./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/dll-queue-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 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/forester-heap/dll-queue-2.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 338b6951ab628b0237aa41c64d1786e44f90130a76a8fd0978f750b3fe39d026 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-23 23:39:41,550 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-23 23:39:41,602 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-23 23:39:41,608 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-23 23:39:41,608 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-23 23:39:41,631 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-23 23:39:41,633 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-23 23:39:41,633 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-23 23:39:41,634 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-23 23:39:41,634 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-23 23:39:41,634 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-23 23:39:41,635 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-23 23:39:41,635 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-23 23:39:41,635 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-23 23:39:41,636 INFO L153 SettingsManager]: * Use SBE=true [2024-10-23 23:39:41,636 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-23 23:39:41,636 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-23 23:39:41,637 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-23 23:39:41,637 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-23 23:39:41,637 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-23 23:39:41,638 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-23 23:39:41,638 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-23 23:39:41,638 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-23 23:39:41,639 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-23 23:39:41,639 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-23 23:39:41,639 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-23 23:39:41,639 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-23 23:39:41,640 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-23 23:39:41,640 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-23 23:39:41,640 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-23 23:39:41,641 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-23 23:39:41,641 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-23 23:39:41,641 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-23 23:39:41,641 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-23 23:39:41,642 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-23 23:39:41,642 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-23 23:39:41,642 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-23 23:39:41,642 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-23 23:39:41,643 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-23 23:39:41,643 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-23 23:39:41,643 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-23 23:39:41,644 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-23 23:39:41,644 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 338b6951ab628b0237aa41c64d1786e44f90130a76a8fd0978f750b3fe39d026 [2024-10-23 23:39:41,878 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-23 23:39:41,900 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-23 23:39:41,901 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-23 23:39:41,902 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-23 23:39:41,903 INFO L274 PluginConnector]: CDTParser initialized [2024-10-23 23:39:41,903 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/dll-queue-2.i [2024-10-23 23:39:43,060 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-23 23:39:43,285 INFO L384 CDTParser]: Found 1 translation units. [2024-10-23 23:39:43,285 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/dll-queue-2.i [2024-10-23 23:39:43,299 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f282ae6f6/726d3d483d4447a9af48f6b9657982d1/FLAGf5c5e1dc9 [2024-10-23 23:39:43,636 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f282ae6f6/726d3d483d4447a9af48f6b9657982d1 [2024-10-23 23:39:43,638 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-23 23:39:43,639 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-23 23:39:43,639 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-23 23:39:43,640 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-23 23:39:43,644 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-23 23:39:43,645 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:39:43" (1/1) ... [2024-10-23 23:39:43,645 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28f95edb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:39:43, skipping insertion in model container [2024-10-23 23:39:43,645 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:39:43" (1/1) ... [2024-10-23 23:39:43,676 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-23 23:39:43,898 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/forester-heap/dll-queue-2.i[22460,22473] [2024-10-23 23:39:43,902 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/forester-heap/dll-queue-2.i[22531,22544] [2024-10-23 23:39:43,902 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/forester-heap/dll-queue-2.i[22605,22618] [2024-10-23 23:39:43,903 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/forester-heap/dll-queue-2.i[22697,22710] [2024-10-23 23:39:43,903 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/forester-heap/dll-queue-2.i[22774,22787] [2024-10-23 23:39:43,904 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/forester-heap/dll-queue-2.i[22869,22882] [2024-10-23 23:39:43,905 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/forester-heap/dll-queue-2.i[22946,22959] [2024-10-23 23:39:43,905 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/forester-heap/dll-queue-2.i[23029,23042] [2024-10-23 23:39:43,906 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/forester-heap/dll-queue-2.i[23124,23137] [2024-10-23 23:39:43,907 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/forester-heap/dll-queue-2.i[23201,23214] [2024-10-23 23:39:43,908 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/forester-heap/dll-queue-2.i[23284,23297] [2024-10-23 23:39:43,908 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/forester-heap/dll-queue-2.i[23373,23386] [2024-10-23 23:39:43,909 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/forester-heap/dll-queue-2.i[23459,23472] [2024-10-23 23:39:43,911 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/forester-heap/dll-queue-2.i[23604,23617] [2024-10-23 23:39:43,914 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-23 23:39:43,923 INFO L200 MainTranslator]: Completed pre-run [2024-10-23 23:39:43,948 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/forester-heap/dll-queue-2.i[22460,22473] [2024-10-23 23:39:43,949 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/forester-heap/dll-queue-2.i[22531,22544] [2024-10-23 23:39:43,950 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/forester-heap/dll-queue-2.i[22605,22618] [2024-10-23 23:39:43,950 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/forester-heap/dll-queue-2.i[22697,22710] [2024-10-23 23:39:43,951 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/forester-heap/dll-queue-2.i[22774,22787] [2024-10-23 23:39:43,952 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/forester-heap/dll-queue-2.i[22869,22882] [2024-10-23 23:39:43,952 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/forester-heap/dll-queue-2.i[22946,22959] [2024-10-23 23:39:43,953 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/forester-heap/dll-queue-2.i[23029,23042] [2024-10-23 23:39:43,953 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/forester-heap/dll-queue-2.i[23124,23137] [2024-10-23 23:39:43,954 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/forester-heap/dll-queue-2.i[23201,23214] [2024-10-23 23:39:43,954 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/forester-heap/dll-queue-2.i[23284,23297] [2024-10-23 23:39:43,955 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/forester-heap/dll-queue-2.i[23373,23386] [2024-10-23 23:39:43,956 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/forester-heap/dll-queue-2.i[23459,23472] [2024-10-23 23:39:43,957 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/forester-heap/dll-queue-2.i[23604,23617] [2024-10-23 23:39:43,958 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-23 23:39:43,978 INFO L204 MainTranslator]: Completed translation [2024-10-23 23:39:43,979 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:39:43 WrapperNode [2024-10-23 23:39:43,979 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-23 23:39:43,980 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-23 23:39:43,980 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-23 23:39:43,980 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-23 23:39:43,985 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:39:43" (1/1) ... [2024-10-23 23:39:43,998 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:39:43" (1/1) ... [2024-10-23 23:39:44,017 INFO L138 Inliner]: procedures = 119, calls = 38, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 224 [2024-10-23 23:39:44,018 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-23 23:39:44,018 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-23 23:39:44,018 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-23 23:39:44,019 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-23 23:39:44,027 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:39:43" (1/1) ... [2024-10-23 23:39:44,028 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:39:43" (1/1) ... [2024-10-23 23:39:44,030 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:39:43" (1/1) ... [2024-10-23 23:39:44,050 INFO L175 MemorySlicer]: Split 31 memory accesses to 2 slices as follows [2, 29]. 94 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 9 writes are split as follows [0, 9]. [2024-10-23 23:39:44,051 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:39:43" (1/1) ... [2024-10-23 23:39:44,051 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:39:43" (1/1) ... [2024-10-23 23:39:44,057 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:39:43" (1/1) ... [2024-10-23 23:39:44,066 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:39:43" (1/1) ... [2024-10-23 23:39:44,067 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:39:43" (1/1) ... [2024-10-23 23:39:44,068 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:39:43" (1/1) ... [2024-10-23 23:39:44,072 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-23 23:39:44,072 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-23 23:39:44,073 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-23 23:39:44,073 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-23 23:39:44,073 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:39:43" (1/1) ... [2024-10-23 23:39:44,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-23 23:39:44,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 23:39:44,099 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) [2024-10-23 23:39:44,105 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 [2024-10-23 23:39:44,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-23 23:39:44,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-23 23:39:44,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-23 23:39:44,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-23 23:39:44,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-23 23:39:44,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-23 23:39:44,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-23 23:39:44,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-23 23:39:44,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-23 23:39:44,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-23 23:39:44,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-23 23:39:44,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-23 23:39:44,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-23 23:39:44,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-23 23:39:44,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-23 23:39:44,263 INFO L238 CfgBuilder]: Building ICFG [2024-10-23 23:39:44,265 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-23 23:39:44,464 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-10-23 23:39:44,464 INFO L287 CfgBuilder]: Performing block encoding [2024-10-23 23:39:44,482 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-23 23:39:44,482 INFO L314 CfgBuilder]: Removed 31 assume(true) statements. [2024-10-23 23:39:44,483 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:39:44 BoogieIcfgContainer [2024-10-23 23:39:44,483 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-23 23:39:44,484 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-23 23:39:44,484 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-23 23:39:44,487 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-23 23:39:44,487 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 11:39:43" (1/3) ... [2024-10-23 23:39:44,488 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@494b1bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:39:44, skipping insertion in model container [2024-10-23 23:39:44,488 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:39:43" (2/3) ... [2024-10-23 23:39:44,488 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@494b1bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:39:44, skipping insertion in model container [2024-10-23 23:39:44,488 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:39:44" (3/3) ... [2024-10-23 23:39:44,489 INFO L112 eAbstractionObserver]: Analyzing ICFG dll-queue-2.i [2024-10-23 23:39:44,501 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-23 23:39:44,501 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-10-23 23:39:44,546 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-23 23:39:44,550 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;@471fc283, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-23 23:39:44,551 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2024-10-23 23:39:44,553 INFO L276 IsEmpty]: Start isEmpty. Operand has 82 states, 67 states have (on average 2.044776119402985) internal successors, (137), 81 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 23:39:44,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-10-23 23:39:44,558 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 23:39:44,558 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-10-23 23:39:44,559 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2024-10-23 23:39:44,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 23:39:44,563 INFO L85 PathProgramCache]: Analyzing trace with hash 11235370, now seen corresponding path program 1 times [2024-10-23 23:39:44,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 23:39:44,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612295791] [2024-10-23 23:39:44,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 23:39:44,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 23:39:44,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 23:39:44,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 23:39:44,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 23:39:44,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612295791] [2024-10-23 23:39:44,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612295791] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 23:39:44,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 23:39:44,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 23:39:44,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545042199] [2024-10-23 23:39:44,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 23:39:44,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-23 23:39:44,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 23:39:44,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-23 23:39:44,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-23 23:39:44,726 INFO L87 Difference]: Start difference. First operand has 82 states, 67 states have (on average 2.044776119402985) internal successors, (137), 81 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 23:39:44,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 23:39:44,747 INFO L93 Difference]: Finished difference Result 163 states and 273 transitions. [2024-10-23 23:39:44,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-23 23:39:44,749 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-10-23 23:39:44,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 23:39:44,755 INFO L225 Difference]: With dead ends: 163 [2024-10-23 23:39:44,755 INFO L226 Difference]: Without dead ends: 79 [2024-10-23 23:39:44,757 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-23 23:39:44,760 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-23 23:39:44,760 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 90 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-23 23:39:44,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-10-23 23:39:44,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2024-10-23 23:39:44,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 65 states have (on average 1.353846153846154) internal successors, (88), 78 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 23:39:44,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 88 transitions. [2024-10-23 23:39:44,783 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 88 transitions. Word has length 4 [2024-10-23 23:39:44,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 23:39:44,784 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 88 transitions. [2024-10-23 23:39:44,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 23:39:44,784 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 88 transitions. [2024-10-23 23:39:44,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-10-23 23:39:44,784 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 23:39:44,785 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-10-23 23:39:44,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-23 23:39:44,785 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2024-10-23 23:39:44,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 23:39:44,785 INFO L85 PathProgramCache]: Analyzing trace with hash 346540763, now seen corresponding path program 1 times [2024-10-23 23:39:44,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 23:39:44,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576510022] [2024-10-23 23:39:44,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 23:39:44,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 23:39:44,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 23:39:44,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 23:39:44,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 23:39:44,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576510022] [2024-10-23 23:39:44,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576510022] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 23:39:44,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 23:39:44,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 23:39:44,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842412717] [2024-10-23 23:39:44,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 23:39:44,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 23:39:44,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 23:39:44,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 23:39:44,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 23:39:44,875 INFO L87 Difference]: Start difference. First operand 79 states and 88 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 23:39:44,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 23:39:44,911 INFO L93 Difference]: Finished difference Result 79 states and 88 transitions. [2024-10-23 23:39:44,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 23:39:44,912 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-10-23 23:39:44,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 23:39:44,914 INFO L225 Difference]: With dead ends: 79 [2024-10-23 23:39:44,914 INFO L226 Difference]: Without dead ends: 69 [2024-10-23 23:39:44,914 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 23:39:44,915 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 75 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-23 23:39:44,915 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 64 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-23 23:39:44,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2024-10-23 23:39:44,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2024-10-23 23:39:44,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 60 states have (on average 1.3) internal successors, (78), 68 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 23:39:44,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 78 transitions. [2024-10-23 23:39:44,925 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 78 transitions. Word has length 5 [2024-10-23 23:39:44,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 23:39:44,926 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 78 transitions. [2024-10-23 23:39:44,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 23:39:44,926 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 78 transitions. [2024-10-23 23:39:44,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-23 23:39:44,926 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 23:39:44,926 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 23:39:44,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-23 23:39:44,927 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2024-10-23 23:39:44,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 23:39:44,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1300016296, now seen corresponding path program 1 times [2024-10-23 23:39:44,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 23:39:44,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060336050] [2024-10-23 23:39:44,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 23:39:44,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 23:39:44,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 23:39:45,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 23:39:45,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 23:39:45,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060336050] [2024-10-23 23:39:45,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060336050] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 23:39:45,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 23:39:45,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 23:39:45,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426239084] [2024-10-23 23:39:45,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 23:39:45,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-23 23:39:45,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 23:39:45,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-23 23:39:45,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-23 23:39:45,177 INFO L87 Difference]: Start difference. First operand 69 states and 78 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 23:39:45,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 23:39:45,267 INFO L93 Difference]: Finished difference Result 118 states and 131 transitions. [2024-10-23 23:39:45,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-23 23:39:45,268 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-10-23 23:39:45,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 23:39:45,269 INFO L225 Difference]: With dead ends: 118 [2024-10-23 23:39:45,270 INFO L226 Difference]: Without dead ends: 116 [2024-10-23 23:39:45,271 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-23 23:39:45,272 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 159 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-23 23:39:45,272 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 121 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-23 23:39:45,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-10-23 23:39:45,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 67. [2024-10-23 23:39:45,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 59 states have (on average 1.2881355932203389) internal successors, (76), 66 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 23:39:45,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 76 transitions. [2024-10-23 23:39:45,288 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 76 transitions. Word has length 8 [2024-10-23 23:39:45,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 23:39:45,288 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 76 transitions. [2024-10-23 23:39:45,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 23:39:45,289 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 76 transitions. [2024-10-23 23:39:45,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-10-23 23:39:45,289 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 23:39:45,289 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 23:39:45,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-23 23:39:45,289 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2024-10-23 23:39:45,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 23:39:45,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1331859152, now seen corresponding path program 1 times [2024-10-23 23:39:45,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 23:39:45,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430190691] [2024-10-23 23:39:45,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 23:39:45,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 23:39:45,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 23:39:45,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 23:39:45,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 23:39:45,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430190691] [2024-10-23 23:39:45,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430190691] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 23:39:45,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 23:39:45,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 23:39:45,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640700572] [2024-10-23 23:39:45,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 23:39:45,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 23:39:45,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 23:39:45,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 23:39:45,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 23:39:45,386 INFO L87 Difference]: Start difference. First operand 67 states and 76 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 23:39:45,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 23:39:45,428 INFO L93 Difference]: Finished difference Result 152 states and 177 transitions. [2024-10-23 23:39:45,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 23:39:45,430 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-10-23 23:39:45,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 23:39:45,430 INFO L225 Difference]: With dead ends: 152 [2024-10-23 23:39:45,430 INFO L226 Difference]: Without dead ends: 86 [2024-10-23 23:39:45,431 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 23:39:45,431 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 17 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-23 23:39:45,432 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 132 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-23 23:39:45,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-10-23 23:39:45,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 75. [2024-10-23 23:39:45,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 67 states have (on average 1.2686567164179106) internal successors, (85), 74 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 23:39:45,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 85 transitions. [2024-10-23 23:39:45,443 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 85 transitions. Word has length 11 [2024-10-23 23:39:45,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 23:39:45,443 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 85 transitions. [2024-10-23 23:39:45,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 23:39:45,443 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 85 transitions. [2024-10-23 23:39:45,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-10-23 23:39:45,444 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 23:39:45,444 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 23:39:45,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-23 23:39:45,445 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2024-10-23 23:39:45,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 23:39:45,445 INFO L85 PathProgramCache]: Analyzing trace with hash -591627506, now seen corresponding path program 1 times [2024-10-23 23:39:45,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 23:39:45,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207306326] [2024-10-23 23:39:45,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 23:39:45,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 23:39:45,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 23:39:45,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 23:39:45,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 23:39:45,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207306326] [2024-10-23 23:39:45,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207306326] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 23:39:45,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 23:39:45,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-23 23:39:45,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130929845] [2024-10-23 23:39:45,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 23:39:45,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-23 23:39:45,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 23:39:45,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-23 23:39:45,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-23 23:39:45,568 INFO L87 Difference]: Start difference. First operand 75 states and 85 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 23:39:45,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 23:39:45,652 INFO L93 Difference]: Finished difference Result 90 states and 103 transitions. [2024-10-23 23:39:45,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-23 23:39:45,652 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-10-23 23:39:45,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 23:39:45,653 INFO L225 Difference]: With dead ends: 90 [2024-10-23 23:39:45,653 INFO L226 Difference]: Without dead ends: 70 [2024-10-23 23:39:45,654 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-23 23:39:45,654 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 6 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-23 23:39:45,654 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 260 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-23 23:39:45,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2024-10-23 23:39:45,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2024-10-23 23:39:45,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 62 states have (on average 1.2580645161290323) internal successors, (78), 69 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 23:39:45,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 78 transitions. [2024-10-23 23:39:45,663 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 78 transitions. Word has length 16 [2024-10-23 23:39:45,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 23:39:45,663 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 78 transitions. [2024-10-23 23:39:45,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 23:39:45,664 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 78 transitions. [2024-10-23 23:39:45,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-10-23 23:39:45,664 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 23:39:45,665 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 23:39:45,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-23 23:39:45,665 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2024-10-23 23:39:45,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 23:39:45,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1690121268, now seen corresponding path program 1 times [2024-10-23 23:39:45,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 23:39:45,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439777052] [2024-10-23 23:39:45,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 23:39:45,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 23:39:45,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 23:39:45,812 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 23:39:45,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 23:39:45,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439777052] [2024-10-23 23:39:45,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439777052] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-23 23:39:45,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1574003464] [2024-10-23 23:39:45,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 23:39:45,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-23 23:39:45,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 23:39:45,815 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) [2024-10-23 23:39:45,816 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-23 23:39:45,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 23:39:45,922 INFO L255 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-23 23:39:45,926 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-23 23:39:45,964 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2024-10-23 23:39:46,008 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 33 [2024-10-23 23:39:46,026 INFO L349 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2024-10-23 23:39:46,026 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 83 treesize of output 53 [2024-10-23 23:39:46,034 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 24 [2024-10-23 23:39:46,043 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 26 [2024-10-23 23:39:46,055 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-10-23 23:39:46,056 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 35 [2024-10-23 23:39:46,061 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-10-23 23:39:46,074 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-10-23 23:39:46,087 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-23 23:39:46,087 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-10-23 23:39:46,118 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-10-23 23:39:46,118 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2024-10-23 23:39:46,191 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2024-10-23 23:39:46,194 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 23:39:46,195 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-23 23:39:46,236 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_195 (Array Int Int))) (not (= (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_195) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) 0))) is different from false [2024-10-23 23:39:46,248 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-23 23:39:46,249 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 30 [2024-10-23 23:39:46,264 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-23 23:39:46,264 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 334 treesize of output 225 [2024-10-23 23:39:46,283 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-23 23:39:46,283 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 142 treesize of output 141 [2024-10-23 23:39:46,294 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 132 treesize of output 126 [2024-10-23 23:39:46,446 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 23:39:46,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1574003464] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-23 23:39:46,447 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-23 23:39:46,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-10-23 23:39:46,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917355867] [2024-10-23 23:39:46,447 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-23 23:39:46,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-23 23:39:46,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 23:39:46,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-23 23:39:46,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=52, Unknown=1, NotChecked=14, Total=90 [2024-10-23 23:39:46,449 INFO L87 Difference]: Start difference. First operand 70 states and 78 transitions. Second operand has 10 states, 10 states have (on average 3.6) internal successors, (36), 9 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 23:39:46,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 23:39:46,570 INFO L93 Difference]: Finished difference Result 143 states and 157 transitions. [2024-10-23 23:39:46,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-23 23:39:46,570 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.6) internal successors, (36), 9 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2024-10-23 23:39:46,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 23:39:46,571 INFO L225 Difference]: With dead ends: 143 [2024-10-23 23:39:46,571 INFO L226 Difference]: Without dead ends: 141 [2024-10-23 23:39:46,571 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=63, Unknown=1, NotChecked=16, Total=110 [2024-10-23 23:39:46,572 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 193 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 101 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-23 23:39:46,572 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 338 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 116 Invalid, 0 Unknown, 101 Unchecked, 0.1s Time] [2024-10-23 23:39:46,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2024-10-23 23:39:46,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 83. [2024-10-23 23:39:46,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 75 states have (on average 1.24) internal successors, (93), 82 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 23:39:46,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 93 transitions. [2024-10-23 23:39:46,579 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 93 transitions. Word has length 18 [2024-10-23 23:39:46,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 23:39:46,579 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 93 transitions. [2024-10-23 23:39:46,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.6) internal successors, (36), 9 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 23:39:46,580 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 93 transitions. [2024-10-23 23:39:46,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-10-23 23:39:46,580 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 23:39:46,580 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 23:39:46,595 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-23 23:39:46,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-10-23 23:39:46,787 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2024-10-23 23:39:46,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 23:39:46,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1171861483, now seen corresponding path program 1 times [2024-10-23 23:39:46,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 23:39:46,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516665150] [2024-10-23 23:39:46,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 23:39:46,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 23:39:46,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 23:39:46,823 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 23:39:46,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 23:39:46,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516665150] [2024-10-23 23:39:46,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516665150] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 23:39:46,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 23:39:46,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 23:39:46,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333365376] [2024-10-23 23:39:46,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 23:39:46,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 23:39:46,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 23:39:46,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 23:39:46,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 23:39:46,825 INFO L87 Difference]: Start difference. First operand 83 states and 93 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 23:39:46,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 23:39:46,852 INFO L93 Difference]: Finished difference Result 173 states and 198 transitions. [2024-10-23 23:39:46,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 23:39:46,852 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-10-23 23:39:46,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 23:39:46,853 INFO L225 Difference]: With dead ends: 173 [2024-10-23 23:39:46,853 INFO L226 Difference]: Without dead ends: 107 [2024-10-23 23:39:46,853 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 23:39:46,854 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 24 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-23 23:39:46,854 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 124 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-23 23:39:46,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-10-23 23:39:46,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 96. [2024-10-23 23:39:46,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 88 states have (on average 1.2045454545454546) internal successors, (106), 95 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 23:39:46,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 106 transitions. [2024-10-23 23:39:46,867 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 106 transitions. Word has length 19 [2024-10-23 23:39:46,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 23:39:46,868 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 106 transitions. [2024-10-23 23:39:46,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 23:39:46,868 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 106 transitions. [2024-10-23 23:39:46,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-10-23 23:39:46,871 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 23:39:46,871 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 23:39:46,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-23 23:39:46,871 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2024-10-23 23:39:46,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 23:39:46,872 INFO L85 PathProgramCache]: Analyzing trace with hash -172877468, now seen corresponding path program 1 times [2024-10-23 23:39:46,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 23:39:46,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675497975] [2024-10-23 23:39:46,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 23:39:46,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 23:39:46,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 23:39:46,954 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-23 23:39:46,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 23:39:46,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675497975] [2024-10-23 23:39:46,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675497975] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 23:39:46,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 23:39:46,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 23:39:46,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023492724] [2024-10-23 23:39:46,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 23:39:46,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 23:39:46,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 23:39:46,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 23:39:46,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 23:39:46,956 INFO L87 Difference]: Start difference. First operand 96 states and 106 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 23:39:46,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 23:39:46,990 INFO L93 Difference]: Finished difference Result 200 states and 227 transitions. [2024-10-23 23:39:46,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 23:39:46,991 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2024-10-23 23:39:46,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 23:39:46,991 INFO L225 Difference]: With dead ends: 200 [2024-10-23 23:39:46,991 INFO L226 Difference]: Without dead ends: 121 [2024-10-23 23:39:46,991 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 23:39:46,992 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 30 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-23 23:39:46,992 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 139 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-23 23:39:46,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-10-23 23:39:47,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 109. [2024-10-23 23:39:47,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 101 states have (on average 1.188118811881188) internal successors, (120), 108 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 23:39:47,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 120 transitions. [2024-10-23 23:39:47,001 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 120 transitions. Word has length 26 [2024-10-23 23:39:47,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 23:39:47,001 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 120 transitions. [2024-10-23 23:39:47,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 23:39:47,001 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 120 transitions. [2024-10-23 23:39:47,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-10-23 23:39:47,003 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 23:39:47,003 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 23:39:47,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-23 23:39:47,003 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2024-10-23 23:39:47,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 23:39:47,004 INFO L85 PathProgramCache]: Analyzing trace with hash -746524485, now seen corresponding path program 1 times [2024-10-23 23:39:47,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 23:39:47,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465884112] [2024-10-23 23:39:47,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 23:39:47,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 23:39:47,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 23:39:47,543 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 23:39:47,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 23:39:47,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465884112] [2024-10-23 23:39:47,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465884112] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-23 23:39:47,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [82761944] [2024-10-23 23:39:47,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 23:39:47,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-23 23:39:47,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 23:39:47,546 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) [2024-10-23 23:39:47,547 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-23 23:39:47,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 23:39:47,639 INFO L255 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-10-23 23:39:47,641 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-23 23:39:47,646 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2024-10-23 23:39:47,678 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-10-23 23:39:47,678 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-10-23 23:39:47,688 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 26 [2024-10-23 23:39:47,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-23 23:39:47,692 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-10-23 23:39:47,699 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 33 [2024-10-23 23:39:47,713 INFO L349 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2024-10-23 23:39:47,714 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 93 treesize of output 61 [2024-10-23 23:39:47,719 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2024-10-23 23:39:47,739 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-10-23 23:39:47,824 INFO L349 Elim1Store]: treesize reduction 31, result has 3.1 percent of original size [2024-10-23 23:39:47,825 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 87 treesize of output 49 [2024-10-23 23:39:47,834 INFO L349 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2024-10-23 23:39:47,834 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 75 treesize of output 47 [2024-10-23 23:39:47,846 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2024-10-23 23:39:47,847 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 80 treesize of output 49 [2024-10-23 23:39:47,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-23 23:39:47,860 INFO L349 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2024-10-23 23:39:47,861 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 79 treesize of output 64 [2024-10-23 23:39:47,867 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2024-10-23 23:39:47,883 INFO L349 Elim1Store]: treesize reduction 8, result has 61.9 percent of original size [2024-10-23 23:39:47,883 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 22 [2024-10-23 23:39:47,935 INFO L349 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2024-10-23 23:39:47,936 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 56 [2024-10-23 23:39:48,048 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2024-10-23 23:39:48,048 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 23 [2024-10-23 23:39:48,051 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 23:39:48,051 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-23 23:39:48,071 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_451 (Array Int Int))) (not (= (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_451) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) 0))) is different from false [2024-10-23 23:39:48,138 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-23 23:39:48,138 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 34 [2024-10-23 23:39:48,182 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-23 23:39:48,182 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 98 treesize of output 67 [2024-10-23 23:39:48,201 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-23 23:39:48,202 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 150001 treesize of output 105440 [2024-10-23 23:39:48,685 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-23 23:39:48,685 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 2349 treesize of output 2208 [2024-10-23 23:39:48,736 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-23 23:39:48,736 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 2211 treesize of output 1999 [2024-10-23 23:39:48,768 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-23 23:39:48,770 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1981 treesize of output 1910 [2024-10-23 23:39:48,802 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1901 treesize of output 1863 [2024-10-23 23:39:49,557 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2024-10-23 23:39:49,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [82761944] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-23 23:39:49,557 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-23 23:39:49,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 7] total 16 [2024-10-23 23:39:49,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974399838] [2024-10-23 23:39:49,558 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-23 23:39:49,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-23 23:39:49,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 23:39:49,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-23 23:39:49,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=193, Unknown=6, NotChecked=28, Total=272 [2024-10-23 23:39:49,560 INFO L87 Difference]: Start difference. First operand 109 states and 120 transitions. Second operand has 17 states, 17 states have (on average 3.6470588235294117) internal successors, (62), 16 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 23:39:53,612 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 [0] [2024-10-23 23:39:57,649 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 [0] [2024-10-23 23:39:58,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 23:39:58,218 INFO L93 Difference]: Finished difference Result 181 states and 197 transitions. [2024-10-23 23:39:58,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-23 23:39:58,221 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.6470588235294117) internal successors, (62), 16 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2024-10-23 23:39:58,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 23:39:58,222 INFO L225 Difference]: With dead ends: 181 [2024-10-23 23:39:58,222 INFO L226 Difference]: Without dead ends: 179 [2024-10-23 23:39:58,222 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=103, Invalid=355, Unknown=8, NotChecked=40, Total=506 [2024-10-23 23:39:58,223 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 222 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 16 mSolverCounterUnsat, 21 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 774 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 21 IncrementalHoareTripleChecker+Unknown, 140 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2024-10-23 23:39:58,223 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 774 Invalid, 559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 382 Invalid, 21 Unknown, 140 Unchecked, 8.5s Time] [2024-10-23 23:39:58,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-10-23 23:39:58,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 125. [2024-10-23 23:39:58,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 117 states have (on average 1.170940170940171) internal successors, (137), 124 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 23:39:58,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 137 transitions. [2024-10-23 23:39:58,230 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 137 transitions. Word has length 27 [2024-10-23 23:39:58,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 23:39:58,230 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 137 transitions. [2024-10-23 23:39:58,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.6470588235294117) internal successors, (62), 16 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 23:39:58,231 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 137 transitions. [2024-10-23 23:39:58,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-10-23 23:39:58,231 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 23:39:58,231 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 23:39:58,244 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-23 23:39:58,435 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,SelfDestructingSolverStorable8 [2024-10-23 23:39:58,436 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2024-10-23 23:39:58,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 23:39:58,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1798535576, now seen corresponding path program 1 times [2024-10-23 23:39:58,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 23:39:58,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047981010] [2024-10-23 23:39:58,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 23:39:58,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 23:39:58,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 23:39:58,476 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-23 23:39:58,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 23:39:58,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047981010] [2024-10-23 23:39:58,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047981010] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 23:39:58,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 23:39:58,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 23:39:58,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852708583] [2024-10-23 23:39:58,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 23:39:58,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 23:39:58,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 23:39:58,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 23:39:58,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 23:39:58,477 INFO L87 Difference]: Start difference. First operand 125 states and 137 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 23:39:58,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 23:39:58,491 INFO L93 Difference]: Finished difference Result 128 states and 140 transitions. [2024-10-23 23:39:58,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 23:39:58,492 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2024-10-23 23:39:58,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 23:39:58,492 INFO L225 Difference]: With dead ends: 128 [2024-10-23 23:39:58,492 INFO L226 Difference]: Without dead ends: 126 [2024-10-23 23:39:58,493 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 23:39:58,493 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 0 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-23 23:39:58,493 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 142 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-23 23:39:58,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2024-10-23 23:39:58,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2024-10-23 23:39:58,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 118 states have (on average 1.1694915254237288) internal successors, (138), 125 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 23:39:58,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 138 transitions. [2024-10-23 23:39:58,504 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 138 transitions. Word has length 28 [2024-10-23 23:39:58,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 23:39:58,504 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 138 transitions. [2024-10-23 23:39:58,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 23:39:58,505 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 138 transitions. [2024-10-23 23:39:58,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-10-23 23:39:58,505 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 23:39:58,506 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 23:39:58,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-23 23:39:58,506 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2024-10-23 23:39:58,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 23:39:58,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1798533654, now seen corresponding path program 1 times [2024-10-23 23:39:58,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 23:39:58,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333963938] [2024-10-23 23:39:58,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 23:39:58,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 23:39:58,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 23:39:58,841 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 23:39:58,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 23:39:58,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333963938] [2024-10-23 23:39:58,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333963938] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-23 23:39:58,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [872149950] [2024-10-23 23:39:58,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 23:39:58,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-23 23:39:58,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 23:39:58,843 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) [2024-10-23 23:39:58,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-23 23:39:58,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 23:39:58,938 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-10-23 23:39:58,940 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-23 23:39:58,943 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2024-10-23 23:39:58,971 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-23 23:39:58,971 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-10-23 23:39:58,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-23 23:39:58,975 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2024-10-23 23:39:58,978 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-10-23 23:39:58,982 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 26 [2024-10-23 23:39:58,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-23 23:39:58,985 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-10-23 23:39:58,989 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-23 23:39:58,990 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-23 23:39:58,991 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-10-23 23:39:59,015 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-10-23 23:39:59,015 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 79 treesize of output 68 [2024-10-23 23:39:59,020 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 1 [2024-10-23 23:39:59,023 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 11 [2024-10-23 23:39:59,118 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2024-10-23 23:39:59,121 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-10-23 23:39:59,152 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-10-23 23:39:59,156 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 23:39:59,156 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-23 23:39:59,220 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 52 [2024-10-23 23:39:59,226 WARN L851 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_588 (Array Int Int))) (= |c_ULTIMATE.start_main_~item~0#1.base| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_588) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|))) (forall ((v_ArrVal_589 (Array Int Int))) (= |c_ULTIMATE.start_main_~item~0#1.offset| (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_589) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)))) is different from false [2024-10-23 23:39:59,255 INFO L349 Elim1Store]: treesize reduction 15, result has 64.3 percent of original size [2024-10-23 23:39:59,255 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 168 treesize of output 147 [2024-10-23 23:39:59,266 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-23 23:39:59,267 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 124 treesize of output 110 [2024-10-23 23:39:59,285 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-23 23:39:59,286 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 298 treesize of output 261 [2024-10-23 23:39:59,309 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-23 23:39:59,310 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 187 treesize of output 190 [2024-10-23 23:39:59,338 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-23 23:39:59,339 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 230 treesize of output 239 [2024-10-23 23:39:59,354 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 185 treesize of output 179 [2024-10-23 23:39:59,366 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 243 treesize of output 205 [2024-10-23 23:39:59,375 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 151 treesize of output 145 [2024-10-23 23:39:59,865 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 23:39:59,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [872149950] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-23 23:39:59,865 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-23 23:39:59,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 16 [2024-10-23 23:39:59,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119503879] [2024-10-23 23:39:59,866 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-23 23:39:59,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-23 23:39:59,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 23:39:59,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-23 23:39:59,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=203, Unknown=1, NotChecked=28, Total=272 [2024-10-23 23:39:59,868 INFO L87 Difference]: Start difference. First operand 126 states and 138 transitions. Second operand has 17 states, 17 states have (on average 4.705882352941177) internal successors, (80), 16 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 23:40:00,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 23:40:00,227 INFO L93 Difference]: Finished difference Result 207 states and 225 transitions. [2024-10-23 23:40:00,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-23 23:40:00,229 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.705882352941177) internal successors, (80), 16 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2024-10-23 23:40:00,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 23:40:00,230 INFO L225 Difference]: With dead ends: 207 [2024-10-23 23:40:00,230 INFO L226 Difference]: Without dead ends: 205 [2024-10-23 23:40:00,230 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 47 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=104, Invalid=361, Unknown=1, NotChecked=40, Total=506 [2024-10-23 23:40:00,231 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 186 mSDsluCounter, 610 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 667 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 121 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-23 23:40:00,231 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 667 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 253 Invalid, 0 Unknown, 121 Unchecked, 0.2s Time] [2024-10-23 23:40:00,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2024-10-23 23:40:00,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 135. [2024-10-23 23:40:00,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 127 states have (on average 1.1653543307086613) internal successors, (148), 134 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 23:40:00,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 148 transitions. [2024-10-23 23:40:00,242 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 148 transitions. Word has length 28 [2024-10-23 23:40:00,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 23:40:00,242 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 148 transitions. [2024-10-23 23:40:00,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.705882352941177) internal successors, (80), 16 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 23:40:00,242 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 148 transitions. [2024-10-23 23:40:00,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-10-23 23:40:00,243 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 23:40:00,243 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 23:40:00,261 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-23 23:40:00,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-23 23:40:00,444 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2024-10-23 23:40:00,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 23:40:00,444 INFO L85 PathProgramCache]: Analyzing trace with hash -366206391, now seen corresponding path program 1 times [2024-10-23 23:40:00,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 23:40:00,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840496152] [2024-10-23 23:40:00,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 23:40:00,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 23:40:00,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 23:40:00,883 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 23:40:00,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 23:40:00,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840496152] [2024-10-23 23:40:00,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840496152] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-23 23:40:00,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [184734337] [2024-10-23 23:40:00,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 23:40:00,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-23 23:40:00,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 23:40:00,885 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) [2024-10-23 23:40:00,887 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-23 23:40:00,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 23:40:01,002 INFO L255 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-10-23 23:40:01,005 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-23 23:40:01,009 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2024-10-23 23:40:01,035 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-10-23 23:40:01,035 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-10-23 23:40:01,042 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 26 [2024-10-23 23:40:01,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-23 23:40:01,045 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2024-10-23 23:40:01,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-23 23:40:01,052 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 16 [2024-10-23 23:40:01,054 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-10-23 23:40:01,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-23 23:40:01,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-23 23:40:01,063 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26 [2024-10-23 23:40:01,097 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-10-23 23:40:01,103 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-10-23 23:40:01,179 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2024-10-23 23:40:01,179 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 52 [2024-10-23 23:40:01,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-23 23:40:01,200 INFO L349 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2024-10-23 23:40:01,201 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 66 treesize of output 57 [2024-10-23 23:40:01,208 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-23 23:40:01,208 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 14 [2024-10-23 23:40:01,215 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 11 [2024-10-23 23:40:01,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-23 23:40:01,227 INFO L349 Elim1Store]: treesize reduction 31, result has 3.1 percent of original size [2024-10-23 23:40:01,228 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 111 treesize of output 64 [2024-10-23 23:40:01,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-23 23:40:01,240 INFO L349 Elim1Store]: treesize reduction 31, result has 3.1 percent of original size [2024-10-23 23:40:01,240 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 76 treesize of output 41 [2024-10-23 23:40:01,256 INFO L349 Elim1Store]: treesize reduction 31, result has 3.1 percent of original size [2024-10-23 23:40:01,256 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 31 [2024-10-23 23:40:01,310 INFO L349 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2024-10-23 23:40:01,310 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 97 treesize of output 68 [2024-10-23 23:40:01,313 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 11 [2024-10-23 23:40:01,486 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2024-10-23 23:40:01,486 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 60 treesize of output 23 [2024-10-23 23:40:01,489 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-10-23 23:40:01,490 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 23:40:01,490 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-23 23:40:01,521 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_746 (Array Int Int)) (v_ArrVal_745 (Array Int Int))) (not (= (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_746))) (select .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_745) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)) 0))) is different from false [2024-10-23 23:40:01,623 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-23 23:40:01,623 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 143 treesize of output 120 [2024-10-23 23:40:01,682 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-23 23:40:01,683 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 1035 treesize of output 907 [2024-10-23 23:40:01,696 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-23 23:40:02,137 INFO L349 Elim1Store]: treesize reduction 490, result has 30.6 percent of original size [2024-10-23 23:40:02,139 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 1 disjoint index pairs (out of 36 index pairs), introduced 13 new quantified variables, introduced 46 case distinctions, treesize of input 1924159 treesize of output 1429581 [2024-10-23 23:40:30,253 WARN L286 SmtUtils]: Spent 28.11s on a formula simplification. DAG size of input: 1485 DAG size of output: 648 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-10-23 23:40:33,238 INFO L349 Elim1Store]: treesize reduction 335, result has 59.0 percent of original size [2024-10-23 23:40:33,239 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 13 select indices, 13 select index equivalence classes, 0 disjoint index pairs (out of 78 index pairs), introduced 19 new quantified variables, introduced 78 case distinctions, treesize of input 354226 treesize of output 291860 [2024-10-23 23:40:38,859 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-23 23:40:38,869 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 3056837 treesize of output 2972683 [2024-10-23 23:40:48,825 WARN L286 SmtUtils]: Spent 9.94s on a formula simplification. DAG size of input: 7266 DAG size of output: 1550 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-10-23 23:40:49,788 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 82050 treesize of output 81706 [2024-10-23 23:40:51,029 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-23 23:40:51,031 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 119263 treesize of output 99585 [2024-10-23 23:41:00,034 WARN L286 SmtUtils]: Spent 9.00s on a formula simplification. DAG size of input: 1800 DAG size of output: 1802 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-10-23 23:41:00,150 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-23 23:41:00,152 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 94535 treesize of output 87607 [2024-10-23 23:41:02,103 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 87485 treesize of output 87133 [2024-10-23 23:41:04,081 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 87147 treesize of output 86051 [2024-10-23 23:41:06,260 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-23 23:41:06,262 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 86133 treesize of output 82981