./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_peterson.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_peterson.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 4a8be7009a37d1df58713fd67cd9771c39e6139a0416009824ceb58da10928b7 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 04:06:52,503 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 04:06:52,614 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 04:06:52,618 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 04:06:52,622 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 04:06:52,654 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 04:06:52,655 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 04:06:52,656 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 04:06:52,656 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 04:06:52,657 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 04:06:52,657 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 04:06:52,657 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 04:06:52,658 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 04:06:52,658 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 04:06:52,659 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 04:06:52,659 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 04:06:52,659 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 04:06:52,660 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 04:06:52,660 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 04:06:52,660 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 04:06:52,661 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 04:06:52,661 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 04:06:52,662 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 04:06:52,662 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 04:06:52,662 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 04:06:52,662 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 04:06:52,663 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 04:06:52,663 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 04:06:52,663 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 04:06:52,664 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 04:06:52,664 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 04:06:52,664 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 04:06:52,664 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 04:06:52,665 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 04:06:52,665 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 04:06:52,665 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 04:06:52,665 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 04:06:52,666 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 04:06:52,666 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 04:06:52,666 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 04:06:52,666 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 04:06:52,667 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 04:06:52,667 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a8be7009a37d1df58713fd67cd9771c39e6139a0416009824ceb58da10928b7 [2024-10-14 04:06:52,879 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 04:06:52,913 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 04:06:52,916 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 04:06:52,917 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 04:06:52,917 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 04:06:52,918 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_peterson.i [2024-10-14 04:06:54,296 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 04:06:54,559 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 04:06:54,562 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_peterson.i [2024-10-14 04:06:54,584 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61b884cd3/b86184862adf4f4e98869d49b113cf28/FLAG4f543393e [2024-10-14 04:06:54,598 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61b884cd3/b86184862adf4f4e98869d49b113cf28 [2024-10-14 04:06:54,601 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 04:06:54,602 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 04:06:54,603 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 04:06:54,604 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 04:06:54,608 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 04:06:54,608 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:06:54" (1/1) ... [2024-10-14 04:06:54,610 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@341e03c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:06:54, skipping insertion in model container [2024-10-14 04:06:54,611 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:06:54" (1/1) ... [2024-10-14 04:06:54,650 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 04:06:54,977 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_peterson.i[23605,23618] [2024-10-14 04:06:55,095 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 04:06:55,114 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 04:06:55,149 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_peterson.i[23605,23618] [2024-10-14 04:06:55,208 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 04:06:55,246 INFO L204 MainTranslator]: Completed translation [2024-10-14 04:06:55,246 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:06:55 WrapperNode [2024-10-14 04:06:55,246 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 04:06:55,247 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 04:06:55,247 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 04:06:55,247 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 04:06:55,253 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:06:55" (1/1) ... [2024-10-14 04:06:55,277 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:06:55" (1/1) ... [2024-10-14 04:06:55,307 INFO L138 Inliner]: procedures = 145, calls = 276, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 435 [2024-10-14 04:06:55,308 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 04:06:55,308 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 04:06:55,308 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 04:06:55,308 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 04:06:55,317 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:06:55" (1/1) ... [2024-10-14 04:06:55,318 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:06:55" (1/1) ... [2024-10-14 04:06:55,323 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:06:55" (1/1) ... [2024-10-14 04:06:55,352 INFO L175 MemorySlicer]: Split 148 memory accesses to 17 slices as follows [2, 5, 8, 8, 29, 21, 7, 7, 13, 7, 7, 5, 13, 6, 5, 5, 0]. 20 percent of accesses are in the largest equivalence class. The 40 initializations are split as follows [2, 0, 3, 3, 9, 9, 3, 3, 0, 3, 3, 0, 0, 2, 0, 0, 0]. The 37 writes are split as follows [0, 1, 2, 2, 11, 6, 2, 2, 1, 2, 2, 1, 1, 2, 1, 1, 0]. [2024-10-14 04:06:55,353 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:06:55" (1/1) ... [2024-10-14 04:06:55,353 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:06:55" (1/1) ... [2024-10-14 04:06:55,368 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:06:55" (1/1) ... [2024-10-14 04:06:55,372 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:06:55" (1/1) ... [2024-10-14 04:06:55,376 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:06:55" (1/1) ... [2024-10-14 04:06:55,378 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:06:55" (1/1) ... [2024-10-14 04:06:55,385 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 04:06:55,386 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 04:06:55,386 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 04:06:55,386 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 04:06:55,386 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:06:55" (1/1) ... [2024-10-14 04:06:55,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 04:06:55,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 04:06:55,425 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 04:06:55,427 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 04:06:55,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-14 04:06:55,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-14 04:06:55,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-14 04:06:55,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-14 04:06:55,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-14 04:06:55,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-14 04:06:55,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-10-14 04:06:55,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-10-14 04:06:55,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-10-14 04:06:55,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-10-14 04:06:55,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-10-14 04:06:55,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-10-14 04:06:55,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-10-14 04:06:55,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-10-14 04:06:55,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-10-14 04:06:55,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-10-14 04:06:55,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-10-14 04:06:55,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-14 04:06:55,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-14 04:06:55,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-14 04:06:55,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-14 04:06:55,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-14 04:06:55,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-14 04:06:55,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-10-14 04:06:55,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-10-14 04:06:55,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-10-14 04:06:55,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-10-14 04:06:55,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-10-14 04:06:55,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-10-14 04:06:55,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-10-14 04:06:55,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-10-14 04:06:55,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-10-14 04:06:55,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-10-14 04:06:55,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-10-14 04:06:55,470 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-14 04:06:55,470 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-14 04:06:55,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 04:06:55,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-14 04:06:55,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-14 04:06:55,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-14 04:06:55,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-14 04:06:55,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-10-14 04:06:55,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-10-14 04:06:55,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-10-14 04:06:55,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-10-14 04:06:55,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-10-14 04:06:55,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-10-14 04:06:55,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-10-14 04:06:55,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-10-14 04:06:55,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-10-14 04:06:55,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-10-14 04:06:55,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-10-14 04:06:55,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2024-10-14 04:06:55,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2024-10-14 04:06:55,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2024-10-14 04:06:55,472 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2024-10-14 04:06:55,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2024-10-14 04:06:55,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-14 04:06:55,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-14 04:06:55,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-14 04:06:55,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-14 04:06:55,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-10-14 04:06:55,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-10-14 04:06:55,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-10-14 04:06:55,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-10-14 04:06:55,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-10-14 04:06:55,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-10-14 04:06:55,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-10-14 04:06:55,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-10-14 04:06:55,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-10-14 04:06:55,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-10-14 04:06:55,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2024-10-14 04:06:55,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2024-10-14 04:06:55,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2024-10-14 04:06:55,473 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2024-10-14 04:06:55,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2024-10-14 04:06:55,473 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2024-10-14 04:06:55,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2024-10-14 04:06:55,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-14 04:06:55,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-10-14 04:06:55,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-10-14 04:06:55,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-10-14 04:06:55,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-10-14 04:06:55,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-10-14 04:06:55,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-10-14 04:06:55,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-10-14 04:06:55,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-10-14 04:06:55,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-10-14 04:06:55,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-10-14 04:06:55,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-10-14 04:06:55,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-10-14 04:06:55,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-10-14 04:06:55,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2024-10-14 04:06:55,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2024-10-14 04:06:55,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2024-10-14 04:06:55,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2024-10-14 04:06:55,476 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2024-10-14 04:06:55,476 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2024-10-14 04:06:55,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 04:06:55,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-14 04:06:55,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-14 04:06:55,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-14 04:06:55,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-14 04:06:55,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-14 04:06:55,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-10-14 04:06:55,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-10-14 04:06:55,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-10-14 04:06:55,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-10-14 04:06:55,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-10-14 04:06:55,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-10-14 04:06:55,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-10-14 04:06:55,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-10-14 04:06:55,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-10-14 04:06:55,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-10-14 04:06:55,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-10-14 04:06:55,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 04:06:55,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 04:06:55,665 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 04:06:55,667 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 04:07:00,222 INFO L? ?]: Removed 52 outVars from TransFormulas that were not future-live. [2024-10-14 04:07:00,222 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 04:07:00,252 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 04:07:00,252 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-14 04:07:00,252 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:07:00 BoogieIcfgContainer [2024-10-14 04:07:00,253 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 04:07:00,254 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 04:07:00,254 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 04:07:00,257 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 04:07:00,257 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 04:06:54" (1/3) ... [2024-10-14 04:07:00,257 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65cb1da2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:07:00, skipping insertion in model container [2024-10-14 04:07:00,258 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:06:55" (2/3) ... [2024-10-14 04:07:00,258 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65cb1da2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:07:00, skipping insertion in model container [2024-10-14 04:07:00,258 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:07:00" (3/3) ... [2024-10-14 04:07:00,259 INFO L112 eAbstractionObserver]: Analyzing ICFG cs_peterson.i [2024-10-14 04:07:00,272 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 04:07:00,272 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 04:07:00,321 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 04:07:00,326 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;@6d903d0a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 04:07:00,326 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 04:07:00,332 INFO L276 IsEmpty]: Start isEmpty. Operand has 107 states, 66 states have (on average 1.3484848484848484) internal successors, (89), 67 states have internal predecessors, (89), 34 states have call successors, (34), 5 states have call predecessors, (34), 5 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-10-14 04:07:00,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-14 04:07:00,343 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:07:00,344 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:07:00,345 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:07:00,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:07:00,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1351195561, now seen corresponding path program 1 times [2024-10-14 04:07:00,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:07:00,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663356419] [2024-10-14 04:07:00,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:07:00,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:07:00,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:00,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-14 04:07:00,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:00,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-14 04:07:00,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:00,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 04:07:00,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:00,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-14 04:07:00,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:00,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-14 04:07:00,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:00,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-14 04:07:00,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:00,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-14 04:07:00,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:00,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 04:07:00,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:00,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 04:07:00,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:00,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-14 04:07:00,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:00,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-14 04:07:00,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:00,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-14 04:07:00,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:00,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-14 04:07:00,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:00,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-14 04:07:00,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:00,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-14 04:07:00,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:00,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-14 04:07:00,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:00,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-14 04:07:00,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:00,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-14 04:07:00,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:00,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 04:07:00,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:00,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-14 04:07:00,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:00,989 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-14 04:07:00,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:07:00,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663356419] [2024-10-14 04:07:00,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663356419] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:07:00,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:07:00,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 04:07:00,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861210203] [2024-10-14 04:07:00,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:07:00,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 04:07:00,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:07:01,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 04:07:01,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:07:01,023 INFO L87 Difference]: Start difference. First operand has 107 states, 66 states have (on average 1.3484848484848484) internal successors, (89), 67 states have internal predecessors, (89), 34 states have call successors, (34), 5 states have call predecessors, (34), 5 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 04:07:01,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:07:01,114 INFO L93 Difference]: Finished difference Result 216 states and 352 transitions. [2024-10-14 04:07:01,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 04:07:01,117 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 131 [2024-10-14 04:07:01,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:07:01,125 INFO L225 Difference]: With dead ends: 216 [2024-10-14 04:07:01,128 INFO L226 Difference]: Without dead ends: 108 [2024-10-14 04:07:01,132 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:07:01,135 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 3 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 04:07:01,137 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 291 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:07:01,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-10-14 04:07:01,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 106. [2024-10-14 04:07:01,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 66 states have (on average 1.2727272727272727) internal successors, (84), 66 states have internal predecessors, (84), 34 states have call successors, (34), 5 states have call predecessors, (34), 5 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-10-14 04:07:01,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 152 transitions. [2024-10-14 04:07:01,189 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 152 transitions. Word has length 131 [2024-10-14 04:07:01,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:07:01,189 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 152 transitions. [2024-10-14 04:07:01,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 04:07:01,190 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 152 transitions. [2024-10-14 04:07:01,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-10-14 04:07:01,199 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:07:01,200 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:07:01,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 04:07:01,200 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:07:01,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:07:01,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1880845933, now seen corresponding path program 1 times [2024-10-14 04:07:01,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:07:01,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376046704] [2024-10-14 04:07:01,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:07:01,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:07:01,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:01,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 04:07:01,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:01,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 04:07:01,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:01,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 04:07:01,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:01,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-14 04:07:01,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:01,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 04:07:01,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:01,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-14 04:07:01,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:01,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-14 04:07:01,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:01,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-14 04:07:01,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:01,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-14 04:07:01,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:01,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-14 04:07:01,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:01,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 04:07:01,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:01,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 04:07:01,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:01,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 04:07:01,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:01,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 04:07:01,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:01,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-14 04:07:01,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:01,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 04:07:01,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:01,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 04:07:01,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:01,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-14 04:07:01,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:01,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-14 04:07:01,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:01,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-14 04:07:01,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:01,628 INFO L134 CoverageAnalysis]: Checked inductivity of 761 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-14 04:07:01,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:07:01,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376046704] [2024-10-14 04:07:01,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376046704] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:07:01,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:07:01,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 04:07:01,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791507469] [2024-10-14 04:07:01,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:07:01,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 04:07:01,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:07:01,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 04:07:01,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:07:01,636 INFO L87 Difference]: Start difference. First operand 106 states and 152 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 04:07:01,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:07:01,695 INFO L93 Difference]: Finished difference Result 211 states and 304 transitions. [2024-10-14 04:07:01,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 04:07:01,696 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 134 [2024-10-14 04:07:01,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:07:01,697 INFO L225 Difference]: With dead ends: 211 [2024-10-14 04:07:01,699 INFO L226 Difference]: Without dead ends: 107 [2024-10-14 04:07:01,700 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:07:01,702 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 0 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 04:07:01,703 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 292 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:07:01,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-10-14 04:07:01,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2024-10-14 04:07:01,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 67 states have (on average 1.2686567164179106) internal successors, (85), 67 states have internal predecessors, (85), 34 states have call successors, (34), 5 states have call predecessors, (34), 5 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-10-14 04:07:01,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 153 transitions. [2024-10-14 04:07:01,726 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 153 transitions. Word has length 134 [2024-10-14 04:07:01,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:07:01,727 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 153 transitions. [2024-10-14 04:07:01,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 04:07:01,728 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 153 transitions. [2024-10-14 04:07:01,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-10-14 04:07:01,732 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:07:01,732 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:07:01,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 04:07:01,733 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:07:01,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:07:01,734 INFO L85 PathProgramCache]: Analyzing trace with hash 633416966, now seen corresponding path program 1 times [2024-10-14 04:07:01,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:07:01,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282848048] [2024-10-14 04:07:01,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:07:01,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:07:01,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:02,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 04:07:02,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:02,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 04:07:02,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:02,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 04:07:02,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:02,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-14 04:07:02,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:02,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-14 04:07:02,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:02,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-14 04:07:02,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:02,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 04:07:02,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:02,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-14 04:07:02,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:02,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-14 04:07:02,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:02,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 04:07:02,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:02,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 04:07:02,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:02,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 04:07:02,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:02,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-14 04:07:02,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:02,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 04:07:02,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:02,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-14 04:07:02,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:02,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-14 04:07:02,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:02,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-14 04:07:02,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:02,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-14 04:07:02,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:02,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-14 04:07:02,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:02,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-14 04:07:02,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:02,139 INFO L134 CoverageAnalysis]: Checked inductivity of 762 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-14 04:07:02,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:07:02,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282848048] [2024-10-14 04:07:02,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282848048] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 04:07:02,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [509742566] [2024-10-14 04:07:02,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:07:02,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 04:07:02,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 04:07:02,145 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 04:07:02,147 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 04:07:02,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:02,519 INFO L255 TraceCheckSpWp]: Trace formula consists of 933 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 04:07:02,532 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 04:07:02,584 INFO L134 CoverageAnalysis]: Checked inductivity of 762 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-14 04:07:02,584 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 04:07:02,681 INFO L134 CoverageAnalysis]: Checked inductivity of 762 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-14 04:07:02,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [509742566] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 04:07:02,681 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 04:07:02,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2024-10-14 04:07:02,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193075062] [2024-10-14 04:07:02,682 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 04:07:02,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 04:07:02,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:07:02,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 04:07:02,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 04:07:02,684 INFO L87 Difference]: Start difference. First operand 107 states and 153 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 1 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2024-10-14 04:07:02,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:07:02,746 INFO L93 Difference]: Finished difference Result 214 states and 308 transitions. [2024-10-14 04:07:02,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 04:07:02,746 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 1 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) Word has length 135 [2024-10-14 04:07:02,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:07:02,748 INFO L225 Difference]: With dead ends: 214 [2024-10-14 04:07:02,748 INFO L226 Difference]: Without dead ends: 109 [2024-10-14 04:07:02,748 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 307 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 04:07:02,749 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 0 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 04:07:02,749 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 437 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:07:02,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-10-14 04:07:02,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2024-10-14 04:07:02,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 69 states have (on average 1.2608695652173914) internal successors, (87), 69 states have internal predecessors, (87), 34 states have call successors, (34), 5 states have call predecessors, (34), 5 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-10-14 04:07:02,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 155 transitions. [2024-10-14 04:07:02,765 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 155 transitions. Word has length 135 [2024-10-14 04:07:02,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:07:02,765 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 155 transitions. [2024-10-14 04:07:02,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 1 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2024-10-14 04:07:02,766 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 155 transitions. [2024-10-14 04:07:02,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-10-14 04:07:02,771 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:07:02,771 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 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, 1, 1, 1, 1, 1] [2024-10-14 04:07:02,787 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-14 04:07:02,972 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 [2024-10-14 04:07:02,972 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:07:02,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:07:02,973 INFO L85 PathProgramCache]: Analyzing trace with hash -593786202, now seen corresponding path program 2 times [2024-10-14 04:07:02,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:07:02,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419104285] [2024-10-14 04:07:02,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:07:02,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:07:03,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:03,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-14 04:07:03,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:03,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 04:07:03,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:03,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-14 04:07:03,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:03,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-14 04:07:03,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:03,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-14 04:07:03,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:03,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-14 04:07:03,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:03,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 04:07:03,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:03,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 04:07:03,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:03,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-14 04:07:03,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:03,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-14 04:07:03,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:03,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-14 04:07:03,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:03,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-14 04:07:03,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:03,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-14 04:07:03,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:03,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-14 04:07:03,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:03,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-14 04:07:03,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:03,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-14 04:07:03,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:03,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-14 04:07:03,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:03,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 04:07:03,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:03,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-14 04:07:03,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:03,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-14 04:07:03,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:03,296 INFO L134 CoverageAnalysis]: Checked inductivity of 767 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 766 trivial. 0 not checked. [2024-10-14 04:07:03,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:07:03,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419104285] [2024-10-14 04:07:03,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419104285] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 04:07:03,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [34015048] [2024-10-14 04:07:03,296 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 04:07:03,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 04:07:03,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 04:07:03,300 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 04:07:03,302 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 04:07:03,579 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-14 04:07:03,580 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 04:07:03,583 INFO L255 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-14 04:07:03,591 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 04:07:03,817 INFO L134 CoverageAnalysis]: Checked inductivity of 767 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 767 trivial. 0 not checked. [2024-10-14 04:07:03,818 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 04:07:03,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [34015048] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:07:03,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 04:07:03,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-10-14 04:07:03,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101341545] [2024-10-14 04:07:03,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:07:03,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 04:07:03,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:07:03,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 04:07:03,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 04:07:03,822 INFO L87 Difference]: Start difference. First operand 109 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 04:07:03,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:07:03,875 INFO L93 Difference]: Finished difference Result 207 states and 300 transitions. [2024-10-14 04:07:03,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 04:07:03,875 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 137 [2024-10-14 04:07:03,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:07:03,878 INFO L225 Difference]: With dead ends: 207 [2024-10-14 04:07:03,878 INFO L226 Difference]: Without dead ends: 161 [2024-10-14 04:07:03,879 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:07:03,879 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 72 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 04:07:03,880 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 458 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:07:03,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2024-10-14 04:07:03,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2024-10-14 04:07:03,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 103 states have (on average 1.3009708737864079) internal successors, (134), 103 states have internal predecessors, (134), 47 states have call successors, (47), 10 states have call predecessors, (47), 10 states have return successors, (51), 47 states have call predecessors, (51), 47 states have call successors, (51) [2024-10-14 04:07:03,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 232 transitions. [2024-10-14 04:07:03,892 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 232 transitions. Word has length 137 [2024-10-14 04:07:03,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:07:03,892 INFO L471 AbstractCegarLoop]: Abstraction has 161 states and 232 transitions. [2024-10-14 04:07:03,892 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 04:07:03,893 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 232 transitions. [2024-10-14 04:07:03,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2024-10-14 04:07:03,895 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:07:03,895 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 4, 4, 4, 4, 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, 1, 1, 1, 1] [2024-10-14 04:07:03,912 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-14 04:07:04,095 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 [2024-10-14 04:07:04,097 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:07:04,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:07:04,097 INFO L85 PathProgramCache]: Analyzing trace with hash 86734595, now seen corresponding path program 1 times [2024-10-14 04:07:04,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:07:04,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260019121] [2024-10-14 04:07:04,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:07:04,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:07:04,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:04,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 04:07:04,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:04,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 04:07:04,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:04,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 04:07:04,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:04,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-14 04:07:04,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:04,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-14 04:07:04,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:04,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 04:07:04,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:04,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-14 04:07:04,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:04,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-14 04:07:04,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:04,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 04:07:04,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:04,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-14 04:07:04,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:04,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 04:07:04,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:04,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 04:07:04,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:04,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 04:07:04,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:04,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-14 04:07:04,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:04,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 04:07:04,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:04,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-14 04:07:04,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:04,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-14 04:07:04,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:04,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-14 04:07:04,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:04,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-14 04:07:04,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:04,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-14 04:07:04,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:04,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-14 04:07:04,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:04,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-14 04:07:04,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:04,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-14 04:07:04,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:04,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-14 04:07:04,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:04,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-14 04:07:04,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:04,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-14 04:07:04,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:04,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-10-14 04:07:04,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:04,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-10-14 04:07:04,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:04,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-14 04:07:04,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:04,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-10-14 04:07:04,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:04,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-10-14 04:07:04,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:04,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-10-14 04:07:04,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:04,583 INFO L134 CoverageAnalysis]: Checked inductivity of 1139 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1138 trivial. 0 not checked. [2024-10-14 04:07:04,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:07:04,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260019121] [2024-10-14 04:07:04,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260019121] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 04:07:04,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2066087532] [2024-10-14 04:07:04,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:07:04,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 04:07:04,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 04:07:04,585 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) [2024-10-14 04:07:04,586 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 04:07:04,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:04,985 INFO L255 TraceCheckSpWp]: Trace formula consists of 1426 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 04:07:04,989 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 04:07:05,010 INFO L134 CoverageAnalysis]: Checked inductivity of 1139 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1138 trivial. 0 not checked. [2024-10-14 04:07:05,011 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 04:07:05,161 INFO L134 CoverageAnalysis]: Checked inductivity of 1139 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1138 trivial. 0 not checked. [2024-10-14 04:07:05,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2066087532] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 04:07:05,162 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 04:07:05,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 3, 4] total 10 [2024-10-14 04:07:05,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369196340] [2024-10-14 04:07:05,162 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 04:07:05,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 04:07:05,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:07:05,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 04:07:05,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-10-14 04:07:05,163 INFO L87 Difference]: Start difference. First operand 161 states and 232 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 6 states have internal predecessors, (92), 2 states have call successors, (66), 6 states have call predecessors, (66), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) [2024-10-14 04:07:09,570 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 [] [2024-10-14 04:07:10,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:07:10,086 INFO L93 Difference]: Finished difference Result 334 states and 482 transitions. [2024-10-14 04:07:10,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 04:07:10,086 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 6 states have internal predecessors, (92), 2 states have call successors, (66), 6 states have call predecessors, (66), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) Word has length 201 [2024-10-14 04:07:10,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:07:10,088 INFO L225 Difference]: With dead ends: 334 [2024-10-14 04:07:10,088 INFO L226 Difference]: Without dead ends: 181 [2024-10-14 04:07:10,089 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 470 GetRequests, 459 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-10-14 04:07:10,089 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 58 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 105 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-10-14 04:07:10,090 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 414 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 355 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2024-10-14 04:07:10,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-10-14 04:07:10,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 177. [2024-10-14 04:07:10,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 117 states have (on average 1.2820512820512822) internal successors, (150), 119 states have internal predecessors, (150), 47 states have call successors, (47), 10 states have call predecessors, (47), 12 states have return successors, (55), 47 states have call predecessors, (55), 47 states have call successors, (55) [2024-10-14 04:07:10,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 252 transitions. [2024-10-14 04:07:10,116 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 252 transitions. Word has length 201 [2024-10-14 04:07:10,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:07:10,116 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 252 transitions. [2024-10-14 04:07:10,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 6 states have internal predecessors, (92), 2 states have call successors, (66), 6 states have call predecessors, (66), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) [2024-10-14 04:07:10,117 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 252 transitions. [2024-10-14 04:07:10,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-10-14 04:07:10,122 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:07:10,122 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 9, 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, 1, 1, 1, 1] [2024-10-14 04:07:10,139 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-14 04:07:10,326 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 [2024-10-14 04:07:10,328 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:07:10,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:07:10,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1247692275, now seen corresponding path program 2 times [2024-10-14 04:07:10,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:07:10,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117748338] [2024-10-14 04:07:10,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:07:10,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:07:10,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:10,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 04:07:11,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:11,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 04:07:11,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:11,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 04:07:11,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:11,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-14 04:07:11,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:11,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-14 04:07:11,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:11,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 04:07:11,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:11,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-14 04:07:11,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:11,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-14 04:07:11,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:11,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 04:07:11,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:11,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-14 04:07:11,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:11,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 04:07:11,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:11,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 04:07:11,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:11,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 04:07:11,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:11,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-14 04:07:11,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:11,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-14 04:07:11,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:11,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-14 04:07:11,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:11,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-14 04:07:11,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:11,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-14 04:07:11,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:11,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-14 04:07:11,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:11,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-14 04:07:11,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:11,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-14 04:07:11,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:11,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-14 04:07:11,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:11,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-14 04:07:11,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:11,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-14 04:07:11,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:11,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-10-14 04:07:11,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:11,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-10-14 04:07:11,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:11,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-14 04:07:11,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:11,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-10-14 04:07:11,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:11,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-10-14 04:07:11,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:11,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-10-14 04:07:11,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:11,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-10-14 04:07:11,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:11,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-10-14 04:07:11,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:11,159 INFO L134 CoverageAnalysis]: Checked inductivity of 1207 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1207 trivial. 0 not checked. [2024-10-14 04:07:11,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:07:11,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117748338] [2024-10-14 04:07:11,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117748338] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:07:11,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:07:11,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 04:07:11,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037532756] [2024-10-14 04:07:11,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:07:11,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 04:07:11,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:07:11,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 04:07:11,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-14 04:07:11,161 INFO L87 Difference]: Start difference. First operand 177 states and 252 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-10-14 04:07:15,198 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-14 04:07:19,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-14 04:07:23,547 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-14 04:07:27,556 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 [] [2024-10-14 04:07:28,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:07:28,604 INFO L93 Difference]: Finished difference Result 471 states and 679 transitions. [2024-10-14 04:07:28,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-14 04:07:28,604 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 213 [2024-10-14 04:07:28,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:07:28,607 INFO L225 Difference]: With dead ends: 471 [2024-10-14 04:07:28,607 INFO L226 Difference]: Without dead ends: 331 [2024-10-14 04:07:28,608 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2024-10-14 04:07:28,608 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 166 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 89 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:07:28,608 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 603 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 579 Invalid, 4 Unknown, 0 Unchecked, 17.1s Time] [2024-10-14 04:07:28,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2024-10-14 04:07:28,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 321. [2024-10-14 04:07:28,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 204 states have (on average 1.2794117647058822) internal successors, (261), 209 states have internal predecessors, (261), 91 states have call successors, (91), 20 states have call predecessors, (91), 25 states have return successors, (114), 91 states have call predecessors, (114), 91 states have call successors, (114) [2024-10-14 04:07:28,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 466 transitions. [2024-10-14 04:07:28,658 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 466 transitions. Word has length 213 [2024-10-14 04:07:28,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:07:28,658 INFO L471 AbstractCegarLoop]: Abstraction has 321 states and 466 transitions. [2024-10-14 04:07:28,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-10-14 04:07:28,658 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 466 transitions. [2024-10-14 04:07:28,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-10-14 04:07:28,664 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:07:28,664 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 9, 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, 1, 1, 1, 1] [2024-10-14 04:07:28,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 04:07:28,665 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:07:28,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:07:28,665 INFO L85 PathProgramCache]: Analyzing trace with hash -2144621587, now seen corresponding path program 1 times [2024-10-14 04:07:28,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:07:28,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034189491] [2024-10-14 04:07:28,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:07:28,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:07:28,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:29,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 04:07:29,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:29,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 04:07:29,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:29,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 04:07:29,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:29,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-14 04:07:29,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:29,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-14 04:07:29,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:29,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 04:07:29,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:29,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-14 04:07:29,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:29,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-14 04:07:29,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:29,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 04:07:29,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:29,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-14 04:07:29,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:29,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 04:07:29,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:29,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 04:07:29,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:29,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 04:07:29,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:29,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-14 04:07:29,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:29,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-14 04:07:29,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:29,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-14 04:07:29,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:29,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-14 04:07:29,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:29,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-14 04:07:29,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:29,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-14 04:07:29,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:29,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-14 04:07:29,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:29,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-14 04:07:29,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:29,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-14 04:07:29,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:29,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-14 04:07:29,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:29,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-14 04:07:29,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:29,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-10-14 04:07:29,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:29,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-10-14 04:07:29,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:29,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-14 04:07:29,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:29,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-10-14 04:07:29,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:29,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-10-14 04:07:29,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:29,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-10-14 04:07:29,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:29,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-10-14 04:07:29,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:29,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-10-14 04:07:29,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:29,513 INFO L134 CoverageAnalysis]: Checked inductivity of 1207 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1207 trivial. 0 not checked. [2024-10-14 04:07:29,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:07:29,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034189491] [2024-10-14 04:07:29,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034189491] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:07:29,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:07:29,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 04:07:29,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096057420] [2024-10-14 04:07:29,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:07:29,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 04:07:29,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:07:29,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 04:07:29,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-14 04:07:29,514 INFO L87 Difference]: Start difference. First operand 321 states and 466 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-10-14 04:07:34,019 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 [] [2024-10-14 04:07:38,034 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-14 04:07:42,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-14 04:07:46,049 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 [] [2024-10-14 04:07:48,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:07:48,049 INFO L93 Difference]: Finished difference Result 589 states and 841 transitions. [2024-10-14 04:07:48,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-14 04:07:48,049 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 213 [2024-10-14 04:07:48,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:07:48,051 INFO L225 Difference]: With dead ends: 589 [2024-10-14 04:07:48,051 INFO L226 Difference]: Without dead ends: 298 [2024-10-14 04:07:48,055 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2024-10-14 04:07:48,055 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 144 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 690 mSolverCounterSat, 51 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 652 SdHoareTripleChecker+Invalid, 745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 690 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.2s IncrementalHoareTripleChecker+Time [2024-10-14 04:07:48,055 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 652 Invalid, 745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 690 Invalid, 4 Unknown, 0 Unchecked, 18.2s Time] [2024-10-14 04:07:48,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2024-10-14 04:07:48,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 290. [2024-10-14 04:07:48,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 185 states have (on average 1.2378378378378379) internal successors, (229), 189 states have internal predecessors, (229), 82 states have call successors, (82), 18 states have call predecessors, (82), 22 states have return successors, (96), 82 states have call predecessors, (96), 82 states have call successors, (96) [2024-10-14 04:07:48,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 407 transitions. [2024-10-14 04:07:48,078 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 407 transitions. Word has length 213 [2024-10-14 04:07:48,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:07:48,079 INFO L471 AbstractCegarLoop]: Abstraction has 290 states and 407 transitions. [2024-10-14 04:07:48,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-10-14 04:07:48,080 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 407 transitions. [2024-10-14 04:07:48,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-10-14 04:07:48,082 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:07:48,082 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 9, 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, 1, 1, 1, 1] [2024-10-14 04:07:48,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 04:07:48,082 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:07:48,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:07:48,082 INFO L85 PathProgramCache]: Analyzing trace with hash 842325453, now seen corresponding path program 1 times [2024-10-14 04:07:48,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:07:48,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562510591] [2024-10-14 04:07:48,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:07:48,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:07:48,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:48,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-14 04:07:48,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:48,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 04:07:48,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:48,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 04:07:48,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:48,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-14 04:07:48,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:48,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-14 04:07:48,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:48,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 04:07:48,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:48,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-14 04:07:48,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:49,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-14 04:07:49,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:49,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 04:07:49,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:49,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-14 04:07:49,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:49,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 04:07:49,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:49,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 04:07:49,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:49,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 04:07:49,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:49,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-14 04:07:49,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:49,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-14 04:07:49,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:49,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-14 04:07:49,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:49,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-14 04:07:49,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:49,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-14 04:07:49,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:49,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-14 04:07:49,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:49,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-14 04:07:49,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:49,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-14 04:07:49,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:49,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-14 04:07:49,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:49,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-14 04:07:49,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:49,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-14 04:07:49,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:49,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-10-14 04:07:49,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:49,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-10-14 04:07:49,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:49,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-14 04:07:49,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:49,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-10-14 04:07:49,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:49,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-10-14 04:07:49,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:49,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-10-14 04:07:49,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:49,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-10-14 04:07:49,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:49,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-10-14 04:07:49,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:49,108 INFO L134 CoverageAnalysis]: Checked inductivity of 1207 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1204 trivial. 0 not checked. [2024-10-14 04:07:49,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:07:49,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562510591] [2024-10-14 04:07:49,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562510591] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 04:07:49,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1754447634] [2024-10-14 04:07:49,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:07:49,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 04:07:49,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 04:07:49,113 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) [2024-10-14 04:07:49,114 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-14 04:07:50,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:50,587 INFO L255 TraceCheckSpWp]: Trace formula consists of 1712 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-14 04:07:50,594 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 04:07:50,696 INFO L134 CoverageAnalysis]: Checked inductivity of 1207 backedges. 320 proven. 4 refuted. 0 times theorem prover too weak. 883 trivial. 0 not checked. [2024-10-14 04:07:50,696 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 04:07:51,177 INFO L134 CoverageAnalysis]: Checked inductivity of 1207 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1203 trivial. 0 not checked. [2024-10-14 04:07:51,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1754447634] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 04:07:51,177 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 04:07:51,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 6, 5] total 16 [2024-10-14 04:07:51,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196907074] [2024-10-14 04:07:51,177 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 04:07:51,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-14 04:07:51,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:07:51,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-14 04:07:51,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2024-10-14 04:07:51,179 INFO L87 Difference]: Start difference. First operand 290 states and 407 transitions. Second operand has 16 states, 16 states have (on average 5.375) internal successors, (86), 12 states have internal predecessors, (86), 9 states have call successors, (60), 8 states have call predecessors, (60), 7 states have return successors, (59), 7 states have call predecessors, (59), 9 states have call successors, (59) [2024-10-14 04:07:55,277 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 [] [2024-10-14 04:07:59,778 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-14 04:08:03,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-14 04:08:07,805 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 [] [2024-10-14 04:08:09,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:08:09,291 INFO L93 Difference]: Finished difference Result 572 states and 822 transitions. [2024-10-14 04:08:09,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-14 04:08:09,291 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.375) internal successors, (86), 12 states have internal predecessors, (86), 9 states have call successors, (60), 8 states have call predecessors, (60), 7 states have return successors, (59), 7 states have call predecessors, (59), 9 states have call successors, (59) Word has length 213 [2024-10-14 04:08:09,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:08:09,294 INFO L225 Difference]: With dead ends: 572 [2024-10-14 04:08:09,294 INFO L226 Difference]: Without dead ends: 309 [2024-10-14 04:08:09,295 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 515 GetRequests, 489 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=203, Invalid=553, Unknown=0, NotChecked=0, Total=756 [2024-10-14 04:08:09,295 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 203 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 754 mSolverCounterSat, 117 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 754 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.5s IncrementalHoareTripleChecker+Time [2024-10-14 04:08:09,295 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 603 Invalid, 875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 754 Invalid, 4 Unknown, 0 Unchecked, 17.5s Time] [2024-10-14 04:08:09,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2024-10-14 04:08:09,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 303. [2024-10-14 04:08:09,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 197 states have (on average 1.2690355329949239) internal successors, (250), 201 states have internal predecessors, (250), 75 states have call successors, (75), 26 states have call predecessors, (75), 30 states have return successors, (99), 75 states have call predecessors, (99), 75 states have call successors, (99) [2024-10-14 04:08:09,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 424 transitions. [2024-10-14 04:08:09,317 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 424 transitions. Word has length 213 [2024-10-14 04:08:09,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:08:09,317 INFO L471 AbstractCegarLoop]: Abstraction has 303 states and 424 transitions. [2024-10-14 04:08:09,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.375) internal successors, (86), 12 states have internal predecessors, (86), 9 states have call successors, (60), 8 states have call predecessors, (60), 7 states have return successors, (59), 7 states have call predecessors, (59), 9 states have call successors, (59) [2024-10-14 04:08:09,318 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 424 transitions. [2024-10-14 04:08:09,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-10-14 04:08:09,324 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:08:09,325 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 9, 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, 1, 1, 1, 1] [2024-10-14 04:08:09,413 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-14 04:08:09,525 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 [2024-10-14 04:08:09,525 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:08:09,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:08:09,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1951132721, now seen corresponding path program 1 times [2024-10-14 04:08:09,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:08:09,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734159220] [2024-10-14 04:08:09,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:08:09,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:08:09,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:11,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-14 04:08:11,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:11,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 04:08:11,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:11,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 04:08:11,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:11,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-14 04:08:11,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:11,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-14 04:08:11,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:11,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 04:08:11,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:11,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-14 04:08:11,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:11,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-14 04:08:11,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:11,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 04:08:11,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:11,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-14 04:08:11,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:11,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 04:08:11,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:11,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 04:08:11,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:11,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 04:08:11,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:11,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-14 04:08:11,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:11,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-14 04:08:11,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:11,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-14 04:08:11,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:11,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-14 04:08:11,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:11,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-14 04:08:11,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:11,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-14 04:08:11,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:11,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-14 04:08:11,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:11,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-14 04:08:11,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:11,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-14 04:08:11,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:11,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-14 04:08:11,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:11,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-14 04:08:11,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:11,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-10-14 04:08:11,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:11,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-10-14 04:08:11,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:11,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-14 04:08:11,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:11,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-10-14 04:08:11,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:11,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-10-14 04:08:11,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:11,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-10-14 04:08:11,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:11,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-10-14 04:08:11,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:11,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-10-14 04:08:11,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:11,850 INFO L134 CoverageAnalysis]: Checked inductivity of 1207 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1204 trivial. 0 not checked. [2024-10-14 04:08:11,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:08:11,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734159220] [2024-10-14 04:08:11,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734159220] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 04:08:11,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [644071224] [2024-10-14 04:08:11,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:08:11,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 04:08:11,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 04:08:11,855 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) [2024-10-14 04:08:11,858 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-14 04:08:12,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:12,466 INFO L255 TraceCheckSpWp]: Trace formula consists of 1798 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-10-14 04:08:12,472 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 04:08:12,629 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 [2024-10-14 04:08:18,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 04:08:18,511 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 04:08:18,512 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 [2024-10-14 04:08:19,484 INFO L349 Elim1Store]: treesize reduction 64, result has 54.9 percent of original size [2024-10-14 04:08:19,485 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 104