:53:11,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-11 21:53:11,652 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:53:11,653 INFO L218 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] [2024-11-11 21:53:11,653 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:53:11,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:53:11,660 INFO L85 PathProgramCache]: Analyzing trace with hash -290678459, now seen corresponding path program 1 times [2024-11-11 21:53:11,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:53:11,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855606153] [2024-11-11 21:53:11,671 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:53:11,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:53:12,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:12,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 21:53:12,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:12,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-11 21:53:12,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:12,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 21:53:12,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:12,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-11 21:53:12,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:12,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-11 21:53:12,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:12,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 21:53:12,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:12,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-11 21:53:12,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:12,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-11 21:53:12,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:12,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-11 21:53:12,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:12,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-11 21:53:12,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:12,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-11 21:53:12,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:12,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 21:53:12,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:12,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-11 21:53:12,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:12,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-11 21:53:12,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:12,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-11 21:53:12,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:12,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-11 21:53:12,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:12,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-11 21:53:12,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:12,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-11 21:53:12,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:12,533 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-11 21:53:12,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:53:12,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855606153] [2024-11-11 21:53:12,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855606153] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:53:12,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:53:12,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 21:53:12,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393936272] [2024-11-11 21:53:12,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:53:12,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 21:53:12,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:53:12,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 21:53:12,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:53:12,579 INFO L87 Difference]: Start difference. First operand has 109 states, 70 states have (on average 1.3285714285714285) internal successors, (93), 71 states have internal predecessors, (93), 32 states have call successors, (32), 5 states have call predecessors, (32), 5 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2024-11-11 21:53:12,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:53:12,680 INFO L93 Difference]: Finished difference Result 220 states and 350 transitions. [2024-11-11 21:53:12,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 21:53:12,683 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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 120 [2024-11-11 21:53:12,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:53:12,695 INFO L225 Difference]: With dead ends: 220 [2024-11-11 21:53:12,695 INFO L226 Difference]: Without dead ends: 109 [2024-11-11 21:53:12,702 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:53:12,708 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 4 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:53:12,711 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 297 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:53:12,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-11 21:53:12,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 106. [2024-11-11 21:53:12,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 68 states have (on average 1.2647058823529411) internal successors, (86), 68 states have internal predecessors, (86), 32 states have call successors, (32), 5 states have call predecessors, (32), 5 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-11 21:53:12,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 150 transitions. [2024-11-11 21:53:12,786 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 150 transitions. Word has length 120 [2024-11-11 21:53:12,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:53:12,786 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 150 transitions. [2024-11-11 21:53:12,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2024-11-11 21:53:12,787 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 150 transitions. [2024-11-11 21:53:12,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-11 21:53:12,792 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:53:12,793 INFO L218 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] [2024-11-11 21:53:12,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-11 21:53:12,793 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:53:12,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:53:12,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1184921249, now seen corresponding path program 1 times [2024-11-11 21:53:12,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:53:12,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410640877] [2024-11-11 21:53:12,794 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:53:12,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:53:12,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:13,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-11 21:53:13,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:13,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-11 21:53:13,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:13,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 21:53:13,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:13,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-11 21:53:13,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:13,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-11 21:53:13,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:13,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-11 21:53:13,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:13,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-11 21:53:13,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:13,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-11 21:53:13,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:13,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-11 21:53:13,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:13,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-11 21:53:13,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:13,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-11 21:53:13,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:13,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-11 21:53:13,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:13,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-11 21:53:13,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:13,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-11 21:53:13,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:13,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-11 21:53:13,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:13,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-11 21:53:13,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:13,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-11 21:53:13,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:13,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-11 21:53:13,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:13,240 INFO L134 CoverageAnalysis]: Checked inductivity of 613 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-11 21:53:13,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:53:13,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410640877] [2024-11-11 21:53:13,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410640877] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:53:13,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:53:13,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 21:53:13,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678256367] [2024-11-11 21:53:13,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:53:13,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 21:53:13,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:53:13,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 21:53:13,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:53:13,247 INFO L87 Difference]: Start difference. First operand 106 states and 150 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2024-11-11 21:53:13,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:53:13,302 INFO L93 Difference]: Finished difference Result 211 states and 300 transitions. [2024-11-11 21:53:13,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 21:53:13,303 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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 123 [2024-11-11 21:53:13,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:53:13,306 INFO L225 Difference]: With dead ends: 211 [2024-11-11 21:53:13,306 INFO L226 Difference]: Without dead ends: 108 [2024-11-11 21:53:13,310 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:53:13,313 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 1 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:53:13,314 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 291 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:53:13,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-11-11 21:53:13,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 107. [2024-11-11 21:53:13,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 69 states have (on average 1.2608695652173914) internal successors, (87), 69 states have internal predecessors, (87), 32 states have call successors, (32), 5 states have call predecessors, (32), 5 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-11 21:53:13,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 151 transitions. [2024-11-11 21:53:13,331 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 151 transitions. Word has length 123 [2024-11-11 21:53:13,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:53:13,331 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 151 transitions. [2024-11-11 21:53:13,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2024-11-11 21:53:13,332 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 151 transitions. [2024-11-11 21:53:13,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-11 21:53:13,334 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:53:13,334 INFO L218 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] [2024-11-11 21:53:13,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-11 21:53:13,335 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:53:13,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:53:13,336 INFO L85 PathProgramCache]: Analyzing trace with hash -722006623, now seen corresponding path program 1 times [2024-11-11 21:53:13,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:53:13,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673875021] [2024-11-11 21:53:13,337 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:53:13,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:53:13,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:13,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-11 21:53:13,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:13,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-11 21:53:13,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:13,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-11 21:53:13,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:13,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-11 21:53:13,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:13,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 21:53:13,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:13,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-11 21:53:13,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:13,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 21:53:13,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:13,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-11 21:53:13,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:13,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-11 21:53:13,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:13,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-11 21:53:13,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:13,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 21:53:13,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:13,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-11 21:53:13,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:13,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 21:53:13,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:13,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-11 21:53:13,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:13,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-11 21:53:13,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:13,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-11 21:53:13,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:13,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-11 21:53:13,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:13,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-11 21:53:13,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:13,780 INFO L134 CoverageAnalysis]: Checked inductivity of 614 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-11 21:53:13,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:53:13,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673875021] [2024-11-11 21:53:13,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673875021] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 21:53:13,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [754463541] [2024-11-11 21:53:13,782 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:53:13,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 21:53:13,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 21:53:13,785 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) [2024-11-11 21:53:13,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-11 21:53:14,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:14,295 INFO L256 TraceCheckSpWp]: Trace formula consists of 852 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-11 21:53:14,305 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 21:53:14,360 INFO L134 CoverageAnalysis]: Checked inductivity of 614 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-11 21:53:14,360 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 21:53:14,520 INFO L134 CoverageAnalysis]: Checked inductivity of 614 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-11 21:53:14,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [754463541] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-11 21:53:14,521 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-11 21:53:14,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2024-11-11 21:53:14,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863809229] [2024-11-11 21:53:14,521 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-11 21:53:14,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 21:53:14,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:53:14,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 21:53:14,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-11 21:53:14,529 INFO L87 Difference]: Start difference. First operand 107 states and 151 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2024-11-11 21:53:14,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:53:14,593 INFO L93 Difference]: Finished difference Result 215 states and 305 transitions. [2024-11-11 21:53:14,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 21:53:14,594 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) Word has length 125 [2024-11-11 21:53:14,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:53:14,596 INFO L225 Difference]: With dead ends: 215 [2024-11-11 21:53:14,596 INFO L226 Difference]: Without dead ends: 111 [2024-11-11 21:53:14,597 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 283 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-11 21:53:14,598 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 1 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:53:14,598 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 579 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:53:14,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-11 21:53:14,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2024-11-11 21:53:14,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 73 states have (on average 1.2465753424657535) internal successors, (91), 73 states have internal predecessors, (91), 32 states have call successors, (32), 5 states have call predecessors, (32), 5 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-11 21:53:14,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 155 transitions. [2024-11-11 21:53:14,614 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 155 transitions. Word has length 125 [2024-11-11 21:53:14,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:53:14,615 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 155 transitions. [2024-11-11 21:53:14,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2024-11-11 21:53:14,615 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 155 transitions. [2024-11-11 21:53:14,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-11 21:53:14,620 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:53:14,620 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:53:14,642 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-11 21:53:14,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 21:53:14,825 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:53:14,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:53:14,826 INFO L85 PathProgramCache]: Analyzing trace with hash 680926373, now seen corresponding path program 2 times [2024-11-11 21:53:14,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:53:14,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828995463] [2024-11-11 21:53:14,826 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:53:14,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:53:14,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:15,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-11 21:53:15,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:15,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 21:53:15,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:15,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-11 21:53:15,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:15,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-11 21:53:15,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:15,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-11 21:53:15,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:15,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-11 21:53:15,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:15,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-11 21:53:15,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:15,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-11 21:53:15,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:15,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-11 21:53:15,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:15,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-11 21:53:15,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:15,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-11 21:53:15,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:15,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-11 21:53:15,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:15,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-11 21:53:15,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:15,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-11 21:53:15,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:15,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-11 21:53:15,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:15,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-11 21:53:15,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:15,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-11 21:53:15,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:15,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-11 21:53:15,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:15,167 INFO L134 CoverageAnalysis]: Checked inductivity of 622 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 621 trivial. 0 not checked. [2024-11-11 21:53:15,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:53:15,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828995463] [2024-11-11 21:53:15,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828995463] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 21:53:15,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1004033283] [2024-11-11 21:53:15,170 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-11 21:53:15,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 21:53:15,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 21:53:15,182 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) [2024-11-11 21:53:15,184 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-11 21:53:15,572 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-11 21:53:15,572 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-11 21:53:15,577 INFO L256 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-11 21:53:15,585 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 21:53:15,801 INFO L134 CoverageAnalysis]: Checked inductivity of 622 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 622 trivial. 0 not checked. [2024-11-11 21:53:15,801 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 21:53:15,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1004033283] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:53:15,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 21:53:15,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-11 21:53:15,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41206636] [2024-11-11 21:53:15,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:53:15,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 21:53:15,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:53:15,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 21:53:15,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-11 21:53:15,803 INFO L87 Difference]: Start difference. First operand 111 states and 155 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 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) [2024-11-11 21:53:15,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:53:15,838 INFO L93 Difference]: Finished difference Result 207 states and 296 transitions. [2024-11-11 21:53:15,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 21:53:15,839 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 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 129 [2024-11-11 21:53:15,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:53:15,847 INFO L225 Difference]: With dead ends: 207 [2024-11-11 21:53:15,847 INFO L226 Difference]: Without dead ends: 165 [2024-11-11 21:53:15,848 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:53:15,849 INFO L435 NwaCegarLoop]: 163 mSDtfsCounter, 74 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:53:15,849 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 460 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:53:15,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2024-11-11 21:53:15,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2024-11-11 21:53:15,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 109 states have (on average 1.2844036697247707) internal successors, (140), 109 states have internal predecessors, (140), 45 states have call successors, (45), 10 states have call predecessors, (45), 10 states have return successors, (49), 45 states have call predecessors, (49), 45 states have call successors, (49) [2024-11-11 21:53:15,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 234 transitions. [2024-11-11 21:53:15,870 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 234 transitions. Word has length 129 [2024-11-11 21:53:15,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:53:15,870 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 234 transitions. [2024-11-11 21:53:15,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 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) [2024-11-11 21:53:15,871 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 234 transitions. [2024-11-11 21:53:15,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-11-11 21:53:15,882 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:53:15,882 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 4, 4, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:53:15,901 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-11 21:53:16,082 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 [2024-11-11 21:53:16,083 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:53:16,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:53:16,084 INFO L85 PathProgramCache]: Analyzing trace with hash 42003111, now seen corresponding path program 1 times [2024-11-11 21:53:16,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:53:16,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422479497] [2024-11-11 21:53:16,084 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:53:16,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:53:16,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:16,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 21:53:16,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:16,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 21:53:16,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:16,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 21:53:16,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:16,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 21:53:16,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:16,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 21:53:16,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:16,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 21:53:16,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:16,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-11 21:53:16,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:16,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-11 21:53:16,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:16,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 21:53:16,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:16,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-11 21:53:16,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:16,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-11 21:53:16,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:16,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 21:53:16,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:16,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-11 21:53:16,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:16,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-11 21:53:16,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:16,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-11 21:53:16,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:16,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-11 21:53:16,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:16,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-11 21:53:16,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:16,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-11 21:53:16,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:16,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-11 21:53:16,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:16,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-11 21:53:16,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:16,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-11 21:53:16,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:16,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-11 21:53:16,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:16,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-11 21:53:16,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:16,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-11 21:53:16,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:16,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-11 21:53:16,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:16,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-11-11 21:53:16,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:16,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-11 21:53:16,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:16,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-11 21:53:16,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:16,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-11-11 21:53:16,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:16,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-11-11 21:53:16,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:16,696 INFO L134 CoverageAnalysis]: Checked inductivity of 968 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 967 trivial. 0 not checked. [2024-11-11 21:53:16,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:53:16,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422479497] [2024-11-11 21:53:16,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422479497] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 21:53:16,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1241200071] [2024-11-11 21:53:16,701 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:53:16,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 21:53:16,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 21:53:16,706 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) [2024-11-11 21:53:16,710 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-11 21:53:17,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:17,272 INFO L256 TraceCheckSpWp]: Trace formula consists of 1360 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-11 21:53:17,282 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 21:53:17,333 INFO L134 CoverageAnalysis]: Checked inductivity of 968 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 967 trivial. 0 not checked. [2024-11-11 21:53:17,333 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 21:53:17,571 INFO L134 CoverageAnalysis]: Checked inductivity of 968 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 967 trivial. 0 not checked. [2024-11-11 21:53:17,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1241200071] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-11 21:53:17,571 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-11 21:53:17,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 10 [2024-11-11 21:53:17,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094497415] [2024-11-11 21:53:17,571 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-11 21:53:17,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-11 21:53:17,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:53:17,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-11 21:53:17,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-11 21:53:17,576 INFO L87 Difference]: Start difference. First operand 165 states and 234 transitions. Second operand has 10 states, 10 states have (on average 9.8) internal successors, (98), 6 states have internal predecessors, (98), 2 states have call successors, (62), 6 states have call predecessors, (62), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2024-11-11 21:53:21,642 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-11 21:53:22,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:53:22,456 INFO L93 Difference]: Finished difference Result 346 states and 490 transitions. [2024-11-11 21:53:22,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 21:53:22,457 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.8) internal successors, (98), 6 states have internal predecessors, (98), 2 states have call successors, (62), 6 states have call predecessors, (62), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) Word has length 198 [2024-11-11 21:53:22,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:53:22,459 INFO L225 Difference]: With dead ends: 346 [2024-11-11 21:53:22,459 INFO L226 Difference]: Without dead ends: 193 [2024-11-11 21:53:22,460 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 461 GetRequests, 450 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-11 21:53:22,461 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 62 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 97 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-11 21:53:22,461 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 350 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 274 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2024-11-11 21:53:22,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2024-11-11 21:53:22,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 188. [2024-11-11 21:53:22,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 130 states have (on average 1.2538461538461538) internal successors, (163), 132 states have internal predecessors, (163), 45 states have call successors, (45), 10 states have call predecessors, (45), 12 states have return successors, (53), 45 states have call predecessors, (53), 45 states have call successors, (53) [2024-11-11 21:53:22,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 261 transitions. [2024-11-11 21:53:22,500 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 261 transitions. Word has length 198 [2024-11-11 21:53:22,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:53:22,501 INFO L471 AbstractCegarLoop]: Abstraction has 188 states and 261 transitions. [2024-11-11 21:53:22,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.8) internal successors, (98), 6 states have internal predecessors, (98), 2 states have call successors, (62), 6 states have call predecessors, (62), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2024-11-11 21:53:22,501 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 261 transitions. [2024-11-11 21:53:22,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-11 21:53:22,504 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:53:22,504 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 9, 9, 4, 4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:53:22,529 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-11 21:53:22,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 21:53:22,705 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:53:22,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:53:22,706 INFO L85 PathProgramCache]: Analyzing trace with hash -655474905, now seen corresponding path program 2 times [2024-11-11 21:53:22,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:53:22,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448219751] [2024-11-11 21:53:22,706 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:53:22,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:53:22,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:23,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-11 21:53:23,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:23,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 21:53:23,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:23,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 21:53:23,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:23,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 21:53:23,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:23,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 21:53:23,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:23,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 21:53:23,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:23,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-11 21:53:23,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:23,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-11 21:53:23,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:23,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 21:53:23,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:23,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-11 21:53:23,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:23,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-11 21:53:23,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:23,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 21:53:23,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:23,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-11 21:53:23,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:23,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-11 21:53:23,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:23,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-11 21:53:23,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:23,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-11 21:53:23,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:23,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-11 21:53:23,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:23,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-11 21:53:23,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:23,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-11 21:53:23,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:23,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-11 21:53:23,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:23,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-11 21:53:23,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:23,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-11 21:53:23,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:23,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-11-11 21:53:23,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:23,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-11 21:53:23,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:23,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-11 21:53:23,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:23,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-11-11 21:53:23,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:23,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-11-11 21:53:23,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:23,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-11-11 21:53:23,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:23,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-11-11 21:53:23,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:23,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2024-11-11 21:53:23,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:23,832 INFO L134 CoverageAnalysis]: Checked inductivity of 1069 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1069 trivial. 0 not checked. [2024-11-11 21:53:23,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:53:23,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448219751] [2024-11-11 21:53:23,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448219751] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:53:23,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:53:23,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-11 21:53:23,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563491630] [2024-11-11 21:53:23,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:53:23,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-11 21:53:23,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:53:23,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-11 21:53:23,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-11 21:53:23,839 INFO L87 Difference]: Start difference. First operand 188 states and 261 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (27), 5 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-11 21:53:26,035 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-11 21:53:30,053 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-11 21:53:34,060 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-11 21:53:38,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-11 21:53:42,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-11 21:53:46,090 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-11 21:53:47,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:53:47,368 INFO L93 Difference]: Finished difference Result 486 states and 688 transitions. [2024-11-11 21:53:47,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-11 21:53:47,369 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (27), 5 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 216 [2024-11-11 21:53:47,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:53:47,372 INFO L225 Difference]: With dead ends: 486 [2024-11-11 21:53:47,372 INFO L226 Difference]: Without dead ends: 345 [2024-11-11 21:53:47,374 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2024-11-11 21:53:47,375 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 204 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 160 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:53:47,375 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 603 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 535 Invalid, 5 Unknown, 0 Unchecked, 23.1s Time] [2024-11-11 21:53:47,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2024-11-11 21:53:47,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 334. [2024-11-11 21:53:47,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 221 states have (on average 1.257918552036199) internal successors, (278), 226 states have internal predecessors, (278), 87 states have call successors, (87), 20 states have call predecessors, (87), 25 states have return successors, (110), 87 states have call predecessors, (110), 87 states have call successors, (110) [2024-11-11 21:53:47,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 475 transitions. [2024-11-11 21:53:47,443 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 475 transitions. Word has length 216 [2024-11-11 21:53:47,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:53:47,444 INFO L471 AbstractCegarLoop]: Abstraction has 334 states and 475 transitions. [2024-11-11 21:53:47,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (27), 5 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-11 21:53:47,444 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 475 transitions. [2024-11-11 21:53:47,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-11 21:53:47,448 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:53:47,448 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 9, 9, 4, 4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:53:47,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-11 21:53:47,449 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:53:47,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:53:47,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1953620305, now seen corresponding path program 1 times [2024-11-11 21:53:47,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:53:47,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892625967] [2024-11-11 21:53:47,450 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:53:47,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:53:47,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:48,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-11 21:53:48,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:48,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 21:53:48,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:48,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 21:53:48,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:48,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 21:53:48,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:48,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 21:53:48,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:48,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 21:53:48,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:48,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-11 21:53:48,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:48,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-11 21:53:48,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:48,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 21:53:48,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:48,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-11 21:53:48,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:48,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-11 21:53:48,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:48,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 21:53:48,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:48,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-11 21:53:48,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:48,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-11 21:53:48,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:48,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-11 21:53:48,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:48,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-11 21:53:48,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:48,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-11 21:53:48,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:48,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-11 21:53:48,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:48,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-11 21:53:48,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:48,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-11 21:53:48,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:48,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-11 21:53:48,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:48,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-11 21:53:48,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:48,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-11-11 21:53:48,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:48,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-11 21:53:48,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:48,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-11 21:53:48,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:48,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-11-11 21:53:48,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:48,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-11-11 21:53:48,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:48,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-11-11 21:53:48,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:48,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-11-11 21:53:48,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:48,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2024-11-11 21:53:48,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:48,535 INFO L134 CoverageAnalysis]: Checked inductivity of 1069 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1069 trivial. 0 not checked. [2024-11-11 21:53:48,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:53:48,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892625967] [2024-11-11 21:53:48,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892625967] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:53:48,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:53:48,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-11 21:53:48,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226746955] [2024-11-11 21:53:48,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:53:48,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-11 21:53:48,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:53:48,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-11 21:53:48,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-11 21:53:48,538 INFO L87 Difference]: Start difference. First operand 334 states and 475 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (27), 5 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-11 21:53:52,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-11 21:53:56,790 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-11 21:54:00,802 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-11 21:54:04,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-11 21:54:08,824 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-11 21:54:10,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:54:10,060 INFO L93 Difference]: Finished difference Result 605 states and 849 transitions. [2024-11-11 21:54:10,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-11 21:54:10,060 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (27), 5 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 216 [2024-11-11 21:54:10,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:54:10,063 INFO L225 Difference]: With dead ends: 605 [2024-11-11 21:54:10,063 INFO L226 Difference]: Without dead ends: 309 [2024-11-11 21:54:10,064 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2024-11-11 21:54:10,065 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 164 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 85 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 610 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:54:10,065 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 610 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 542 Invalid, 5 Unknown, 0 Unchecked, 21.1s Time] [2024-11-11 21:54:10,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2024-11-11 21:54:10,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 301. [2024-11-11 21:54:10,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 200 states have (on average 1.22) internal successors, (244), 204 states have internal predecessors, (244), 78 states have call successors, (78), 18 states have call predecessors, (78), 22 states have return successors, (92), 78 states have call predecessors, (92), 78 states have call successors, (92) [2024-11-11 21:54:10,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 414 transitions. [2024-11-11 21:54:10,100 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 414 transitions. Word has length 216 [2024-11-11 21:54:10,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:54:10,100 INFO L471 AbstractCegarLoop]: Abstraction has 301 states and 414 transitions. [2024-11-11 21:54:10,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (27), 5 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-11 21:54:10,101 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 414 transitions. [2024-11-11 21:54:10,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-11 21:54:10,104 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:54:10,104 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 9, 9, 4, 4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:54:10,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-11 21:54:10,104 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:54:10,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:54:10,105 INFO L85 PathProgramCache]: Analyzing trace with hash 830969787, now seen corresponding path program 1 times [2024-11-11 21:54:10,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:54:10,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634029422] [2024-11-11 21:54:10,105 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:54:10,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:54:10,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:10,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 21:54:10,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:10,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 21:54:10,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:10,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 21:54:10,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:10,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 21:54:11,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:11,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 21:54:11,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:11,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 21:54:11,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:11,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-11 21:54:11,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:11,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-11 21:54:11,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:11,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 21:54:11,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:11,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-11 21:54:11,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:11,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-11 21:54:11,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:11,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 21:54:11,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:11,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-11 21:54:11,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:11,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-11 21:54:11,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:11,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-11 21:54:11,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:11,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-11 21:54:11,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:11,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-11 21:54:11,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:11,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-11 21:54:11,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:11,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-11 21:54:11,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:11,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-11 21:54:11,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:11,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-11 21:54:11,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:11,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-11 21:54:11,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:11,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-11-11 21:54:11,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:11,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-11 21:54:11,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:11,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-11 21:54:11,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:11,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-11-11 21:54:11,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:11,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-11-11 21:54:11,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:11,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-11-11 21:54:11,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:11,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-11-11 21:54:11,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:11,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2024-11-11 21:54:11,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:11,302 INFO L134 CoverageAnalysis]: Checked inductivity of 1069 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1066 trivial. 0 not checked. [2024-11-11 21:54:11,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:54:11,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634029422] [2024-11-11 21:54:11,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634029422] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 21:54:11,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1384237515] [2024-11-11 21:54:11,306 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:54:11,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 21:54:11,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 21:54:11,310 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 21:54:11,320 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-11 21:54:11,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:11,973 INFO L256 TraceCheckSpWp]: Trace formula consists of 1618 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-11 21:54:11,980 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 21:54:12,126 INFO L134 CoverageAnalysis]: Checked inductivity of 1069 backedges. 288 proven. 4 refuted. 0 times theorem prover too weak. 777 trivial. 0 not checked. [2024-11-11 21:54:12,126 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 21:54:12,526 INFO L134 CoverageAnalysis]: Checked inductivity of 1069 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1065 trivial. 0 not checked. [2024-11-11 21:54:12,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1384237515] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-11 21:54:12,527 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-11 21:54:12,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 6, 5] total 16 [2024-11-11 21:54:12,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856361993] [2024-11-11 21:54:12,527 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-11 21:54:12,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-11 21:54:12,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:54:12,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-11 21:54:12,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2024-11-11 21:54:12,529 INFO L87 Difference]: Start difference. First operand 301 states and 414 transitions. Second operand has 16 states, 16 states have (on average 5.5625) internal successors, (89), 12 states have internal predecessors, (89), 9 states have call successors, (56), 8 states have call predecessors, (56), 7 states have return successors, (55), 7 states have call predecessors, (55), 9 states have call successors, (55) [2024-11-11 21:54:16,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-11 21:54:18,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-11 21:54:22,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-11 21:54:23,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:54:23,909 INFO L93 Difference]: Finished difference Result 593 states and 837 transitions. [2024-11-11 21:54:23,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-11 21:54:23,910 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.5625) internal successors, (89), 12 states have internal predecessors, (89), 9 states have call successors, (56), 8 states have call predecessors, (56), 7 states have return successors, (55), 7 states have call predecessors, (55), 9 states have call successors, (55) Word has length 216 [2024-11-11 21:54:23,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:54:23,913 INFO L225 Difference]: With dead ends: 593 [2024-11-11 21:54:23,913 INFO L226 Difference]: Without dead ends: 329 [2024-11-11 21:54:23,916 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 517 GetRequests, 491 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=203, Invalid=553, Unknown=0, NotChecked=0, Total=756 [2024-11-11 21:54:23,918 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 267 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 211 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 657 SdHoareTripleChecker+Invalid, 856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 211 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2024-11-11 21:54:23,918 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 657 Invalid, 856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [211 Valid, 643 Invalid, 2 Unknown, 0 Unchecked, 10.7s Time] [2024-11-11 21:54:23,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2024-11-11 21:54:23,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 322. [2024-11-11 21:54:23,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 218 states have (on average 1.2431192660550459) internal successors, (271), 222 states have internal predecessors, (271), 73 states have call successors, (73), 26 states have call predecessors, (73), 30 states have return successors, (97), 73 states have call predecessors, (97), 73 states have call successors, (97) [2024-11-11 21:54:23,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 441 transitions. [2024-11-11 21:54:23,958 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 441 transitions. Word has length 216 [2024-11-11 21:54:23,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:54:23,959 INFO L471 AbstractCegarLoop]: Abstraction has 322 states and 441 transitions. [2024-11-11 21:54:23,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.5625) internal successors, (89), 12 states have internal predecessors, (89), 9 states have call successors, (56), 8 states have call predecessors, (56), 7 states have return successors, (55), 7 states have call predecessors, (55), 9 states have call successors, (55) [2024-11-11 21:54:23,959 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 441 transitions. [2024-11-11 21:54:23,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-11 21:54:23,964 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:54:23,964 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 9, 9, 4, 4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:54:23,989 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-11 21:54:24,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 21:54:24,165 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:54:24,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:54:24,166 INFO L85 PathProgramCache]: Analyzing trace with hash -324316773, now seen corresponding path program 1 times [2024-11-11 21:54:24,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:54:24,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967127346] [2024-11-11 21:54:24,166 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:54:24,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:54:24,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:26,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 21:54:26,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:26,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 21:54:26,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:26,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 21:54:26,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:26,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 21:54:26,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:27,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 21:54:27,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:27,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 21:54:27,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:27,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-11 21:54:27,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:27,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-11 21:54:27,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:27,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 21:54:27,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:27,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-11 21:54:27,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:27,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-11 21:54:27,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:27,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 21:54:27,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:27,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-11 21:54:27,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:27,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-11 21:54:27,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:27,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-11 21:54:27,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:27,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-11 21:54:27,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:27,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-11 21:54:27,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:27,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-11 21:54:27,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:27,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-11 21:54:27,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:27,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-11 21:54:27,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:27,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-11 21:54:27,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:27,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-11 21:54:27,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:27,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-11-11 21:54:27,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:27,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-11 21:54:27,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:27,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-11 21:54:27,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:27,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-11-11 21:54:27,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:27,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-11-11 21:54:27,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:27,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-11-11 21:54:27,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:27,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-11-11 21:54:27,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:27,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2024-11-11 21:54:27,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:27,350 INFO L134 CoverageAnalysis]: Checked inductivity of 1069 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1066 trivial. 0 not checked. [2024-11-11 21:54:27,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:54:27,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967127346] [2024-11-11 21:54:27,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967127346] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 21:54:27,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [648751318] [2024-11-11 21:54:27,350 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:54:27,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 21:54:27,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 21:54:27,352 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 21:54:27,353 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-11 21:54:28,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:54:28,049 INFO L256 TraceCheckSpWp]: Trace formula consists of 1716 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-11 21:54:28,057 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 21:54:28,319 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-11 21:54:31,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-11 21:54:31,627 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-11 21:54:31,627 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 48